一种陆地生态系统碳监测卫星三视立体影像构建与稠密匹配获取DSM方法

By fusing and transforming images from terrestrial ecosystem carbon monitoring satellites, the problem of resolution and band inconsistency was solved, the accuracy of terrain inversion and computational efficiency were improved, and dense matching acquisition of three-view stereo images was achieved.

CN121685846BActive Publication Date: 2026-07-17MINISTRY OF NATURAL RESOURCES LAND SATELLITE REMOTE SENSING APPL CENT
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
MINISTRY OF NATURAL RESOURCES LAND SATELLITE REMOTE SENSING APPL CENT
Filing Date
2025-12-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, the forward-looking 19-degree panchromatic images and backward-looking 19-degree panchromatic images of terrestrial ecosystem carbon monitoring satellites have significant resolution differences and inconsistent band settings, which makes image matching difficult and affects the accuracy and completeness of terrain inversion.

Method used

By fusing the forward-looking 19-degree panchromatic image and the rear-looking 19-degree panchromatic image with their respective multispectral images, a single-band image is converted. The RPC parameters are then used for orientation to construct a three-view stereo image. The DSM is then refined by matching the image pyramid layer by layer.

Benefits of technology

It achieves consistency in image resolution and band settings, improves the accuracy and completeness of terrain inversion, and optimizes calculation speed and accuracy.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121685846B_ABST
    Figure CN121685846B_ABST
Patent Text Reader

Abstract

本发明公开了一种陆地生态系统碳监测卫星三视立体影像构建与稠密匹配获取DSM方法，该方法包括：对19°前视、后视全色与多光谱影像进行5×5分块SIFT配准、RANSAC去粗差，建立八参数仿射模型，经双三次卷积重采样后，在W×W窗口内以红绿蓝三波段线性拟合系数进行乘性融合，生成3.5m四波段融合影像；将正视、前视、后视融合影像四波段DN值几何平均转为单波段并绑定对应RPC；初始化等高层格网；构建n层2倍分辨率递减金字塔；自顶层到底层，以1.5倍格网步长高程搜索，RPC投影三视影像，取5×5窗口相关系数最小代价，SGM聚合最优高程，逐层精化输出DSM。本发明实现了碳监测卫星三视影像分辨率与光谱一致性，提高了DSM精度与效率，适用于森林冠层高度及碳储量反演。
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • CN113570536A

  • CN121095802A