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检索条件"主题词=transform coding"
10293 条 记 录,以下是4591-4600 订阅
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A most probable scan mode decision for H.264/AVC inter picture coding
A most probable scan mode decision for H.264/AVC inter pictu...
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2009 2nd IEEE International Conference on Computer Science and Information Technology(第二届计算机科学与信息技术国际会议 ICCSIT2009)
作者: Jie Jia Daeil Yoon Hae Kwang Kim Department of Computer Science Sejong University 143-747 Seoul Korea
Video coding standard H.264/AVC employs zig-zag scan and field scan to map transform coefficients from two dimensional matrix to one dimensional array. The zig-zag scan is used for transform coefficients in frame macr... 详细信息
来源: 评论
Antialiasing spatial scalable subband/wavelet coding using H.264/AVC
Antialiasing spatial scalable subband/wavelet coding using H...
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Picture coding Symposium, PCS
作者: Shih-Ta Hsiang Motorola Research Laboratories Schaumburg IL USA
This paper presents a new algorithm for reducing aliasing artifacts related to the conventional spatial scalable subband/wavelet coding for recovering video at lower resolution. The proposed scheme has been fully inte... 详细信息
来源: 评论
Joint optimization of run-length coding, context-based arithmetic coding and quantization step sizes
Joint optimization of run-length coding, context-based arith...
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Canadian Conference on Electrical and Computer Engineering (CCECE)
作者: En-hui Yang Longji Wang Department of ECE University of Waterloo ONT Canada Research In Motion Waterloo ONT Canada
Given the JPEG syntax, the rate-distortion performance a JPEG optimization method can improve is limited. Part of the limitation comes from the poor context modeling used by a JPEG coder, which fails to take full adva... 详细信息
来源: 评论
ROI auto-detecting and coding method for MRI images transmission
ROI auto-detecting and coding method for MRI images transmis...
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IEEE/ICME International Conference on Complex Medical Engineering, CME
作者: Zhengguang Liu Zhi Chai Ping Xing School of Electrical Engineering and Automation Tianjin University TJU Tianjin China
In this paper, a region of interest (ROI) MRI image coding scheme is proposed. This scheme use the Maxshift ROI image coding method supported in JPEG 2000 image coding standard. An automatic ROI detection method is al... 详细信息
来源: 评论
Fast binary partition tree based variable-size block-matching for video coding
Fast binary partition tree based variable-size block-matchin...
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IEEE International Conference on Image Processing
作者: Yi Luo Mehmet Celenk School of Electrical Engineering and Computer Science Stocker Center Ohio University Athens OH USA
In this work, we develop a fast binary partition tree based variable size video coding system. New adaptive algorithms proposed herein are applied to a video encoder with binary partition trees. First, to reduce the c... 详细信息
来源: 评论
Region-of-Interest Image coding Based on Perceptually Optimized Bitplane Realignment
Region-of-Interest Image Coding Based on Perceptually Optimi...
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International Conference on Electronic Computer Technology
作者: Yan Zhang Hai-ming Gu College of Automatic Control and Electronic Engineering Qingdao University of Science and Technology Qingdao China
Region-of-interest (ROI) image coding is one of the new features included in the JPEG2000 image coding standard. Two methods are defined in the standard: the Maxshift method and the generic scaling based method. In th... 详细信息
来源: 评论
A generalized optimal correlating transform for multiple description coding and its theoretical analysis
A generalized optimal correlating transform for multiple des...
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33rd IEEE International Conference on Acoustics, Speech and Signal Processing
作者: Uhlich, Stefan Yang, Bin Univ Stuttgart Chair Syst Theory & Signal Proc D-7000 Stuttgart Germany
This paper considers a coding scheme for data transmission over erasure channels which is also known as multiple description coding. The LMMSE prefilter method of Romano [1] is reviewed and generalized to allow three ... 详细信息
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Algebraic quantization of transform coefficients for embedded audio coding
Algebraic quantization of transform coefficients for embedde...
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33rd IEEE International Conference on Acoustics, Speech and Signal Processing
作者: De Meuleneire, M. Taddei, H. Pastor, D. Nokia Siemens Networks COO RTP PT HWCT Comp Techn SDE Otto Hahn Ring 6 D-81739 Munich Germany ENST Bretagne Technop Brest Iroise Dept SC F-29238 Brest 3 France
This paper proposes a new quantization for transform coefficients based on algebraic quantization. The coefficients are represented by a few pulses multiplied by a unique amplitude. The coefficients to be transmitted ... 详细信息
来源: 评论
A Performance-Aware IP Core Design for Multi-mode transform coding Using Scalable-DA Algorithm
A Performance-Aware IP Core Design for Multi-mode Transform ...
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Proceedings of 2006 IEEE International Symposium on Circuits and Systems,Volume 4
作者: Jia-Wei Chen Kuan-Hung Chen Jinn-Shyan Wang Jiun-In Guo Department of Electrical Engineering National Chung Engineering University Chiayi Taiwan Department of Computer Science and Information Engineering National Chung Engineering University Chiayi Taiwan
This paper proposes a performance-aware transform IP design which can be configured to appropriate hardware for different performance requirements on demand without requiring additional data bandwidth in Multi-mode vi... 详细信息
来源: 评论
A Steganalytic Algorithm Aiming at JPEG Image
A Steganalytic Algorithm Aiming at JPEG Image
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International Conference on Information and Computing Science, ICIC
作者: Yan-Qing Liu Gui-Lian Su Department of Computer Shandong College of Electronic Technology Jinan China Department of Computer Science and Technology Shandong Agricultural Administrators College Jinan China
This algorithm is specially aimed at steganalytic algorithm of JPEG image and used to detect whether hidden information exists in it. According to the structural feature of JPEG image and through analyzing the DCT coe... 详细信息
来源: 评论