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浏览/检索结果: 共19条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Robust Adversarial Watermark Defending Against GAN Synthesization Attack 期刊论文  OAI收割 IEEE SIGNAL PROCESSING LETTERS, 2024, 卷号: 31, 页码: 351-355 作者:  Xu, Shengwang;  Qiao, Tong;  Xu, Ming;  Wang, Wei;  Zheng, Ning   |  收藏  |  浏览/下载：15/0  |  提交时间：2024/07/03 Watermarking  Transform coding  Generative adversarial networks  Forgery  Image coding  Discrete cosine transforms  Decoding  GAN synthesized image  adversarial watermark  JPEG compression   Learned Image Compression Using Cross-Component Attention Mechanism 期刊论文  OAI收割 IEEE TRANSACTIONS ON IMAGE PROCESSING, 2023, 卷号: 32, 页码: 5478-5493 作者:  Duan, Wenhong;  Chang, Zheng;  Jia, Chuanmin;  Wang, Shanshe;  Ma, Siwei   |  收藏  |  浏览/下载：15/0  |  提交时间：2023/12/04 Image coding  Context modeling  Transforms  Decoding  Standards  Image reconstruction  Transform coding  Image compression  cross-component  information-guided unit  attention mechanism  information-preserving   CBREN: Convolutional Neural Networks for Constant Bit Rate Video Quality Enhancement 期刊论文  OAI收割 IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, 2022, 卷号: 32, 期号: 7, 页码: 4138-4149 作者:  Zhao, Hengrun;  Zheng, Bolun;  Yuan, Shanxin;  Zhang, Hua;  Yan, Chenggang   |  收藏  |  浏览/下载：35/0  |  提交时间：2022/12/07 Image coding  Quantization (signal)  Streaming media  Bit rate  Image restoration  Transform coding  Video recording  Quality enhancement  CBR compressed video  dual-domain restoration   Predictive Generalized Graph Fourier Transform for Attribute Compression of Dynamic Point Clouds 期刊论文  OAI收割 IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, 2021, 卷号: 31, 期号: 5, 页码: 1968-1982 作者:  Xu, Yiqun;  Hu, Wei;  Wang, Shanshe;  Zhang, Xinfeng;  Wang, Shiqi   |  收藏  |  浏览/下载：45/0  |  提交时间：2021/12/01 Dynamic point clouds  attribute coding  inter-coding  generalized graph Fourier transform   Orthogonal sparse fractal coding algorithm based on image texture feature 期刊论文  OAI收割 IET IMAGE PROCESSING, 2019, 卷号: 13, 期号: 11, 页码: 1872-1879 作者:  Cao, Jian;  Zhang, Aihua;  Shi, Lei   |  收藏  |  浏览/下载：224/0  |  提交时间：2019/10/11 image coding  feature extraction  fractals  data compression  image texture  image reconstruction  orthogonal codes  image colour analysis  transforms  decomposition  matrix algebra  orthogonal sparse grey level  sparse decomposition  decoding speed  orthogonal sparse fractal coding algorithm  image reconstruction quality  image texture feature extraction  fractal image compression coding algorithm  grey description feature extraction  orthogonal sparse grey level transform   From Heuristic Optimization to Dictionary Learning: A Review and Comprehensive Comparison of Image Denoising Algorithms 期刊论文  OAI收割 ieee transactions on cybernetics, 2014, 卷号: 44, 期号: 7, 页码: 1001-1013 作者:  Shao, Ling;  Yan, Ruomei;  Li, Xuelong;  Liu, Yan 收藏  |  浏览/下载：58/0  |  提交时间：2015/03/18 Adaptive filters  dictionary learning  evaluation  image denoising  sparse coding  spatial domain  survey  transform domain   Rate pre-allocated compression for mapping image based on wavelet and rate-distortion theory 期刊论文  OAI收割 OPTIK, 2013, 卷号: 124, 期号: 14, 页码: 1836-1840 作者:  Li, Qihu;  Ren, Guoqiang;  Wu, Qinzhang;  Zhang, Xianyu 收藏  |  浏览/下载：25/0  |  提交时间：2015/04/17 Integer wavelet transform  Bit rate pre-allocated  Image coding  FPGA  Multiple DSP   Image coding using wavelet-based compressive sampling (EI CONFERENCE) 会议论文  OAI收割 2012 5th International Symposium on Computational Intelligence and Design, ISCID 2012, October 28, 2012 - October 29, 2012, Hangzhou, China 作者:  Li J.;  Li J.;  Li J. 收藏  |  浏览/下载：43/0  |  提交时间：2013/03/25 In this paper  we proposed a novel coding scheme is proposed using wavelet-based CS framework for nature image. First  two-dimension discrete wavelet transform (DWT) is applied to a nature image for sparse representation. After multi-scale DWT  the low-frequency sub-band and high-frequency sub-bands are re-sampled separately. According to the statistical dependences among DWT coefficients  we allocate different measurements to low- and high-frequency component. Then  the measurements samples can be quantized. The quantize samples are entropy coded and forward correct coding (FEC). Finally  the compressed streams are transmitted. At the decoder  one can simply reconstruct the image via l1 minimization. Experimental results show that the proposed wavelet-based CS scheme achieves better compression performance against the relevant existing solutions.   Novel intra prediction via position-dependent filtering 期刊论文  OAI收割 JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION, 2011, 卷号: 22, 期号: 8, 页码: 687-696 作者:  Zhang, Li;  Zhao, Xin;  Ma, Siwei;  Wang, Qiang;  Gao, Wen   |  收藏  |  浏览/下载：31/0  |  提交时间：2019/12/16 H.264  Image coding  Intra prediction  Interpolation filtering  Least square method  Mode-dependent directional transform (MDDT)  KTA  Singular value decomposition   Image compression based on contourlet and no lists SPIHT (EI CONFERENCE) 会议论文  OAI收割 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China 作者:  Zhang S. 收藏  |  浏览/下载：45/0  |  提交时间：2013/03/25 The volume of raw image data captured by the high resolution camera is extremely huge. Thus the efficient image compression method should be used to decrease the bit rate. The image compression method based on wavelet is used more widely nowadays. However  two dimensional wavelet is only the tensor product of the one dimensional wavelet whose support region of basis function is extended from interval to square. Contourlet is an image multiscale geometric analysis tool  which could represent image sparsely and has strong capability of nonlinear approximation. The basis function of contourlet is multidirectional and anisotropic. Nevertheless  contourlet is redundant. So the non-redundant Wavelet Based Contourlet Transform (WBCT) is used in this paper. The SPIHT algorithm is very efficient way to coding the significant coefficients. And the improved no lists SPIHT is more easy to implemented by hardware. Image compression method based on the combination of both wavelet based contourlet transform and no lists SPIHT coding is proposed in the paper. Experiment shows that compared to wavelet based scheme the contourlet scheme can reserve the texture of the image. For barbara test image when coding at low bit rate the PSNR can improve about 0.2dB. 2010 IEEE.