diff --git a/samples/gstreamer/gst_launch/action_recognition/action_recognition.sh b/samples/gstreamer/gst_launch/action_recognition/action_recognition.sh
index 6b9cdda0..239ab5be 100755
--- a/samples/gstreamer/gst_launch/action_recognition/action_recognition.sh
+++ b/samples/gstreamer/gst_launch/action_recognition/action_recognition.sh
@@ -13,6 +13,18 @@ else
   echo "MODELS_PATH: $MODELS_PATH"
 fi
 
+# List help message
+if [ "$1" = "--help" ] || [ "$1" = "-h" ]; then
+  echo "Usage: $0 [INPUT] [DEVICE] [OUTPUT]"
+  echo ""
+  echo "Arguments:"
+  echo "  INPUT   - Input source (default: Pexels video URL)"
+  echo "  DEVICE  - Device (default: CPU). Supported: CPU, GPU, NPU"
+  echo "  OUTPUT  - Output type (default: file). Supported: file, display, fps, json, display-and-json"
+  echo ""
+  exit 0
+fi
+
 INPUT=${1:-https://videos.pexels.com/video-files/5144823/5144823-uhd_3840_2160_25fps.mp4}
 DEVICE=${2:-CPU}
 OUTPUT=${3:-file} # Supported values: display, fps, json, display-and-json, file
@@ -27,7 +39,7 @@ if [[ -z $INPUT ]]; then
 fi
 
 if [[ $OUTPUT == "display" ]]; then
-  SINK_ELEMENT="gvawatermark ! videoconvert ! gvafpscounter ! autovideosink sync=false"
+  SINK_ELEMENT="vapostproc ! gvawatermark ! videoconvert ! gvafpscounter ! autovideosink sync=false"
 elif [[ $OUTPUT == "fps" ]]; then
   SINK_ELEMENT=" gvafpscounter ! fakesink async=false"
 elif [[ $OUTPUT == "json" ]]; then
@@ -35,7 +47,7 @@ elif [[ $OUTPUT == "json" ]]; then
   SINK_ELEMENT=" gvametaconvert ! gvametapublish file-format=json-lines file-path=output.json ! fakesink async=false"
 elif [[ $OUTPUT == "display-and-json" ]]; then
   rm -f output.json
-  SINK_ELEMENT="gvawatermark ! gvametaconvert ! gvametapublish file-format=json-lines file-path=output.json ! videoconvert ! gvafpscounter ! autovideosink sync=false"
+  SINK_ELEMENT="vapostproc ! gvawatermark ! gvametaconvert ! gvametapublish file-format=json-lines file-path=output.json ! videoconvert ! gvafpscounter ! autovideosink sync=false"
 elif [[ $OUTPUT == "file" ]]; then
   FILE="$(basename ${INPUT%.*})"
   rm -f "action_recognition_${FILE}_${DEVICE}.mp4"
@@ -47,7 +59,7 @@ elif [[ $OUTPUT == "file" ]]; then
     echo "Error - VA-API H.264 encoder not found."
     exit
   fi
-  SINK_ELEMENT="gvawatermark ! gvafpscounter ! ${ENCODER} ! h264parse ! mp4mux ! filesink location=action_recognition_${FILE}_${DEVICE}.mp4"
+  SINK_ELEMENT="vapostproc ! gvawatermark ! gvafpscounter ! ${ENCODER} ! h264parse ! mp4mux ! filesink location=action_recognition_${FILE}_${DEVICE}.mp4"
 else
   echo Error wrong value for OUTPUT parameter
   echo Valid values: "display" - render to screen, "file" - render to file, "fps" - print FPS, "json" - write to output.json, "display-and-json" - render to screen and write to output.json
diff --git a/samples/gstreamer/gst_launch/custom_postproc/classify/build_and_run.sh b/samples/gstreamer/gst_launch/custom_postproc/classify/build_and_run.sh
index 3b2e9c41..795da188 100755
--- a/samples/gstreamer/gst_launch/custom_postproc/classify/build_and_run.sh
+++ b/samples/gstreamer/gst_launch/custom_postproc/classify/build_and_run.sh
@@ -18,6 +18,18 @@ else
 	echo "MODELS_PATH: $MODELS_PATH"
 fi
 
+# Check help message
+if [ "$1" = "--help" ] || [ "$1" = "-h" ]; then
+	echo "Usage: $0 [DEVICE] [OUTPUT] [INPUT]"
+	echo ""
+	echo "Arguments:"
+	echo "  DEVICE    - Device (default: GPU). Supported: CPU, GPU, NPU"
+	echo "  OUTPUT    - Output type (default: file). Supported: file, display, fps, json, display-and-json"
+	echo "  INPUT     - Input source (default: Pexels video URL)"
+	echo ""
+	exit 0
+fi
+
 DETECT_MODEL="centerface"
 DETECT_MODEL_PATH="$MODELS_PATH/public/$DETECT_MODEL/FP32/$DETECT_MODEL.xml"
 
@@ -89,9 +101,9 @@ if [[ "$OUTPUT" == "file" ]]; then
 		echo "Error - VA-API H.264 encoder not found."
 		exit 1
 	fi
-	SINK_ELEMENT="gvawatermark ! gvafpscounter ! ${ENCODER} ! h264parse ! mp4mux ! filesink location=$OUTPUT_FILE"
+	SINK_ELEMENT="vapostproc ! gvawatermark ! gvafpscounter ! ${ENCODER} ! h264parse ! mp4mux ! filesink location=$OUTPUT_FILE"
 elif [[ "$OUTPUT" == "display" ]] || [[ -z $OUTPUT ]]; then
-	SINK_ELEMENT="gvawatermark ! videoconvertscale ! gvafpscounter ! autovideosink sync=false"
+	SINK_ELEMENT="vapostproc ! gvawatermark ! videoconvertscale ! gvafpscounter ! autovideosink sync=false"
 elif [[ "$OUTPUT" == "fps" ]]; then
 	SINK_ELEMENT="gvafpscounter ! fakesink async=false"
 elif [[ "$OUTPUT" == "json" ]]; then
@@ -105,7 +117,7 @@ elif [[ "$OUTPUT" == "display-and-json" ]]; then
 	if [ -f "$OUTPUT_FILE" ]; then
 		rm "$OUTPUT_FILE"
 	fi
-	SINK_ELEMENT="gvawatermark ! gvametaconvert add-tensor-data=true ! gvametapublish file-format=json-lines file-path=$OUTPUT_FILE ! videoconvert ! gvafpscounter ! autovideosink sync=false"
+	SINK_ELEMENT="vapostproc ! gvawatermark ! gvametaconvert add-tensor-data=true ! gvametapublish file-format=json-lines file-path=$OUTPUT_FILE ! videoconvert ! gvafpscounter ! autovideosink sync=false"
 else
 	echo Error wrong value for SINK_ELEMENT parameter
 	echo Valid values: "file" - render to file, "display" - render to screen, "fps" - print FPS, "json" - write to json file, "display-and-json" - render to screen and write to json file
diff --git a/samples/gstreamer/gst_launch/custom_postproc/detect/build_and_run.sh b/samples/gstreamer/gst_launch/custom_postproc/detect/build_and_run.sh
index e4f7ad97..e5ffd435 100755
--- a/samples/gstreamer/gst_launch/custom_postproc/detect/build_and_run.sh
+++ b/samples/gstreamer/gst_launch/custom_postproc/detect/build_and_run.sh
@@ -18,6 +18,18 @@ else
 	echo "MODELS_PATH: $MODELS_PATH"
 fi
 
