公开(公告)号：US06697169B1

公开(公告)日：2004-02-24

申请号：US09458115

申请日：1999-12-08

申请人： Xiaofan Feng ,  Jon Mathew Speigle

发明人： Xiaofan Feng ,  Jon Mathew Speigle

IPC分类号： G06K1502

CPC分类号： H04N1/52

摘要： A method for reproducing a continuous-tone image in a reduced medium includes a comparison step, a diffusing step, and determining a threshold value for the comparison step from a matrix of threshold values, wherein the matrix has a spatial-chromatic correlated noise pattern.

摘要翻译： 在还原介质中再现连续色调图像的方法包括比较步骤，扩散步骤，以及根据阈值矩阵确定比较步骤的阈值，其中矩阵具有空间色相关噪声模式。

公开(公告)号：US20130058582A1

公开(公告)日：2013-03-07

申请号：US13225271

申请日：2011-09-02

申请人： Petrus J.L. Van Beek ,  Chang Yuan ,  Xinyu Xu ,  Xiaofan Feng ,  Xiaofeng Fan

发明人： Petrus J.L. Van Beek ,  Chang Yuan ,  Xinyu Xu ,  Xiaofan Feng ,  Xiaofeng Fan

IPC分类号： G06K9/68

CPC分类号： G06K9/6204 ,  G06K9/6857

摘要： A system for image processing includes determining edge pixels of a model image using an edge based technique, and an angular orientation for each of the edge pixels of the model image. The system determines a lower spatial resolution model image based upon the model image and determining respective angular orientations for the lower spatial resolution model image, and determines edge pixels of an input image using an edge based technique, and an angular orientation for each of the edge pixels of the input image. The system determines a lower spatial resolution input image based upon the input image and determining respective angular orientations for the lower spatial resolution input image, and matches the lower spatial resolution model image with the lower spatial resolution input image to determine candidate locations of an object within the image and based upon the candidate locations matching the input image with the model image.

摘要翻译： 用于图像处理的系统包括使用基于边缘的技术来确定模型图像的边缘像素，以及模型图像的每个边缘像素的角度定向。 该系统基于模型图像确定较低的空间分辨率模型图像，并且确定用于较低空间分辨率模型图像的各个角度取向，并且使用基于边缘的技术来确定输入图像的边缘像素，并且针对每个边缘 输入图像的像素。 该系统基于输入图像确定较低的空间分辨率输入图像，并且确定下部空间分辨率输入图像的相应角度取向，并且将下部空间分辨率模型图像与较低空间分辨率输入图像相匹配，以确定对象的候选位置 并且基于与输入图像匹配的候选位置与模型图像。

公开(公告)号：US08483489B2

公开(公告)日：2013-07-09

申请号：US13225271

申请日：2011-09-02

申请人： Petrus J. L. Van Beek ,  Chang Yuan ,  Xinyu Xu ,  Xiaofan Feng ,  Xiaofeng Fan

发明人： Petrus J. L. Van Beek ,  Chang Yuan ,  Xinyu Xu ,  Xiaofan Feng ,  Xiaofeng Fan

IPC分类号： G06K9/64

CPC分类号： G06K9/6204 ,  G06K9/6857

摘要： A method for image processing that includes determining edge pixels of a model image using an edge based technique, and an angular orientation for each of the edge pixels of the model image. The method determines a lower spatial resolution model image based upon the model image and determining respective angular orientations for the lower spatial resolution model image. The method determines edge pixels of an input image using an edge based technique, and an angular orientation for each of the edge pixels of the input image. The method determines a lower spatial resolution input image based upon the input image and determining respective angular orientations for the lower spatial resolution input image. The method matches the lower spatial resolution model image with the lower spatial resolution input image to determine candidate locations of an object within the input image and based upon the candidate locations matching the input image with the model image.

