A new mode selection method for intra-block coding in the H.264/MPEG-4 part 10 video-coding standard is proposed. There are nine 4 4 and four 16 16 intra-prediction modes for intra-block coding. Thus, to find the best intra-block coding mode for a 16 16 macroblock, all of the 144 (16 9) 4 4 and four 16 16 intra-modes need to be exhaustively computed and evaluated. We propose a context-based int...

In voice coding applications where there is no constraint on the encoding delay, segment coding techniques can be used to achieve a reduction in data rate. For low data rate linear predictive coding schemes, increasing the encoding delay allows one to exploit any long term temporal stationarities on an interframe basis, thus reducing the transmission bandwidth or storage needs of the speech sig...

This paper proposes C&M, a novel network coding scheme to deal with both inter-flow and intra-flow traffic in wireless networks. Prior work on wireless network coding design belongs to either inter-flow network coding or intra-flow network coding. C&M attempts to combine advantages of both network coding approaches to develop a more efficient network coding scheme. Based on COPE, C&M allows eac...

A novel multi-order-residual-prediction (MORP) coding approach is proposed to improve spatial prediction efficiency in video coding. We observe that the compression ratio of a video coding algorithm depends on the nature of sequences as indicated by the ratio between inter and intra blocks in the bit-stream. When the percentage of intra blocks increases, the prediction efficiency decreases, thu...

Intra macroblock refreshment is an effective approach for error-resilient video coding. In this paper, in addition to intra coding, we propose to add two macroblock coding modes to enhance the transmission robustness of the coded bitstream, which are inter coding with redundant macroblock and intra coding with redundant macroblock. The selection of coding modes and the parameters for coding the...

This paper proposes a compression technique to improve the quality of color in very low bit rate coding of video. The general idea is to convert the two chrominance components to one scalar chrominance which is processed further. The scalar representation of chrominance is obtained through vector quantization in the chrominance plane. Each (CB ; CR) vector is represented by a scalar index to a ...

This paper presents the intra prediction and mode coding of Versatile Video Coding (VVC) standard. standard was collaboratively developed by Joint Experts Team (JVET). It follows traditional architecture a hybrid block-based codec that also basis previous standards. Almost all features VVC either contain substantial modifications in comparison with its predecessor H.265/HEVC or were newly added...

Exploiting spatial redundancy in images is responsible for a large gain the performance of image and video compression. The main tool to achieve this called intra-frame prediction. In most state-of-the-art coders, intra prediction applied block-wise fashion. Up now angular was dominant, providing low-complexity method covering variety content. With deep learning, however, it possible create met...