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    • 1. 发明授权
    • Bound document imager
    • 绑定文件成像器
    • US06459505B1
    • 2002-10-01
    • US09208216
    • 1998-12-08
    • Lars-Erik SwartzSteven E. ReadyDavid A. JaredXiaodong WuRobert A. Street
    • Lars-Erik SwartzSteven E. ReadyDavid A. JaredXiaodong WuRobert A. Street
    • H04N104
    • H04N1/0285H04N1/0287H04N1/02885H04N1/195H04N1/19594H04N2201/0434
    • An apparatus for imaging books or other bound documents which includes a cradle for supporting a book and an optical system positioned above the cradle. The optical system is mounted for movement along a vertical axis toward and away from the cradle. It includes an upper portion supporting a camera and mirror arrangement and a lower portion comprising a platen assembly. The upper and lower portions are mounted for independent movement along the vertical axis over a first range of travel remote from the cradle, and are coupled for movement as a single unit over a second range of travel, toward and proximate to the cradle. When the upper and lower portions are coupled, the optical system has an optical path of a predetermined length extending from the platen surface, through the mirror arrangement and through the camera.
    • 一种用于成像书籍或其他装订文件的装置,其包括用于支撑书本的托架和位于托架上方的光学系统。 光学系统被安装成沿着垂直轴线朝向和远离支架移动。 它包括支撑相机和镜子布置的上部部分和包括压板组件的下部分。 上部和下部安装成用于在远离支架的第一移动范围上沿着垂直轴线独立移动,并且被联接以便在第二行进范围内朝向和靠近托架移动作为单个单元。 当上部和下部结合时,光学系统具有从压板表面延伸的预定长度的光路,通过反射镜装置并通过照相机。
    • 3. 发明授权
    • Methods and apparatus for robust decoding of glyph address carpets
    • 用于字形地址地毯的鲁棒解码的方法和装置
    • US06208771B1
    • 2001-03-27
    • US09144518
    • 1998-08-31
    • David A. JaredL. Noah FloresDavid L. HechtRichard G. StearnsKenneth H. P. Chang
    • David A. JaredL. Noah FloresDavid L. HechtRichard G. StearnsKenneth H. P. Chang
    • G06K954
    • G06K19/06037G06K7/14
    • A captured image includes a portion of a set of two-dimensional address codes. The portion of address codes can be decoded to determine a discrete pointer uniquely defining the portion. The captured image is first processed to determine the orientation of the portion, and then decoded based on the orientation to determine the discrete pointer. To determine the orientation of the portion, the portion is first analyzed to determine values at discrete locations within the portion. The values at each location form a matrix of binary data. The values of the matrix are then correlated to determine an orientation of the captured portion of two dimensional address codes. After determining the orientation of the portion, the values can be further analyzed to determine a discrete pointer that identifies the location of the portion within the address space defined by the two-dimensional address codes.
