  We introduce the problem of detecting a group of students from classroom
videos. The problem requires the detection of students from different angles
and the separation of the group from other groups in long videos (one to one
and a half hours). We use multiple image representations to solve the problem.
We use FM components to separate each group from background groups, AM-FM
components for detecting the back-of-the-head, and YOLO for face detection. We
use classroom videos from four different groups to validate our approach. Our
use of multiple representations is shown to be significantly more accurate than
the use of YOLO alone.

Image and Video Processing