公开(公告)号：US06603582B1

公开(公告)日：2003-08-05

申请号：US09806583

申请日：2001-04-02

Applicant: Pascal Cotte ,  Marcel Dupouy

Inventor： Pascal Cotte ,  Marcel Dupouy

IPC: H04N104

CPC classification number: H04N1/0285 ,  H04N1/0287 ,  H04N1/1013 ,  H04N1/1043 ,  H04N1/193 ,  H04N2201/0436

Abstract: The document (12) is placed on a plane support (14) defining an object plane. The apparatus (10) includes a camera (16) situated at a distance from the document, and having an objective lens system forming an image of the document on an image plane. The camera has a photosensitive sensor scanning a line of the image plane in a first direction, and first motor means suitable for moving the sensor in controlled manner in a second direction that is distinct from the first in such a manner as to sweep the surface of the image plane in said second direction. At least one light generator (20) is also provided suitable for forming a narrow strip of light (36) on the object plane and oriented parallel to said first direction, the generator also including second motor means suitable for moving the strip of light in controlled manner so as to sweep the surface of the object plane parallel to said second direction. Servo-control means provide servo-control between the first and second motor means so as to ensure that the scan line in the image plane coincides with the strip of light on the object plane.

Abstract translation: 文件（12）被放置在限定对象平面的平面支撑件（14）上。 该装置（10）包括位于离文件一定距离处的相机（16），并且具有在图像平面上形成原稿图像的物镜系统。 照相机具有光敏传感器，沿第一方向扫描图像平面的一行，第一电动机装置适合于以与第一方向不同的第二方向以受控的方式移动传感器， 在所述第二方向上的图像平面。 还提供了至少一个光发生器（20），其适于在物平面上形成狭窄的光条（36）并且平行于所述第一方向定向，所述发生器还包括适于将被控制的光线移动的第二电动机装置 以便平行于所述第二方向扫掠物体表面。 伺服控制装置在第一和第二电动机装置之间提供伺服控制，以确保图像平面中的扫描线与物平面上的光条重合。

公开(公告)号：US20070223058A1

公开(公告)日：2007-09-27

申请号：US11628611

申请日：2005-05-30

Applicant: Pascal Cotte ,  Damien Dupraz

Inventor： Pascal Cotte ,  Damien Dupraz

IPC: H04N1/193

CPC classification number: G01J3/46 ,  G01J3/462 ,  G01J3/51 ,  G01J3/513 ,  G01J3/524 ,  H04N1/1013 ,  H04N1/1043 ,  H04N1/193

Abstract: The scanner comprises an integrated photosensitive linear sensor (20) comprising N parallel lines of photosites, where N≧4, and preferably N≧6, with each line of photosites being associated with a respective bandpass optical filter. For each scanning step and for each pixel of the analyzed line, it delivers N corresponding quantized partial measurement values, each representative of the spectral reflectance of the document sensed through respective ones of the N filters. Spectral reconstruction means operate using an extrapolation method based on training from reference color samples, having a memory (42) storing a knowledge base formed from known spectral reflectance values of said reference samples, and a neural network (40) receiving as inputs the N quantized partial values and delivering as output at least one reconstituted quantized value representative of the spectral reflectance of the corresponding pixel of the document.

Abstract translation: 该扫描器包括一个包含N个平行的光斑线的集成的光敏线性传感器（20），其中N≥4，最好是N≥6，每一行的光子都与相应的带通滤光器相关联。 对于每个扫描步骤，并且对于分析线的每个像素，它传送N个对应的量化部分测量值，每个代表通过N个滤波器中的相应滤波器感测的原稿的光谱反射率。 光谱重建装置使用基于来自参考颜色样本的训练的外插方法进行操作，具有存储由所述参考样本的已知光谱反射率值形成的知识库的存储器（42），以及作为输入接收N量化的 部分值并作为输出递送表示文档的相应像素的光谱反射率的至少一个重构量化值。