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中文摘要：
为了在特征点匹配过程中控制错误传播，提出一种基于三角形约束来进行图像特征点匹配的方法．首先检测可能误匹配或者位于变化区域的三角形，然后在后续三角形匹配细分过程中将这些三角形赋予较低优先级，从而可有效地控制错误在匹配过程中传播．实验结果表明，采用该方法能有效地控制匹配过程中的错误传播，提高匹配精度．
英文摘要：
This paper presents an image matching approach based on triangle constraint which can control the error propagation during the matching process. Firstly, this approach detects the triangles that may have been mismatched or located in changed regions. In the following process, those triangles are assigned with a lower priority; therefore, it is effective to control the error propagation during the matching process. Experiments show that error propagation in the matching process is effectively controlled by this approach and the matching precision is improved.
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