Main work is focused on extracting visual information-low level vision and middle level vision in this paper.

本文把主要工作放在视觉信息提取上，即低层视觉和中层视觉。

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The main study contents of Computer vision include input device, low level vision, middle level vision, high level vision, and system architecture.

计算机视觉的研究内容主要包括图像输入设备、低层视觉、中层视觉、高层视觉和体系结构等五个方面。

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The main study contents of Computer vision include input device, low level vision, middle level vision, high level vision, and system architecture.

计算机视觉的研究内容主要包括图像输入设备、低层视觉、中层视觉、高层视觉和体系结构等五个方面。

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