公开(公告)号：US06327056B1

公开(公告)日：2001-12-04

申请号：US09401265

申请日：1999-09-23

Applicant: Chi-pin Tsai ,  Hung-chou Chiu

Inventor： Chi-pin Tsai ,  Hung-chou Chiu

IPC: H04N104

CPC classification number: H04N1/4097 ,  H04N2201/0458

Abstract: An image scanner with an image correction function generates a primary image and an auxiliary image of a document. The image scanner includes an image sensing module, a lens module, a scanning platform, a primary light source and an auxiliary light source. The primary light source illuminates the document from a first optical angle and the auxiliary light source illuminates the document from a second optical angle. During alternate illumination by the primary and auxiliary light sources, the scanner respectively generates two images for each document, one of which is a primary image and the other of which is an auxiliary image. The auxiliary image, which includes information concerning damage to the document, is used to correct the primary image, either transmitting the images to a host for further processing, or by processing the images within the scanner.

Abstract translation: 具有图像校正功能的图像扫描仪产生文档的主图像和辅助图像。 图像扫描器包括图像感测模块，透镜模块，扫描平台，初级光源和辅助光源。 主光源从第一光学角度照射文件，辅助光源从第二光学角度照射文件。 在主要和辅助光源的交替照明期间，扫描器分别为每个文档产生两个图像，其中一个是主图像，另一个是辅助图像。 包括关于文件损坏的信息的辅助图像用于校正主图像，将图像发送到主机进行进一步处理，或者通过处理扫描仪内的图像。