Edge emitter as a directional line source
    1.
    发明授权
    Edge emitter as a directional line source 失效
    边缘发射器作为方向线源

    公开(公告)号:US5525866A

    公开(公告)日:1996-06-11

    申请号:US369598

    申请日:1995-01-06

    摘要: A broadband line source that is directional, rugged, compact, spatially and temporally uniform, stable, without the need for warmup, and relatively easy to implement. The source can be in single-color or multi-color, and it can be used, for example, in a scanner. In one embodiment, the line source includes a first thin-film electroluminescent stack with at least a bottom electrode, a top electrode, and a first active film between the two electrodes. The active film generates radiation in an area that has a width and a length, with the length being larger than the width. The length of the area sets the length of the line radiation, which is substantially homogenous along the line. In another embodiment, three of such stacks are encapsulated through thin-film processes by a cap, which sits on a substrate. The cap has one side surface that is more transmissive to radiation. The generated radiation is directed by the cap to be emitted at the more transmissive side surface to produce a single-color or a multi-color line source.

    摘要翻译: 宽带线路方向,坚固,紧凑,空间和时间均匀,稳定,无需预热,且相对容易实施。 源可以是单色或多色,并且可以用于例如扫描仪中。 在一个实施例中,线源包括在两个电极之间具有至少底部电极,顶部电极和第一有源膜的第一薄膜电致发光堆叠。 活性膜在具有宽度和长度的区域中产生辐射,其长度大于宽度。 该区域的长度设定线辐射的长度,其沿着该线基本均匀。 在另一个实施例中,三个这样的堆叠通过位于基板上的盖子通过薄膜工艺进行封装。 盖具有对辐射更透射的一个侧表面。 产生的辐射由帽引导以在更透射的侧表面上发射以产生单色或多色线源。

    SPECTRAL CALIBRATION OF IMAGING DEVICES
    2.
    发明申请
    SPECTRAL CALIBRATION OF IMAGING DEVICES 审中-公开
    成像装置的光谱校准

    公开(公告)号:US20130229530A1

    公开(公告)日:2013-09-05

    申请号:US13410595

    申请日:2012-03-02

    IPC分类号: H04N17/02 H04N5/76

    摘要: Determining, applying and storing model spectral response parameters used to correct colors in a digital image. The model spectral response parameters may be estimated through a recursive error analysis and applied or stored to all digital imaging devices of a particular type, thereby occupying minimal firmware storage space and permitting on the fly correction of images.

    摘要翻译: 确定,应用和存储用于校正数字图像中颜色的模型光谱响应参数。 可以通过递归误差分析来估计模型光谱响应参数,并将其应用或存储到特定类型的所有数字成像设备,从而占据最小的固件存储空间并允许对图像的飞行校正。

    System and method for color correcting electronically captured images by determining input media types using color correlation matrix

    公开(公告)号:US06985622B2

    公开(公告)日:2006-01-10

    申请号:US09960777

    申请日:2001-09-21

    申请人: Paul M. Hubel

    发明人: Paul M. Hubel

    IPC分类号: G06K9/00

    CPC分类号: H04N1/6094

    摘要: A system and method for color correcting electronically captured input images utilizes a correlation between the input images and a set of reference images of different media types to determine the media type of the input images. In an exemplary embodiment, the correlation is performed using a media correlation matrix, which includes media characteristic data from the different media types. The media type information of the input images is used to customize the color correction procedure being performed on the input images. The customization of the color correction procedure ensures that the final images are accurate reproduction of the input images with respect calorimetric or perceptual match.

    Vertical color filter sensor group array with full-resolution top layer and lower-resolution lower layer
    4.
    发明授权
    Vertical color filter sensor group array with full-resolution top layer and lower-resolution lower layer 有权
    具有全分辨率顶层和低分辨率下层的垂直滤色器传感器组阵列

    公开(公告)号:US07339216B1

    公开(公告)日:2008-03-04

    申请号:US11285470

    申请日:2005-11-22

    IPC分类号: H01L31/00

    摘要: An array of vertical color filter (VCF) sensor groups, optionally including or coupled to circuitry for converting photogenerated carriers produced in the sensors to electrical signals, and methods for reading out any embodiment of the array. The array has a top layer (including the top sensors of the sensor group) and at least one low layer including other ones of the sensors. Only the top layer can be read out with full resolution. Each low layer can only be read out with less than full resolution to generate fewer sensor output values than the total number of pixel sensor locations. Typically, the sensor groups are arranged in cells, each cell including a S sensor groups (e.g., S=4), with S sensors in the top layer and fewer than S sensors in each low layer of the cell. Typically, each cell includes at least one shared sensor (a sensor shared by two or more VCF sensor groups) in each low layer, and each cell includes sensor selection switches (e.g., transistors) between the cell's sensors and a sense node.

