Action Recognition in Video Using Sparse Coding and Relative Features.

Analí Alfaro Domingo Mery Alvaro Soto

Published in: CoRR (2016)

Keyphrases

action recognition
sparse coding
human actions
action classification
space time interest points
action detection
dictionary learning
sparse representation
mid level
bag of features
feature space

recognizing human actions
bag of words
computer vision
human detection
natural images
image classification
human activities
motion history images
prior knowledge
key frames

global features
linear combination
generative model
video sequences
image features
video data
visual words
unsupervised learning
co occurrence
feature vectors

spatio temporal
training data
keypoints
human motion
supervised learning
active learning
image retrieval
feature extraction
image sequences
image processing