mp.tasks.vision.PoseLandmarker

Class that performs pose landmarks detection on images.

graph_config
The mediapipe vision task graph config proto.
running_mode
The running mode of the mediapipe vision task.
packet_callback
The optional packet callback for getting results asynchronously in the live stream mode.

ValueError
The packet callback is not properly set based on the task's running mode.

Methods

close

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Shuts down the mediapipe vision task instance.

Raises

RuntimeError
If the mediapipe vision task failed to close.

convert_to_normalized_rect

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Converts from ImageProcessingOptions to NormalizedRect, performing sanity checks on-the-fly.

If the input ImageProcessingOptions is not present, returns a default NormalizedRect covering the whole image with rotation set to 0. If 'roi_allowed' is false, an error will be returned if the input ImageProcessingOptions has its 'region_of_interest' field set.

Args

options
Options for image processing.
image
The image to process.
roi_allowed
Indicates if the region_of_interest field is allowed to be set. By default, it's set to True.

Returns
A normalized rect proto that represents the image processing options.

create_from_model_path

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Creates a PoseLandmarker object from a model bundle file and the default PoseLandmarkerOptions .

Note that the created PoseLandmarker instance is in image mode, for detecting pose landmarks on single image inputs.

Args

model_path
Path to the model.

Returns
PoseLandmarker object that's created from the model file and the default PoseLandmarkerOptions .

Raises

ValueError
If failed to create PoseLandmarker object from the provided file such as invalid file path.
RuntimeError
If other types of error occurred.

create_from_options

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Creates the PoseLandmarker object from pose landmarker options.

Args

options
Options for the pose landmarker task.

Returns
PoseLandmarker object that's created from options .

Raises

ValueError
If failed to create PoseLandmarker object from PoseLandmarkerOptions such as missing the model.
RuntimeError
If other types of error occurred.

detect

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Performs pose landmarks detection on the given image.

Only use this method when the PoseLandmarker is created with the image running mode.

Args

image
MediaPipe Image.
image_processing_options
Options for image processing.

Returns
The pose landmarker detection results.

Raises

ValueError
If any of the input arguments is invalid.
RuntimeError
If pose landmarker detection failed to run.

detect_async

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Sends live image data to perform pose landmarks detection.

The results will be available via the "result_callback" provided in the PoseLandmarkerOptions. Only use this method when the PoseLandmarker is created with the live stream running mode.

Only use this method when the PoseLandmarker is created with the live stream running mode. The input timestamps should be monotonically increasing for adjacent calls of this method. This method will return immediately after the input image is accepted. The results will be available via the result_callback provided in the PoseLandmarkerOptions . The detect_async method is designed to process live stream data such as camera input. To lower the overall latency, pose landmarker may drop the input images if needed. In other words, it's not guaranteed to have output per input image.

The result_callback provides:

  • The pose landmarker detection results.
  • The input image that the pose landmarker runs on.
  • The input timestamp in milliseconds.

Args

image
MediaPipe Image.
timestamp_ms
The timestamp of the input image in milliseconds.
image_processing_options
Options for image processing.

Raises

ValueError
If the current input timestamp is smaller than what the pose landmarker has already processed.

detect_for_video

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Performs pose landmarks detection on the provided video frame.

Only use this method when the PoseLandmarker is created with the video running mode.

Only use this method when the PoseLandmarker is created with the video running mode. It's required to provide the video frame's timestamp (in milliseconds) along with the video frame. The input timestamps should be monotonically increasing for adjacent calls of this method.

Args

image
MediaPipe Image.
timestamp_ms
The timestamp of the input video frame in milliseconds.
image_processing_options
Options for image processing.

Returns
The pose landmarker detection results.

Raises

ValueError
If any of the input arguments is invalid.
RuntimeError
If pose landmarker detection failed to run.

get_graph_config

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Returns the canonicalized CalculatorGraphConfig of the underlying graph.

__enter__

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Return self upon entering the runtime context.

__exit__

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Shuts down the mediapipe vision task instance on exit of the context manager.

Raises

RuntimeError
If the mediapipe vision task failed to close.

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