Method for detecting talking heads in a compressed video

Details Method for detecting talking heads in a compressed video Method for detecting talking heads in a compressed video

2005-01-25

2005-01-25

Kelley, Chris (Department: 2613)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240080

Reexamination Certificate

active

06847680

ABSTRACT:
A method identifies a talking head or principal cast in a compressed video by first segmenting the video into shots. Motion activity descriptors are extracted from each of the shots, and combined into a shot motion activity descriptor. A distance between the shot motion activity descriptor and a template motion activity descriptor is measured. The template motion activity descriptor is obtained from a training video. If the measured distance is less than a predetermined threshold, then the shot is identified as including a talking head.

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