Apparatus and method of transcoding image data in digital TV

Details Apparatus and method of transcoding image data in digital TV Apparatus and method of transcoding image data in digital TV

2006-03-07

2006-03-07

Philippe, Gims (Department: 2613)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C382S236000, C348S416100

Reexamination Certificate

active

07010040

ABSTRACT:
A method and an apparatus of transcoding image data in a digital TV system are disclosed. The method and apparatus of the present invention performs global and local motion compensation processes while converting the particular data bit rate of input image data to a different data bit rate. As a result, the quality of the image can be greatly improved compared to other existing techniques. When there is no global motion detected in an image frame, the local motion compensation is performed based on new local motion vectors estimated or on the previous local motion information.

REFERENCES:
patent: 5831688 (1998-11-01), Yamada et al.
patent: 6178202 (2001-01-01), Nakaya
patent: 6246438 (2001-06-01), Nishikawa et al.
patent: 6687302 (2004-02-01), Nakaya
patent: 6735253 (2004-05-01), Chang et al.

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