: Normalize all points relative to a "root" point (e.g., the base of the neck or center of the face) to make the features invariant to where the person is standing in the frame.
: Detailed mesh points to capture "non-manual markers" (facial expressions essential for ASL grammar). latasha1_02mp4
: ASL videos are often recorded at 30 or 60 FPS. For model efficiency, researchers often downsample or use fixed-length sequences (e.g., taking 32 or 64 frames per clip). : Normalize all points relative to a "root" point (e