摘要翻译： 一种用于图像处理的方法，其包括使用基于边缘的技术来确定模型图像的边缘像素，以及模型图像的每个边缘像素的角度取向。 该方法基于模型图像确定较低空间分辨率模型图像，并确定较低空间分辨率模型图像的各个角度取向。 该方法使用基于边缘的技术来确定输入图像的边缘像素，并且确定输入图像的每个边缘像素的角度取向。 该方法基于输入图像确定较低的空间分辨率输入图像，并确定较低空间分辨率输入图像的各个角度取向。 该方法将较低空间分辨率模型图像与较低空间分辨率输入图像相匹配，以确定输入图像内的对象的候选位置，并且基于与输入图像与模型图像匹配的候选位置。

公开(公告)号：US20120154708A1

公开(公告)日：2012-06-21

申请号：US12972928

申请日：2010-12-20

申请人： Xiaofan Feng ,  Dan Zhang

发明人： Xiaofan Feng ,  Dan Zhang

IPC分类号： G02F1/1335

CPC分类号： G09G3/3611 ,  G09G3/3413 ,  G09G2320/0646 ,  G09G2320/0666

摘要： A method of illuminating a display includes spatially varying the luminance of a multi-colored light source illuminating a plurality of pixels of the display in response to receiving a plurality of pixel values, and varying the transmittance of a light valve of the display having filters corresponding to the multi-colored light source in response to receiving the plurality of pixel values. The illumination is modified for a plurality of pixel values based upon modification of the luminance of the light source and varying the transmittance of the light valve. The modifying is further based upon modification of at least one of the multi-colored light sources together with modification of the transmittance of the light valve corresponding to at least one of the filters of a different color than the at least one of the multi-colored light sources in such a manner that increases the color gamut of the display.

摘要翻译： 照明显示器的方法包括：响应于接收到多个像素值而对显示器的多个像素照亮多色光源的空间变化的亮度，并且改变具有对应的滤光器的显示器的光阀的透射率 响应于接收到多个像素值而到达多色光源。 基于光源的亮度的改变和改变光阀的透射率，对多个像素值修改照明。 修饰还基于对多色光源中的至少一种的修改，以及与至少一种多色光源的至少一种不同颜色的至少一种滤光器对应的光阀的透射率的修改， 光源以增加显示器的色域的方式。

公开(公告)号：US20120081388A1

公开(公告)日：2012-04-05

申请号：US12894501

申请日：2010-09-30

申请人： Hao Pan ,  Xiaofan Feng

发明人： Hao Pan ,  Xiaofan Feng

IPC分类号： G09G5/02

CPC分类号： G09G3/3611 ,  G09G3/2044 ,  G09G5/36 ,  G09G2320/0242 ,  G09G2320/0276 ,  G09G2320/068

摘要： A method for image processing for a liquid crystal display comprising determining a dithered image and an interpolated based upon the image. The images are blended to form a blended image for displaying on the display.

摘要翻译： 一种用于液晶显示器的图像处理方法，包括确定抖动图像和基于图像进行内插。 混合图像以形成混合图像以在显示器上显示。

公开(公告)号：US06356672B1

公开(公告)日：2002-03-12

申请号：US09263931

申请日：1999-03-08

申请人： Xiaofan Feng ,  Scott J. Daly

发明人： Xiaofan Feng ,  Scott J. Daly

IPC分类号： G06K700

CPC分类号： H04N9/045

摘要： A method for color registration in a image capturing device includes arranging multiple rows and multiple columns of pixel capturing elements in a sensor array; capturing a luminance component of the image and generating a luminance output signal therefrom; capturing in another row and in alternate columns thereof, a first color component, capturing a luminance component in the remaining columns thereof, and generating a first color-luminance output signal therefrom; and capturing, in another row and in alternate columns thereof, a second color component, capturing a luminance component in the remaining columns thereof, and generating a second color-luminance output signal therefrom. A system for color registration in a image capturing device includes a sensor array having multiple rows and multiple columns of pixel capturing elements therein, wherein a first row has pixel capturing elements for capturing a luminance component of the image at a first resolution; another row and alternate columns thereof have pixel capturing elements for capturing a first color component at one-half of said first resolution, and which contain pixel capturing elements in the remaining columns thereof for capturing a luminance component thereof; and another row and alternate columns thereof have pixel capturing elements for capturing a second color component at one-half said first resolution, and which contain pixel capturing elements in the remaining columns thereof for capturing a luminance component thereof.