    摘要翻译: 垂直滤色器(VCF)传感器组的阵列,可选地包括或耦合到用于将在传感器中产生的光生载流子转换为电信号的电路,以及用于读出阵列的任何实施例的方法。 该阵列具有顶层(包括传感器组的顶部传感器)和至少一个低层,包括其他传感器。 只有顶层才能以全分辨率读出。 每个低层只能以少于全分辨率读出,以产生比像素传感器位置总数少的传感器输出值。 通常,传感器组被布置在单元中,每个单元包括S个传感器组(例如,S = 4),S个传感器在顶层中,并且小于单元的每个低层中的S个传感器。 通常,每个小区包括在每个低层中的至少一个共享传感器(由两个或更多个VCF传感器组共享的传感器),并且每个小区包括小区的传感器和感测节点之间的传感器选择开关(例如,晶体管)。

    Vertical color filter sensor group with carrier-collection elements of different size and method for fabricating such a sensor group
    5.
    发明授权
    Vertical color filter sensor group with carrier-collection elements of different size and method for fabricating such a sensor group 有权
    具有不同尺寸的载体收集元件的垂直滤色器传感器组以及用于制造这种传感器组的方法

    公开(公告)号:US07166880B2

    公开(公告)日:2007-01-23

    申请号:US10975093

    申请日:2004-10-27

    IPC分类号: H01L31/06

    摘要: A vertical color filter sensor group formed on a substrate (preferably a semiconductor substrate) and including at least two vertically stacked, photosensitive sensors, and an array of such sensor groups. In some embodiments, a carrier-collection element of at least one sensor of the group has substantially larger area, projected in a plane perpendicular to a normal axis defined by a top surface of a top sensor of the group, than does each minimum-sized carrier-collection element of the group. In some embodiments, the array includes at least two sensor groups that share at least one carrier-collection element. Optionally, the sensor group includes at least one filter positioned relative to the sensors such that radiation that has propagated through or reflected from the filter will propagate into at least one sensor of the group.

    摘要翻译: 形成在基板(优选半导体基板)上并且包括至少两个垂直堆叠的光敏传感器和这种传感器组的阵列的垂直滤色器传感器组。 在一些实施例中,该组的至少一个传感器的载体收集元件具有基本上更大的面积,投影在垂直于由组的顶部传感器的顶表面限定的法线轴的平面内,而不是每个最小尺寸 集团的载体收集要素。 在一些实施例中,阵列包括共享至少一个载体收集元件的至少两个传感器组。 可选地,传感器组包括相对于传感器定位的至少一个过滤器,使得已经传播通过过滤器或从过滤器反射的辐射将传播到该组的至少一个传感器中。

    CAMERA TEST AND CALIBRATION BASED ON SPECTRAL MONITORING OF LIGHT
    7.
    发明申请
    CAMERA TEST AND CALIBRATION BASED ON SPECTRAL MONITORING OF LIGHT 审中-公开
    基于光谱的相机测试和校准

    公开(公告)号:US20120314086A1

    公开(公告)日:2012-12-13

    申请号:US13491427

    申请日:2012-06-07

    IPC分类号: H04N17/06

    CPC分类号: H04N17/002

    摘要: Systems and methods for testing and calibrating camera modules based on a benchmark standard are provided. The systems can include a receptacle for receiving a camera module under test and a spectrometer. The test station can capture a test measurement using the camera module under test while contemporaneously capturing a true measurement using the spectrometer. Using the true measurement, the test station can predict how the benchmark standard would have performed in those conditions and compare that expected performance to the test measurement. Any differences can be stored in memory within the camera module under test for later retrieval to optimize image processing.

