F-theta field lens based flash lidar polar coordinate angle correction method
By directly calculating the light angle through the linear projection relationship of the F-θ lens, the calculation process of Flash LiDAR is simplified, the problems of computational complexity and error accumulation in traditional methods are solved, and high-precision 3D point cloud reconstruction is achieved.
CN122151034APending Publication Date: 2026-06-05SUZHOU SAITONG INTELLIGENT TECHNOLOGY CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SUZHOU SAITONG INTELLIGENT TECHNOLOGY CO LTD
- Filing Date
- 2026-03-26
- Publication Date
- 2026-06-05
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Figure CN122151034A_ABST
Abstract
The application discloses a Flash laser radar polar coordinate angle correction method based on an F-theta field mirror, adopts an F-theta lens to construct an optical system, uses a linear projection design index of a light incidence angle and a distance of a focal point of a working surface from a center point, arranges a receiving chip on a working surface of the F-theta lens and aligns the receiving chip with a central main optical axis, determines a distance based on a known distance of a receiving surface element, directly calculates a light angle in combination with a focal length, gives a corresponding distance measuring channel, and completes three-dimensional polar coordinate restoration in combination with the distance. The method discards traditional nonlinear fitting, simplifies a model, reduces errors, guarantees the accuracy and efficiency of three-dimensional point cloud restoration, and is suitable for the technical field of Flash laser radars.
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