公开(公告)号：US20150138611A1

公开(公告)日：2015-05-21

申请号：US14086812

申请日：2013-11-21

Applicant: XEROX CORPORATION

Inventor： Paul Simon GOLDING ,  Michael John WILSHER

IPC: H04N1/00

CPC classification number: H04N1/00087 ,  H04N1/00018 ,  H04N1/00034 ,  H04N1/00047 ,  H04N1/0005 ,  H04N1/00063 ,  H04N1/0057 ,  H04N1/1017 ,  H04N2201/0003 ,  H04N2201/0093

Abstract: The present application discloses methods and systems for calibrating a scanning system. The scanning system comprises a light-transmissive platen defining a top surface and a bottom surface, a controller, a document handler, and a scanner bar for recording image data from documents at various document heights. In one embodiment, the calibration method proposes the use of two calibration strips in a document scanning system that has both platen scanning and Constant Velocity Transport (CVT) scanning modes. In another embodiment, a scanner is disclosed with a dual calibration target or a single calibration target that is manufactured with two (2) different heights to correct the illumination profile at the CVT scanning height or at the platen scanning height.

Abstract translation: 本申请公开了用于校准扫描系统的方法和系统。 扫描系统包括限定顶表面和底表面的透光压板，控制器，文件处理器和用于从各种文件高度的文档记录图像数据的扫描器条。 在一个实施例中，校准方法提出了在具有压板扫描和恒定速度传输（CVT）扫描模式的文档扫描系统中使用两个校准条。 在另一个实施例中，公开了一种具有双校准目标或单个校准目标的扫描器，其被制造成具有两（2）个不同的高度，以校正CVT扫描高度处或台板扫描高度处的照明轮廓。