Decoder having digital image stabilization function and...

Details Decoder having digital image stabilization function and... Decoder having digital image stabilization function and...

2006-03-07

2006-03-07

Vo, Tung (Department: 2613)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

Reexamination Certificate

active

07010045

ABSTRACT:
A decoder and a method for preventing and correcting a fluctuated image which occurs due to a user's fluctuated hand when recording using a mobile image communication system by adapting a digital image stabilization technique in a video decoder are provided. When decoding an encoded bit stream by the macro block unit, a motion information is extracted, and one global motion vector is determined using the extracted information. The global motion vector is directed to a motion of a mobile image communication system, and it is possible to obtain a stabilized image by correcting the decoded image data stored in a frame memory using the global motion vector. Since only the motion information is used in the encoded bit stream, a hardware construction is simplified. Therefore, the decoder is well adapted to compute a large amount of data.

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