In Embedded Zero-trees Wavelet Compression, there exist two problems, i.e. multi-scanning of wavelet coefficients and redundancy in the binary code. Considering it, this paper presents Improved EZW image Coding Algori...
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ISBN:
(纸本)981238961X
In Embedded Zero-trees Wavelet Compression, there exist two problems, i.e. multi-scanning of wavelet coefficients and redundancy in the binary code. Considering it, this paper presents Improved EZW image Coding Algorithm Based on zero-tree Index. The algorithm builds a new strategy with a from the bottom up scanning path by introducing the concept of zero-tree index, which reduces the times of repeated scanning and simplifies the computational complexity. We facilitate successive exclude scanning to get rid of the position information redundancy. As for the amplitudes of significant coefficients, we use multi-threshold to optimize the process of SAQ according to HVS, and consequently enhances the coding strategy.
Unmanned Aerial Vehicle(UAV)tracking has been possible because of the growth of intelligent information technology in smart cities,making it simple to gather data at any time by dynamically monitoring events,people,th...
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Unmanned Aerial Vehicle(UAV)tracking has been possible because of the growth of intelligent information technology in smart cities,making it simple to gather data at any time by dynamically monitoring events,people,the environment,and other aspects in the *** traditional filter creates a model to address the boundary effect and time filter degradation issues in UAV tracking *** these methods ignore the loss of data integrity terms since they are overly dependent on numerous explicit previous regularization *** light of the aforementioned issues,this work suggests a dual-domain Jensen-Shannon divergence correlation filter(DJSCF)model address the probability-based distance measuring issue in the event of filter *** two-domain weighting matrix and JS divergence constraint are combined to lessen the impact of sample imbalance and *** new tracking models that are based on the perspectives of the actual probability filter distribution and observation probability filter distribution are proposed to translate the statistical distance in the online tracking model into response *** model is roughly transformed into a linear equality constraint issue in the iterative solution,which is then solved by the alternate direction multiplier method(ADMM).The usefulness and superiority of the suggested strategy have been shown by a vast number of experimental findings.
Performance of digital watermarking depends on the parameters of embedding algorithm. Most algorithms cannot give the quantitative relationship between embedding parameters and its performance. This paper proposes a n...
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ISBN:
(纸本)981238961X
Performance of digital watermarking depends on the parameters of embedding algorithm. Most algorithms cannot give the quantitative relationship between embedding parameters and its performance. This paper proposes a new algorithm of bind digital audio watermarking based on SCS. This algorithm can design the embedding parameters according to the requirement. The paper adds the watermark in wavelet domain and compares its performance with that in time domain against attacks of additive noise, mp3 compression and resample. Computer simulation proves that this algorithm is effective and stable.
Efficient video transmission over unreliable channels may encounter huge challenge due to unavoidable bit error or packets loss. Error concealment (EC) techniques at the decoder side have been developed to recover the...
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This paper proposes a novel global stereo matching method using aggregated likelihoods and multi-scale priors. The likelihoods of dense stereo correspondences as data term can be robustly expressed by aggregated match...
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In distributed video coding (DVC), efficient compression is achieved by exploiting source statistics at the decoder only, which is radically different from conventional video coding. The pixel-domain Wyner-Ziv video c...
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ISBN:
(纸本)300018726X
In distributed video coding (DVC), efficient compression is achieved by exploiting source statistics at the decoder only, which is radically different from conventional video coding. The pixel-domain Wyner-Ziv video coding is a kind of typical distributed video coding scheme, in which the encoder can be very simple and the complexity of the coder is transferred to the decoder. The performance of pixel-domain Wyner-Ziv video codec is greatly dependent on quality of side information and reconstruction arithmetic. In this paper we propose an improved method of pixel-domain Wyner-Ziv video coding based on side information estimate and decoding reconstruction at the decoder. The results of simulation tests show that better visual quality and average 1.5dB gain can be achieved by applying the proposed method.
This paper proposes a robust piecewise planar multiview stereo (MVS) approach specifically designed for urban scenes. These architectural scenes are problematic for traditional computer vision methods. In our work, we...
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“Signal Conditioning” is a comprehensive introduction to electronic signal processing. The book presents the mathematical basics including the implications of various transformed domain representations in signal syn...
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ISBN:
(数字)9783642288180
ISBN:
(纸本)9783642282744;9783642441882
“Signal Conditioning” is a comprehensive introduction to electronic signal processing. The book presents the mathematical basics including the implications of various transformed domain representations in signal synthesis and analysis in an understandable and lucid fashion and illustrates the theory through many applications and examples from communication systems. The ease to learn is supported by well-chosen exercises which give readers the flavor of the subject. Supplementary electronic material is available on http://*** including MATlab codes illuminating applications in the domain of one dimensional electrical signal processing, imageprocessing, and speech processing. The book is an introduction for students with a basic understanding in engineering or natural sciences.
When people take photos through a transparent surface, it is ubiquitous that the images are superimposed with two source images, the transmitted layer and the reflected layer. In this paper, we utilize the sparsity pr...
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To regulate the transmit-power and enhance the total throughput, a novel Transmit Power Control Game (TPCG) algorithm and an adaptive Modulation TPCG (M-TPCG) algorithm which combine bandwidth allocation, adaptive mod...
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To regulate the transmit-power and enhance the total throughput, a novel Transmit Power Control Game (TPCG) algorithm and an adaptive Modulation TPCG (M-TPCG) algorithm which combine bandwidth allocation, adaptive modulation and transmit-power control based on Space Time Block Coding (STBC) OFDM-CDMA system are designed and a cross-layer framework of database sharing is proposed. Simulation results show that the TPCG algorithm can regulate their transmitter powers and enhance the total throughput effectively, M-TPCG algorithm can achieve maximal system throughput. The performance of the cognitive radio system is improved obviously.
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