中国科学院机构知识库网格系统: 检索

Sensory context influence on first-order orientation perception 会议论文 OAI收割
曲阜, 2017.7.1
作者: Jinfeng Huanga; Tzvetomir Tzvetanova; Tzvetomir Tzvetanov

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收藏 | 浏览/下载：38/0 | 提交时间：2017/12/26

orientation information first-order second-order model spatial context

Estimation of fiber orientations using neighborhood information 期刊论文 OAI收割
Medical Image Analysis, 2016, 期号: 32, 页码: 243-256
作者: Ye, Chuyang; Zhuo, Jiachen; Gullapalli, Rao; Prince, Jerry

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收藏 | 浏览/下载：38/0 | 提交时间：2016/10/13

Diffusion Mri Fiber Orientation Estimation Neighborhood Information

The Impact of Plan Form of Circulation Systems in Large-Scale Environments on Space Cognition: Case Study in Two Shopping Malls in China 会议论文 OAI收割
Singapore, SINGAPORE, DEC 06-09, 2015
作者: Zhao, R (Zhao, R.); Li, X (Li, X.); Chen, YW (Chen, Y. W.)

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收藏 | 浏览/下载：20/0 | 提交时间：2018/09/13

Plan Form Of Circulation System Cognitive Sketch-map Spatial Information Processing Spatial Orientation Spatial Cognition

Accurate matching method of multimodal image based on phase congruency and local mutual information 会议论文 OAI收割
International Symposium on Optoelectronic Technology and Application 2014, Beijing, China, May 13-15, 2014
作者: Zhao CY(赵春阳); Zhao HC(赵怀慈); Zhao G(赵刚)

收藏 | 浏览/下载：39/0 | 提交时间：2014/12/29

Multimodal Image Matching Monogenic Phase Congruency Edge Orientation Histogram Multi Candidate Point Matching Normalized Mutual Information

A 3D non-linear orientation prediction wavelet transform for interference hyperspectral images compression 期刊论文 OAI收割
optics communications, 2011, 卷号: 284, 期号: 7, 页码: 1770-1777
作者: Wen, Jia; Ma, Caiwen; Shui, Penglang

收藏 | 浏览/下载：60/0 | 提交时间：2011/10/08

Optics information Spectrum compression Orientation prediction-based wavelet transform Interference hyperspectral image

文本图像过滤关键技术研究 学位论文 OAI收割
工学博士, 中国科学院自动化研究所: 中国科学院研究生院, 2009
作者: 姚金良

收藏 | 浏览/下载：46/0 | 提交时间：2015/09/02

信息过滤文本定位文本抽取主题识别倾向性分析 Information filtering Text region detection Text extraction Topic identification Semantic orientation analysis

Study on technology of orientation and north-finding based on fiber optic gyroscope (EI CONFERENCE) 会议论文 OAI收割
2007 IEEE International Conference on Mechatronics and Automation, ICMA 2007, August 5, 2007 - August 8, 2007, Harbin, China
Zhang Z.; Sun J.; Wu K.

收藏 | 浏览/下载：20/0 | 提交时间：2013/03/25

North-finding system provides true north azimuth information to all kinds of ground-based equipment. A dynamic automatic north-finder based on the modulation output of fiber optic gyroscope (FOG) is presented in this paper. In this scheme the sine output signal of the FOG was sampled and disposed and then the real north of surveyed point on the surface of earth was calculated. The deviation caused by the platform base tilt was compensated by an accelerator Allan standard deviation is used to analyze the random drift of FOG and establish the random error mode of FOG. The FOG north-finding and laser collimation theodolite are assembled to achieve orientation and aiming integral which lays foundation for switching to project application. 2007 IEEE.

Integrated intensity, orientation code and spatial information for robust tracking (EI CONFERENCE) 会议论文 OAI收割
2007 2nd IEEE Conference on Industrial Electronics and Applications, ICIEA 2007, May 23, 2007 - May 25, 2007, Harbin, China
作者: Wang Y.; Wang Y.; Wang Y.; Wang Y.; Wang Y.

收藏 | 浏览/下载：34/0 | 提交时间：2013/03/25

real-time tracking is an important topic in computer vision. Conventional single cue algorithms typically fail outside limited tracking conditions. Integration of multimodal visual cues with complementary failure modes allows tracking to continue despite losing individual cues. In this paper we combine intensity orientation codes and special information to form a new intensity-orientation codes-special (IOS) feature to represent the target. The intensity feature is not affected by the shape variance of object and has good stability. Orientation codes matching is robust for searching object in cluttered environments even in the cases of illumination fluctuations resulting from shadowing or highlighting etc The spatial locations of the pixels are used which allow us to take into account the spatial information which is lost in traditional histogram. Histograms of intensity orientation codes and spatial information are employed for represent the target Mean shift algorithm is a nonparametric density estimation method. The fast and optimal mode matching can be achieved by this method. In order to reduce the compute time we use the mean shift procedure to reach the target localization. Experiment results show that the new method can successfully cope with clutter partial occlusions illumination change and target variations such as scale and rotation. The computational complexity is very low. If the size of the target is 3628 pixels it only needs 12ms to complete the method. 2007 IEEE.

Fingerprint registration by maximization of mutual information 期刊论文 OAI收割
IEEE TRANSACTIONS ON IMAGE PROCESSING, 2006, 卷号: 15, 期号: 5, 页码: 1100-1110
作者: Liu, LF; Jiang, TZ; Yang, JW; Zhu, CZ

收藏 | 浏览/下载：30/0 | 提交时间：2015/11/07

biometrics fingerprints matching minutia mutual information (MI) orientation field registration

Error analysis and test study of fiber optic gyroscope north-finder (EI CONFERENCE) 会议论文 OAI收割
Advanced Sensor Systems and Applications II, November 8, 2004 - November 12, 2004, Beijing, China
Zhang Z.; Sun J.; Wu K.

收藏 | 浏览/下载：22/0 | 提交时间：2013/03/25

North-finder system is an important application of the inertial technology. It provides true north azimuth information to f all kinds of ground-based equipment. This paper designed a dynamic automatic north-finder based on the modulation output of fiber optic gyroscope (FOG). In this scheme the sine output signal of the FOG was sampled and disposed and then the real north of surveyed point on the surface of earth was calculated. The deviation caused by the base tilt was compensated by an accelerator. The output signals of FOG and accelerator were computed combined with the position sampled from increasing encoder by digital signal processor. Successive rotating technique was adopted to modulate the FOG signal periodically. Most of the low frequency part of random gyro drift errors was compensated. The north-finder accuracy was improved compared with the traditional static measuring method. The test result shows the FOG automatic north-finder obtains 2' true north angle accuracies within not more than three minutes can meet the orientation need of artillery terrain measurement vehicle armored car unmanned drive vehicle geodetic survey and tunnel exploration.