+# Print help message
+if [ "$1" = "--help" ] || [ "$1" = "-h" ]; then
+	echo "Usage: $0 [DEVICE] [OUTPUT] [INPUT]"
+	echo ""
+	echo "Arguments:"
+	echo "  DEVICE       - Device (default: GPU). Supported: CPU, GPU, NPU"
+	echo "  OUTPUT       - Output type (default: file). Supported: file, display, fps, json, display-and-json"
+	echo "  INPUT        - Input source (default: Pexels video URL)"
+	echo ""
+	exit 0
+fi
+
 MODEL="yolo11s"
 MODEL_PATH="$MODELS_PATH/public/$MODEL/FP32/$MODEL.xml"
 
@@ -81,9 +93,9 @@ if [[ "$OUTPUT" == "file" ]]; then
 		echo "Error - VA-API H.264 encoder not found."
 		exit 1
 	fi
-	SINK_ELEMENT="gvawatermark ! gvafpscounter ! ${ENCODER} ! h264parse ! mp4mux ! filesink location=$OUTPUT_FILE"
+	SINK_ELEMENT="vapostproc ! gvawatermark ! gvafpscounter ! ${ENCODER} ! h264parse ! mp4mux ! filesink location=$OUTPUT_FILE"
 elif [[ "$OUTPUT" == "display" ]] || [[ -z $OUTPUT ]]; then
-	SINK_ELEMENT="gvawatermark ! videoconvertscale ! gvafpscounter ! autovideosink sync=false"
+	SINK_ELEMENT="vapostproc ! gvawatermark ! videoconvertscale ! gvafpscounter ! autovideosink sync=false"
 elif [[ "$OUTPUT" == "fps" ]]; then
 	SINK_ELEMENT="gvafpscounter ! fakesink async=false"
 elif [[ "$OUTPUT" == "json" ]]; then
@@ -97,7 +109,7 @@ elif [[ "$OUTPUT" == "display-and-json" ]]; then
 	if [ -f "$OUTPUT_FILE" ]; then
 		rm "$OUTPUT_FILE"
 	fi
-	SINK_ELEMENT="gvawatermark ! gvametaconvert add-tensor-data=true ! gvametapublish file-format=json-lines file-path=$OUTPUT_FILE ! videoconvert ! gvafpscounter ! autovideosink sync=false"
+	SINK_ELEMENT="vapostproc ! gvawatermark ! gvametaconvert add-tensor-data=true ! gvametapublish file-format=json-lines file-path=$OUTPUT_FILE ! videoconvert ! gvafpscounter ! autovideosink sync=false"
 else
 	echo Error wrong value for SINK_ELEMENT parameter
 	echo Valid values: "file" - render to file, "display" - render to screen, "fps" - print FPS, "json" - write to json file, "display-and-json" - render to screen and write to json file
diff --git a/samples/gstreamer/gst_launch/detection_with_yolo/yolo_detect.sh b/samples/gstreamer/gst_launch/detection_with_yolo/yolo_detect.sh
index e295e96c..bb8883cb 100755
--- a/samples/gstreamer/gst_launch/detection_with_yolo/yolo_detect.sh
+++ b/samples/gstreamer/gst_launch/detection_with_yolo/yolo_detect.sh
@@ -17,6 +17,22 @@ else
   echo "MODELS_PATH: $MODELS_PATH"
 fi
 
+# List help message
+if [ "$1" = "--help" ] || [ "$1" = "-h" ]; then
+  echo "Usage: $0 [MODEL] [DEVICE] [INPUT] [OUTPUT] [PPBKEND] [PRECISION]"
+  echo ""
+  echo "Arguments:"
+  echo "  MODEL     - Model name (default: yolox_s)"
+  echo "            Supported: yolo_all, yolox-tiny, yolox_s, yolov7, yolov8s, yolov8n-obb, yolov8n-seg, yolov9c, yolov10s, yolo11s, yolo11s-obb, yolo11s-seg, yolo11s-pose"
+  echo "  DEVICE    - Device (default: GPU). Supported: CPU, GPU, NPU"
+  echo "  INPUT     - Input source (default: Pexels video URL)"
+  echo "  OUTPUT    - Output type (default: file). Supported: file, display, fps, json, display-and-json"
+  echo "  PPBKEND   - Preprocessing backend (default: auto). Supported: ie, opencv, va, va-surface-sharing"
+  echo "  PRECISION - Model precision (default: INT8). Supported: INT8, FP32, FP16"
+  echo ""
+  exit 0
+fi 
+
 MODEL=${1:-"yolox_s"}   # Supported values: yolo_all, yolox-tiny, yolox_s, yolov7, yolov8s, yolov8n-obb, yolov8n-seg, yolov9c, yolov10s, yolo11s, yolo11s-obb, yolo11s-seg, yolo11s-pose
 DEVICE=${2:-"GPU"}      # Supported values: CPU, GPU, NPU
 INPUT=${3:-"https://videos.pexels.com/video-files/1192116/1192116-sd_640_360_30fps.mp4"}
@@ -121,9 +137,9 @@ if [[ "$OUTPUT" == "file" ]]; then
     echo "Error - VA-API H.264 encoder not found."
     exit 1
   fi
-  SINK_ELEMENT="gvawatermark ! gvafpscounter ! ${ENCODER} ! h264parse ! mp4mux ! filesink location=yolo_${FILE}_${MODEL}_${PRECISION}_${DEVICE}.mp4"
+  SINK_ELEMENT="vapostproc ! gvawatermark ! gvafpscounter ! ${ENCODER} ! h264parse ! mp4mux ! filesink location=yolo_${FILE}_${MODEL}_${PRECISION}_${DEVICE}.mp4"
 elif [[ "$OUTPUT" == "display" ]] || [[ -z $OUTPUT ]]; then
-  SINK_ELEMENT="gvawatermark ! videoconvertscale ! gvafpscounter ! autovideosink sync=false"
+  SINK_ELEMENT="vapostproc ! gvawatermark ! videoconvertscale ! gvafpscounter ! autovideosink sync=false"
 elif [[ "$OUTPUT" == "fps" ]]; then
   SINK_ELEMENT="gvafpscounter ! fakesink async=false"
 elif [[ "$OUTPUT" == "json" ]]; then
@@ -131,7 +147,7 @@ elif [[ "$OUTPUT" == "json" ]]; then
   SINK_ELEMENT="gvametaconvert add-tensor-data=true ! gvametapublish file-format=json-lines file-path=output.json ! fakesink async=false"
 elif [[ "$OUTPUT" == "display-and-json" ]]; then
   rm -f output.json
-  SINK_ELEMENT="gvawatermark ! gvametaconvert add-tensor-data=true ! gvametapublish file-format=json-lines file-path=output.json ! videoconvert ! gvafpscounter ! autovideosink sync=false"
+  SINK_ELEMENT="vapostproc ! gvawatermark ! gvametaconvert add-tensor-data=true ! gvametapublish file-format=json-lines file-path=output.json ! videoconvert ! gvafpscounter ! autovideosink sync=false"
 else
   echo Error wrong value for SINK_ELEMENT parameter
   echo Valid values: "file" - render to file, "display" - render to screen, "fps" - print FPS, "json" - write to output.json, "display-and-json" - render to screen and write to output.json
diff --git a/samples/gstreamer/gst_launch/face_detection_and_classification/face_detection_and_classification.sh b/samples/gstreamer/gst_launch/face_detection_and_classification/face_detection_and_classification.sh
index d234dc5a..1a624308 100755
--- a/samples/gstreamer/gst_launch/face_detection_and_classification/face_detection_and_classification.sh
+++ b/samples/gstreamer/gst_launch/face_detection_and_classification/face_detection_and_classification.sh
@@ -13,6 +13,18 @@ else
   echo "MODELS_PATH: $MODELS_PATH"
 fi
 