摘要翻译： 一种用于图像捕获装置中的颜色配准的方法包括：在传感器阵列中排列多行和多列像素捕获元件; 捕获图像的亮度分量并从其生成亮度输出信号; 在另一行和其他列中捕获第一颜色分量，捕获其余列中的亮度分量，并从其生成第一颜色 - 亮度输出信号; 以及在另一行和其他列中捕获第二颜色分量，捕获其余列中的亮度分量，并从其生成第二颜色 - 亮度输出信号。 一种用于图像捕获装置中的颜色配准的系统包括其中具有多行和多列像素捕获元件的传感器阵列，其中第一行具有用于以第一分辨率捕获图像的亮度分量的像素捕获元件; 另一排及其交替列具有用于捕获所述第一分辨率的一半的第一颜色分量的像素捕获元件，并且其中包含用于捕获其亮度分量的其余列中的像素捕获元件; 并且另一行和替代列具有用于捕获第二分辨率的二分之一的第二颜色分量的像素捕获元件，并且其中包含用于捕获其亮度分量的其余列中的像素捕获元件。

公开(公告)号：US20120082385A1

公开(公告)日：2012-04-05

申请号：US12894676

申请日：2010-09-30

申请人： Xinyu Xu ,  Xiaofan Feng

发明人： Xinyu Xu ,  Xiaofan Feng

IPC分类号： G06K9/48 ,  G06K9/68

CPC分类号： G06K9/6857

摘要： A method for image processing includes decomposing a model image into at least one lower resolution image and determining generally rotation invariant characteristics of a model object of the lower resolution image and an object orientation of the model object of the lower resolution image using an edge based technique. Decomposing the image into at least another lower resolution image and determining a candidate test object's position within another lower resolution image and an orientation of the test object using an edge based technique. The orientation ambiguity of the test object is resolved.

摘要翻译： 一种用于图像处理的方法包括将模型图像分解为至少一个较低分辨率图像，并且使用基于边缘的技术来确定较低分辨率图像的模型对象的大致旋转不变特性和较低分辨率图像的模型对象的对象方向 。 将图像分解为至少另一个较低分辨率图像，并使用基于边缘的技术来确定候选测试对象在另一较低分辨率图像内的位置和测试对象的取向。 测试对象的方位模糊度得到解决。

公开(公告)号：US08687143B2

公开(公告)日：2014-04-01

申请号：US12972928

申请日：2010-12-20

申请人： Xiaofan Feng ,  Dan Zhang

发明人： Xiaofan Feng ,  Dan Zhang

IPC分类号： G02F1/1335

CPC分类号： G09G3/3611 ,  G09G3/3413 ,  G09G2320/0646 ,  G09G2320/0666

摘要： A method of illuminating a display includes spatially varying the luminance of a multi-colored light source illuminating a plurality of pixels of the display in response to receiving a plurality of pixel values, and varying the transmittance of a light valve of the display having filters corresponding to the multi-colored light source in response to receiving the plurality of pixel values. The illumination is modified for a plurality of pixel values based upon modification of the luminance of the light source and varying the transmittance of the light valve. The modifying is further based upon modification of at least one of the multi-colored light sources together with modification of the transmittance of the light valve corresponding to at least one of the filters of a different color than the at least one of the multi-colored light sources in such a manner that increases the color gamut of the display.

