Fig. 7.
Shown here is an example of the detection of a circular motion. (a) The motion trajectory of an ASL sign. (b) The 2D projection of the sign trajectory. Shown in red is the detected circular motion. (c) The Hough transform result.
Shown here is an example of the detection of a circular motion. (a) The motion trajectory of an ASL sign. (b) The 2D projection of the sign trajectory. Shown in red is the detected circular motion. (c) The Hough transform result.