DIGITAL COLOR CORRECTION SYSTEM AND METHOD

Patent №

US 5,255,083

Granted

1993-10-19

Filed 1991

Owner

SONY CORPORATION OF AMERICA

+1 more

Lab

AI components

1

vision

Assignment

Recorded

Dataset

AIPD

2023_r1 edition

Application

07710704

A digital color correction system and method provide for color correction in a film-to-video signal conversion system. Film color correction is done by correcting incoming digitized film color signals (e.g. red, green and blue) according to film color correction parameters which represent film characteristics, such as film speed, gamma, and minimum and maximum film dye density. The film color correction parameters are used to sensitometrically convert the film color signals to video color signals according to a sensitometric film model, such as the Hurter-Driffield ("HD") characteristic curve. Video color correction is then performed upon the corrected film color signals according to video color correction parameters which represent video signal characteristics, such as hue and saturation, as well as a video color standard model, such as SMPTE 240M. Alternatively, separate signals representing the film or video color correction parameters can be encoded as separate data into the corrected or uncorrected color signals. This color correction or color correction parameter encoding can be done on a field-by-field, frame-by-frame or scene-by-scene basis, so that each resulting video field, frame or scene, respectively, is appropriately color corrected or contains its own specific color correction information.

VisionH04N 1/6094H04N 1/407H04N 1/64H04N 5/253H04N 5/262H04N 9/64H04N 9/11

AI classification

Vision0.65
AI hardware0.00
Machine learning0.00
Natural language0.00
Evolutionary computation0.00
Speech0.00
Planning0.00
Knowledge representation0.00

Ownership

SONY CORPORATION OF AMERICA

assignment · 57370216

SONY ELECTRONICS INC.

namechg · 65950466

Assignors

CAPITANT, PATRICE J., PERRY, VINSON R., COLLIER, DAVID C., CARLUCCI, JOHN

On an employer assignment, the assignors are typically the inventors.

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