TY - EJOU AU - Mao, Hande AU - Yan, Hongzhe AU - Lin, Lei AU - Dong, Wentao AU - Li, Yuhang AU - Liu, Yuliang AU - Xue, Jing TI - Fast Segmentation Method of Sonar Images for Jacket Installation Environment T2 - Intelligent Automation \& Soft Computing PY - 2023 VL - 36 IS - 2 SN - 2326-005X AB - It has remained a hard nut for years to segment sonar images of jacket installation environment, most of which are noisy images with inevitable blur after noise reduction. For the purpose of solutions to this problem, a fast segmentation algorithm is proposed on the basis of the gray value characteristics of sonar images. This algorithm is endowed with the advantage in no need of segmentation thresholds. To realize this goal, we follow the undermentioned steps: first, calculate the gray matrix of the fuzzy image background. After adjusting the gray value, the image is divided into three regions: background region, buffer region and target regions. After filtering, we reset the pixels with gray value lower than 255 to binarize images and eliminate most artifacts. Finally, the remaining noise is removed by morphological processing. The simulation results of several sonar images show that the algorithm can segment the fuzzy sonar images quickly and effectively. Thus, the stable and feasible method is testified. KW - Image segmentation; sonar image; ocean engineering; morphological image DO - 10.32604/iasc.2023.028819