Counting in High-Density Crowd Videos Edgar Lopez Mentor: Dr. Haroon Idrees

Video Annotations Matlab script to automatically annotate frames by tracking the points of the manually annotated frames. Method Compute forward tracks. Compute backward tracks. Match forward and backward tracks. Compute average tracks.

Results Every 5th frame was manually annotated.

Results Every 30th frame was manually annotated.

Results Every 50th frame was manually annotated.

Challenges People exit and enter the scene. Some points that may be annotated in one frame are not annotated in the next annotated frame. Tracker loses several points between frames. Experiment with different parameters. Alternatively, try with a different tracker. Some tracks are so close to each other that matching is done wrong. The greater the number of frames between manually annotated frames, the larger the error. Add a weighting system to tracks.