中国科学院机构知识库网格系统: 检索

Range-Adaptive Value Representation in Different Stages of Schizophrenia: A Proof of Concept Study 期刊论文 OAI收割
SCHIZOPHRENIA BULLETIN, 2021, 卷号: 47, 期号: 6, 页码: 1524-1533
作者: Wang, Ling-Ling; Lam, Christina Y. T.; Huang, Jia; Cheung, Eric F. C.; Lui, Simon S. Y.

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收藏 | 浏览/下载：49/0 | 提交时间：2021/12/27

range adaptive coding range adaptation value representation amotivation schizophrenia

An initial-boundary value problem for the general three-component nonlinear Schrodinger equations on a finite interval 期刊论文 OAI收割
IMA JOURNAL OF APPLIED MATHEMATICS, 2021, 卷号: 86, 期号: 3, 页码: 427-489
作者: Yan, Zhenya

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收藏 | 浏览/下载：36/0 | 提交时间：2021/10/26

general three-component nonlinear Schrodinger equations initial-boundary value problem inverse scattering Riemann-Hilbert problem global relation Dirichlet and Neumann problems Gel'fand-Levitan-Marchenko representation

Infrared and visual image fusion using LNSST and an adaptive dual-channel PCNN with triple-linking strength 期刊论文 OAI收割
Neurocomputing, 2018, 卷号: 310, 页码: 135-147
作者: Cheng, B. Y.; Jin, L. X.; Li, G. N.

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收藏 | 浏览/下载：33/0 | 提交时间：2019/09/17

LNSST ATD-PCNN Image fusion Singular value decomposition Auxiliary linking strength Triple-linking strength sparse representation shearlet transform multi-focus feature-extraction neural-network domain algorithm decomposition Computer Science

Local variance based color image quality assessment method (EI CONFERENCE) 会议论文 OAI收割
2011 2nd International Conference on Advanced Measurement and Test, AMT 2011, June 24, 2011 - June 26, 2011, Nanchang, China
作者: Wang Y.; Wang Y.; Wang Y.; Wang Y.; Wang Y.

收藏 | 浏览/下载：31/0 | 提交时间：2013/03/25

In this paper local variance is used to describe the structural information of a color image in order to assess its quality. The representation method is different from conventional models in that some information that is sensitive to human eyes is enhanced by using local variance distribution. It encodes the local variance distribution of different channels of a color image into the three imaginary parts of a quaternion. The distance between the singular value feature vectors of the source image block and the distorted image block which are described by quaternion matrices is calculated. The experimental results show that the assessment results of the proposed assessment method are more consistent with the Human Visual System than those of the conventional assessment methods.

Color image quality assessment based on quaternion representation for the local variance distribution of RGB Channels (EI CONFERENCE) 会议论文 OAI收割
2009 2nd International Congress on Image and Signal Processing, CISP'09, October 17, 2009 - October 19, 2009, Tianjin, China
Yuqing W.; Ming Z.

收藏 | 浏览/下载：26/0 | 提交时间：2013/03/25

In this paper Quaternions are used to describe the structural information of a color image in order to assess its quality. The representation method is different from conventional models in that some information that is sensitive to human eyes is reinforced by using local variance. It encodes the local variance distribution of the RGB channels of a color image into the three imaginary parts of a quaternion. The luminance layer of the color image is taken as the real part of the quaternion. The distance between the singular value feature vectors of the source image block and the distorted image block which are described by quaternion matrices is calculated. The final assessment result is calculated by using the mid point of the distances. The experimental results show that the assessment results of the proposed assessment method are more consistent with the Human Visual System than those of the conventional assessment methods. 2009 IEEE.

Assessment of color image fusion algorithms based on quaternion singular value decomposition (EI CONFERENCE) 会议论文 OAI收割
MIPPR 2009 - Remote Sensing and GIS Data Processing and Other Applications: 6th International Symposium on Multispectral Image Processing and Pattern Recognition, October 30, 2009 - November 1, 2009, Yichang, China
作者: Wang Y.; Wang Y.; Wang Y.; Wang Y.; Wang Y.

