In-situ measurement method and system for optical parameters of water body
By observing the imaging distance difference and brightness difference of multiple imaging units, the problem of insufficient real-time measurement of underwater optical parameters is solved, and high-precision inversion of water optical parameters is achieved, supporting accurate restoration of underwater images.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHENZHEN UNIV
- Filing Date
- 2026-06-15
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional underwater optical systems lack the ability to measure water optical parameters in real time, in situ, and from the same source in environments such as turbid water, complex nearshore water, and long-term deep-sea platforms, resulting in a lack of reliable physical parameter support for image restoration and optical sensing.
A measurement device consisting of at least two non-collinear and non-coplanar imaging units determined by their relative poses is used. By dividing the imaging units into reference and non-reference imaging units based on the different imaging distances from multiple imaging units to the same point in the underwater region, the imaging distance difference and brightness residual of corresponding points are calculated, an objective optimization function is established, and the optical parameters of the water body, including the water absorption coefficient, scattering coefficient, and backscattering coefficient, are iteratively solved.
It enables in-situ, synchronous, and interpretable measurement of water optical parameters, and obtains high-precision and robust water optical parameter inversion results, which can truly reflect the water optical state during the image formation process.
Smart Images
Figure CN122409644A_ABST