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浏览/检索结果: 共6条，第1-6条 帮助 已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Contour Integration over Time: Psychophysical and fMRI Evidence 期刊论文 CEREBRAL CORTEX, 2017 Kuai, Shu-Guang; Li, Wu; Yu, Cong; Kourtzi, Zoe 收藏  |  浏览/下载：11/0  |  提交时间：2017/12/03 contour integration  fMRI  Gestalt principles  good continuity  psychophysics  PRIMARY VISUAL-CORTEX  SHORT-TERM-MEMORY  LATERAL OCCIPITAL COMPLEX  PARIETAL CORTEX  GLOBAL SHAPES  HUMAN BRAIN  AREAS  PERCEPTION  INFORMATION  DYNAMICS   Obtain martian magnetic pileup boundary by spectrum of low energy electrons 期刊论文 science china technological sciences, 2013 Li ChenFang; Zou Hong; Chen HongFei; Shi WeiHong; Yu XiangQian 收藏  |  浏览/下载：5/0  |  提交时间：2015/11/10 Mars exploration  magnetic pileup boundary  low energy electron  SOLAR-WIND INTERACTION  MARS-GLOBAL-SURVEYOR  UP BOUNDARY  PLASMA  FIELD  IONOSPHERE  SHAPES  WAVES  SHOCK   A shape context based Hausdorff similarity measure in image matching 会议论文 5th International Symposium on Photoelectronic Detection and Imaging (ISPDI) - Infrared Imaging and Applications, Beijing, June 25-27, 2013 作者:  Ma TL(马天磊);  Liu YP(刘云鹏);  Shi ZL(史泽林);  Yin J(尹健) 收藏  |  浏览/下载：25/0  |  提交时间：2013/12/26 The traditional Hausdorff measure, which uses Euclidean distance metric (L2 norm) to define the distance between coordinates of any two points, has poor performance in the presence of the rotation and scale change although it is robust to the noise and occlusion. To address the problem, we define a novel similarity function including two parts in this paper. The first part is Hausdorff distance between shapes which is calculated by exploiting shape context that is rotation and scale invariant as the distance metric. The second part is the cost of matching between centroids. Unlike the traditional method, we use the centroid as reference point to obtain its shape context that embodies global information of the shape. Experiment results demonstrate that the function value between shapes is rotation and scale invariant and the matching accuracy of our algorithm is higher than that of previously proposed algorithm on the MEPG-7 database.   Opposite Modulation of High- and Low-Level Visual Aftereffects by Perceptual Grouping 期刊论文 current biology, 2012 He, Dongjun; Kersten, Daniel; Fang, Fang 收藏  |  浏览/下载：6/0  |  提交时间：2015/11/10 OBJECT RECOGNITION  FORM CONSTRAINTS  GLOBAL SHAPES  CORTEX  ADAPTATION  ORGANIZATION  FEATURES  STATES  FMRI   Vibration analysis of non-uniform beams with an arbitrary number of cracks 期刊论文 2010, 2010 Zhigang Yu; Fulei Chu; Yue Cheng 收藏  |  浏览/下载：2/0 The fronto-parietal network and top-down modulation of perceptual grouping 期刊论文 neurocase, 2007 Han, Shihui; Humphreys, Glyn W. 收藏  |  浏览/下载：5/0  |  提交时间：2015/11/10 ERP  perceptual grouping  proximity  collinearity  fronto-parietal lesion  HUMAN PARIETAL CORTEX  HUMAN VISUAL-CORTEX  SPATIAL SELECTIVE ATTENTION  NEURAL MECHANISMS  LATERAL INTERACTIONS  FUNCTIONAL MRI  GLOBAL SHAPES  LOCALIZATION  ORGANIZATION  POTENTIALS