+# List help message
+if [ "$1" = "--help" ] || [ "$1" = "-h" ]; then
+  echo "Usage: $0 [INPUT] [DEVICE] [OUTPUT]"
+  echo ""
+  echo "Arguments:"
+  echo "  INPUT     - Input source (default: Pexels video URL)"
+  echo "  DEVICE    - Device (default: CPU). Supported: CPU, GPU"
+  echo "  OUTPUT    - Output type (default: display). Supported: file, display, fps, json, display-and-json"
+  echo ""
+  exit 0
+fi
+
 INPUT=${1:-https://github.com/intel-iot-devkit/sample-videos/raw/master/head-pose-face-detection-female-and-male.mp4}
 DEVICE=${2:-CPU}
 OUTPUT=${3:-display} # Supported values: display, fps, json, display-and-json
@@ -30,7 +42,7 @@ else
 fi
 
 if [[ $OUTPUT == "display" ]] || [[ -z $OUTPUT ]]; then
-  SINK_ELEMENT="gvawatermark ! videoconvert ! gvafpscounter ! autovideosink sync=false"
+  SINK_ELEMENT="vapostproc ! gvawatermark ! videoconvert ! gvafpscounter ! autovideosink sync=false"
 elif [[ $OUTPUT == "fps" ]]; then
   SINK_ELEMENT="gvafpscounter ! fakesink async=false "
 elif [[ $OUTPUT == "json" ]]; then
@@ -38,7 +50,7 @@ elif [[ $OUTPUT == "json" ]]; then
   SINK_ELEMENT="gvametaconvert ! gvametapublish file-format=json-lines file-path=output.json ! fakesink async=false "
 elif [[ $OUTPUT == "display-and-json" ]]; then
   rm -f output.json
-  SINK_ELEMENT="gvawatermark ! gvametaconvert ! gvametapublish file-format=json-lines file-path=output.json ! videoconvert ! gvafpscounter ! autovideosink sync=false"
+  SINK_ELEMENT="vapostproc ! gvawatermark ! gvametaconvert ! gvametapublish file-format=json-lines file-path=output.json ! videoconvert ! gvafpscounter ! autovideosink sync=false"
 elif [[ $OUTPUT == "file" ]]; then
   FILE="$(basename ${INPUT%.*})"
   rm -f "face_detection_and_classification_${FILE}_${DEVICE}.mp4"
@@ -50,7 +62,7 @@ elif [[ $OUTPUT == "file" ]]; then
     echo "Error - VA-API H.264 encoder not found."
     exit
   fi
-  SINK_ELEMENT="gvawatermark ! gvafpscounter ! ${ENCODER} ! avimux name=mux ! filesink location=face_detection_and_classification_${FILE}_${DEVICE}.mp4"
+  SINK_ELEMENT="vapostproc ! gvawatermark ! gvafpscounter ! ${ENCODER} ! avimux name=mux ! filesink location=face_detection_and_classification_${FILE}_${DEVICE}.mp4"
 else
   echo Error wrong value for OUTPUT parameter
   echo Valid values: "display" - render to screen, "fps" - print FPS, "json" - write to output.json, "display-and-json" - render to screen and write to output.json
diff --git a/samples/gstreamer/gst_launch/geti_deployment/geti_sample.sh b/samples/gstreamer/gst_launch/geti_deployment/geti_sample.sh
index 0e1e7828..2c315ad3 100755
--- a/samples/gstreamer/gst_launch/geti_deployment/geti_sample.sh
+++ b/samples/gstreamer/gst_launch/geti_deployment/geti_sample.sh
@@ -16,6 +16,21 @@ else
   echo "MODELS_PATH: $MODELS_PATH"
 fi
 
