In order to retrieve a similarly look trademark from a large trademark database, an automatic content based trademark retrieval method using block hit statistic and comer Delaunay Triangulation features was proposed. ...In order to retrieve a similarly look trademark from a large trademark database, an automatic content based trademark retrieval method using block hit statistic and comer Delaunay Triangulation features was proposed. The block features are derived from the hit statistic on a series of concentric ellipse. The comers are detected based on an enhanced SUSAN （Smallest Univalue Segment Assimilating Nucleus） algorithm and the Delaunay Triangulation of comer points are used as the comer features. Experiments have been conducted on the MPEG-7 Core Experiment CE-Shape-1 database of 1 400 images and a trademark database of 2 000 images. The retrieval results are very encouraging.展开更多
The significance of reading is obvious. For one thing, reading is a principal way of getting knowledge in this age of information explosion. Although we have such modern means as radios and television to spread inform...The significance of reading is obvious. For one thing, reading is a principal way of getting knowledge in this age of information explosion. Although we have such modern means as radios and television to spread information, they can never replace the countless printing materials in the world today. Be-展开更多
基金Supported by the National High Technology Research and Development Program of China(863 Program) (2006AA01Z129)the 985-2 Project (0000-X07204) of Xiamen University
文摘In order to retrieve a similarly look trademark from a large trademark database, an automatic content based trademark retrieval method using block hit statistic and comer Delaunay Triangulation features was proposed. The block features are derived from the hit statistic on a series of concentric ellipse. The comers are detected based on an enhanced SUSAN （Smallest Univalue Segment Assimilating Nucleus） algorithm and the Delaunay Triangulation of comer points are used as the comer features. Experiments have been conducted on the MPEG-7 Core Experiment CE-Shape-1 database of 1 400 images and a trademark database of 2 000 images. The retrieval results are very encouraging.
文摘The significance of reading is obvious. For one thing, reading is a principal way of getting knowledge in this age of information explosion. Although we have such modern means as radios and television to spread information, they can never replace the countless printing materials in the world today. Be-
