基于原始高光谱遥感影像的数字靶标构建及成像信噪比、成像光谱准确度质量评价方法
By constructing digital targets based on original hyperspectral remote sensing images, the problems of single evaluation indicators and large errors in traditional targets are solved, and accurate simulation imaging and quantitative evaluation of the digital model of hyperspectral remote sensing payloads are realized.
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
- 2024-01-31
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional evaluation metrics for physical targets or digital image targets are limited, and the content of the targets differs greatly from the content of real hyperspectral remote sensing images. This makes it impossible to intuitively evaluate the actual imaging effect of the digital model of the hyperspectral remote sensing payload. Furthermore, directly using real hyperspectral remote sensing images for simulation imaging will introduce the payload's own errors, resulting in large errors in the imaging effect.
Digital targets were constructed based on original hyperspectral remote sensing images. Through land cover classification, characteristic spectral statistics, and resampling, digital targets suitable for the digital model of hyperspectral remote sensing payloads were built. The signal-to-noise ratio and spectral accuracy evaluation methods were used for evaluation.
The constructed digital target can intuitively display the actual observation and imaging effect of the hyperspectral remote sensing payload, eliminate image data errors, realize accurate simulation imaging evaluation of the digital model of the hyperspectral remote sensing payload, and is applicable to different ground cover scenarios, providing quantitative evaluation.
Smart Images
Figure CN118014950B_ABST