G
PHYSICS
G06
COMPUTING OR CALCULATING; COUNTING
G06V
IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
10/00
Arrangements for image or video recognition or understanding
G06V10/40
Extraction of image or video features
G06V10/50
by performing operations within image blocks; by using histograms, e.g. histogram of oriented gradients [HoG]; by summing image-intensity values; Projection analysis