Efficient Motion Vector Composition Algorithm by Activity Measurement for Downscaled Video Transcoder

Ching-Ting HSU, Mei-Juan CHEN

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Summary :

When the frame size is downscaled for video transcoding, the new motion vector (MV) must be computed. This paper presents an algorithm to utilize the activity measurement by DC value and the number of non-zero quantized DCT coefficients in the residual macroblock to compose the motion vector. It can reduce the complexity for motion estimation and improve the performance of the spatial domain video transcoder.

Publication
IEICE TRANSACTIONS on Communications Vol.E89-B No.3 pp.1036-1039
Publication Date
2006/03/01
Publicized
Online ISSN
1745-1345
DOI
10.1093/ietcom/e89-b.3.1036
Type of Manuscript
LETTER
Category
Multimedia Systems for Communications" Multimedia Systems for Communications

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