Intra-frame flicker reduction in video coding

Details Intra-frame flicker reduction in video coding Intra-frame flicker reduction in video coding

2006-07-27

2011-10-11

Kelley, Christopher S (Department: 2482)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240130, C375S240260, C348S447000

Reexamination Certificate

active

08036270

ABSTRACT:
The embodiments of the present invention provide for methods, devices, and systems adapted to reduce flickers introduced in the encoding process, particularly during the generation of intra-coded pictures. The method provides for the determination of flicker areas within pictures and applying a flicker-control cost function, for example, on those determined flicker areas when selecting an intra-prediction mode.

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X. Fan, W. Gao, Y. Lu and . Zhao, “Flickering Reduction in All Intra Frame Coding,” Joint Video Team (JVT) of ISO/IEC MPEG & ITU-TVCEG,JVT-EO70, 5th Meeting, Geneva, Oct. 2002.
S. Sakaida, K. Igushi, S. Gohshi and Y. Fujita., “Adaptive Quantization Reduction for Reducing Flicker of AVC/H.264 Intra Frames,” Picture Coding Symposium, Dec. 2004.

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