+# List help message
+if [ "$1" = "--help" ] || [ "$1" = "-h" ]; then
+  echo "Usage: $0 [MODEL_TYPE] [MODEL_PATH] [DEVICE] [PREPROC_BACKEND] [INPUT] [OUTPUT]"
+  echo ""
+  echo "Arguments:"
+  echo "  MODEL_TYPE       - Model type (default: detection). Supported: rotated-detection, instance-segmentation, detection, geti-detection, classification, geti-classification-single, geti-classification-multi, geti-obb, geti-segmentation, anomaly-detection"
+  echo "  MODEL_PATH       - Path to the model XML file relative to MODELS_PATH (default: /home/path/to/your/model.xml)"
+  echo "  DEVICE           - Device (default: CPU). Supported: CPU, GPU, NPU"
+  echo "  PREPROC_BACKEND  - Preprocessing backend (default: ie for CPU, va-surface-sharing for GPU, va for NPU). Supported: ie, opencv, va, va-surface-sharing"
+  echo "  INPUT            - Input source (default: Pexels video URL)"
+  echo "  OUTPUT           - Output type (default: file). Supported: file, display, fps, json, display-and-json"
+  echo ""
+  exit 0
+fi
+
 # Default values for parameters
 # MODEL_TYPE can be rotated-detection, instance-segmentation, detection, geti-detection, classification, geti-obb, geti-segmentation, geti-classification-single, geti-classification-multi,anomaly-detection
 MODEL_TYPE=${1:-detection}
@@ -106,9 +121,9 @@ if [[ $OUTPUT == "file" ]]; then
     echo "Error - VA-API H.264 encoder not found."
     exit
   fi
-  SINK_ELEMENT="gvawatermark${WT_OBB_ELEMENT} ! gvafpscounter ! ${ENCODER} ! h264parse ! mp4mux ! filesink location=geti_${FILE}_${MODEL_TYPE}_${DEVICE}.mp4"
+  SINK_ELEMENT="vapostproc ! gvawatermark${WT_OBB_ELEMENT} ! gvafpscounter ! ${ENCODER} ! h264parse ! mp4mux ! filesink location=geti_${FILE}_${MODEL_TYPE}_${DEVICE}.mp4"
 elif [[ $OUTPUT == "display" ]] || [[ -z $OUTPUT ]]; then
-  SINK_ELEMENT="gvawatermark${WT_OBB_ELEMENT} ! videoconvertscale ! gvafpscounter ! autovideosink sync=false"
+  SINK_ELEMENT="vapostproc ! gvawatermark${WT_OBB_ELEMENT} ! videoconvertscale ! gvafpscounter ! autovideosink sync=false"
 elif [[ $OUTPUT == "fps" ]]; then
   SINK_ELEMENT="gvafpscounter ! fakesink async=false"
 elif [[ $OUTPUT == "json" ]]; then
@@ -116,7 +131,7 @@ elif [[ $OUTPUT == "json" ]]; then
   SINK_ELEMENT="gvametaconvert add-tensor-data=true ! gvametapublish file-format=json-lines file-path=output.json ! fakesink async=false"
 elif [[ $OUTPUT == "display-and-json" ]]; then
   rm -f output.json
-  SINK_ELEMENT="gvawatermark${WT_OBB_ELEMENT}! gvametaconvert add-tensor-data=true ! gvametapublish file-format=json-lines file-path=output.json ! videoconvert ! gvafpscounter ! autovideosink sync=false"
+  SINK_ELEMENT="vapostproc ! gvawatermark${WT_OBB_ELEMENT}! gvametaconvert add-tensor-data=true ! gvametapublish file-format=json-lines file-path=output.json ! videoconvert ! gvafpscounter ! autovideosink sync=false"
 else
   echo Error wrong value for SINK_ELEMENT parameter
   echo Valid values: "file" - render to file, "display" - render to screen, "fps" - print FPS, "json" - write to output.json, "display-and-json" - render to screen and write to output.json
diff --git a/samples/gstreamer/gst_launch/gvaattachroi/gvaattachroi_sample.sh b/samples/gstreamer/gst_launch/gvaattachroi/gvaattachroi_sample.sh
index a8cb760c..373a6c7c 100755
--- a/samples/gstreamer/gst_launch/gvaattachroi/gvaattachroi_sample.sh
+++ b/samples/gstreamer/gst_launch/gvaattachroi/gvaattachroi_sample.sh
@@ -14,6 +14,20 @@ else
   echo "MODELS_PATH: $MODELS_PATH"
 fi
 
+# List help message
+if [ "$1" = "--help" ] || [ "$1" = "-h" ]; then
+  echo "Usage: $0 [INPUT] [DEVICE] [OUTPUT] [ROI_COORDS]"
+  echo ""
+  echo "Arguments:"
+  echo "  INPUT        - Input source (default: Pexels video URL)"
+  echo "  DEVICE       - Device (default: CPU). Supported: CPU, GPU, NPU"
+  echo "  OUTPUT       - Output type (default: file). Supported: file, display, fps, json, display-and-json"
+  echo "  ROI_COORDS   - Specifies pixel absolute coordinates of ROI in form: x_top_left,y_top_left,x_bottom_right,y_bottom_right"
+  echo "                 If not defined, the roi list file ./roi_list.json will be used"
+  echo ""
+  exit 0
+fi
+
 INPUT=${1:-"https://videos.pexels.com/video-files/1192116/1192116-sd_640_360_30fps.mp4"}
 DEVICE=${2:-"CPU"}  # Supported values: CPU, GPU, NPU
 OUTPUT=${3:-"file"} # Supported values: file, display, fps, json, display-and-json
@@ -49,9 +63,9 @@ if [[ "$OUTPUT" == "file" ]]; then
     echo "Error - VA-API H.264 encoder not found."
     exit
   fi
-  SINK_ELEMENT="gvawatermark ! gvafpscounter ! ${ENCODER} ! h264parse ! mp4mux ! filesink location=gvaattachroi_${FILE}_${DEVICE}.mp4"
+  SINK_ELEMENT="vapostproc ! gvawatermark ! gvafpscounter ! ${ENCODER} ! h264parse ! mp4mux ! filesink location=gvaattachroi_${FILE}_${DEVICE}.mp4"
 elif [[ "$OUTPUT" == "display" ]] || [[ -z $OUTPUT ]]; then
-  SINK_ELEMENT="gvawatermark ! videoconvertscale ! gvafpscounter ! autovideosink sync=false"
+  SINK_ELEMENT="vapostproc ! gvawatermark ! videoconvertscale ! gvafpscounter ! autovideosink sync=false"
 elif [[ "$OUTPUT" == "fps" ]]; then
   SINK_ELEMENT="gvafpscounter ! fakesink async=false"
 elif [[ "$OUTPUT" == "json" ]]; then
@@ -59,7 +73,7 @@ elif [[ "$OUTPUT" == "json" ]]; then
   SINK_ELEMENT="gvametaconvert add-tensor-data=true ! gvametapublish file-format=json-lines file-path=output.json ! fakesink async=false"
 elif [[ "$OUTPUT" == "display-and-json" ]]; then
   rm -f output.json
-  SINK_ELEMENT="gvawatermark ! gvametaconvert add-tensor-data=true ! gvametapublish file-format=json-lines file-path=output.json ! videoconvert ! gvafpscounter ! autovideosink sync=false"
+  SINK_ELEMENT="vapostproc ! gvawatermark ! gvametaconvert add-tensor-data=true ! gvametapublish file-format=json-lines file-path=output.json ! videoconvert ! gvafpscounter ! autovideosink sync=false"
 else
   echo Error wrong value for SINK_ELEMENT parameter
   echo Valid values: "file" - render to file, "display" - render to screen, "fps" - print FPS, "json" - write to output.json, "display-and-json" - render to screen and write to output.json
diff --git a/samples/gstreamer/gst_launch/human_pose_estimation/human_pose_estimation.sh b/samples/gstreamer/gst_launch/human_pose_estimation/human_pose_estimation.sh
index 145f6d54..43afb7a2 100755
--- a/samples/gstreamer/gst_launch/human_pose_estimation/human_pose_estimation.sh
+++ b/samples/gstreamer/gst_launch/human_pose_estimation/human_pose_estimation.sh
@@ -13,6 +13,18 @@ else
   echo "MODELS_PATH: $MODELS_PATH"
 fi
 