收藏 | 浏览/下载：26/0 | 提交时间：2013/03/25

In this paper a new approach to objectively assess the performance of image fusion algorithms is proposed. It is based on the quaternion representation for the structural information of color images. Quaternions are used to encode the pixels of a color image into a quaternion matrix. Local variance of the luminance layer of color image is taken as the real part of a quaternion then the three RGB channels of the color image are encoded into the three imaginary parts of the quaternion. The angle between the singular value feature vectors of the quaternion matrices corresponding to the source image and the fused image is used to measure the structural similarity of them. Different weight is given to the source images by using variance. The experiment results show that the proposed assessment method is consistent with the HVS. The color information of a color image can be fully used by this method. It can give an accurate assessment result for each fusion algorithm by using the source images and the fused image. 2009 Copyright SPIE - The International Society for Optical Engineering.

Mental imagery knowledge representation mode of human-level intelligence system (EI CONFERENCE) 会议论文 OAI收割
4th International Conference on Rough Sets and Knowledge Technology, RSKT 2009, July 14, 2009 - July 16, 2009, Gold Coast, QLD, Australia
作者: Zhang D.; Zhang D.

收藏 | 浏览/下载：32/0 | 提交时间：2013/03/25

For the human-level intelligence simulation we should simulate it from the essence of intelligence and with the research results of brain science cognitive science artificial intelligence and others. In our study a mental imagery knowledge representation mode had been established based on cognitive mechanism of human. Two kinds of table named mental imagery concept attributes table and concept attribute value ranges table had been used together to represent mental imagery knowledge in system. Mental imagery concept attributes table which formed by the thought of concept lattice was used to decide relations among concepts and attributes under the circumstance of coarse granularity. While concept attribute value ranges table was used to record differences of individual objects belong to the same concept under the circumstance of fine granularity. The concrete structured method of tables and decision-making process of system were described in the paper. Finally the validity and feasibility of the knowledge representation mode are illustrated with real examples. 2009 Springer Berlin Heidelberg.

Model Transduction with Mean-value Shape Representation 会议论文 OAI收割
Computer Graphics International (CGI 2008), Istanbul, Turkey, 2008
作者: Huai-Yu Wu; Chunhong Pan; Qing Yang; Hong-Xia Wang; Songde MA

收藏 | 浏览/下载：23/0 | 提交时间：2016/10/20

Model Transduction with Mean-value Shape Representation

Aerial image blurring caused by image motion and its restoration using wavelet transform (EI CONFERENCE) 会议论文 OAI收割
Electronic Imaging and Multimedia Technology IV, November 8, 2004 - November 11, 2004, Beijing, China
作者: Liu G.

收藏 | 浏览/下载：37/0 | 提交时间：2013/03/25

A wavelet-based approach of aerial blurred image restoration is proposed in this article. Image motion is inevitable in photographing for aerospace camera. Though some Image Motion Compensation(IMC) schemes are applied in aerial imaging system the ultimate image will be blurred in certain extent for the existence of IMC residual error while the forward image motion is the key element among all image motions which lead to image blurring. First the course of blurring caused by forward image motion is expressed using wavelet transform and a multiresolution sparse matrix representation of the degeneration model is obtained according to the wavelet transform. Subsequently a regularizing restoration algorithm is deduced from it and which can smoothly restraint the processed result efficiently. In the end the proposed approach is tested in MATLAB. The blurred image is restored using above-mentioned wavelet algorithm conventional contrary filter and Wiener filter algorithm separately. The conclusion that the wavelet-based restoration algorithm is superior to other two approaches is obtained by comparing the restored image's value of mean gradient. The calculating quantity of the wavelet-based blurred image restoration approach isn't large and it has good practicability in the field of image interpretation and aerial survey or drawing.

Prefactor-free forward-backward semiclassical dynamics 期刊论文 OAI收割
JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY, 2003, 卷号: 2, 期号: 3, 页码: 419-437
作者: Yan, YA; Shao, J

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收藏 | 浏览/下载：19/0 | 提交时间：2019/04/09

Semiclassical Approximation Van Vleck Propagator Initial Value Representation Herman-kluk Propagator Forward-backward Semiclassical Dynamics