Traditional image processing methods of remote sensing (supervised and unsupervised classification) are based on the pixel level when one pixel corresponds to a type of object. The precision of results often does not meet practical requirements.
但由于城市地物的复杂性，中等分辨率的遥感影像中存在着大量的混合像元，传统的遥感研究方法(监督分类、非监督分类)都是基于像元级的，一个像元对应一种地物类型，这样得到的结果精度往往达不到实用要求。
参考来源 - 遥感混合像元分解技术在土地覆盖与生态环境变化中应用研究·2,447,543篇论文数据，部分数据来源于NoteExpress
A pixel level algorithm of generating heart curve is present.
给出了心形线的像素级绘制算法。
Don't copy and paste, zoom down to pixel level to learn from the best.
不要复制粘贴，放大到像素级学习是最好的。
He was way down into the details. He would scrutinize everything, down to the pixel level.
“Ratzlaff说道，”他一向重视细节，他会在像素层面审视任何东西。
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