Supported by research available of township system and influential sphere, the research is conducted based on towns in Bijie City, as per Voronoi diagram and breaking point theory. In the research, Shixi Office domina...Supported by research available of township system and influential sphere, the research is conducted based on towns in Bijie City, as per Voronoi diagram and breaking point theory. In the research, Shixi Office dominated as the highest center and Salaxi Town and Haizijie Town were sub-centers, supplemented by Yachi Town, Zhuchang Town, Yangjiawan Town, Qingchang Town, Heguantun Town, Qingshuipu Town, Yanzikou Town and Longchangying Town. Hence, township system and influ- ential sphere were determined and related methods and technologies were explored.展开更多
Abstract At present, descriptions of Cleantioides emarginata Kwon ＆ K/m, 1992 have been limited to the type locality of Pusan, In this study, we discovered this species in the Changjiang （Yangtze） River estuary, Ch...Abstract At present, descriptions of Cleantioides emarginata Kwon ＆ K/m, 1992 have been limited to the type locality of Pusan, In this study, we discovered this species in the Changjiang （Yangtze） River estuary, China. This represents an extension of the known geographical range of C. emarginata. In addition, we present information of a colour pattern not previously described, along with details on the estuarine habitat of the species.展开更多
A new vision-based approach was presented for predicting the behavior of the ball carrier—shooting, passing and dribbling in basketball matches. It was proposed to recognize the ball carrier’s head pose by classifyi...A new vision-based approach was presented for predicting the behavior of the ball carrier—shooting, passing and dribbling in basketball matches. It was proposed to recognize the ball carrier’s head pose by classifying its yaw angle to determine his vision range and the court situation of the sportsman within his vision range can be further learned. In basketball match videos characterized by cluttered background, fast motion of the sportsmen and low resolution of their head images, and the covariance descriptor, were adopted to fuse multiple visual features of the head region, which can be seen as a point on the Riemannian manifold and then mapped to the tangent space. Then, the classification of head yaw angle was directly completed in this space through the trained multiclass LogitBoost. In order to describe the court situation of all sportsmen within the ball carrier’s vision range, artificial potential field (APF)-based information was introduced. Finally, the behavior of the ball carrier—shooting, passing and dribbling, was predicted using radial basis function (RBF) neural network as the classifier. Experimental results show that the average prediction accuracy of the proposed method can reach 80% on the video recorded in basketball matches, which validates its effectiveness.展开更多
基金Supported by General Plan of Bijie Land Use ([2009]XY1015)~~
文摘Supported by research available of township system and influential sphere, the research is conducted based on towns in Bijie City, as per Voronoi diagram and breaking point theory. In the research, Shixi Office dominated as the highest center and Salaxi Town and Haizijie Town were sub-centers, supplemented by Yachi Town, Zhuchang Town, Yangjiawan Town, Qingchang Town, Heguantun Town, Qingshuipu Town, Yanzikou Town and Longchangying Town. Hence, township system and influ- ential sphere were determined and related methods and technologies were explored.
基金Supported by the Innovate Funds of East China Normal University(No.78210097)the Innovate Funds of the State Key Laboratory of Estuarine and Coastal Research(No.2010RCDW15)the National Natural Science Foundation of China(Nos.41201441,40906046)
文摘Abstract At present, descriptions of Cleantioides emarginata Kwon ＆ K/m, 1992 have been limited to the type locality of Pusan, In this study, we discovered this species in the Changjiang （Yangtze） River estuary, China. This represents an extension of the known geographical range of C. emarginata. In addition, we present information of a colour pattern not previously described, along with details on the estuarine habitat of the species.
基金Project(50808025) supported by the National Natural Science Foundation of ChinaProject(20090162110057) supported by the Doctoral Fund of Ministry of Education, China
文摘A new vision-based approach was presented for predicting the behavior of the ball carrier—shooting, passing and dribbling in basketball matches. It was proposed to recognize the ball carrier’s head pose by classifying its yaw angle to determine his vision range and the court situation of the sportsman within his vision range can be further learned. In basketball match videos characterized by cluttered background, fast motion of the sportsmen and low resolution of their head images, and the covariance descriptor, were adopted to fuse multiple visual features of the head region, which can be seen as a point on the Riemannian manifold and then mapped to the tangent space. Then, the classification of head yaw angle was directly completed in this space through the trained multiclass LogitBoost. In order to describe the court situation of all sportsmen within the ball carrier’s vision range, artificial potential field (APF)-based information was introduced. Finally, the behavior of the ball carrier—shooting, passing and dribbling, was predicted using radial basis function (RBF) neural network as the classifier. Experimental results show that the average prediction accuracy of the proposed method can reach 80% on the video recorded in basketball matches, which validates its effectiveness.
