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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...
The novel High Efficiency Video Coding (HEVC) standard targets a broad set of different video formats ranging from QVGA up to Ultra-HD (4Kp60) resolutions. Especially the high spatial and temporal resolutions combined with the high algorithmic complexity makes implementing encoders and decoders a challenging task. Existing software based implementations on multi-core CPUs and/or DSPs suffer from real-time...
Efficient transport schemes for panoramic video delivery were proposed and demonstrated within the past decade. With the recent advances of head mounted displays however, consumers may soon have immersive and sufficiently convenient end devices at reach which could lead to an increasing demand for stereoscopic panoramic video experiences. This paper extents recent compressed domain techniques for...
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,...
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...
High Efficiency Video Coding (HEVC) is becoming more and more important in current consumer application platforms. Compared with H264 standard, it can reach up to 8192×4320 resolutions at 120fps. To accelerate HEVC decoding processing, this paper presents an efficient hardware entropy decoding architecture, Entropy decoding includes Colomb and CABAC decoding. Hierarchy ring buffer is designed to storage...
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...
In wireless video broadcast system, analog joint source-channel coding (JSCC) has shown advantage compared to conventional separate digital source/channel coding in the aspect that it can avoid cliff effect gracefully. What's more, analog JSCC only needs a little calculations at the encoder and has strong adaptability to different channel condition, which is very suitable to the wireless cooperative...
This paper proposes a new efficient bypass coding scheme (EBCS) based on Logarithmic Binary Arithmetic Coding (LBAC). The bypass coding model is used to encode a symbol which has equal probability (0.5). The percentage of the bypass coding model is about 25 in CABAC of H.265/HEVC. The proposed EBCS provides a hardware-efficient design that can significantly increase the processing speed, and it has...
The High Efficiency Video Coding (HEVC) reference encoder includes a Uniform Reconstruction Quantization (URQ) method. This block level quantization technique does not take into account the importance of transform coefficients in terms of signal reconstruction. In this paper, we present a transform coefficient level quantization technique based on a soft thresholding approach, in which the quantization...
We present a bidirectional, occlusion-aware temporal frame interpolation (BOA-TFI) scheme that builds upon our recently proposed highly scalable video coding scheme. Unlike previous TFI methods, our scheme attempts to put “correct” information in problematic regions around moving objects. From a “parent” motion field between two existing reference frames, we compose motion from both reference frames...
In order to perform high compression coding of 8K UHDTV with a 12-bit depth, we propose a video coding method with spatio-gradational reduction before the HEVC/H.265 encoding procedure and its restoration after the decoding procedure. Original 8K UHDTV is reduced spatio-gradationally to a 4K image with an 8-bit depth by Lloyd-Max quantization with wavelet decomposition to minimize quantization errors...
As the state-of-the-art video coding standard, High Efficiency Video Coding (HEVC) has been finalized in January 2013. To support the coding of multiple views and associated depth data, the development of the HEVC extension for 3D video coding is also about to be finalized. New coding unit (CU) level coding tools are added to the HEVC design to improve the compression capabilities for both video views...
In this paper, a novel video error concealment technique is presented. More specifically, for IP-based in-vehicle wireless networks, a robust video error concealment technique is proposed based on residual errors and boundary matching approach. Residual errors are used for checking reliability of motion vectors of coding units and a boundary matching algorithm is used for maintaining smoothness in...
Distributed video coding (DVC) is a recent paradigm of video coding, based on distributed source coding and side information (SI) generated at the Decoder. Most of the DVC schemes are using complex channel codes such as LDPC or Turbo codes, which are increasing the decoder complexity and delay. Many searches have been done to simplfy the coding schemes, one of them was done by replacing the channel...
The amount of generated screen content sequences has recently increased due to the high popularity of multimedia services such as videoconferencing and cloud video gaming. Screen content sequences are characterized by a high number of sharp edges and repeating patterns, which are difficult to compress using current video coding tools. This paper proposes improvements to lossless compression of these...
The Intra Block Copy (IntraBC) is a newly adopted tool in the HEVC extension for the screen content video coding. The IntraBC tool efficiently encodes repeating patterns in a picture. The current IntraBC scheme achieves about 1.0% bit-rate reduction on average and up to 4.3% bitrate reduction on natural content video for a database consisting of 2K, 4K, and 8K sequences. In this paper, we propose...
The latest High Efficiency Video Coding (HEVC) achieves significant compression performance improvement over Advanced Video Coding (AVC). The high compression efficiency of HEVC together with the wide availabilities of H.264/AVC decoders necessitates transcoding between these two technologies. In this paper, we propose a novel algorithm for software-based HEVC to H.264/AVC transcoding. By utilizing...
Current battery-powered devices that manipulate digital videos must consider the energy consumption of this process as an important issue, especially when high or ultra-high definition videos are handled. In this scenario, this paper proposes a solution to reduce the energy consumption in video coding systems by reducing the external memory communication during the motion estimation. The scheme presented...
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