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检索条件"主题词=Image and video coding"
281 条 记 录,以下是221-230 订阅
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Direct 3D lossless image compression based on region growing
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ELECTRONICS LETTERS 2000年 第3期36卷 207-208页
作者: Wu, D Tan, EC Nanyang Technol Univ Sch Appl Sci Singapore 639798 Singapore
A segmentation-based 3D lossless compression method that exploits the dependencies in all three dimensions of volumetric images is proposed.
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Segmentation and tracking of moving objects for content-based video coding
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IEE PROCEEDINGS-VISION image AND SIGNAL PROCESSING 1999年 第3期146卷 144-150页
作者: Meier, T Ngan, KN Univ Western Australia Dept Elect & Elect Engn Visual Commun Res Grp Perth WA 6907 Australia
To enable content-based functionalities in video coding, a decomposition of the scene into physical objects is required. Such objects are normally not characterised by homogeneous colour, intensity, or optical flow Th... 详细信息
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Progressive content access to databases of JPEG-compressed images
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IET image PROCESSING 2007年 第2期1卷 207-214页
作者: Jiang, J. Feng, G. Yin, Y. Univ Bradford Dept Elect Imaging & Media Commun Bradford BD7 1DP W Yorkshire England Chongqing Univ Chongqing 700332 Peoples R China
Progressive content access provides a mode that allows a coarse version of an image being viewed at a lower computing cost and then gradually refined by subsequent resolution enhancement if required. This proves extre... 详细信息
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Keypoint based comprehensive copy-move forgery detection
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IET image PROCESSING 2021年 第6期15卷 1298-1309页
作者: Diwan, Anjali Sharma, Rajat Roy, Anil K. Mitra, Suman K. DA IICT Gandhinagar 382007 Gujarat India
Verifying the authenticity of a digital image has been challenging problem. The simplest of the image tampering tricks is the copy-move forgery. In copy-move forgery copied portion of the image is pasted on another pa... 详细信息
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Sparse representation based intraframe and semi-intraframe video coding schemes for low bitrates
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IET image PROCESSING 2021年 第5期15卷 1128-1143页
作者: Irannejad, Maziar Mahdavi-Nasab, Homayoun Islamic Azad Univ Digital Proc & Machine Vis Res Ctr Najafabad Branch Najafabad Iran Islamic Azad Univ Dept Elect Engn Najafabad Branch Najafabad Iran
This paper proposes some extensions of the successful sparse coding of still images to intraframe and semi-intraframe video coding. The presented frameworks apply the efficient K-singular value decomposition and recur... 详细信息
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Quality-of-service management for broadband residential video services
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ELECTRONICS & COMMUNICATION ENGINEERING JOURNAL 2001年 第6期13卷 265-275页
作者: Green, RJ Woolley, SI Garnham, NW Jones, KP Fujitsu Telecommun Europe Ltd Birmingham B37 7YU W Midlands England Univ Birmingham Sch Elect & Elect Engn Birmingham B15 2TT W Midlands England
This paper introduces an approach to managing quality-of-service (QoS) for a residential video-on-demand (VoD) service employing MPEG-2 transport streams using an experimental asynchronous transfer mode (ATM)/asymmetr... 详细信息
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Exploiting texture characteristics and spatial correlations for robustness metric of data hiding with noisy transmission
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IET image PROCESSING 2021年 第13期15卷 3160-3171页
作者: Chen, Yanli Wang, Hongxia Wu, Hanzhou Zhou, Yonghui Zhou, Limengnan Chen, Yi Guizhou Normal Univ Sch Big Data & Comp Sci Guiyang Guizhou Peoples R China Sichuan Univ Sch Cyber Sci & Engn Chengdu 610065 Peoples R China Shanghai Univ Sch Commun & Informat Engn Shanghai Peoples R China Univ Elect Sci & Technol China Zhongshan Inst Sch Elect & Informat Engn Zhongshan Guangdong Peoples R China Southwest Jiaotong Univ Sch Informat Sci & Technol Chengdu Sichuan Peoples R China
Data hiding aims to embed a secret message into a digital object such as image by slightly modifying the object content without arousing noticeable artefacts. The resultant object containing hidden information will be... 详细信息
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Combined significance map coding for still image compression
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IET image PROCESSING 2011年 第1期5卷 55-62页
作者: Wang, Y-L. Wang, J. -X. Su, A. W. Y. Natl Cheng Kung Univ Dept CSIE Tainan 70101 Taiwan
Set partitioning in hierarchical trees (SPIHT) was known for its relatively simple implementation and flexible scalability when it is combined with discrete wavelet transform (DWT). The authors propose a method called... 详细信息
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Fast encoding method for vector quantisation of images using subvector characteristics and Hadamard transform
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IET image PROCESSING 2011年 第1期5卷 18-24页
作者: Chen, S. X. Li, F. W. Chongqing Univ Posts & Telecommun Commun & Informat Engn Coll Chongqing 400056 Peoples R China
In a framework of vector quantisation (VQ), the encoding speed is a key issue for its practical applications. To speed up the VQ encoding process, a fast encoding method in the Hadamard transform domain is presented. ... 详细信息
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General methods for L/M-fold resizing of compressed images using lapped transforms
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IET image PROCESSING 2007年 第3期1卷 295-303页
作者: Lee, C. W. Catholic Univ Korea Sch Informat Commun & Elect Engn Bucheon 420743 Kyunggi Do South Korea
Two general methods are proposed for the arbitrary L/M-fold resizing of compressed images using lapped transforms. These methods provide general resizing frameworks in the transform domain. In order to analyse the ima... 详细信息
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