摘要翻译： 照明显示器的方法包括：响应于接收到多个像素值而对显示器的多个像素照亮多色光源的空间变化的亮度，并且改变具有对应的滤光器的显示器的光阀的透射率 响应于接收到多个像素值而到达多色光源。 基于光源的亮度的改变和改变光阀的透射率，对多个像素值修改照明。 修饰还基于对多色光源中的至少一种的修改，以及与至少一种多色光源的至少一种不同颜色的至少一种滤光器对应的光阀的透射率的修改， 光源以增加显示器的色域的方式。

公开(公告)号：US20120075354A1

公开(公告)日：2012-03-29

申请号：US12893525

申请日：2010-09-29

申请人： Yeping Su ,  Xiaofan Feng

发明人： Yeping Su ,  Xiaofan Feng

IPC分类号： G09G5/10

CPC分类号： G09G5/10 ,  G09G2320/0233 ,  G09G2320/0285 ,  G09G2320/0295 ,  G09G2320/0693 ,  G09G2360/147

摘要： A display includes a plurality of gray levels being provided to a plurality of pixels of the display and illuminating each of the pixels with the plurality of gray levels. The display applying corrective data for the pixels so as to reduce the mura effects of the display for the plurality of gray levels, wherein a selection of code values for the corrective data is determined based upon a minimization of an error function.

摘要翻译： 显示器包括向显示器的多个像素提供多个灰度级并且以多个灰度等级照亮每个像素。 所述显示器应用所述像素的校正数据，以便减少所述多个灰度级的所述显示器的色调效果，其中，基于误差函数的最小化来确定所述校正数据的代码值的选择。

公开(公告)号：US06690422B1

公开(公告)日：2004-02-10

申请号：US09433540

申请日：1999-11-03

申请人： Scott J. Daly ,  Xiaofan Feng

发明人： Scott J. Daly ,  Xiaofan Feng

IPC分类号： H04N314

CPC分类号： H04N9/045

摘要： A method of field sequential color image capture includes: optically capturing a scene frame-by-frame; filtering the scene through an active color shutter to produce a first color component set having plural first color components therein; detecting the scene with a color filter array area sensor, wherein each first color component of the first color component set of the scene is detected at different points in time within a frame; dividing the detected scene into a second color component set having plural second color components therein; aligning the second color component set in time for each frame interval; and combining the stored second color components into a frame image. A system for capturing a field sequential color image includes an optical capture mechanism for capturing a scene frame-by-frame in frame intervals which operates at a predetermined shutter speed; a color shutter for producing a first color component set having plural first color components therein, thereby modifying the spectral transmission of the scene as a function of time; a CFA area sensor for sensing the first color components, wherein each first color component of the scene is detected at a different point in time within a frame; an array field selector for dividing the scene into a second color component set having plural second color components therein; and a field-to-frame combiner for combining the second color components into a frame image.

摘要翻译： 场序彩色图像捕获的方法包括：逐帧地光学捕获场景; 通过有源彩色快门过滤场景以产生其中具有多个第一颜色分量的第一颜色分量集合; 利用滤色器阵列区域传感器检测场景，其中在帧内的不同时间点检测场景的第一颜色分量集合中的每个第一颜色分量; 将检测到的场景划分为其中具有多个第二颜色分量的第二颜色分量集合; 对于每个帧间隔在时间上设置的第二颜色分量; 以及将所存储的第二颜色分量组合成帧图像。 用于捕获场顺序彩色图像的系统包括光学捕获机构，用于以预定快门速度操作的帧间隔逐帧捕获场景; 用于产生其中具有多个第一颜色分量的第一颜色分量组的彩色快门，从而修改作为时间的函数的场景的光谱透射; 用于感测第一颜色分量的CFA区域传感器，其中在帧内的不同时间点检测场景的每个第一颜色分量; 阵列场选择器，用于将场景划分成具有多个第二颜色分量的第二颜色分量集合; 以及用于将第二颜色分量组合成帧图像的场到帧组合器。