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An improved approach to the efficient construction of and search operations in motion graphs

Science china(Information Sciences) 2012年第5期55卷 1042-1051页

作者： gao yan 1,chen zhihua 2,chen mingang 3.& shen yang 3.1 software engineering institute,east china normal university,shanghai 200062,china 2 Department of Computer Science and engineering,east china university of Science and Technology,shanghai 200237,china 3 Department of Computer Science and engineering,shanghai Jiao Tong university,shanghai 200240,china 1. software engineering institute East China Normal University Shanghai 200062 China2. Department of Computer Science and Engineering East China University of Science and Technology Shanghai 200237 China3. Department of Computer Science and Engineering Shanghai Jiao Tong University Shanghai 200240 China

Motion graphs have been widely used as an effective technique in the synthesis of human *** synthesize well-formed motions,motion graphs require smooth transitions and good ***,the time and costs grow quadratically as the graph size *** this paper,we present a method to set up a hierarchical structure,called a structure *** coarse level of this graph models different motion categories and their transitions,and the fine level mainly captures different motion *** interpolation space method is used to improve the graph connectivity at the fine *** structure guides the establishment of a faster and more realistic graphical *** the building process,this structure also helps with searching the motion graph,by performing a traverse search and placing the findings into a direct look-up table or local search ***,when there is no direct link between the different motions,a navigation map is introduced to conduct an appropriate search path via a series of transition motion *** experimental results indicate that our approach could lower the computation time in construction and searching,while simultaneously providing a richer variety of motion styles.

关键词： motion graph structure table registration curve motion interpolation

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Image enhancement of color fundus photographs for age-related macular degeneration:the shanghai Changfeng Study

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International Journal of Ophthalmology(English edition) 2022年第2期15卷 268-275页

作者： Jing-Jing shen Rui Wang Li-Long Wang Chuan-Feng Lyu Shuo Liu Guo-Tong Xie Hai-Luan Zeng Ling-yan chen Min-Qian shen Xin gao Huan-Dong Lin Yuan-Zhi Yuan Department of Ophthalmology Zhongshan HospitalFudan UniversityShanghai 200032China Center for Evidence-based Medicine Fudan UniversityShanghai 200032China Pingan Technology(shenzhen)Co. Ltd.Shenzhen 518029Guangdong ProvinceChina Department of Endocrinology and Metabolism Zhongshan HospitalFudan UniversityShanghai 200032China Fudan institute for Metabolic Diseases Shanghai 200032China

AIM:To develop and evaluate a new fundus image optimization software based on red,green,blue channels(RGB) for the evaluation of age-related macular degeneration(AMD) in the Chinese ***:Fundus images that were diagnosed as AMD from the shanghai Changfeng Study database were analyzed to develop a standardized optimization *** brightness,contrast,and color balance were *** between central lesion area and normal retinal area under different image brightness,contrast,and color balance were *** optimal optimization parameters were determined based on the visual system to avoid image distortion.A paired-sample diagnostic test was used to evaluate the enhancement *** optical coherence tomography(OCT) was used as the gold *** performances were compared between original images and optimized images using Mc Nemar’s ***:A fundus image optimization procedure was developed using 86 fundus images of 74 subjects diagnosed with *** observing gray-scale images,choroid can be best displayed in red channel and retina in green channel was *** was limited information in blue *** 104 participants were included in the paired sample diagnostic test to assess the performance of the optimization *** the image enhancement,sensitivity increased from 74% to 88%(P=0.008),specificity decreased slightly from 88% to 84%(P=0.500),and Youden index increased by ***:The standardized image optimization software increases diagnostic sensitivity and may help ophthalmologists in AMD diagnosis and screening.

关键词： age-related macular degeneration image enhancement image optimization retina

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Overview to the Hard X-ray Modulation Telescope (Insight-HXMT) Satellite

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Science china(Physics,Mechanics & Astronomy) 2020年第4期63卷 2-19页

作者： Shuang-Nan Zhang TiPei Li FangJun Lu LiMing Song YuPeng X u CongZhan Liu Yong chen XueLei Cao QingCui Bu Zhi Chang Gang chen Li chen TianXiang chen YiBao chen YuPeng chen Wei Cui WeiWei Cui JingKang Deng YongWei Dong Yuan Yuan Du MinXue Fu GuanHua gao He gao Min gao MingYu Ge YuDong Gu Ju Guan Can Gungor chengcheng Guo DaWei Han Wei Hu Yue Huang Jia Huo ShuMei Jia LuHua Jiang WeiChun Jiang Jing Jin YongJie Jin Bing Li chengKui Li Gang Li MaoShun Li Wei Li Xian Li XiaoBo Li XuFang Li yanguo Li ZiJian Li ZhengWei Li XiaoHua Liang JinYuan Liao GuoQing Liu HongWei Liu ShaoZhen Liu XiaoJing Liu Yuan Liu YiNong Liu Bo Lu XueFeng Lu Tao Luo Xiang Ma Bin Meng Yi Nang JianYin Nie Ge Ou JinLu Qu Na Sai Rencheng Shang GuoHong shen Liang Sun Ying Tan Lian Tao YouLi Tuo chen Wang ChunQin Wang GuoFeng Wang HuanYu Wang Juan Wang WenShuai Wang YuSa Wang Xiangyang Wen Baiyang Wu BoBing Wu Mei Wu Guangcheng Xiao ShaoLin Xiong LinLi yan JiaWei yang sheng yang yanJi yang QiBin Yi Bin Yuan AiMei Zhang ChunLei Zhang chengMo Zhang Fan Zhang HongMei Zhang Juan Zhang Qiang Zhang shenYi Zhangs Shu Zhang Tong Zhang WanChang Zhang Wei Zhang WenZhao Zhang Yi Zhang YiFei Zhang YongJie Zhang Yue Zhang Zhao Zhang Zhi Zhang ZiLiang Zhang Haisheng Zhao XiaoFan Zhao ShiJie Zheng JianFeng Zhou YuXuan Zhu Yue Zhu RenLin Zhuang Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China university of Chinese Academy of Sciences Beijing 100049China Department of Astronomy Tsinghua UniversityBeijing 100084China Department of Physics Tsinghua UniversityBeijing 100084China Department of Astronomy Beijing Normal UniversityBeijing 100088China Department of engineering Physics Tsinghua UniversityBeijing 100084China National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China National Space Science Center Chinese Academy of SciencesBeijing 100190China

As china’s first X-ray astronomical satellite, the Hard X-ray Modulation Telescope (HXMT), which was dubbed as Insight-HXMT after the launch on June 15, 2017, is a wide-band(1-250 ke V) slat-collimator-based X-ray astronomy satellite with the capability of all-sky monitoring in 0.2-3 Me V. It was designed to perform pointing, scanning and gamma-ray burst(GRB)observations and, based on the Direct Demodulation Method (DDM), the image of the scanned sky region can be *** we give an overview of the mission and its progresses, including payload, core sciences, ground calibration/facility, ground segment, data archive, software, in-orbit performance, calibration, background model, observations and some preliminary results.

关键词： X-and γ-ray telescopes and instrumentation neutron stars black holes X-ray binaries γ-ray bursts

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