-In this paper, area-efficient architectures for the implementation of integer discrete cosine transform (DCT) of different lengths to be used in High Efficiency Video Coding (HEVC) are proposed. An efficient constant matrix multiplication scheme can be used to derive parallel architectures for 1-D integer DCT of different lengths such as 4, 8, 16, and 32. Also power-efficient structures for fo...

In the chain of stereoscopic video processing, stereoscopic video coding and viewing are usually two independent stages. Conventional stereoscopic video coding puts emphasis on improving the coding efficiency by seeking the optimal trade-off between the coding bit-rate and the signal-based distortion, while neglecting the perceptual behaviors of binocular combination when stereoscopic video is ...

Inter-picture prediction in HEVC can be seen as a steady improvement and generalization of all parts known from previous video coding standards, e.g. H.264/AVC. The motion vector prediction was enhanced with advanced motion vector prediction based on motion vector competition. An inter-prediction block merging technique significantly simplified the block-wise motion data signaling by inferring ...

Heterogeneous platforms integrating several CPU cores and GPU accelerators have established in several application domains, from desktop, server and mobile. To take full advantage of such platforms, video encoders/decoders have to exploit a broader design space, by cooperatively executing in all the available CPU and GPU cores. To attain such objective, three novel contributions that aim the ex...

Intra-prediction is amethod for coding standalone frames in video coding. Until now, this hasmainly been done using linear formulae. Using an Artificial Neural Network (ANN)may improve the prediction accuracy, leading to improved coding efficiency. In this degree project, Fully Connected Networks (FCN) and Convolutional Neural Networks (CNN) were used for intra-prediction. Experiments were done...

Lossy image and video compression algorithms yield visually annoying artifacts including blocking, blurring, and ringing, especially at low bit-rates. To reduce these artifacts, post-processing techniques have been extensively studied. Recently, inspired by the great success of convolutional neural network (CNN) in computer vision, some researches were performed on adopting CNN in post-processi...

This study presents a design of two-dimensional (2D) discrete cosine transform (DCT) hardware architecture dedicated for High Efficiency Video Coding (HEVC) in field programmable gate array (FPGA) platforms. The proposed methodology efficiently proceeds 2D-DCT computation to fit internal components and characteristics of FPGA resources. A four-stage circuit architecture is developed to implemen...

High Efficiency Video Coding (HEVC) can significantly improve coding efficiency by using 35 intra prediction modes, which lead to a substantial increase in coding complexity yet. In this paper, a fast intra mode decision method for HEVC based on DCT is proposed. The algorithm estimates the texture direction of the prediction block (PB) by using discrete cosine transform and reduces the number o...

In this paper, a novel quadratic ρ-domain frame layer rate control algorithm is proposed for Low Delay (LD) configuration in High Efficiency Video Coding (HEVC). Firstly, we propose a quadratic ρ-domain rate quantization (R-Q) model to establish the relationship between bit rate and quantization parameter. Subsequently, inspired by the specialized QP determination and reference picture set (RPS...

—Due to the problems of the new generation of video coding standard HEVC (High-Efficiency Video Coding), such as high computational complexity and the large computation, This paper proposes a fast inter-mode decision algorithm based on image texture features and by using Sobel operator the edge features are extracted from CU which is partitioned by simulation, and then the final partitioning s...