| 摘要: |
| 高分一号(GF-1)是我国自主研制的宽幅带高空间分辨率遥感卫星, 为分析其在海岸带地区的应用潜力, 本文采用主观和客观相结合的评价方法, 并与SOPT-5 卫星影像进行比对, 开展GF-1 影像的成像质量评价。主观评价结果表明: GF-1 影像表现能力与SPOT-5 影像相当, 在某些地物特征表现上与SPOT-5 比较一致。客观评价表明: GF-1 影像的4 种统计参数与SPOT-5 影像比较接近且各有高低, GF-1影像各波段的灰度分布更分散, 地物间的可分性更高; GF-1 影像各波段的信噪比和波段间的独立性与SPOT-5 比较, 基本相同, 整体看来, GF-1 具有较高的成像质量, 在海岸带地区具有一定的应用潜力。 |
| 关键词: 高分一号(GF-1) SPOT-5 遥感 海岸带 成像质量 |
| DOI：10.11759/hykx20141011005 |
| 分类号: |
| 基金项目:国家海洋局第一海洋研究所基本科研业务费项目(2013G08); 中欧国际合作龙计划三期项目(ID10470) |
|
| Quality evaluation of GF-1 Satellite image of coastal zone |
|
|
| Abstract: |
| GF-1 is a wide band of self-developed high spatial resolution remote sensing satellite. To analyze its potential applications in coastal areas and evaluate the its image quality, we used subjective and objective evaluation method and took a compared the SOPT-5 satellite images. Subjective evaluation showed that: GF-1 image and SPOT-5 image had equivalent performance capabilities, and on some land features, GF-1 and SPOT-5 images showed significant. Objective evaluation showed that: Four kinds of statistical parameters of GF-1 and SPOT-5 images were close and had high or low aspects respectively. Each band gray distribution of GF-1 image was more dispersed, and had a higher separability feature. The SNR of each band and the independence between each band in the GF-1 images were basically the same compared with the SPOT-5 images. Overall GF-1 has a high image quality and has some potential applications in coastal areas. |
| Key words: GF-1 SPOT-5 remote sensing coastal zone image quality |
