Patent classifications
G
PHYSICS
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G06
COMPUTING OR CALCULATING; COUNTING
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G06V
IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
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20/00
Scenes; Scene-specific elements
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G06V20/50
Context or environment of the image
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G06V20/52
Surveillance or monitoring of activities, e.g. for recognising suspicious objects
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G06V20/53
Recognition of crowd images, e.g. recognition of crowd congestion
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