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【Special Effects】 A.Blind.and.Robust.Watermarking.Scheme DL : 0: Abstract- H.264/AVC is becoming a popular video codec for its better compression ratio, lower distortion and applicability to portable electronic devices. Thus, issues of copyright protection appropriate for this standard become very important. In this paper, a new blind SVD (Singular Value Decomposition) - DCT combined video watermarking scheme for the ".264 standard is proposed. The proposed method is a blind watermarking algorithm as the hidden information can be extracted without the original video and the original singular values. To reduce visual quality degradation caused by coefficients modifying, the perceptual model and block selection mechanism are introduced to control the modification strength. The performance of the proposed algorithm is evaluated with respect to imperceptibility, robustness and data payload. Experimental results reveal that the proposed scheme achieves enough robustness while preserving the perceptual quality.-Abstract- H.264/AVC is becoming a popular video codec for its better compression ratio, lower distortion and applicability to portable electronic devices. Thus, issues of copyright protection appropriate for this standard become very important. In this paper, a new blind SVD (Singular Value Decomposition)- DCT combined video watermarking scheme for the ".264 standard is proposed. The proposed method is a blind watermarking algorithm as the hidden information can be extracted without the original video and the original singular values. To reduce visual quality degradation caused by coefficients modifying, the perceptual model and block selection mechanism are introduced to control the modification strength. The performance of the proposed algorithm is evaluated with respect to imperceptibility, robustness and data payload. Experimental results reveal that the proposed scheme achieves enough robustness while preserving the perceptual quality.
Update : 2024-05-19 Size : 486400 Publisher : lie
【Special Effects】 A.Blind.MPEG-2.Video.Watermarking.Robust.to.Regula DL : 0: Abstract—Based on the observation that low-frequency DCT coefficients of an image are less affected by geometric processing, we propose a new blind MPEG-2 video watermarking algorithm robust to camcorder recording. Both the embedding and extraction of the watermarks are done in the compressed domain. The mean of the low-frequency DCT coefficients of the video is temporally modulated according to the information bits. To reduce complexity, we embed watermark in the prediction error signals of the B-frames. Experimental results show that the proposed scheme achieves high video quality and robustness to camcorder recording, trans-coding, frame-rate conversion, and geometric attacks on common test videos.
Update : 2024-05-19 Size : 136192 Publisher : lie
【2D Graphic】 ProjectiveDeblur DL : 1: 图像的非一致模糊，非盲目反卷积，C++源码-Non-uniform blurred images of non-Blind Deconvolution
Update : 2024-05-19 Size : 2816000 Publisher : xuyq
【SCM】 Equalization_Tutorial DL : 0: Adaptive equalization教程-Adaptive equalizers compensate for signal distortion attributed to intersymbol interference (ISI), which is caused by multipath within time-dispersive channels. 􀂃 Typically employed in high-speed communication systems, which do not use differential modulation schemes or frequency division multiplexing 􀂃 The equalizer is the most expensive component of a data demodulator and can consume over 80 of the total computations needed to demodulate a given signal [01] Adaptive Equalization KEVIN BANOVIC Slide 3 RESEARCH CENTRE FOR INTEGRATED MICROSYSTEMS – UNIVERSITY OF WINDSOR EQUALIZATION TUTORIAL Channel Equalizer Adjustment FIR Equalizer Decision Device Error Computation s k ( ) y k ( ) e k ( ) r k ( ) s k ( ) Training Sequence Symbol Statistics Blind Mode Decision-Directed Mode Training Mode Adaptive Equalization
Update : 2024-05-19 Size : 404480 Publisher : 陈鹏
【RFID】 Design-of-an-RFiD-ZigBee-Network-for-Blind-Naviga DL : 0: The project aims to provide a robust hardware solution towards blind navigation in mass-transit, crowded public transportation systems (airports, bus stations, railways, etc.). The IEEE 802.15.4/Zigbee based transceiver and RFID tags would be used to incorporate this wireless network solution. The three distinct phases of the project are – Design of a passive RFID tag Design of a Zigbee transceiver and Design of the dual-standard RFID/Zigbee based transceiver.-The project aims to provide a robust hardware solution towards blind navigation in mass-transit, crowded public transportation systems (airports, bus stations, railways, etc.). The IEEE 802.15.4/Zigbee based transceiver and RFID tags would be used to incorporate this wireless network solution. The three distinct phases of the project are – Design of a passive RFID tag Design of a Zigbee transceiver and Design of the dual-standard RFID/Zigbee based transceiver.
