波浪环境下的水下目标激光线畸变校正方法、程序及介质

By tracing the incident light and calculating the depth of the target reflection point, the laser line distortion of the underwater target is corrected, solving the imaging deviation problem in the wave environment and achieving higher precision underwater target reconstruction.

CN121961942BActive Publication Date: 2026-07-17XIAN INST OF OPTICS & PRECISION MECHANICS CHINESE ACAD OF SCI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XIAN INST OF OPTICS & PRECISION MECHANICS CHINESE ACAD OF SCI
Filing Date
2026-04-01
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies cannot effectively eliminate imaging deviations caused by wave interference when performing laser line scanning on underwater targets in wave environments, and the application of ray tracing methods requires knowledge of the target depth.

Method used

The laser line distortion is corrected by incident light tracing, target reflection point depth calculation and laser line imaging position restoration. The method includes steps S1-S4, which use imaging equipment parameters and water surface wave information to calculate the depth of the target reflection point and the laser line imaging position when there are no waves, thereby achieving correction.

Benefits of technology

It can accurately correct laser line distortion without needing to obtain target depth information in advance, significantly improving the accuracy of underwater target reconstruction and making it more widely applicable.

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Abstract

本发明涉及激光畸变校正方法,具体涉及波浪环境下的水下目标激光线畸变校正方法、程序及介质。为解决基于图像处理的激光线重建方法无法从根本上消除波浪导致的成像偏差,或者基于光线追迹的激光线重建方法必须已知目标深度,导致应用受限的不足之处,本发明波浪环境下的水下目标激光线畸变校正方法包括入射光追迹、目标反射点的深度计算、激光线成像位置复原,按照上述方法得到激光线对应的所有像素的校正像元坐标,再将校正像元坐标转换为对应的校正像素坐标,替换原始图像上激光线的像素坐标,得到校正后的真实图像。
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