    摘要翻译: 提供了基于基准标准测试和校准相机模块的系统和方法。 该系统可以包括用于接收待测相机模块的插座和光谱仪。 测试台可以使用测试中的相机模块捕获测试测量,同时使用光谱仪捕获真实的测量。 使用真实的测量,测试台可以预测基准测试标准在这些情况下将如何进行,并将该预期性能与测试测量值进行比较。 任何差异可以存储在被测相机模块内的存储器中,以供以后检索以优化图像处理。

    White point determination using correlation matrix memory
    9.
    发明授权
    White point determination using correlation matrix memory 失效
    白点确定使用相关矩阵记忆

    公开(公告)号:US6038339A

    公开(公告)日:2000-03-14

    申请号:US971053

    申请日:1997-11-14

    摘要: Color digital imaging quality is improved by quickly, accurately and robustly estimating illuminant information associated with a color digital image to correct color of the image based on the illuminant. A "correlation matrix memory" or "associative matrix memory" is used to achieve identical results to the Color in Perspective method, and to improve it by adding Bayesian or other correlation statistics. The new method is insensitive to aperture colors and provides an effective framework on top of estimation. It will effortlessly return the maximum likelihood answer. A correlation matrix memory is built to correlate the data from any picture image to reference images under a range of illuminants. When a camera, scanner, or the like, produces a picture image, the data is converted to chromaticity and a vector is created corresponding to the values existing in the scene. This vector is multiplied by each column in the correlation matrix giving a new matrix. Each column is then summed, and the resulting values form a vector that represents the likelihood of each reference source being the illuminant of the scene. The vector values can be density plotted where each value is plotted at the chromaticity of the illumination for that particular column. From this plot normal statistical methods can be used to estimate the likely illumination of the scene. Greatly reduced computational requirements result because simple binary matrix algorithms replace complex geometrical calculations

    摘要翻译: 通过快速,准确和鲁棒地估计与彩色数字图像相关联的光源信息来改善彩色数字成像质量,以基于光源校正图像的颜色。 使用“相关矩阵存储器”或“关联矩阵存储器”来实现与透视方法相同的结果,并且通过添加贝叶斯或其他相关统计来改进它。 新方法对孔径颜色不敏感,并提供了一个有效的框架。 它将毫不费力地返回最大似然答案。 建立相关矩阵存储器以将来自任何图像图像的数据与一系列发光体下的参考图像相关联。 当照相机,扫描仪等产生图像时,将数据转换为色度,并根据场景中存在的值创建矢量。 该向量乘以相关矩阵中的每列,给出一个新的矩阵。 然后将每列相加,并且所得到的值形成一个向量,其表示每个参考源是场景的光源的可能性。 矢量值可以是密度绘制的,其中每个值在该特定列的照明的色度处绘制。 从这个图中可以使用正态统计方法来估计场景的可能照度。 因为简单的二进制矩阵算法取代了复杂的几何计算,所以大大减少了计算量

    Automatic white balance detection and correction of an image captured in a digital camera
    10.
    发明授权
    Automatic white balance detection and correction of an image captured in a digital camera 失效
    在数码相机中拍摄的图像的自动白平衡检测和校正

    公开(公告)号:US06411331B1

    公开(公告)日:2002-06-25

    申请号:US08808918

    申请日:1997-02-28

    IPC分类号: H04N973

    CPC分类号: H04N9/735

    摘要: A digital camera includes a lens and a plurality of color filters adjacent the lens. An array of detectors such as CCDs each receive, through the lens and a corresponding one of the color filters, light reflected from a scene. Each detector outputs a signal representative of an amount of light it receives. Circuitry is connected to the array for processing the signals from the detectors and generating a set of digital image data including a chromaticity value and a luminance value of a plurality of pixels representing an uncorrected image of the scene. A control circuit maps a two-dimensional representation of the digital image data into a two-dimensional representation of a set of reference image data and adjusts selected ones of the values of the set of digital image data in accordance with a predetermined transform to white balance the uncorrected image of the scene and produce a modified set of digital image data representing a corrected image of the scene.

    摘要翻译: 数码相机包括透镜和与透镜相邻的多个滤色器。 诸如CCD的检测器阵列各自通过透镜和对应的一个滤色器从场景反射的光接收。 每个检测器输出表示其接收的光量的信号。 电路连接到阵列,用于处理来自检测器的信号,并产生一组数字图像数据,包括表示场景的未校正图像的多个像素的色度值和亮度值。 控制电路将数字图像数据的二维表示映射成一组参考图像数据的二维表示,并且根据对白平衡的预定变换来调整该组数字图像数据中的选定值 该场景的未校正图像并且产生表示场景的校正图像的经修改的数字图像数据集合。