Optical position input system and method
    1.
    发明授权
    Optical position input system and method 有权
    光学位置输入系统及方法

    公开(公告)号:US08269750B2

    公开(公告)日:2012-09-18

    申请号:US12856161

    申请日:2010-08-13

    IPC分类号: G06F3/042

    CPC分类号: G06F3/0428

    摘要: Optical position input systems and methods determine positions of at least one pointing objects within an active touch area. At least three imager modules form images of at least one pointing objects within the active touch area. A processor computes a position of each of the at least one pointing object based upon the images formed by the at least three imager modules.

    摘要翻译: 光学位置输入系统和方法确定主动触摸区域内的至少一个指向对象的位置。 至少三个成像器模块在主动触摸区域内形成至少一个指向对象的图像。 处理器基于由至少三个成像器模块形成的图像来计算每个至少一个指向对象的位置。

    Optical Position Input System And Method
    2.
    发明申请
    Optical Position Input System And Method 有权
    光学位置输入系统和方法

    公开(公告)号:US20120038588A1

    公开(公告)日:2012-02-16

    申请号:US12856161

    申请日:2010-08-13

    IPC分类号: G06F3/041

    CPC分类号: G06F3/0428

    摘要: Optical position input systems and methods determine positions of at least one pointing objects within an active touch area. At least three imager modules form images of at least one pointing objects within the active touch area. A processor computes a position of each of the at least one pointing object based upon the images formed by the at least three imager modules.

    摘要翻译: 光学位置输入系统和方法确定主动触摸区域内的至少一个指向对象的位置。 至少三个成像器模块在主动触摸区域内形成至少一个指向对象的图像。 处理器基于由至少三个成像器模块形成的图像来计算每个至少一个指向对象的位置。

    Image sensor with optical filters having alternating polarization for 3D imaging
    3.
    发明授权
    Image sensor with optical filters having alternating polarization for 3D imaging 有权
    具有用于3D成像的交替极化的光学滤波器的图像传感器

    公开(公告)号:US09177983B2

    公开(公告)日:2015-11-03

    申请号:US13356333

    申请日:2012-01-23

    摘要: An image sensor for three-dimensional (“3D”) imaging includes a first, a second, and a third pixel unit, where the second pixel unit is disposed between the first and third pixel units. Optical filters included in the pixel units are disposed on a light incident side of the image sensor to filter polarization-encoded light having a first polarization and a second polarization to photosensing regions of the pixel units. The first pixel unit includes a first optical filter having the first polarization, the second pixel unit includes a second optical filter having the second polarization, and the third pixel unit includes a third optical filter having the first polarization.

    摘要翻译: 用于三维(“3D”)成像的图像传感器包括第一,第二和第三像素单元,其中第二像素单元设置在第一和第三像素单元之间。 包含在像素单元中的光学滤波器设置在图像传感器的光入射侧,以将具有第一偏振和第二偏振的偏振编码光滤除成像素单元的光敏区域。 第一像素单元包括具有第一偏振的第一滤光器,第二像素单元包括具有第二偏振的第二滤光器,第三像素单元包括具有第一偏振的第三滤光器。

    Method and apparatus for correcting for vignetting in an imaging system
    4.
    发明授权
    Method and apparatus for correcting for vignetting in an imaging system 有权
    用于在成像系统中校正渐晕的方法和装置

    公开(公告)号:US08823841B2

    公开(公告)日:2014-09-02

    申请号:US13528195

    申请日:2012-06-20

    CPC分类号: H04N5/3572 H04N9/045

    摘要: A method and apparatus for correcting for vignetting include associating each pixel in the two-dimensional array with a pair of polar coordinates referenced to a preselected origin pixel and partitioning the two-dimensional array of image pixels into a plurality of sectors. For each sector, the method includes computing an average R value, an average G value and an average B value; converting the average R value, the average G value and the average B value for each sector to logarithm space; comparing color gradients along a radial sector line to a gradient threshold; selecting gradients that do not exceed the threshold; using the selected gradients, estimating parameters of a model of a lens which produced the image; and, using the parameters, updating the model of the lens and correcting the image.

