extractKeypoints(targetFrameRate:)
Extracts key points from video files if necessary.
Declaration
func extractKeypoints(targetFrameRate: Double = MLHandActionClassifier.__Defaults.targetFrameRate) throws -> DataFrameParameters
- targetFrameRate:
The number of frames per second the method uses to extract body landmarks from the data source.
Return Value
A data frame that contains a column for hand joint locations and a column of hand action annotations.
Discussion
If the data source already contains keypoints, this method just renames the data frame columns to the defaults.
See Also
Extracting key points
MLActionClassifier.DataSource.labeledKeypointsDataFrame(_:sessionIdColumn:labelColumn:featureColumn:)MLActionClassifier.DataSource.labeledKeypointsData(table:sessionIdColumn:labelColumn:featureColumn:)MLActionClassifier.DataSource.labeledVideoDataFrame(_:videoColumn:labelColumn:startTimeColumn:endTimeColumn:)