منابع مشابه
Concealment by uniform motion
The perceived lateral position of a transmitted beam, upon propagating through a slab made of homogeneous, isotropic, dielectric material at an oblique angle, can be controlled through varying the velocity of the slab. In particular, by judiciously selecting the slab velocity, the transmitted beam can emerge from the slab with no lateral shift in position. Thereby, a degree of concealment can b...
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In this work, the motion parameters of the bi-directionally predicted pictures (B-pictures) of MPEG-1,2 are exploited for concealment of large portions of corrupted anchor pictures that might arise due to channel errors or packet losses. To further enhance the quality of the concealed anchor pictures, we propose two methods of constraining the motion vectors of the B-pictures that strengthen th...
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Motion-JPEG is a common video format for compression of motion images with highquality using JPEG standard for each frame of the video. During transmission through a noisychannel some blocks of data are lost or corrupted, and the quality of decompression frames decreased.In this paper, for reconstruction of these blocks, several temporal-domain, spatial-domain, andfrequency-domain error conceal...
متن کاملAn Improved Motion Vector Estimation Approach for Video Error Concealment Based on the Video Scene Analysis
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ژورنال
عنوان ژورنال: Journal of the European Optical Society: Rapid Publications
سال: 2007
ISSN: 1990-2573
DOI: 10.2971/jeos.2007.07003