    摘要翻译: 用于校正渐晕的方法和装置包括将二维阵列中的每个像素与参考预选原始像素的一对极坐标相关联,并将图像像素的二维阵列分割成多个扇区。 对于每个扇区,该方法包括计算平均R值,平均G值和平均B值; 将每个扇区的平均R值,平均G值和平均B值转换为对数空间; 将沿着径向扇形线的颜色梯度与梯度阈值进行比较; 选择不超过阈值的梯度; 使用所选择的梯度,估计产生图像的透镜的模型的参数; 并使用参数,更新镜头的模型并校正图像。

    Alternative color image array and associated methods
    5.
    发明授权
    Alternative color image array and associated methods 有权
    替代彩色图像阵列及相关方法

    公开(公告)号:US08624997B2

    公开(公告)日:2014-01-07

    申请号:US13035785

    申请日:2011-02-25

    IPC分类号: H04N5/235 H04N3/14

    摘要: An image sensor includes an array of light sensitive elements and a filter array. Each filter element is in optical communication with a respective light sensitive element. The image sensor receives filtered light having a repeating pattern. Light sensitive elements in at least two successive rows alternately receive light having a first color and a second color, and light sensitive elements in common columns of the successive rows alternately receive light having the first color and the second color. Light sensitive elements in at least two additional successive rows alternately receive light having a third and a fourth color, and light sensitive elements in common columns of the additional successive rows alternately receive light having the third color and the fourth color. Output values of pairs of sampled light sensitive elements receiving light of a common color and from successive rows are combined to generate a down-sampled image.

    摘要翻译: 图像传感器包括光敏元件阵列和滤光片阵列。 每个滤光元件与相应的光敏元件光学连通。 图像传感器接收具有重复图案的滤波光。 在至少两个连续行中的感光元件交替地接收具有第一颜色和第二颜色的光,并且连续行的公共列中的光敏元件交替地接收具有第一颜色和第二颜色的光。 在至少两个附加连续行中的感光元件交替地接收具有第三和第四颜色的光,并且附加连续行的公共列中的光敏元件交替地接收具有第三颜色和第四颜色的光。 接收公共颜色光和连续行的采样光敏元件对的输出值被组合以产生下采样图像。

    IMAGE SENSOR WITH OPTICAL FILTERS HAVING ALTERNATING POLARIZATION FOR 3D IMAGING
    6.
    发明申请
    IMAGE SENSOR WITH OPTICAL FILTERS HAVING ALTERNATING POLARIZATION FOR 3D IMAGING 有权
    具有光学滤波器的图像传感器具有用于3D成像的极化极化

    公开(公告)号:US20130188023A1

    公开(公告)日:2013-07-25

    申请号:US13356333

    申请日:2012-01-23

    IPC分类号: H04N13/02 G02B27/26

    摘要: An image sensor for three-dimensional (“3D”) imaging includes a first, a second, and a third pixel unit, where the second pixel unit is disposed between the first and third pixel units. Optical filters included in the pixel units are disposed on a light incident side of the image sensor to filter polarization-encoded light having a first polarization and a second polarization to photosensing regions of the pixel units. The first pixel unit includes a first optical filter having the first polarization, the second pixel unit includes a second optical filter having the second polarization, and the third pixel unit includes a third optical filter having the first polarization.

    摘要翻译: 用于三维(“3D”)成像的图像传感器包括第一,第二和第三像素单元,其中第二像素单元设置在第一和第三像素单元之间。 包含在像素单元中的光学滤波器设置在图像传感器的光入射侧,以将具有第一偏振和第二偏振的偏振编码光滤除成像素单元的光敏区域。 第一像素单元包括具有第一偏振的第一滤光器,第二像素单元包括具有第二偏振的第二滤光器,第三像素单元包括具有第一偏振的第三滤光器。

    System and method for lens shading correction of an image sensor using splines
    7.
    发明授权
    System and method for lens shading correction of an image sensor using splines 有权
    使用花键的图像传感器的镜头遮蔽校正的系统和方法

    公开(公告)号:US08194159B2

    公开(公告)日:2012-06-05

    申请号:US12110618

    申请日:2008-04-28

    IPC分类号: H04N9/64 H04N5/20

    摘要: An image sensing system provides for accurate lens shading correction even when there is significant lens shading asymmetry and non-uniformity. A two-dimensional B-spline technique is used to determine lens shading correction surfaces. The number of zones is selected to achieve accurate correction of center, edge, and corner regions of an image. Separate lens shading correction surfaces are calculated for a set of standard illuminants to permit lens shading correction to be adapted based on the illuminant used to capture the image.

