目标斑图
Target spot map
以上为机器翻译结果，长、整句建议使用 人工翻译 。
高分辨率SAR图象中目标背景复杂，同时由于受相干斑噪声的影响，很难直接从原始图象数据中提取道路特征。
As the background of objectives in high-resolution SAR images is complicated and also affected by speckle noise, it is almost impossible to extract roads directly from original remote sensing images.
youdao
应用推荐
模块上移
模块下移
不移动