Action Recognition by Matching Clustered Trajectories of Motion Vectors.
Michalis VrigkasVasileios KaravasilisChristophoros NikouIoannis A. KakadiarisPublished in: VISAPP (1) (2013)
Keyphrases
- action recognition
- motion vectors
- view invariant
- motion estimation
- motion features
- motion compensation
- video sequences
- video coding
- human actions
- bit rate
- activity recognition
- motion field
- computer vision
- block matching
- bag of words
- spatial temporal
- reference frame
- video data
- compressed domain
- motion estimation algorithm
- matching algorithm
- action classification
- body parts
- computational complexity
- recognition of human actions
- human activities
- matching process
- keypoints
- recognizing human actions
- recognizing actions
- moving objects
- optical flow
- space time interest points
- machine learning
- image data
- spatio temporal