    摘要翻译: 即使存在明显的镜片遮蔽不对称性和不均匀性,图像感测系统也能提供准确的透镜阴影校正。 使用二维B样条技术来确定透镜阴影校正表面。 选择区域的数量以实现图像的中心,边缘和角区域的精确校正。 对于一组标准光源计算单独的透镜阴影校正表面,以允许基于用于捕获图像的光源来适应透镜阴影校正。

    AUTOMATIC WHITE BALANCING USING METER SENSORS
    8.
    发明申请
    AUTOMATIC WHITE BALANCING USING METER SENSORS 有权
    使用仪表传感器的自动白平衡

    公开(公告)号:US20100149403A1

    公开(公告)日:2010-06-17

    申请号:US12333104

    申请日:2008-12-11

    IPC分类号: H04N9/04

    摘要: An image sensor system includes an image sensor that can be exposed with light from an illuminated scene to produce a secondary image, a meter sensor that can be exposed with light from the illuminated scene to produce a meter secondary image, and an image processor. The image processor can be configured to determine an average pixel color in the secondary image. The image processor can also be configured to determine a white balancing point in response to the secondary image average pixel color, the meter secondary image, meter calibration information for the meter sensor, and the image calibration information for the image sensor.

    摘要翻译: 一种图像传感器系统包括:可以用来自照明场景的光进行曝光以产生二次图像的图像传感器;可以用来自照明场景的光来曝光以产生米次级图像的仪表传感器和图像处理器。 图像处理器可以被配置为确定次级图像中的平均像素颜色。 图像处理器还可以被配置为响应于二次图像平均像素颜色,仪表二次图像,用于仪表传感器的仪表校准信息和用于图像传感器的图像校准信息来确定白平衡点。

    Method And Apparatus For Correcting For Vignetting In An Imaging System
    9.
    发明申请
    Method And Apparatus For Correcting For Vignetting In An Imaging System 有权
    在成像系统中校正晕影的方法和装置

    公开(公告)号:US20130342741A1

    公开(公告)日:2013-12-26

    申请号:US13528195

    申请日:2012-06-20

    IPC分类号: H04N9/083 G06T5/00

    CPC分类号: H04N5/3572 H04N9/045

    摘要: A method and apparatus for correcting for vignetting include associating each pixel in the two-dimensional array with a pair of polar coordinates referenced to a preselected origin pixel and partitioning the two-dimensional array of image pixels into a plurality of sectors. For each sector, the method includes computing an average R value, an average G value and an average B value; converting the average R value, the average G value and the average B value for each sector to logarithm space; comparing color gradients along a radial sector line to a gradient threshold; selecting gradients that do not exceed the threshold; using the selected gradients, estimating parameters of a model of a lens which produced the image; and, using the parameters, updating the model of the lens and correcting the image.

    摘要翻译: 用于校正渐晕的方法和装置包括将二维阵列中的每个像素与参考预选原始像素的一对极坐标相关联,并将图像像素的二维阵列划分成多个扇区。 对于每个扇区,该方法包括计算平均R值,平均G值和平均B值; 将每个扇区的平均R值,平均G值和平均B值转换为对数空间; 将沿着径向扇形线的颜色梯度与梯度阈值进行比较; 选择不超过阈值的梯度; 使用所选择的梯度,估计产生图像的透镜的模型的参数; 并使用参数,更新镜头的模型并校正图像。

    Alternative Color Image Array And Associated Methods
    10.
    发明申请
    Alternative Color Image Array And Associated Methods 有权
    替代彩色图像阵列和相关方法

    公开(公告)号:US20110279705A1

    公开(公告)日:2011-11-17

    申请号:US13035785

    申请日:2011-02-25

    摘要: An image sensor includes an array of light sensitive elements and a filter array. Each filter element is in optical communication with a respective light sensitive element. The image sensor receives filtered light having a repeating pattern. Light sensitive elements in at least two successive rows alternately receive light having a first color and a second color, and light sensitive elements in common columns of the successive rows alternately receive light having the first color and the second color. Light sensitive elements in at least two additional successive rows alternately receive light having a third and a fourth color, and light sensitive elements in common columns of the additional successive rows alternately receive light having the third color and the fourth color. Output values of pairs of sampled light sensitive elements receiving light of a common color and from successive rows are combined to generate a down-sampled image.

    摘要翻译: 图像传感器包括光敏元件阵列和滤光片阵列。 每个滤光元件与相应的光敏元件光学连通。 图像传感器接收具有重复图案的滤波光。 在至少两个连续行中的感光元件交替地接收具有第一颜色和第二颜色的光,并且连续行的公共列中的光敏元件交替地接收具有第一颜色和第二颜色的光。 在至少两个附加连续行中的感光元件交替地接收具有第三和第四颜色的光,并且附加连续行的公共列中的光敏元件交替地接收具有第三颜色和第四颜色的光。 接收公共颜色光和连续行的采样光敏元件对的输出值被组合以产生下采样图像。