Update : 2024-05-19 Size : 107520 Publisher : bb
【AI-NN-PR】 blind-signal-processe DL : 0: 人工神经网络与盲信号处理Artificial Neural Networks and blind signal processing，经典好书-Artificial Neural Network and Blind Signal Processing Artificial Neural Networks and blind signal processing, classical books
Update : 2024-05-19 Size : 10112000 Publisher : lbp
【matlab】 CMA_Equ DL : 0: CMA算法均衡器的MATLAB源代码。CMA算法是是Bussgang类盲均衡算法中最常用的一种。-CMA algorithm equalizer MATLAB source code. CMA algorithm Yes Yes Bussgang type blind equalization algorithm most commonly used.
Update : 2024-05-19 Size : 3072 Publisher : 罗
【matlab】 blind-single-sapration DL : 0: 分离不同频率的五个信号源，采用自然梯度算法-Natural gradient algorithm for blind signal separation
Update : 2024-05-19 Size : 1024 Publisher : belinda
【JSP/Java】 BLIND-2-PC DL : 0: this v good project for the blind to interact with the pc with usng text to speech conversion-this is v good project for the blind to interact with the pc with usng text to speech conversion
Update : 2024-05-19 Size : 56320 Publisher : akhilesh
【Graph Recognize】 Matlab-Blind-signal-separation DL : 0: 盲源分离问题的matlab程序，采用ICA方法-Matlab problem of blind source separation program, the use of ICA methods
Update : 2024-05-19 Size : 11381760 Publisher : 洛龙行
【3G develop】 blind_channel_estimation_STBC DL : 0: Blind Channel Estimation
Update : 2024-05-19 Size : 14336 Publisher : liugejie
【Windows Develop】 blind-signal-separation DL : 0: Blind Signal Separation is the task of separating signals when only their mixtures are ob- served. Recently, Independent Component Analysis has become a favourite method of re- searchers for attacking this problem.-Blind Signal Separation is the task of separating signals when only their mixtures are ob- served. Recently, Independent Component Analysis has become a favourite method of re- searchers for attacking this problem.
Update : 2024-05-19 Size : 4137984 Publisher : liu
【matlab】 blind-source-separation DL : 0: 瞬时盲源分离源代码 Instan eous blind source separation-Instantaneous blind source separation
Update : 2024-05-19 Size : 2048 Publisher : iishellx
【matlab】 Blind-deconvolution DL : 1: 模糊图像处理盲解卷处理模糊图像 matlab程序-Blind deconvolution
Update : 2024-05-19 Size : 5120 Publisher : wain
【matlab】 cma DL : 0: CMA 盲均衡算法代码采用QAM调制信号-CMA，blind equalizer with QAM
Update : 2024-05-19 Size : 1024 Publisher : leechao
【Software Engineering】 ijacspv24n6 DL : 0: This contribution considers semi-blind adaptive equalization for communication systems that employ high-throughput quadrature amplitude modulation signalling. A minimum number of training symbols, approximately equal to the dimension of the equalizer, are first utilized to provide a rough initial least-squares estimate of the equalizer’s weight vector. A novel gradient-Newton concurrent constant modulus algorithm and soft decision-directed scheme are then applied to adapt the equalizer. The proposed semi-blind adaptive algorithm is capable of converging fast and accurately to the optimal minimum mean-square error equalization solution. Simulation results obtained demonstrate that the convergence speed of this semi-blind adaptive algorithm is close to that of the training-based recursive least-square algorithm
Update : 2024-05-19 Size : 185344 Publisher : yh
【Program doc】 Blind DL : 0: 张丽清教授的盲源分离讲义，一个会议下载的。有参考价值-Blind Source Separation of Pro. ZHANG liqing
Update : 2024-05-19 Size : 1169408 Publisher : ma ming
【matlab】 the-blind-channel DL : 1: 多径信道中盲信道均衡的恒模算法，从恒模代价函数出发详细推导出盲信道均衡恒模算法-Multipath channel, blind channel equalization of constant modulus algorithm, starting from the constant modulus cost function derived in detail the blind channel equalization constant modulus algorithm
Update : 2024-05-19 Size : 1024 Publisher : 青紫
【Software Engineering】 Blind-Spot-Object-Detection-Systems DL : 0: blind spot object detection system
Update : 2024-05-19 Size : 461824 Publisher : kotakungu
【Communication-Mobile】 QAM DL : 1: 重点研究了全数字QAM接收机中的两个关键技术——符号同步和信道盲均衡。研究Gardner定时误差检测算法，盲均衡方面，重点研究了CMA及其改进算法，采用MMA算法和DD-LMS算法联合均衡-Focuses on the all-digital QAM receiver in the two key technologies- the symbol synchronization and channel blind equalization. Research Gardner timing error detection algorithm, blind equalization, the focus of the CMA and its improved algorithm, using the MMA algorithm and the DD-LMS algorithm for joint equalization
Update : 2024-05-19 Size : 2300928 Publisher : 丁建

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