Patent №
US 6,160,846
Granted
2000-12-12
Filed 1996
Owner
DAVID SARNOFF RESEARCH CENTER, INC.
+1 more
Lab
—
AI components
1
vision
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
08738228
A method and apparatus for selecting a quantizer scale for each macroblock to maintain the overall quality of the video image while optimizing the coding rate. A quantizer scale is selected for each macroblock such that target bit rate for the picture is achieved while an optimal quantization scale ratio is maintained for successive macroblocks to produce a uniform visual quality over the entire picture. One embodiment applies the method to the frame level while another embodiment applies the method in conjunction with a wavelet transform.
AI classification
Ownership
DAVID SARNOFF RESEARCH CENTER, INC.
assignment · 83770657
SHARP CORPORATION
assignment · 83770657
Assignors
CHIANG, TIHAO, SUN, HUIFANG, KWOK, WILSON, CHIEN, MAX, ZHANG, YA-QIN
On an employer assignment, the assignors are typically the inventors.