    • 捕获的图像包括一组二维地址码的一部分。 地址码的部分可被解码以确定唯一地限定该部分的离散指示器。 首先处理捕获的图像以确定该部分的取向,然后基于取向解码以确定离散指针。 为了确定部分的方向,首先分析该部分以确定该部分内的离散位置处的值。 每个位置的值形成二进制数据矩阵。 然后将矩阵的值相关以确定二维地址码的捕获部分的取向。 在确定该部分的方向之后,可以进一步分析这些值以确定用于标识由二维地址码定义的地址空间内部分的位置的离散指针。
    • 5. 发明授权
    • Apparatus and method for scanning a bound color document using a wedge
shaped platen
    • 使用楔形压板扫描结合的彩色文件的装置和方法
    • US5847846A
    • 1998-12-08
    • US635100
    • 1996-04-17
    • Xiaodong WuDavid A. Jared
    • Xiaodong WuDavid A. Jared
    • G03B27/62G03G15/04H04N1/04H04N1/195G03G15/00G03G15/041H04N1/46
    • H04N1/195G03G15/04G03G15/0435H04N2201/0434
    • A color scanner with a wedge shaped platen sequentially records opposing pages of a bound document positioned thereon using a single imaging station. The scanner includes a partially reflective mirror positioned between the wedge shaped platen. The two sides of the wedge shaped platen are illuminated with polarized light having angles orthogonal to each other. Polarized illuminators operate in combination with polarization analyzers positioned under the wedge shaped platen to sequentially image the opposing pages of the bound document. A controller insures that polarized light sources consisting of the three primary colors red, green, and blue, sequentially expose each opposing page of the bound document. The opposing pages of the bound document are focused through optics onto the single imaging station. In another embodiment, light polarized by analyzers positioned under the wedge shaped platen is filtered by a polarizer positioned in front of the focal optics before reaching the single imaging station. The controller first exposes one side of the platen and then the other to each of the three primary colors red, green, and blue. Digital representations of each primary color are combined to form a single composite image for each opposing page of the bound document. In one arrangement, the imaging station is a two-dimensional array of detectors which sense an image of a page of the bound document projected thereon. In another arrangement, the imaging station is a photoconductive belt which when exposed by the polarized light records a latent image thereon. In either arrangement, a one page imaging station records opposing pages of a bound document either electronically or on print media, one page at a time.
    • 具有楔形压板的彩色扫描器使用单个成像站顺序地记录定位在其上的装订文档的相对页面。 扫描器包括位于楔形压板之间的部分反射镜。 楔形台板的两侧用具有彼此正交的角度的偏振光照射。 极化照明器与位于楔形压板下方的偏振分析仪结合操作,以顺序地对装订文档的相对页面进行成像。 控制器确保由三原色红色,绿色和蓝色组成的偏振光源顺序曝光装订文档的每个相对页面。 绑定文档的相对页面通过光学器件聚焦到单个成像站上。 在另一个实施例中,位于楔形压板下方的分析仪所偏振的光在到达单个成像站之前被放置在焦点光学器前面的偏振器进行滤波。 控制器首先暴露压板的一侧,然后将另一侧暴露于三原色中的每一个,红色,绿色和蓝色。 每个原色的数字表示被组合以形成绑定文档的每个相对页面的单个合成图像。 在一种布置中,成像站是检测器的二维阵列,其感测在其上投影的装订文档的页面的图像。 在另一种布置中,成像站是光电导带,当通过偏振光曝光时,其将潜像记录在其上。 在任一方案中,一页成像站以电子方式或印刷媒体记录一个装订文档的相对页面,一次一页。
    • 6. 发明授权
    • Macrodetector based image conversion system
    • 基于宏检测器的图像转换系统
    • US5790699A
    • 1998-08-04
    • US549379
    • 1995-10-27
    • Warren B. JacksonDavid A. JaredSumit BasuDavid K. Biegelsen
    • Warren B. JacksonDavid A. JaredSumit BasuDavid K. Biegelsen
    • H04N1/40G06T7/60H04N1/409G06K9/48G06K9/32G06K9/36
    • H04N1/4092
    • An image detection and pixel processing system includes a plurality of detector elements for receiving an image. The detector elements are subdivided into a plurality of macrodetectors, with each macrodetector constituting four or more detector elements, and with each macrodetector providing information for determining both a total light intensity value within the macrodetector and a centroid of light intensity indicative of light intensity position within the macrodetector. An image processing assembly receives information from the plurality of macrodetectors, with the image processing assembly relating a pixel and its encompassed subpixel area to each corresponding macrodetector, and further determining the total light intensity within the pixel and the centroid of light intensity within the subpixel. The image processing assembly is capable of rendering each subpixel area as an edge when magnitude of the centroid of light intensity is greater than a predetermined threshold.
