Patent №
US 6,385,342
Granted
2002-05-07
Filed 1998
Owner
XEROX CORPORATION
Lab
—
AI components
2
vision · hardware
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
09191245
A method detects if an image is compressed. The method determines a block grid within the image and establishes blocks from the determined grid. The method then computes differences between samples inside the established blocks and differences between samples across the established blocks. The method determines that the image is compressed based on characteristics derived from statistics of the computed differences.
VisionAI hardwareH04N 19/119H04N 1/00002H04N 1/00005H04N 1/00037H04N 1/00047H04N 1/0005H04N 1/00076H04N 1/00082+5 more
AI classification
Vision1.00
AI hardware0.97
Knowledge representation0.19
Machine learning0.01
Planning0.00
Evolutionary computation0.00
Natural language0.00
Speech0.00
Ownership
XEROX CORPORATION
assignment · 95890362
Assignors
DE QUEIROZ, RICARDO L.
On an employer assignment, the assignors are typically the inventors.
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