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检索条件"主题词=coding efficiency"
163 条 记 录,以下是91-100 订阅
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Discharge regularity in the turtle posterior crista: comparisons between experiment and theory
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JOURNAL OF NEUROPHYSIOLOGY 2013年 第12期110卷 2830-2848页
作者: Goldberg, Jay M. Holt, Joseph C. Univ Chicago Dept Pharmacol & Physiol Sci Chicago IL 60637 USA
Intra-axonal recordings were made from bouton fibers near their termination in the turtle posterior crista. Spike discharge, miniature excitatory postsynaptic potentials (mEPSPs), and afterhyperpolarizations (AHPs) we... 详细信息
来源: 评论
Performance Comparison of H.265/MPEG-HEVC, VP9, and H.264/MPEG-AVC Encoders
Performance Comparison of H.265/MPEG-HEVC, VP9, and H.264/MP...
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Picture coding Symposium (PCS)
作者: Grois, Dan Marpe, Detlev Mulayoff, Amit Itzhaky, Benaya Hadar, Ofer Fraunhofer Heinrich Hertz Inst HHI Image Proc Dept Berlin Germany Ben Gurion Univ Negev Commun Syst Engn Dept Beer Sheva Israel
This work presents a performance comparison of the two latest video coding standards H.264/MPEG-AVC and H.265/MPEG-HEVC (High-efficiency Video coding) as well as the recently published proprietary video coding scheme ... 详细信息
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Analyzing and Optimizing Video Quality in the New H.265 (HEVC) Standard
Analyzing and Optimizing Video Quality in the New H.265 (HEV...
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SMPTE Technical Conference
作者: Advait Mogre Bhupender Kumar Shekhar Madnani Muneesh Sharma Shailesh Kumar Interra Systems 1601 S. De Anza Blvd. Suite 212 Cupertino CA 95014 USA
The emerging H.265 High efficiency Video coding (HEVC) standard for video compression is geared towards providing high quality / high resolution video at low to moderate bit rates; thus providing a significant increas... 详细信息
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Comparison of Bandpass ΣΔ Modulator coding efficiency With a Periodic Signal Model
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IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS 2008年 第11期55卷 3763-3775页
作者: Johnson, Thomas Stapleton, Shawn P. PulseWave RF Austin TX 78746 USA Simon Fraser Univ Sch Engn Burnaby BC V5A 1S6 Canada
Maximizing coding efficiency is important in applications where bandpass Sigma Delta modulation is used as a source encoder to synthesize a two-level pulse train in RF class-D amplifiers. A periodic pulse-train model ... 详细信息
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Dynamic threshold-based keyframe detection and its application in rate control
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IET IMAGE PROCESSING 2012年 第7期6卷 986-995页
作者: Yao, W. Li, Z. Rahardja, S. Inst Infocomm Res Signal Proc Dept Singapore Singapore
This study proposes a new dynamic threshold model to detect keyframes for the coding of a video sequence. The proposed detection threshold is content adaptive which dynamically updates its value at each frame by takin... 详细信息
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Design of a context-adaptive variable length encoder for real-time video compression on reconfigurable platforms
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IET IMAGE PROCESSING 2012年 第4期6卷 301-308页
作者: Licciardo, G. D. Albanese, L. Freda Univ Salerno Dept Elect & Informat Engn DIEII I-84084 Salerno Italy
In this study, a new context-adaptive variable length-coding encoder architecture is proposed particularly aimed to be implemented with field programmable logics (FPL) like FPGAs. The design implements different appro... 详细信息
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Memory Efficient Set Partitioning in Hierarchical Tree (MESH) for Wavelet Image Compression
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IEICE TRANSACTIONS ON COMMUNICATIONS 2012年 第9期E95B卷 2906-2913页
作者: Ghani, Farid Kader, Abdul Khan, Ekram Ahmad, Badlishah Univ Malaysia Perlis Sch Comp & Commun Engn Kuala Perlis 02000 Perlis Malaysia Aligarh Muslim Univ Dept Elect Engn Aligarh 202002 Uttar Pradesh India
This paper presents a memory efficient version of set partitioning in hierarchical tree (SPIHT). The proposed coder called Memory Efficient SPIHT (MESH) uses a single re-usable list instead of three continuously growi... 详细信息
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Perceptual Video Compression: A Survey
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IEEE JOURNAL OF SELECTED TOPICS IN SIGNAL PROCESSING 2012年 第6期6卷 684-697页
作者: Lee, Jong-Seok Ebrahimi, Touradj Yonsei Univ Sch Integrated Technol Inchon 406840 South Korea Ecole Polytech Fed Lausanne Inst Elect Engn Multimedia Signal Proc Grp CH-1015 Lausanne Switzerland
With the advances in understanding perceptual properties of the human visual system and constructing their computational models, efforts toward incorporating human perceptual mechanisms in video compression to achieve... 详细信息
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Video compression based on frequency sensitivity
Video compression based on frequency sensitivity
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Conference on Satellite Data Compression, Communications, and Processing VIII
作者: Seo, Guiwon Youn, Sungwook Lee, Chulhee Yonsei Univ Dept Elect & Elect Engn Seoul 120749 South Korea
In this paper, we investigate the frequency sensitivity of the human visual system. The human visual system reacts differently at different frequencies. Based on this observation, we used different quantization steps ... 详细信息
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AN EFFICIENT SURVEILLANCE coding METHOD BASED ON A TIMELY AND BIT-SAVING BACKGROUND UPDATING MODEL
AN EFFICIENT SURVEILLANCE CODING METHOD BASED ON A TIMELY AN...
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IEEE Visual Communications and Image Processing (VCIP)
作者: Chen, Wei Zhang, Xianguo Tian, Yonghong Huang, Tiejun Peking Univ Natl Engn Lab Video Technol Beijing 100871 Peoples R China
(1)Background modeling is an important pre-processing step for object detection in surveillance video analysis systems. Recently, it has been proved to be useful for high-efficiency surveillance video coding. In exist... 详细信息
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