I-Abstract Ultra high definition (UHD) video includes 4K (3840×2160) and 8K (7680×4320, also known as super Hi-vision) formats. By delivering 4 and 16 times of pixels per frame compared to today's high definition (1920x1080), UHD videos offers remarkably enhanced visual experience and provides rich cues for stereoscopic feeling such as visual field angle, linear perspective, and texture gradien...

The H.264/AVC design adopts a multidirectional spatial prediction model to reduce spatial redundancy, where neighboring pixels are used as a prediction for the samples in a data block to be encoded. In this paper, a recursive prediction scheme and an enhanced (block-matching algorithm BMA) prediction scheme are designed and integrated into the state-of-the-art H.264/AVC framework to provide a n...

Abstract This chapter introduces three hypergraph computation paradigms, including intra-hypergraph computation, inter-hypergraph and structure computation. Intra-hypergraph representation aims to conduct learning of a hypergraph, where each subject is represented by its components. Inter-hypergraph vertices in the vertex hypergraph. Hypergraph prediction, which find connections among vertices....

Further improvement in performance, to achieve near transparent quality LSF quantization, is shown to be possible by using a higher order two dimensional (2-D) prediction in the coefficient domain. The prediction is performed in a closed-loop manner so that the LSF reconstruction error is the same as the quantization error of the prediction residual. We show that an optimum 2-D predictor, explo...

the present study was designed to explore the anti-inflammatory effect of fluvoxamine, as a selective serotonin reuptake inhibitor (ssri) anti-depressant, on carrageenan-induced paw edema in more details. at first, fluvoxamine was administered intra-peritoneally (2.5, 12.5, 25 and 50 mg kg-1) 30 min before the subplantar injection of carrageenan. fluvoxamine was also injected intra-peritoneally...

In this paper, a still image encoder based on H.26L intra mode algorithm is proposed and implemented in a FPGA prototype board. H.26L[1) is proposed by ITU-T to provide high compression efficiency for very low bit rate communication. Intra mode in H.26L (H.26Li) uses high level spatial prediction and provides 2 db PSNR gain more than JPEG standard. It is suitable for still image camera applicat...

In this paper, we propose an intra mode bit skip algorithm for H.264 intra 4×4 mode to reduce the mode representation burden. The proposed algorithm enhances the “adaptive intra mode bit skip (AIMBS)” in literature by considering the bit skip for more modes rather than only DC mode. In this work, the correlation between vertical and horizontal differences of reference pixels and encoded modes a...

Total variation (TV) minimization algorithms are often used to recover sparse signals or images in the compressive sensing (CS). But the use of TV solvers often suffers from undesirable staircase effect. To reduce this effect, this paper presents an improved TV minimization method for block-based CS by intra-prediction. The new method conducts intra-prediction block by block in the CS reconstru...

One of the new features in the H.264/AVC encoder is the use of Lagrangian rate-distortion optimization (RDO) method during mode decision at the macroblock level. The RDO technique has been employed in H.264/AVC for intra-prediction mode selection to achieve better coding efficiency. But the computational complexity of mode decision algorithm is extremely high. To reduce the complexity of mode d...

Dynamic bandwidth allocation in EPONs can be generally separated into inter-ONU scheduling and intra-ONU scheduling. In our previous work, the active intra-ONU scheduling (AS) utilizes multiple queue reports (QRs) in each report message to cooperate with the inter-ONU scheduling and makes the granted bandwidth fully utilized without leaving unused slot remainder (USR). This scheme successfully ...