关键词: 发明问题解决理论, 受电弓, 物质-场模型, 机器视觉, 图像

Abstract: It was difficult to find the correct object in the circumstance of noise when detecting the object in the pantograph image . In order to overcome this difficulty, a rectangular template was employed to search the local object edge. The algorithm description model was constructed based on Su-field analysis method in TRIZ theory. The algorithm was analyzed by applying conflict solution method in TRIZ theory, the optimal template dimension was obtained based on the principle of No.1 segmentation, and the big step search strategy was used based on the principle of No.35 parameter changes, and the strategy of search the edge from the object inside to the outside was used based on the principle of No.13 the other way round. Simulation example showed that the algorithm possessed the ability of resisting the noise in pantograph image without increasing computation amount obviously. Finally, the actual pantograph image in scene was used to verify the detection algorithm; the results revealed its rationality and feasibility.

Key words: TRIZ theory, pantograph, substance field model