+# List help message
+if [ "$1" = "--help" ] || [ "$1" = "-h" ]; then
+  echo "Usage: $0 [INPUT] [DEVICE] [OUTPUT]"
+  echo ""
+  echo "Arguments:"
+  echo "  INPUT     - Input source (default: Pexels video URL)"
+  echo "  DEVICE    - Device (default: CPU). Supported: CPU, GPU"
+  echo "  OUTPUT    - Output type (default: display). Supported: file, display, fps, json, display-and-json"
+  echo ""
+  exit 0
+fi
+
 INPUT=${1:-https://github.com/intel-iot-devkit/sample-videos/raw/master/face-demographics-walking.mp4}
 DEVICE=${2:-CPU}
 OUTPUT=${3:-display} # Supported values: display, fps, json, display-and-json
@@ -28,7 +40,7 @@ else
 fi
 
 if [[ $OUTPUT == "display" ]] || [[ -z $OUTPUT ]]; then
-  SINK_ELEMENT="gvawatermark ! videoconvert ! gvafpscounter ! autovideosink sync=false"
+  SINK_ELEMENT="vapostproc ! gvawatermark ! videoconvert ! gvafpscounter ! autovideosink sync=false"
 elif [[ $OUTPUT == "fps" ]]; then
   SINK_ELEMENT="gvafpscounter ! fakesink async=false "
 elif [[ $OUTPUT == "json" ]]; then
@@ -36,7 +48,7 @@ elif [[ $OUTPUT == "json" ]]; then
   SINK_ELEMENT="gvametaconvert add-tensor-data=true ! gvametapublish file-format=json-lines file-path=output.json ! fakesink async=false "
 elif [[ $OUTPUT == "display-and-json" ]]; then
   rm -f output.json
-  SINK_ELEMENT="gvawatermark ! gvametaconvert add-tensor-data=true ! gvametapublish file-format=json-lines file-path=output.json ! videoconvert ! gvafpscounter ! autovideosink sync=false"
+  SINK_ELEMENT="vapostproc ! gvawatermark ! gvametaconvert add-tensor-data=true ! gvametapublish file-format=json-lines file-path=output.json ! videoconvert ! gvafpscounter ! autovideosink sync=false"
 elif [[ $OUTPUT == "file" ]]; then
   FILE="$(basename ${INPUT%.*})"
   rm -f "human_pose_estimation_${FILE}_${DEVICE}.mp4"
@@ -48,7 +60,7 @@ elif [[ $OUTPUT == "file" ]]; then
     echo "Error - VA-API H.264 encoder not found."
     exit
   fi
-  SINK_ELEMENT="gvawatermark ! gvafpscounter ! ${ENCODER} ! avimux name=mux ! filesink location=human_pose_estimation_${FILE}_${DEVICE}.mp4"
+  SINK_ELEMENT="vapostproc ! gvawatermark ! gvafpscounter ! ${ENCODER} ! avimux name=mux ! filesink location=human_pose_estimation_${FILE}_${DEVICE}.mp4"
 else
   echo Error wrong value for OUTPUT parameter
   echo Valid values: "display" - render to screen, "file" - render to file, "fps" - print FPS, "json" - write to output.json, "display-and-json" - render to screen and write to output.json
diff --git a/samples/gstreamer/gst_launch/instance_segmentation/instance_segmentation.sh b/samples/gstreamer/gst_launch/instance_segmentation/instance_segmentation.sh
index 8fafb46a..da4fe9a3 100755
--- a/samples/gstreamer/gst_launch/instance_segmentation/instance_segmentation.sh
+++ b/samples/gstreamer/gst_launch/instance_segmentation/instance_segmentation.sh
@@ -26,6 +26,20 @@ OUTPUT="file"
 BENCHMARK_SINK=""
 OUTPUT_DIRECTORY=""
 
