Patent №
US 4,724,488
Granted
1988-02-09
Filed 1984
Owner
AGFA-GEVAERT, A NAAMLOZE VENNOOTSCHAP OF BELGIUM
Lab
—
AI components
1
vision
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
06677683
A signal-processing device for transforming a digital image signal, that has been obtained by sampling and digitization of a video signal obtained by line-wise scanning of an original, to a binary image signal wherein zero points of the two-dimensional second difference of the digital video signal are determined in order to detect contrast transitions in the original. Unwanted noise components in the video signal are eliminated by masking the second-difference signal.
AI classification
Ownership
AGFA-GEVAERT, A NAAMLOZE VENNOOTSCHAP OF BELGIUM
assignment · 47820893
Assignors
VAN DAELE, JEAN A., PANDELAERS, PATRICK M.
On an employer assignment, the assignors are typically the inventors.