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检索条件"任意字段=MIPPR 2007: Multispectral Image Processing"

共 197 条记录，以下是11-20 订阅

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image fusion algorithm using nonsubsampled contourlet transform

Image fusion algorithm using nonsubsampled contourlet transf...

引用

mippr 2007: multispectral image processing

作者： Yang, Xiao Zhiguo, Cao Kai, Wang Zhengxiang, Xu Institute of Pattern Recognition and Artificial Intelligence State Education Commission Key Laboratory for Image Processing and Intelligent Control Huazhong Uni. of Sci. and Tech. Wuhan 430074 China

ISBN: (纸本)9780819469519

In this paper, a pixel-level image fusion algorithm based on Nonsubsampled Contourlet Transform (NSCT) has been proposed. Compared with Contourlet Transform, NSCT is redundant, shift-invariant and more suitable for image fusion. Each image from different sensors could be decomposed into a low frequency image and a series of high frequency images of different directions by multi-sacle NSCT. For low and high frequency images, they are fused based on local-contrast enhancement and definition respectively. Finally, fused image is reconstructed from low and high frequency fused images. Experiment demonstrates that NSCT could preserve edge significantly and the fusion rule based on region segmentation performances well in local-contrast enhancement.

关键词： image fusion

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Self-adaptive evolutionary algorithm for multispectral remote sensing image clustering

Self-adaptive evolutionary algorithm for multispectral remot...

引用

5th International Symposium on multispectral image processing and Pattern Recognition

作者： Chang, Dongxia Zhang, Xianda Zheng, Changwen Tsinghua Univ Dept Automat Beijing 100084 Peoples R China Chinese Acad Sci Inst Software Natl Key Lab Integrated Informat Syst Technol Beijing 100080 Peoples R China

ISBN: (纸本)9780819469519

In this paper, a self-adaptive evolutionary clustering algorithm is presented. This algorithm uses the evolutionary programming (EP) to search the optimal clustering and bases on the principles of the K-means algorithm. The proposed self-adaptive evolutionary (SAEP) clustering algorithm self-adapts the vector of the step size appropriate for each parent. This is different from other genetic-based algorithms. The algorithm can minimize the degeneracy in the evolutionary process. The experimental results show that the KSAE clustering algorithm is efficient in the unsupervised classification of the multispectral remote sensing image.

关键词： self-adaptive evolutionary programming K-means algorithm multispectral remote sensing image

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Parallel processing for fusing SPOT5 satellite images

Parallel processing for fusing SPOT5 satellite images

引用

mippr 2007: Remote Sensing and GIS Data processing and Applications;and Innovative multispectral Technology and Applications

作者： Ai, Haibin Zhang, Jianqing Zhang, Yong School of Remote Sensing and Information Engineering Wuhan University Wuhan 30079 China Supresoft Inc. Wuhan 30074 China

ISBN: (纸本)9780819469540

Based on the FFT-enhanced IHS transform method a modified fusion method for SPOT5 images is proposed. Because of demanding computation in image fusion a combination of pipeline parallelism and data parallelism is applied in practice. Experimental results indicate that the spectral effect of fused images is good and distributed parallel processing solves the problem of demanding computation in fused images.

关键词： image fusion

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Evaluation of edge detection for panchromatic remote sensing image based on ROC curve

Evaluation of edge detection for panchromatic remote sensing...

引用

mippr 2007: Remote Sensing and GIS Data processing and Applications;and Innovative multispectral Technology and Applications

作者： Man, Peng Shanshan, Li Department of Resource and Environment Engineering Anhui University of Science and Technology Huainan 232001 China

ISBN: (纸本)9780819469540

ROC (Receiver Operating Characteristic) analysis has been widely used to evaluate detection performance. It solves binary hypothesis testing problems. It is difficult to get real edge of remote sensing image. As a result, they are not directly looked as hypothesis testing problem. In this paper, we first introduce a method to generate reference edge map (REM). Using two sets of synthetic image to test its robustness. Edge detectors are tested on three panchromatic remote sensing images, and then we generate test ROC curves based on REM and compute the area under the curves. Quantitative results are discussed.

关键词： Remote sensing

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Novel image fusion method using multiwavelet transform

Novel image fusion method using multiwavelet transform

引用

mippr 2007: multispectral image processing

作者： Zhihui, Wang Baojun, Zhao Tingzhi, Shen Dept. of Electronic Engineering College of Information Science and Technology Beijing Institute of Technology Beijing 100081 China Dept. of Electronic Engineering College of Science and Technology Inner Mongolia University Hohhot 010021 China

ISBN: (纸本)9780819469519

This paper studies the algorithm fusing IR/Visible images used in imaging guidance field. Firstly, the differences between IR image and Visible one are introduced curtly. Then we introduce the essential multiwavelet theory and explain the reason why we choose multiwavelet analysis as a tool fusing images. We give the framework of image fusion based on discrete multiple wavelet transform (DMWT) which core principle is still based on multiresolution analysis (MRA) and Mallat algorithm. A novel image fusion method based on multiwavelet transform and directional contrasts information is presented.

