The screen content coding (SCC) extension of high efficiency video (HEVC) improves gain for videos by introducing two new modes, namely, intra block copy (IBC) and palette (PLT) modes. However, the is achieved at increased cost computational complexity. In this paper, we propose a decision tree-based framework fast mode investigating various features in training sets. To avoid exhaustive searching process, sequential arrangement trees proposed to check each separately inserting classifier...

Screen content coding (SCC) is an extension of high efficiency video by adopting new modes to improve the SCC at expense increased complexity. This paper proposes online-learning approach for fast mode decision and unit (CU) size in SCC. To make a decision, corner point first extracted as unique feature screen content, which essential pre-processing step guide Bayesian modeling. Second, distinct color number CU derived another build precise model using skipping unnecessary modes. Third,...

Multiview video plus depth format has been adopted as the emerging 3D representation recently. It includes a limited number of textures and maps to synthesize additional virtual views. Since quality influences view synthesis process, their sharp edges should be well preserved avoid mixing foreground with background. To address this issue, 3D-High Efficiency Video Coding (HEVC) introduces new coding tools, partition-based intra mode [depth modeling (DMM)], residual description technique...

A screen content coding (SCC) extension to high efficiency video has been developed incorporate many new tools in order achieve better for videos mixed with camera-captured and graphics/text/animation. For instance, the Intra Block Copy (IntraBC) mode helps encode repeating patterns within same frame while Palette aims at encoding a few major colors. However, IntraBC brings along computational complexity due exhaustive block matching though there are already some constraints fast approaches...

Screen content coding (SCC) is the extension to high-efficiency video (HEVC) for compressing screen videos. New tools, intrablock copy (IBC), and palette (PLT) modes, are introduced encode (SC) such as texts graphics. The IBC mode used encoding repeating patterns by performing block matching within same frame, while PLT designed SC with few distinct colors major their corresponding locations using an index map. However, use of modes increases encoder complexity remarkably though efficiency...

This paper presents fast and efficient intra prediction algorithms for screen content coding (SCC). The proposed focus on smooth regions frequently appeared in videos, which have the characteristics of noiselessness. All samples a noiseless region exhibit exactly same pixel value. We then propose two techniques SCC based smoothness boundary are used prediction. Our algorithm can reduce computational complexity by at most 26.7% while keeping nearly video quality. Moreover, removing redundant...

3D-HEVC is in the process of standardization as highest profile extension HEVC for 3D video coding, which supports advanced format, namely multi-view videos plus depth (MVD). In order to preserve sharp edges and avoid ringing artifacts synthesized views, modelling modes (DMMs) are adopted into achieve high coding efficiency. However, computational complexity increases significantly with these modes. this paper, an efficient algorithm wedgelet pattern decision proposed one type DMMs: explicit...

3D-HEVC is a good coding solution for multi-view video plus depth data. It achieves performance of synthesized views. However, intra brings unbearable complexity, which the most urgent issue to be solved practical applications. Typically, maps have feature structure or less texture compared with natural videos. Therefore, in this paper, fast algorithm proposed speed up quadtree decision by feature-corner point (CP). The can adaptively extract CPs and preallocate level quadtree. large size...

The Intra Block Copy (IntraBC) mode is a very efficient coding tool for the screen content (SCC) extension in High Efficiency Video Coding (HEVC) due to frequently occurrences of repeating patterns and noiseless characteristics videos. There are local search hash IntraBC increase efficiency. However, also brings along high computational complexity SCC as exhaustive block matching done within same frame. Though there already some constraints applied reduce its complexity, it still high. To...

The uniform intra prediction increases the modes up to 35 and brings better coding efficiency in HEVC. Besides, depth modelling (DMMs) are introduced of 3D-HEVC preserve sharp edges avoid ringing artifacts a synthesized view. Meanwhile, encoding time rapidly due huge number mode candidates. Based on spatial correlation map, we find that not all necessary be considered most cases. Hence, fast content-dependent decision algorithm is raised this paper by classifying distribution reference...

Screen content coding (SCC) is an extension of high efficiency video (HEVC), and it developed to improve the screen videos by adopting two new modes: Intra Block Copy (IBC) Palette (PLT). However, flexible quadtree-based tree unit (CTU) partitioning structure various mode candidates make fast algorithms SCC extremely challenging. To efficiently reduce computational complexity SCC, we propose a deep learning-based prediction network DeepSCC that contains parts: DeepSCC-I DeepSCC-II. Before...