+show_usage() {
+    echo "Usage: $0 [--model MODEL] [--device DEVICE] [--input INPUT] [--output OUTPUT] [--benchmark_sink BENCHMARK_SINK] [--output-directory OUTPUT_DIRECTORY]"
+    echo ""
+    echo "Arguments:"
+    echo "  --model MODEL                     - Model to use (default: mask_rcnn_inception_resnet_v2_atrous_coco). Allowed: ${ALLOWED_MODELS[*]}"
+    echo "  --device DEVICE                   - Device to use (default: CPU). Allowed: ${ALLOWED_DEVICES[*]}"
+    echo "  --input INPUT                     - Input source (default: Pexels video URL)"
+    echo "  --output OUTPUT                   - Output type (default: file). Allowed: ${ALLOWED_OUTPUTS[*]}"
+    echo "  --benchmark_sink BENCHMARK_SINK   - Benchmark sink element (default: empty)"
+    echo "  --output-directory OUTPUT_DIRECTORY - Directory to save output files (default: current directory)"
+    echo "  --help                            - Show this help message"
+    echo ""
+}
+
 # Function to check if an item is in an array
 containsElement () {
   local element match="$1"
@@ -75,6 +89,10 @@ while [[ "$#" -gt 0 ]]; do
             OUTPUT_DIRECTORY="$2"
             shift
             ;;
+        --help)
+            show_usage
+            exit 0
+            ;;
         *)
             echo "Unknown parameter passed: $1"
             exit 1
@@ -150,12 +168,12 @@ if [[ `uname` != "MINGW64"* ]]; then
         exit
     fi
 fi
-sink_elements["file"]="gvawatermark ! gvafpscounter ! ${ENCODER} ! h264parse ! mp4mux ! filesink location=${OUTPUT_DIRECTORY}instance_segmentation_${FILE}_${DEVICE}.mp4"
-sink_elements['display']="gvawatermark ! videoconvertscale ! gvafpscounter ! autovideosink sync=false"
+sink_elements["file"]="vapostproc ! gvawatermark ! gvafpscounter ! ${ENCODER} ! h264parse ! mp4mux ! filesink location=${OUTPUT_DIRECTORY}instance_segmentation_${FILE}_${DEVICE}.mp4"
+sink_elements['display']="vapostproc ! gvawatermark ! videoconvertscale ! gvafpscounter ! autovideosink sync=false"
 sink_elements['fps']="gvafpscounter ! fakesink sync=false"
 sink_elements['json']="gvametaconvert add-tensor-data=true ! gvametapublish file-format=json-lines file-path=${OUTPUT_DIRECTORY}output.json ! fakesink sync=false"
-sink_elements['display-and-json']="gvawatermark ! gvametaconvert add-tensor-data=true ! gvametapublish file-format=json-lines file-path=${OUTPUT_DIRECTORY}instance_segmentation_${FILE}_${DEVICE}.json ! videoconvert ! gvafpscounter ! autovideosink sync=false"
-sink_elements["jpeg"]="gvawatermark ! jpegenc ! multifilesink location=${OUTPUT_DIRECTORY}instance_segmentation_${FILE}_${DEVICE}_%05d.jpeg"
+sink_elements['display-and-json']="vapostproc ! gvawatermark ! gvametaconvert add-tensor-data=true ! gvametapublish file-format=json-lines file-path=${OUTPUT_DIRECTORY}instance_segmentation_${FILE}_${DEVICE}.json ! videoconvert ! gvafpscounter ! autovideosink sync=false"
+sink_elements["jpeg"]="vapostproc ! gvawatermark ! jpegenc ! multifilesink location=${OUTPUT_DIRECTORY}instance_segmentation_${FILE}_${DEVICE}_%05d.jpeg"
 SINK_ELEMENT=${sink_elements[$OUTPUT]}
 
 # Construct the GStreamer pipeline
diff --git a/samples/gstreamer/gst_launch/license_plate_recognition/license_plate_recognition.sh b/samples/gstreamer/gst_launch/license_plate_recognition/license_plate_recognition.sh
index c8ad9230..29eb75d6 100755
--- a/samples/gstreamer/gst_launch/license_plate_recognition/license_plate_recognition.sh
+++ b/samples/gstreamer/gst_launch/license_plate_recognition/license_plate_recognition.sh
@@ -17,6 +17,18 @@ else
   echo "MODELS_PATH: $MODELS_PATH"
 fi
 
+# List help message
+if [ "$1" = "--help" ] || [ "$1" = "-h" ]; then
+  echo "Usage: $0 [INPUT] [DEVICE] [OUTPUT]"
+  echo ""
+  echo "Arguments:"
+  echo "  INPUT     - Input source (default: Pexels video URL)"
+  echo "  DEVICE    - Device (default: GPU). Supported: CPU, GPU"
+  echo "  OUTPUT    - Output type (default: fps). Supported: display, display-async, fps, json, display-and-json, file"
+  echo ""
+  exit 0
+fi
+
 # Command-line parameters
 INPUT=${1:-https://github.com/open-edge-platform/edge-ai-resources/raw/main/videos/ParkingVideo.mp4}
 DEVICE=${2:-GPU}     # Device for decode and inference in OpenVINO(TM) format, examples: AUTO, CPU, GPU, GPU.0
@@ -65,9 +77,9 @@ else
 fi
 
 if [[ $OUTPUT == "display" ]]; then
-  SINK_ELEMENT="gvawatermark ! videoconvert ! gvafpscounter ! autovideosink"
+  SINK_ELEMENT="vapostproc ! gvawatermark ! videoconvert ! gvafpscounter ! autovideosink"
 elif [[ $OUTPUT == "display-async" ]]; then
-  SINK_ELEMENT="gvawatermark ! videoconvert ! gvafpscounter ! autovideosink sync=false"
+  SINK_ELEMENT="vapostproc ! gvawatermark ! videoconvert ! gvafpscounter ! autovideosink sync=false"
 elif [[ $OUTPUT == "fps" ]]; then
   SINK_ELEMENT="gvafpscounter ! fakesink async=false "
 elif [[ $OUTPUT == "json" ]]; then
@@ -75,7 +87,7 @@ elif [[ $OUTPUT == "json" ]]; then
   SINK_ELEMENT="gvametaconvert ! gvametapublish file-format=json-lines file-path=output.json ! fakesink async=false"
 elif [[ $OUTPUT == "display-and-json" ]]; then
   rm -f output.json
-  SINK_ELEMENT="gvawatermark ! gvametaconvert ! gvametapublish file-format=json-lines file-path=output.json ! videoconvert ! gvafpscounter ! autovideosink sync=false"
+  SINK_ELEMENT="vapostproc ! gvawatermark ! gvametaconvert ! gvametapublish file-format=json-lines file-path=output.json ! videoconvert ! gvafpscounter ! autovideosink sync=false"
 elif [[ $OUTPUT == "file" ]]; then
   FILE="$(basename ${INPUT%.*})"
   rm -f "lpr_${FILE}_${DEVICE}.mp4"
@@ -87,7 +99,7 @@ elif [[ $OUTPUT == "file" ]]; then
     echo "Error - VA-API H.264 encoder not found."
     exit
   fi
-  SINK_ELEMENT="gvawatermark ! gvafpscounter ! ${ENCODER} ! h264parse ! mp4mux ! filesink location=lpr_${FILE}_${DEVICE}.mp4"
+  SINK_ELEMENT="vapostproc ! gvawatermark ! gvafpscounter ! ${ENCODER} ! h264parse ! mp4mux ! filesink location=lpr_${FILE}_${DEVICE}.mp4"
 else
   echo Error wrong value for OUTPUT parameter
   echo Valid values: "display" - render to screen, "fps" - print FPS, "json" - write to output.json, "display-and-json" - render to screen and write to output.json
diff --git a/samples/gstreamer/gst_launch/lvm/generate_frame_embeddings.sh b/samples/gstreamer/gst_launch/lvm/generate_frame_embeddings.sh
index cca4b6ad..44ead52e 100755
--- a/samples/gstreamer/gst_launch/lvm/generate_frame_embeddings.sh
+++ b/samples/gstreamer/gst_launch/lvm/generate_frame_embeddings.sh
@@ -29,6 +29,20 @@ SUPPORTED_MODELS=(
   "clip-vit-base-patch32"
 )
 
