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Automatic video activity detection using compressed domain motion trajectories for H.264 videos.
Haowei Liu
Ming-Ting Sun
Ruei-Cheng Wu
Shiaw-Shian Yu
Published in:
J. Vis. Commun. Image Represent. (2011)
Keyphrases
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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