The conventional approach to downscale a compressed video sequence is to decompress it at the video server, perform the down-sampling in the pixel domain and ...
First is to find the DCT domain representation of the downscaled video in the intra-coded (I) frames using the DCT coefficients of the original sequence; ...
“Compressed Domain Motion Vector Re-sampling for Downscaling of MPEG Video”, 1999 IEEE. International Conference on Image Processing, Oct. 1999, Kobe Japan ...
Digital video is becoming widely available in compressed form, such as a motion JPEG or MPEG coded bitstream. In applications such as video browsing or ...
Digital video is becoming widely available in compressed form, such as a motion JPEG or MPEG coded bitstream. In applications such as video browsing or ...
In this paper, we develop an alternative approach to the problem of generating an MPEG, H.261, or H.263 compliant bitstream for video at spatial resolution from.
This requires downscaling of the video before transmission. The conventional spatial domain approach for downscaling video is computationally very expensive.
We provide simulation results comparing the proposed compressed domain approach versus the conventional spatial-domain method; the results suggest that the.
Adaptive motion vector resampling (AMVR) is a class III approach proposed in [4] to estimate the output motion vectors using the original motion information ...
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We propose an alternative compressed do-main based approach that computes the motion vectors for the downscaled (N/2x N/.2) video sequence directly from the ...