关键词： Wavelet transforms

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Implementation of aeronautic image compression technology on DSP

Implementation of aeronautic image compression technology on...

引用

mippr 2007: Remote Sensing and GIS Data processing and Applications;and Innovative multispectral Technology and Applications

作者： Yujing, Wang Xueqiang, Gao Mei, Wang Department of Computer and Information Engineering Yantai Professional Institute 264025 China Research Institute of Information Fusion Naval Aeronautical Engineering Institute 264001 China

ISBN: (纸本)9780819469540

According to the designed characteristics and demands of aeronautic image compression system, lifting scheme wavelet and SPIHT algorithm was selected as the key part of software implementation, which was introduced with details. In order to improve execution efficiency, border processing was simplified reasonably and SPIHT (Set Partitioning in Hierarchical Trees) algorithm was also modified partly. The results showed that the selected scheme has a 0.4dB improvement in PSNR(peak-peak-ratio) compared with classical Shaprio's scheme. To improve the operating speed, the hardware system was then designed based on DSP and many optimization measures were then applied successfully. Practical test showed that the system can meet the real-time demand with good quality of reconstruct image, which has been used in an aeronautic image compression system practically.

关键词： image compression

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Fast alignment of marks in COG bonding based on multi-resolution

Fast alignment of marks in COG bonding based on multi-resolu...

引用

mippr 2007: Automatic Target Recognition and image Analysis;and multispectral image Acquisition

作者： Geng, Hui Hong, Hanyu Zhang, Yan Lin, Zhimin Lab. for Image Processing and Intelligence Control Wuhan Institute of Technology Hubei 430074 China

ISBN: (纸本)9780819469502

COG (chip on glass) bonding is widely used in LCD industry. The alignment of marks in COG bonding needs high precision and reliability. It is of utmost importance to find two marks in COG fast and exactly. Its key technique is to use the advanced optical system to get the two-marked positions of chip on the glass, and to use the PLC procedure control to complete the automatic alignment. A series of experiments are performed to test the algorithms proposed, which show that the fast alignment of marks in COG bonding based on multi-resolution is both rational and highly effective.

关键词： Liquid crystal displays

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SAR image de-noising by wavelet transform based on lifting scheme

SAR image de-noising by wavelet transform based on lifting s...

引用

5th International Symposium on multispectral image processing and Pattern Recognition

作者： Ding, Xianwen Huang, Weigen State Ocean Adm Inst Oceanog 2 State Key Lab Satellite Ocean Environm Dynam Hangzhou 310012 Peoples R China

ISBN: (纸本)9780819469519

In this paper. we propose a new de-noising method by wavelet transform based on lifting scheme for the reducing of the multiplicative speckles in synthetic aperture radar (SAR) images. An ERS-2 SAR image of Hangzhou was used as a test image to compare the performance of the method with that of conventional methods. The results show that the proposed method has advantages in radiation characteristics and textual details of the image over the conventional methods.

关键词： SAR despeckle lifting scheme wavelet transform

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Fusion of multispectral and panchromatic images using improved GIHS and PCA mergers based on contourlet - art. no. 67871J

Fusion of multispectral and panchromatic images using improv...

引用

5th International Symposium on multispectral image processing and Pattern Recognition

作者： Yang, Shuyuan Zeng, Liang Jiao, Licheng Xiao, Jing Xidian Univ Inst Intelligent Informat Proc Xian 710071 Peoples R China

ISBN: (纸本)9780819469519

Since Chavez proposed the highpass filtering procedure to fuse multispectral and panchromatic images, several fusion methods have been developed based on the same principle: to extract from the panchromatic image spatial detail information to later inject it into the multispectral one. In this paper, we present new fusion alternatives based on the same concept. using the multiresolution contourlet decomposition to execute the detail extraction phase and the generalized intensity-hue-saturation (GIHS) and principal component analysis (PCA) procedures to inject the spatial detail of the panchromatic image into the multispectral one. Experimental results show the new fusion method have better performance than GIHS, PCA, wavelet and the method of improved GINS and PCA mergers based on wavelet decomposition.

关键词： contourlet transform generalized intensity-hue-saturation (GIHS) transform principal component analysis (PCA) image fusion

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Real-time detecting system for infrared small target

Real-time detecting system for infrared small target

引用

5th International Symposium on multispectral image processing and Pattern Recognition

作者： Zhang, Zhenjun Cao, Zhiguo Zhang, Tianxu Yan, Luxin Huazhong Univ Sci & Technol Inst Pattern Recognit & Artificial Intelligence Wuhan 430074 Peoples R China

ISBN: (纸本)9780819469502

The paper presents a design method for high-speed image processing system based on FPGA+DSP+ASIC structure. According to the feature of the devices, the system reconfigures the data path and distributes the algorithm flexibly among DSP, FPGA, and the ASIC. Based on the above processing elements, an infrared small target detecting parallel system is constituted, which makes better use of the advantages of DSP, FPGA and ASIC while avoiding their disadvantages. Finally, the prototype test shows good performance and can meet the expected design target related to real-time processing.

关键词： real-time processing image processing DSP FPGA ASIC

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