+# Print help message
+if [ "$1" = "--help" ] || [ "$1" = "-h" ]; then
+    echo "Usage: $0 [SOURCE_FILE] [DEVICE] [OUTPUT] [MODEL] [PREPROCESSING_BACKEND]"
+    echo ""
+    echo "Arguments:"
+    echo "  SOURCE_FILE            - Input source (default: Pexels video URL)"
+    echo "  DEVICE                 - Device (default: CPU). Supported: CPU, GPU"
+    echo "  OUTPUT                 - Output type (default: json). Supported: json, fps"
+    echo "  MODEL                  - Model name (default: clip-vit-large-patch14). Supported: ${SUPPORTED_MODELS[*]}"
+    echo "  PREPROCESSING_BACKEND  - Preprocessing backend (default: opencv). Supported: ie, opencv, va, va-surface-sharing"
+    echo ""
+    exit 0
+fi
+
 # Arguments
 SOURCE_FILE=${1:-$DEFAULT_SOURCE}
 DEVICE=${2:-$DEFAULT_DEVICE}
diff --git a/samples/gstreamer/gst_launch/metapublish/metapublish.sh b/samples/gstreamer/gst_launch/metapublish/metapublish.sh
index 6f008fef..4a33d684 100755
--- a/samples/gstreamer/gst_launch/metapublish/metapublish.sh
+++ b/samples/gstreamer/gst_launch/metapublish/metapublish.sh
@@ -14,6 +14,20 @@ else
   echo "MODELS_PATH: $MODELS_PATH"
 fi
 
+# List help message
+if [ "$1" = "--help" ] || [ "$1" = "-h" ]; then
+  echo "Usage: $0 [INPUT] [METHOD] [OUTPUT] [FORMAT] [TOPIC]"
+  echo ""
+  echo "Arguments:"
+  echo "  INPUT     - Input source (default: Pexels video URL)"
+  echo "  METHOD    - Metapublish method (default: file). Supported: file, kafka, mqtt"
+  echo "  OUTPUT    - Output destination (default: stdout for file, localhost:9092 for kafka, localhost:1883 for mqtt)"
+  echo "  FORMAT    - Output format (default: json for file, json-lines for kafka and mqtt). Supported: json, json-lines"
+  echo "  TOPIC     - Topic name (default: dlstreamer). Required for kafka and mqtt"
+  echo ""
+  exit 0
+fi
+
 INPUT=${1:-https://github.com/intel-iot-devkit/sample-videos/raw/master/head-pose-face-detection-female-and-male.mp4}
 METHOD=${2:-file} # Accepts: file, kafka, mqtt
 OUTPUT=${3} # Path to file if method==file, host and port of message broker if method==kafka/mqtt. Default: "stdout" for file, "localhost:9092" for kafka, and "localhost:1883" for mqtt
diff --git a/samples/gstreamer/gst_launch/multi_stream/multi_stream_sample.sh b/samples/gstreamer/gst_launch/multi_stream/multi_stream_sample.sh
index 185f03d6..940e202d 100755
--- a/samples/gstreamer/gst_launch/multi_stream/multi_stream_sample.sh
+++ b/samples/gstreamer/gst_launch/multi_stream/multi_stream_sample.sh
@@ -17,13 +17,28 @@ else
   echo "MODELS_PATH: $MODELS_PATH"
 fi
 
+# List help message
+if [ "$1" = "--help" ] || [ "$1" = "-h" ]; then
+  echo "Usage: $0 [INPUT] [DEVICE_STREAM_12] [DEVICE_STREAM_34] [MODEL_1] [MODEL_2] [OUTPUT]"
+  echo ""
+  echo "Arguments:"
+  echo "  INPUT             - Input source (default: Pexels video URL)"
+  echo "  DEVICE_STREAM_12  - Device for stream 1 & 2 (default: NPU). Supported: CPU, GPU, NPU"
+  echo "  DEVICE_STREAM_34  - Device for stream 3 & 4 (default: GPU). Supported: CPU, GPU, NPU"
+  echo "  MODEL_1          - Model for stream 1 & 2 (default: yolov8s). Supported: yolox-tiny, yolox_s, yolov7, yolov8s, yolov9c"
+  echo "  MODEL_2          - Model for stream 3 & 4 (default: yolov8s). Supported: yolox-tiny, yolox_s, yolov7, yolov8s, yolov9c"
+  echo "  OUTPUT           - Output type (default: file). Supported: file, json"
+  echo ""
+  exit 0
+fi
+
 INPUT=${1:-"https://videos.pexels.com/video-files/1192116/1192116-sd_640_360_30fps.mp4"}
 DEVICE_STREAM_12=${2:-"NPU"}    # Supported values: CPU, GPU, NPU
 DEVICE_STREAM_34=${3:-"GPU"}    # Supported values: CPU, GPU, NPU
 MODEL_1=${4:-"yolov8s"}         # Supported values: yolox-tiny, yolox_s, yolov7, yolov8s, yolov9c
 MODEL_2=${5:-"yolov8s"}         # Supported values: yolox-tiny, yolox_s, yolov7, yolov8s, yolov9c
 OUTPUT=${6:-"file"}             # Supported values: file, json
-GSTVA=${7:-"VA"}                # Supported values: VA, VAAPI
+GSTVA="VA"
 
 cd "$(dirname "$0")"
 
@@ -91,13 +106,6 @@ if [ ! -f ${INPUT} ]; then
 fi
 SOURCE_ELEMENT="filesrc location=${INPUT}"
 
-### GSTVA , OUTPUT ##################################################################
-if [[ "$GSTVA" != "VA" ]] && [[ "$GSTVA" != "VAAPI" ]]; then 
-  echo "Error: Wrong value for GSTVA parameter."
-  echo "Valid values: VA, VAAPI"
-  exit
-fi
-
 ### STREAM 1 and 2 ###
 # CPU device
 DECODE_ELEMENT_STR12="decodebin3"
@@ -114,16 +122,6 @@ if [[ "$GSTVA" == "VA" ]]; then
     PREPROC_BACKEND_STR12="${PREPROC_BACKEND_STR12} nireq=4 model-instance-id=inf0"
   fi
 fi
-## GST-VAAPI ##
-if [[ "$GSTVA" == "VAAPI" ]]; then 
-  if [[ "$DEVICE_STREAM_12" == "GPU" ]]; then
-    PREPROC_BACKEND_STR12="vaapi-surface-sharing"
-  fi
-  if [[ "$DEVICE_STREAM_12" == "GPU" ]] || [[ "$DEVICE_STREAM_12" == "NPU" ]]; then
-    DECODE_ELEMENT_STR12+=" ! vaapipostproc ! video/x-raw(memory:VASurface)"
-    PREPROC_BACKEND_STR12="${PREPROC_BACKEND_STR12} nireq=4 model-instance-id=inf0"
-  fi
-fi
 
