Image-Based Length and Width Measurement of Crimped Tension Clamp

Associated to the crimp quality, the crimping length and width are important parameters in the crimping process. An innovative image-based parameter measurement method was proposed. Firstly, the original image was preprocessed using adaptive cropping, CLAHE enhancement, and Otsu thresholding. Then edges were obtained through morphological processing and fitted using Random Sampling Consensus (RANSAC). Finally, the crimping length and width were measured by image analysis technique. The experiment results show that the proposed measurement method has advantages of high efficiency, high accuracy and good repeatability.