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Behaviour detection in crowded classroom scenes via enhancing features robust to scale and perspective variations.
Mingyu Liu
Fanman Meng
Qingbo Wu
Linfeng Xu
Qianghua Liao
Published in:
IET Image Process. (2021)
Keyphrases
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false positives
image features
object detection
learning environment
detection method
rotational invariant
support vector machine classifier
co occurrence
learning process
scale space
face detection
keypoints
student learning
feature descriptors
feature detection
middle school
feature vectors
feature extraction