Video encoder with embedded scene change and 3:2 pull-down...

Details Video encoder with embedded scene change and 3:2 pull-down... Video encoder with embedded scene change and 3:2 pull-down...

2005-08-23

2005-08-23

Wong, Allen (Department: 2613)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240000, C375S240010, C375S240120

Reexamination Certificate

active

06934335

ABSTRACT:
In one embodiment, a video encoder having a first and second phase of motion estimation, and scene change and 3:2 pull-down detection components is provided. In another embodiment, the first phase of motion estimation determines a set of field motion vectors to execute the scene change and 3:2 pull-down detection components. In another embodiment, the scene change and 3:2 pull-down detection component, and the second phase of the motion estimation occur after the first phase of motion estimation.

REFERENCES:
patent: 5638129 (1997-06-01), Lee
patent: 6058140 (2000-05-01), Smolenski
patent: 6574278 (2003-06-01), McVeigh et al.
R.J. Schutten, et al., “Real-Time 2-3 Pull-Down Elimination Applying Motion Estimation/Compensation in a programmable Device”, IEEE Transactions on Consumer Electronics, vol. 44, No. 3, Aug. 1998, pp. 930-938.
M.C. Chen, et al., “A High Accuracy Predictive Logarithmic Motion Estimation Algorithm for Video Coding”, IEEE 1995, pp. 617-620.

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