水下雙目視覺系統(tǒng)中的目標(biāo)分割和目標(biāo)定位
[Abstract]:In order to solve the problem of incomplete target segmentation in typical grayscale and threshold method, a two-step object segmentation method based on gray contrast enhancement is proposed: the first step is based on color vector threshold; The second step is to analyze the local contrast and the homogeneity in the region, determine the weights and the reverse processing of different channels dynamically, and then enhance the gray contrast to complete the fine segmentation of the target. Aiming at the problem that the typical calibration, stereo matching and target position measurement methods are not suitable for this research environment, a target location method based on target size estimation is proposed. Firstly, the on-line external parameter calibration and the target center matching are completed. Then the size of the target is estimated by the binocular position measurement data, and the location data is obtained by the monocular position measurement. The results show that the segmentation method can segment the target accurately, the segmentation accuracy and the error classification ratio are better than the typical method, and the location method can get the 3D position data of the target. The binocular vision system can effectively cooperate with the underwater launch vehicle-manipulator system to complete the autonomous task.
【作者單位】: 哈爾濱工程大學(xué)機(jī)電工程學(xué)院;
【基金】:國防基礎(chǔ)科研基金資助項(xiàng)目(B2420133003)
【分類號】:TP391.41
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