A spectral image registration method based on reference transfer
By preprocessing the spectral image sequence and performing reference transfer registration, the problems of platform state differences and inconsistent grayscale distribution in aerospace spectral image acquisition were solved, achieving high-precision spectral image registration and improving the signal-to-noise ratio and registration accuracy.
CN121861087BActive Publication Date: 2026-05-26CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
View PDF 2 Cites 0 Cited by
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
- Filing Date
- 2026-03-17
- Publication Date
- 2026-05-26
Smart Images
Figure CN121861087B_ABST
Abstract
This invention relates to the field of hyperspectral remote sensing image processing technology, specifically providing a spectral image registration method based on reference transfer. The method includes: preprocessing the spectral image sequence, selecting a reference image based on gradient information entropy, extracting and matching feature points of adjacent spectral bands, and calculating the homography transformation matrix of adjacent spectral bands. Two paths are designed: direct registration and reference transfer registration. The actual registration path is selected based on the registration error, and the registration of all spectral bands is completed iteratively. This invention designs a dedicated registration process for airborne hyperspectral images, improving registration efficiency and accuracy, and addressing the inconsistency between feature point extraction and descriptors in traditional registration processes.
Need to check novelty before this filing date? Find Prior Art