MediaPipeTasksVision Framework Reference

MPPGestureRecognizerResult

@interface MPPGestureRecognizerResult : MPPTaskResult

Represents the gesture recognition results generated by GestureRecognizer.

• landmarks

  Hand landmarks of detected hands.

  Declaration

  Objective-C

  @property (nonatomic, readonly) NSArray<NSArray<MPPNormalizedLandmark *> *> *_Nonnull landmarks;

• worldLandmarks

  Hand landmarks in world coordniates of detected hands.

  Declaration

  Objective-C

  @property (nonatomic, readonly) NSArray<NSArray<MPPLandmark *> *> *_Nonnull worldLandmarks;

• handedness

  Handedness of detected hands.

  Declaration

  Objective-C

  @property (nonatomic, readonly) NSArray<NSArray<MPPCategory *> *> *_Nonnull handedness;

• gestures

  Recognized hand gestures of detected hands. Note that the index of the gesture is always -1, because the raw indices from multiple gesture classifiers cannot consolidate to a meaningful index.

  Declaration

  Objective-C

  @property (nonatomic, readonly) NSArray<NSArray<MPPCategory *> *> *_Nonnull gestures;

• -initWithGestures:handedness:landmarks:worldLandmarks:timestampInMilliseconds:

  Initializes a new GestureRecognizerResult with the given landmarks, world landmarks, handedness, gestures and timestamp (in milliseconds).

  Declaration

  Objective-C

  - (nonnull instancetype)
             initWithGestures:
                 (nonnull NSArray<NSArray<MPPCategory *> *> *)gestures
                   handedness:
                       (nonnull NSArray<NSArray<MPPCategory *> *> *)handedness
                    landmarks:
                        (nonnull NSArray<NSArray<MPPNormalizedLandmark *> *> *)
                            landmarks
               worldLandmarks:
                   (nonnull NSArray<NSArray<MPPLandmark *> *> *)worldLandmarks
      timestampInMilliseconds:(NSInteger)timestampInMilliseconds;

  Parameters

  landmarks	The hand landmarks of detected hands.
  worldLandmarks	The hand landmarks in world coordniates of detected hands.
  handedness	The recognized hand gestures of detected hands.
  handedness	The recognized hand gestures of detected hands.
  timestampInMilliseconds	The timestamp for this result.

  Return Value

  An instance of GestureRecognizerResult initialized with the given landmarks, world landmarks, handedness and gestures.