Automatic video activity detection using compressed domain motion trajectories for H.264 videos.
Haowei LiuMing-Ting SunRuei-Cheng WuShiaw-Shian YuPublished in: J. Vis. Commun. Image Represent. (2011)
Keyphrases
- motion trajectories
- compressed domain
- activity detection
- video data
- video analysis
- video sequences
- motion vectors
- inter frame
- video database
- sequence matching
- video objects
- image sequences
- video frames
- spatio temporal
- video content
- video coding
- human motion
- video clips
- motion estimation
- motion patterns
- key frames
- video streams
- video retrieval
- bitstream
- video indexing
- macroblock
- raw data
- moving objects
- space time
- body parts
- foreground objects
- coding scheme
- multimedia