    • 图像检测和像素处理系统包括用于接收图像的多个检测器元件。 检测器元件被细分为多个宏检测器,每个宏检测器构成四个或更多个检测器元件,并且每个宏检测器提供用于确定宏检测器内的总光强度值的信息,以及指示宏观检测器内的光强度位置的光强度的质心 宏检测器 图像处理组件从多个宏检测器接收信息,图像处理组件将像素及其包含的子像素区域相关联到每个对应的宏检测器,并进一步确定像素内的总光强度和子像素内的光强度的质心。 当光强度的大小大于预定阈值时,图像处理组件能够将每个子像素区域呈现为边缘。
    • 8. 发明授权
    • Pixel elements having resistive divider elements
    • 具有电阻分压元件的像素元件
    • US5572344A
    • 1996-11-05
    • US368131
    • 1995-01-03
    • Warren B. JacksonDavid K. BiegelsenDavid A. JaredRichard L. Weisfield
    • Warren B. JacksonDavid K. BiegelsenDavid A. JaredRichard L. Weisfield
    • G02F1/133G02F1/1343G09F9/30G02F1/1393
    • G02F1/134309
    • Pixel elements capable of imaging spatial intensity variations within themselves, and displays comprised of such elements, are described. The pixel elements include a resistance layer disposed between at least one set of electrodes. Over that resistance layer is a liquid crystal material. Over that liquid crystal material is a field electrode. In operation a voltage, whose components are referenced to the field electrode, is applied across the resistance layer. The resulting current flow induces a spatially varying electric field between the field electrode and the resistance layer. That spatially varying electric field results in a corresponding response by the liquid crystal layer which results in a spatially varying light transmission through the liquid crystal material. By varying the voltage across the resistance layer and/or the voltage applied to the field electrode varying amounts of light transmission can be achieved.
    • 描述了能够对其内的空间强度变化进行成像的像素元件以及由这些元件组成的显示器。 像素元件包括设置在至少一组电极之间的电阻层。 在该电阻层之上是液晶材料。 在该液晶材料上是场电极。 在操作中,其分量参考场电极的电压跨越电阻层施加。 所得到的电流在场电极和电阻层之间引起空间变化的电场。 该空间变化的电场导致液晶层的相应响应,这导致通过液晶材料的空间变化的光透射。 通过改变跨越电阻层的电压和/或施加到场电极的电压可以实现不同的光透射量。
    • 10. 发明授权
    • Glyph address carpet methods and apparatus for providing location information in a multidimensional address space
    • 字形地址地毯方法和装置,用于在多维地址空间中提供位置信息
    • US06327395B1
    • 2001-12-04
    • US09144251
    • 1998-08-31
    • David L. HechtDavid A. JaredL. Noah FloresRichard G. StearnsKenneth H. P. Chang
    • David L. HechtDavid A. JaredL. Noah FloresRichard G. StearnsKenneth H. P. Chang
    • G06K954
    • G06K19/06037G06K7/14G06K7/1443
    • A user interface is implemented using visual indicia and a background for the visual indicia that encodes address information. The background appears visually as a stipple pattern, but is implemented using glyphs which form an address carpet that encodes address information uniquely identifying each location of the user interface. An image capture device is used to capture an area of the address carpet that is at or near visual indicia of interest to the user while selecting a location in the visual indicia. The image capture device captures the area of interest, and transmits the image area to a computer for processing. The computer first determines the proper orientation of the image, and then decodes the information encoded by the glyphs. The decoding results in an X, Y address identifying the location of the captured area in the address carpet and, by reference, the address of the selected location. Based on the address, the computer may perform an operation associated with the area.
    • 使用视觉标记和编码地址信息的视觉标记的背景来实现用户界面。 背景在视觉上呈现为点状图案,但是使用形成地址毯的字形来实现,该地址毯编码唯一地标识用户界面的每个位置的地址信息。 图像采集装置用于在选择视觉标记中的位置时捕获处于或接近用户感兴趣的可视标记的地址毯的区域。 图像捕获设备捕获感兴趣的区域,并将图像区域发送到计算机进行处理。 计算机首先确定图像的正确方向,然后解码由字形编码的信息。 解码产生一个X,Y地址,用于标识地址毯中捕获区域的位置,并通过引用确定所选位置的地址。 基于该地址,计算机可以执行与该区域相关联的操作。