公开(公告)号：US06262816B1

公开(公告)日：2001-07-17

申请号：US09072878

申请日：1998-05-05

Applicant: Michael Rindsig ,  Jørgen Rasmussen

Inventor： Michael Rindsig ,  Jørgen Rasmussen

IPC: H04N104

CPC classification number: H04N1/32448 ,  H04N1/0473 ,  H04N1/12 ,  H04N1/193 ,  H04N1/32358 ,  H04N2201/02439 ,  H04N2201/0428 ,  H04N2201/04755 ,  H04N2201/04794

Abstract: There is provided an optical scanner collecting information from an original by means of sweeping scan. The scanner comprises a memory working as a buffer between the scanner and an external unit receiving data from the scanner. According to the invention and in order to reduce mechanical vibrations from displacement means displacing the original relative to the scanner at a feed rate, the scanner comprises control means for controlling the magnitude of the feed rate. The feed rate is adjusted according to a procedure comprising a first step: if the memory has capacity for a higher data rate and if said feed rate is less than a preferred value, then said feed rate is increased by a value that is a fraction of said preferred value. Further, the scanner may comprise a data processor for maintaining a preferred line resolution while the feed rate is below the predetermined value.

Abstract translation: 提供了通过扫描扫描从原件收集信息的光学扫描仪。 扫描器包括作为扫描仪和外部单元之间的缓冲器的存储器，该外部单元从扫描器接收数据。 根据本发明并且为了减少来自位移的机械振动，意味着以原料速度相对于扫描仪移动原稿，扫描仪包括用于控制进给速度大小的控制装置。 根据包括第一步骤的程序调节进给速率：如果存储器具有较高数据速率的容量，并且如果所述进给速率小于优选值，则所述进给速率增加一个小于或等于 所述优选值。 此外，扫描器可以包括用于在进给速率低于预定值的情况下维持优选的行分辨率的数据处理器。

公开(公告)号：US06295383B1

公开(公告)日：2001-09-25

申请号：US09170394

申请日：1998-10-13

Applicant: Asbjørn Smitt ,  Michael Rindsig ,  Jørgen Rasmussen

Inventor： Asbjørn Smitt ,  Michael Rindsig ,  Jørgen Rasmussen

IPC: G06K940

CPC classification number: G06T5/009

Abstract: An optical scanner and a method of operating an optical scanner comprising: a light source, a line detector detecting pixel intensity information, and a computer having a memory wherein the computer is capable of controlling the optical scanner such that the detected pixel intensity can be adjusted and wherein the memory holds a procedure comprising the steps of: initially generating line profile data comprising pixel intensity information by scanning a reference, initially generating first smoothed line profile data comprising pixel intensity information by scanning a background, whenever required generating second smoothed line profile data comprising pixel intensity information by scanning a background. Based on the profile data, generating the variance between said first smoothed line profile data and said second smoothed line profile data, generating the combination of said variance and said line profile data, and adjusting the detected pixel intensity to compensate for pixel variations in the optical scanner. Thus it is possible to correct detected pixel intensities in an optical scanner.

Abstract translation: 一种光学扫描器和操作光学扫描器的方法，包括：光源，检测像素强度信息的线检测器和具有存储器的计算机，其中计算机能够控制光学扫描器，使得可以调整检测到的像素强度 并且其中所述存储器保持包括以下步骤的过程：首先通过扫描参考来生成包括像素强度信息的线轮廓数据，当需要时产生第二平滑线轮廓数据，首先产生包括像素强度信息的第一平滑线轮廓数据，通过扫描背景 通过扫描背景来包括像素强度信息。 基于轮廓数据，生成所述第一平滑线轮廓数据和所述第二平滑线轮廓数据之间的方差，产生所述方差和所述线轮廓数据的组合，并且调整检测到的像素强度以补偿光学中的像素变化 扫描器。 因此，可以校正光学扫描仪中检测到的像素强度。