 ### STREAM 3 and 4 ###
 # CPU device
@@ -141,16 +139,6 @@ if [[ "$GSTVA" == "VA" ]]; then
     PREPROC_BACKEND_STR34="${PREPROC_BACKEND_STR34} nireq=4 model-instance-id=inf1"
   fi
 fi
-## GST-VAAPI ##
-if [[ "$GSTVA" == "VAAPI" ]]; then 
-  if [[ "$DEVICE_STREAM_34" == "GPU" ]]; then
-    PREPROC_BACKEND_STR34="vaapi-surface-sharing"
-  fi
-  if [[ "$DEVICE_STREAM_34" == "GPU" ]] || [[ "$DEVICE_STREAM_34" == "NPU" ]]; then
-    DECODE_ELEMENT_STR34+=" ! vaapipostproc ! video/x-raw(memory:VASurface)"
-    PREPROC_BACKEND_STR34="${PREPROC_BACKEND_STR34} nireq=4 model-instance-id=inf1"
-  fi
-fi
 
 ## Output ##
 if [[ "$GSTVA" == "VA" ]]; then
@@ -162,10 +150,7 @@ if [[ "$GSTVA" == "VA" ]]; then
     echo "Error - VA-API H.264 encoder not found."
     exit
   fi
-  SINK_ELEMENT_BASE="gvawatermark ! gvafpscounter ! ${ENCODER} ! h264parse ! mp4mux ! "
-fi
-if [[ "$GSTVA" == "VAAPI" ]]; then 
-  SINK_ELEMENT_BASE="gvawatermark ! gvafpscounter ! vaapih264enc ! h264parse ! mp4mux ! "
+  SINK_ELEMENT_BASE="vapostproc ! gvawatermark ! gvafpscounter ! ${ENCODER} ! h264parse ! mp4mux ! "
 fi
 
 if [[ "$OUTPUT" == "file" ]]; then
diff --git a/samples/gstreamer/gst_launch/vehicle_pedestrian_tracking/vehicle_pedestrian_tracking.sh b/samples/gstreamer/gst_launch/vehicle_pedestrian_tracking/vehicle_pedestrian_tracking.sh
index 52b6f4b8..e416882a 100755
--- a/samples/gstreamer/gst_launch/vehicle_pedestrian_tracking/vehicle_pedestrian_tracking.sh
+++ b/samples/gstreamer/gst_launch/vehicle_pedestrian_tracking/vehicle_pedestrian_tracking.sh
@@ -14,6 +14,20 @@ else
   echo "MODELS_PATH: $MODELS_PATH"
 fi
 
+# Print help message
+if [ "$1" = "--help" ] || [ "$1" = "-h" ]; then
+  echo "Usage: $0 [INPUT] [DETECTION_INTERVAL] [DEVICE] [OUTPUT] [TRACKING_TYPE]"
+  echo ""
+  echo "Arguments:"
+  echo "  INPUT               - Input source (default: Pexels video URL)"
+  echo "  DETECTION_INTERVAL  - Object detection interval (default: 3). 1 means detection every frame, 2 means detection every second frame, etc."
+  echo "  DEVICE              - Device for decode and inference in OpenVINO(TM) format (default: AUTO). Supported: AUTO, CPU, GPU, GPU.0"
+  echo "  OUTPUT              - Output type (default: display-async). Supported: display, display-async, fps, json, display-and-json, file"
+  echo "  TRACKING_TYPE       - Object tracking type (default: short-term-imageless). Supported: short-term-imageless, zero-term, zero-term-imageless"
+  echo ""
+  exit 0
+fi
+
 # Command-line parameters
 INPUT=${1:-https://github.com/intel-iot-devkit/sample-videos/raw/master/person-bicycle-car-detection.mp4} # Input file or URL
 DETECTION_INTERVAL=${2:-3}     # Object detection interval: 1 means detection every frame, 2 means detection every second frame, etc.
@@ -46,9 +60,9 @@ else
 fi
 
 if [[ $OUTPUT == "display" ]]; then
-  SINK_ELEMENT="gvawatermark ! videoconvert ! gvafpscounter ! autovideosink"
+  SINK_ELEMENT="vapostproc ! gvawatermark ! videoconvert ! gvafpscounter ! autovideosink"
 elif [[ $OUTPUT == "display-async" ]]; then
-  SINK_ELEMENT="gvawatermark ! videoconvert ! gvafpscounter ! autovideosink sync=false"
+  SINK_ELEMENT="vapostproc ! gvawatermark ! videoconvert ! gvafpscounter ! autovideosink sync=false"
 elif [[ $OUTPUT == "fps" ]]; then
   SINK_ELEMENT="gvafpscounter ! fakesink async=false "
 elif [[ $OUTPUT == "json" ]]; then
@@ -56,7 +70,7 @@ elif [[ $OUTPUT == "json" ]]; then
   SINK_ELEMENT="gvametaconvert ! gvametapublish file-format=json-lines file-path=output.json ! fakesink async=false"
 elif [[ $OUTPUT == "display-and-json" ]]; then
   rm -f output.json
-  SINK_ELEMENT="gvawatermark ! gvametaconvert ! gvametapublish file-format=json-lines file-path=output.json ! videoconvert ! gvafpscounter ! autovideosink sync=false"
+  SINK_ELEMENT="vapostproc ! gvawatermark ! gvametaconvert ! gvametapublish file-format=json-lines file-path=output.json ! videoconvert ! gvafpscounter ! autovideosink sync=false"
 elif [[ $OUTPUT == "file" ]]; then
   FILE="$(basename ${INPUT%.*})"
   rm -f "vehicle_pedestrian_tracking_${FILE}_${DEVICE}.mp4"
@@ -68,7 +82,7 @@ elif [[ $OUTPUT == "file" ]]; then
     echo "Error - VA-API H.264 encoder not found."
     exit
   fi
-  SINK_ELEMENT="gvawatermark ! gvafpscounter ! ${ENCODER} ! avimux name=mux ! filesink location=vehicle_pedestrian_tracking_${FILE}_${DEVICE}.mp4"
+  SINK_ELEMENT="vapostproc ! gvawatermark ! gvafpscounter ! ${ENCODER} ! avimux name=mux ! filesink location=vehicle_pedestrian_tracking_${FILE}_${DEVICE}.mp4"
 else
   echo Error wrong value for OUTPUT parameter
   echo Valid values: "display" - render to screen, "fps" - print FPS, "json" - write to output.json, "display-and-json" - render to screen and write to output.json