نتایج جستجو برای: video coding

تعداد نتایج: 291499  

2000
K. Jinzenji S. Okada H. Watanabe N. Kobayashi

The new video coding standard MPEG-4 provides content-based functionality and low bit-rate video compression. We focused on the “sprite coding” supported MPEG-4 Version 1 Main profile in order to achieve “VHS quality video on 2B (128kbps)” for narrow-band transmission such as the Internet. Automatic VOP (Video Object Plane) generation technologies are being studied as one of the most important ...

2012
Cesar Cabrera-Medina

Network coding is a new technique in the field of information theory and coding theory. This emerging technique offers great benefits in the communication networks such as increased throughput and energy savings. In this paper, we evaluate network coding for video transmission scenarios. In these scenarios, the source nodes encode the video packets, while the intermediate nodes implement networ...

Journal: :Signal, Image and Video Processing 2015
Jung-Ah Choi Yo-Sung Ho

After the development of the next generation video coding standard, referred to as high efficiency video coding (HEVC), the joint collaborative team of the ITU-T video coding experts group and the ISO/IEC moving picture experts group has now also standardized a lossless extension of such a standard. HEVC was originally designed for lossy video compression, thus, not ideal for lossless video com...

Sparse coding is an unsupervised method which learns a set of over-complete bases to represent data such as image and video. Sparse coding has increasing attraction for image classification applications in recent years. But in the cases where we have some similar images from different classes, such as face recognition applications, different images may be classified into the same class, and hen...

1997
Gregory J. Conklin Sheila S. Hemami

Two temporally scalable video coding techniques, temporal subband coding (TSB) and predictive coding, are evaluated both theoretically and in practice to provide comparisons of compression and visual quality at differing frame rates. Results demonstrate that TSB coding has a higher coding gain at full frame rate than predictive coding if both algorithms use either no motion compensation or moti...

2012
Zhiru Shi A. Kondoz

The promising video coding standard, H.264/AVC [1], is developed by the Join Video Team of ITU-T Video Coding Experts Group (VCEG) and ISO/IEC Moving Picture Experts Group (MPEG). By utilizing several new techniques, such as advanced intra predictions, variable block size ME, integer transformation, in-loop deblocking filter, H.264/AVC has achieved significant compression gain compared with pre...

2010
Qijun Wang Ruimin Hu Zhongyuan Wang Chu Zhou Wenbing Wang

in video coding, intra coding plays an important role in both coding efficiency and error resilience, and current intra coding methods still have great potential to be further investigated. In this paper, a high performance intra coding method based on video epitomic analysis is proposed. Epitomic priors suitable for coding are extracted through video epitomic analysis, and are used to generate...

2011
Xiong-wei ZHANG Tao ZHU Qiang XIAO

Compared with the scalable parts of previous video coding specifications, the Scalable Video Coding (SVC) extension of H.264 Advanced Video Coding (AVC) standard (short for H.264/SVC) has demonstrated significant improvement of video compression performance. In this paper, different coding methods for scalability are analyzed and their influence on the performance of H.264/SVC is investigated t...

Journal: :CoRR 2017
Ling-Yu Duan Yihang Lou Shiqi Wang Wen Gao Yong Rui

Deep learning has achieved substantial success in a series of tasks in computer vision. Intelligent video analysis, which can be broadly applied to video surveillance in various smart city applications, can also be driven by such powerful deep learning engines. To practically facilitate deep neural network models in the large-scale video analysis, there are still unprecedented challenges for th...

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