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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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10/00
Arrangements for image or video recognition or understanding
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G06V10/20
Image preprocessing
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G06V10/24
Aligning, centring, orientation detection or correction of the image
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G06V10/242
by image rotation, e.g. by 90 degrees
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