| 摘要 |
In a multi-stage scanning method for increasing a scanning speed and enhancing an image quality, an optical module is firstly moved from a start position to a forward-internal position in a forward direction, and then enabled to scan a first portion of a document to obtain a first image until the module reaches a forward-boundary position. Then, the module is moved from the forward-boundary position to an end position in the forward direction. Next, the module is moved from the end position to a reverse-internal position in a reverse direction, and then enabled to scan a second portion of the document to obtain a second image until the module reaches a reverse-boundary position. Then, the module is moved from the reverse-boundary position to the start position, in the reverse direction, and then stopped. Finally, the first and second images are stitched into a complete image.
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