The Intra Block Copy (IntraBC) mode is a very efficient coding tool for the screen content (SCC) extension in High Efficiency Video Coding (HEVC) by finding repeating patterns within same frame. Yet, it also brings along impractically high computational complexity SCC, which can be double of conventional HEVC, as exhaustive block matching done frame even though there are already some constraints applied to IntraBC mode. To reduce complexity, we propose skip unnecessary checking based on...

Nowadays, video quality assessment (VQA) plays a vital role in video-related industries to predict human perceived maintain the of service. Although many deep neural network-based VQA methods have been proposed, robustness and performance are limited by small scale available human-label data. Recently, some transfer learning-based pre-trained models other domains adopted compensate for lack enormous training samples. However, they result domain gap between source target domains, which...

Screen Content coding (SCC) is one of an extension to High Efficiency Video Coding (HEVC) developed by the Joint Collaborative Team on (JCT-VC). It adopts two new tools, intra block copy (IBC) and palette (PLT) modes, improve compression performance for coding. Nevertheless, mode selection causes a substantial increase in encoding complexity. In this paper, fast decision algorithm, which makes use early skip based Bayesian rule using online learning, proposed. The proposed algorithm...

To improve the coding performance of depth maps, 3D-HEVC includes several new intra tools at expense increased complexity due to a flexible quadtree Coding Unit/Prediction Unit (CU/PU) partitioning structure and huge number mode candidates. Compared natural images, maps contain large plain regions surrounded by sharp edges object boundaries. Our observation finds that features proposed in literature either speed up CU/PU size decision or they are also difficult make proper predictions for...

An intra prediction algorithm is proposed aiming to efficiently encode smooth regions in depth maps. By taking the textureless characteristics of maps into account, only one single direction instead multiple directions sufficient Consequently, coding can be skipped which results lower computational complexity and higher efficiency for synthesised views.

In this paper, we propose a scalable video coding (SVC) scheme for efficient of screen content videos while still providing the backward compatibility HEVC (High Efficiency Video Coding). By means, base layer is encoded as an HEVC-compatible bitstream enhancement with proposed (SCC) techniques support videos. For layer, Base Colors plus Escape (BCEC) approach used in which textual block represented by colors, escape colors and index map. To further enhance efficiency inter-layer intra...

The coding units (CU) partitioning in the 3D extension of high efficiency video standard (3D-HEVC) is recursively conducted on different block sizes from 64 × to 8 8. Besides, depth 3D-HEVC introduces several new tools for each CU improve efficiency, however, with great computational complexity.It noted that only a small number CUs recursive are encoded into final bitstream.Among these CUs, Intra 2N or N as optimal modes have very proportion.In this paper, we thus propose an early...

This paper proposes a fast algorithm to reduce the high computational complexity of depth map coding in 3D-HEVC, which obstructs 3D video from practical applications. Due special feature maps, modelling modes (DMMs) were developed keep sharp edges for map. Consequently, 3D-HEVC encoder can improve performance synthesized views significantly. However, this is at significant cost increased complexity. Since reuses well-known hierarchical structure, mode information parent units (CU) be reused...

Screen content coding have been supported recently in Versatile Video Coding (VVC) to improve the efficiency of screen videos by adopting new modes which are dedicated video compression. Two called Intra Block Copy (IBC) and Palette (PLT) introduced. However, flexible quad-tree plus multi-type tree (QTMT) structure for unit (CU) partitioning VVC makes fast algorithm SCC particularly challenging. To efficiently reduce computational complexity VVC, we propose a deep learning based prediction...

Screen content coding (SCC) was developed to enhance High Efficiency Video Coding (HEVC) for encoding screen videos. However, HEVC has dominated the market many years, and it leaves legacy videos encoded by HEVC. Therefore, is desired that are migrated from SCC improve efficiency. This paper presents a fast transcoding algorithm analyzing various features four categories. They decoder, static features, dynamic spatial features. First, unit (CU) depth level collected decoder utilized early...

3D videos have attracted attention from academia and industry after great success in the film industry. Multiview video plus depth (MVD) is most popular format to provide vivid feeling has been adopted as an international coding standard, namely extension of high efficiency (HEVC). MVD includes a limited number textures maps synthesise virtual views. In MVD, samples describe distance between camera actual object grey-level image. The characteristics are quite different texture images....

The coding efficiency of 3D-HEVC can be improved significantly by adopting more intra modes in depth map coding, including up to 35 conventional HEVC prediction and 4 modelling (DMMs). However, traversing these dramatically results unendurable high complexity. In this paper, we propose an efficient mode decision algorithm taking advantage the Low Complexity Rate-Distortion Cost information rough decision. Only one several most probable are then selected for cases adaptively based on...