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High efficiency video coding (HEVC) based 3D video coding (3D-HEVC) is the latest 3D video coding standard under development. In 3D-HEVC, most of coding units (CU) select merge modes as their best modes. However, they still have to check a large number of irrelevant candidate modes in mode decision process, which brings significant complexity. In this paper, we propose a low complexity texture mode...
When designing hardware-accelerated video encoding systems, it is fundamental to determine the maximum throughput needed by each subsystem so that the design can optimize the cost-performance tradeoff. One of the key modules in video coding is the 2D transform operation which is typically subject to heavy optimization efforts. This work investigates the tradeoff between the computational power spent...
Scalable High Efficiency Video Coding (SHVC) is the extension of the High Efficiency Video Coding (HEVC). This standard is developed to ameliorate the coding efficiency for the spatial and quality scalability. In this paper, we investigate a survey for SHVC extension. We describe also its types and explain the different additional coding tools that further improve the Enhancement Layer (EL) coding...
Scalable video encoders compress a single video sequence to produce a bitstream composed of several layers, corresponding to different temporal, spatial and quality representations of the input video sequence. This technique improves the coding efficiency compared to simulcast encoding of each representation by exploiting additional correlations through inter-layer predictions. The latest scalable...
This paper presented a fuzzy rate control algorithm for scalable extension of H.264/AVC (H.264/SVC video coding standard). The algorithm operates on the group of picture (GOP) level of scalable layers. It aggregates the bit streams of all scalable layers in a virtual buffer and adjusts the QP of the base layer according to a feedback signal from the buffer status. Considering the dependency of SVC...
This paper proposes a fuzzy rate controller at the group of picture (GOP) level of the high efficiency video coding standard for variable bitrate applications. A fuzzy controller and a virtual buffer are used in our algorithm to calculate quantization parameter with minimized unnecessary fluctuation over the GOPs while the buffering constraint is obeyed as well as visual quality unnecessary fluctuation...
The H.264/AVC video coding standard is used in a wide range of applications from video conferencing to high-definition TV. Compared to the previous standard, the H.264/AVC has significantly better performance in terms of PSNR and visual quality at the same bit rate. It uses a complex mode decision technique based on rate-distortion optimization (RDO). Therefore, this technique introduces a high computational...
In the HEVC standardization process, the In-loop filter module is added with a new video coding tool called sample adaptive offset (SAO). SAO is placed after de-blocking in video coding loop. The HM implementation (HM10.0, 2013) & the standard (Bross et al., 2013) indicates picture basis in-loop filtering i.e., both de-blocking and SAO. Although standard specifies picture basis de-blocking operation,...
The latest High Efficiency Video Coding (HEVC) standard achieves a significant compression efficiency improvement over the H.264/Advanced Video Coding (AVC) standard, but with a much higher computational complexity. In this paper, we propose a novel framework for software-based H.264/AVC to HEVC transcoding, integrated with tools such as wavefront parallel processing that are useful for achieving...
This paper mainly focuses on introducing an edge based bi-directional frame interpolation technique to increase performance of the High Efficiency Video Coding (HEVC) standard in error prone environment. The main aim of the proposed technique is to maintain the structural similarity between the dropped frame and the interpolated frame, while keeping the redundant data transmission at a minimum level...
This paper presents a highly parallel motion estimation architecture for High Efficiency Video Coding (HEVC) encoder. The proposed architecture has 16 processing units operating in parallel to calculate the sum of absolute difference values of all possible variable prediction block sizes. Hence, it calculates the bit cost regarding every partition in order to find the best matching candidate in terms...
This paper proposes a quality of service (QOS) retention for transfer of multimedia information in wireless sensor network. In this method selective encryption has been proposed for the H.264 video coding by an intention of expanding end user video quality. To keep the encrypted streaming format-compliance to the H.264/AVC standard decoder only I frames are encrypted with AES algorithm. The anticipated...
Some video applications work with parallel bitstreams however only parts of them are required. Decoding the streams entirely might be prohibitive due to high number of video streams and / or high resolution or bitrate of the streams. In such cases, a random access also referred as to partial decoding has to be supported. It can be achieved with a conforming decoder, if the video is separated into...
A new generation video coding standard developed by IEEE 1857 working group will be published as IEEE 1857.4, which assumes the work on the first generation of IEEE 1857 video coding standard IEEE std. 1857-2013(IEEE 1857.1) and targets to double the coding efficiency of IEEE std. 1857-2013. This paper provides an overview of the forthcoming IEEE 1857.4 video coding standard, including the background...
3D holoscopic image can provide true 3D content by reproducing the light rays of the 3D scene and is regarded as a promising technique for future 3D TV. Disparity information is paramount intrinsic characteristic of the 3D holoscopic image. In this paper, a disparity compensation based 3D holoscopic image coding algorithm using HEVC is put forward. In order to drive an authentic disparity, we expand...
H.265/High Efficiency Video Coding (HEVC), the latest video coding standard developed jointly by ITU-T and by ISO/IEC in the joint collaborative team on video coding (JCT-VC), has shown significant objective compression improvements over the last video coding standard H.264/AVC. After the establishment of H.265/HEVC, more and more attention has been paid on how to further improve the visual quality...
In this paper, we propose a novel depth map coding scheme based on adaptive block compressive sensing. Different from the traditional two-dimensional image compression, edge information is more significant for the reconstruction of a depth map. Therefore, in view of the object boundaries characteristics of a depth map, we first divide the whole depth image into blocks with different sizes. Then according...
Depth maps are made up of sharp edges and near homogenous areas. To better represent object edges in depth videos, the three-dimensional (3D) extension of the High Efficiency Video Coding (HEVC) standard allows the use of additional Depth Modeling Modes (DMM) to the existing intra-prediction modes. One of these modes, Mode 3, performs distortion calculations on a set of pre-defined Wedgelet lists...
Video conferencing and other real-time multimedia traffic poses challenge for transmission over constant bandwidth network due to high instantaneous bandwidth generated by intra-predicted frames (I-frame). This paper proposes a novel solution for significant reduction of peak instantaneous bandwidth requirements using a new type of frame called delayed duplicate intra frames (DDI frame) in addition...
Ultra High Definition TV (UHDTV) services are being trialled while UHD streaming services have already seen their commercial débuts. Given the very high amount of data associated with the UHDTV format, efficient compression technology such as the one specified by the state-of-the-art High Efficiency Video Coding (HEVC) standard should be employed. However, HEVC improved compression comes at the expense...
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