| 摘要 |
An imaging device for imaging a document including an enclosed imaging-optical-chamber, a processor, a camera mounted inside the imaging-optical-chamber, at least two clusters of light sources disposed inside the imaging-optical-chamber, for directly illuminating of the document, and a glass-window. The clusters of light sources are operated, one at a time, in a preconfigured sequence, and the camera is preconfigured to acquire an image frame of the document, operatively coupled with the activation of each of the clusters. The direct illumination causes formation of hotspots in the acquired image frames at preconfigured locations, corresponding to the preconfigured positioning of the clusters. The processor is facilitated to cutout the preconfigured image frame portions containing the hot spots, forming clean portions of the acquired image frame, and to combine the clean portions of acquired image frame to form an output image frame of the document.
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