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1. 发明授权

US07248693B1 Secure network-based system for the distributed printing of documents 有权
标题翻译：安全的基于网络的系统，用于文件的分布式打印
公开(公告)号：US07248693B1
公开(公告)日：2007-07-24
申请号：US09483183
申请日：2000-01-13
申请人： Daniel R. Tretter , Thomas D. Kite , Qian Lin , Hugh P. Nguyen , Ping Wah Wong
发明人： Daniel R. Tretter , Thomas D. Kite , Qian Lin , Hugh P. Nguyen , Ping Wah Wong
IPC分类号： G09C3/00 , H04L9/00
CPC分类号： G06F21/608 , H04L9/3234
摘要： An Internet-based printing system allows for the distribution and printing of documents and images in a secure, controlled manner. The system includes a secure printer that receives, decrypts and prints documents supplied by a document server. Security of the system is realized by an aggregate of a secure communication protocol, smart card technology and the computational infeasibility of breaking a public key cryptographic system. The system may be used for electronic commerce, in which copies are made on a “pay-per-print” basis.
摘要翻译：基于互联网的打印系统允许以安全，受控的方式分发和打印文档和图像。该系统包括一个安全打印机，用于接收，解密和打印由文档服务器提供的文档。系统的安全性通过安全通信协议，智能卡技术的集合和破坏公钥密码系统的计算不可行性来实现。该系统可用于电子商务，其中以“按打印方式”进行复印。

2. 发明授权

US5992962A Print masks for inkjet printers 失效
标题翻译：打印喷墨打印机的面具
公开(公告)号：US5992962A
公开(公告)日：1999-11-30
申请号：US363447
申请日：1994-12-22
申请人： Jonathan Yen , Qian Lin , Ping Wah Wong
发明人： Jonathan Yen , Qian Lin , Ping Wah Wong
IPC分类号： B41J2/01 , B41J2/07 , B41J2/205 , B41J2/21 , G06K15/10 , H04N1/191 , B41J2/145
CPC分类号： H04N1/128 , B41J2/2132 , G06K15/107 , H04N1/1911 , H04N1/1913
摘要： Various patterns, such as those derived from halftoning techniques, are applied to the design of print masks for inkjet printers to improve print quality. Print masks are used to control the firing sequence of the nozzles in a print head in multiple pass printing mode and thereby determine the nozzles that are to print in each particular media location. Such techniques as halftoning techniques have been used to print gray scale images with bi-level printing to produce bi-level patterns that can be perceived as gray density by human eyes from a viewing distance. State-of-the-art print masks typically provide checkerboard patterns that are not sufficient to handle severe print artifacts. A novel triangular clustering print mask that may be derived from halftoning techniques is applied to produce an imperceptible printed pattern that covers up the banding artifacts caused by defective print head nozzles. An alternative print mask that may be derived from a super smooth dithering matrix eliminates unpleasant artifacts caused by ink migration. Advanced halftoning techniques are applied to guide the ink migration in an imperceptible, super smooth dithering pattern. These print masking techniques have been demonstrated to be very effective in print quality improvement.
摘要翻译：各种图案，例如从半色调技术衍生的图案，被应用于喷墨打印机的打印掩模的设计以提高打印质量。打印掩模用于以多遍打印模式控制打印头中的喷嘴的喷射顺序，从而确定在每个特定介质位置中打印的喷嘴。已经使用诸如半色调技术的技术来打印具有双层打印的灰度图像，以产生双层图案，其可以从观察距离被人眼察觉为灰度密度。最先进的打印掩码通常提供不足以处理严重打印伪影的棋盘格图案。应用可以从半色调技术导出的新颖的三角形聚类打印掩模，以产生一个不可察觉的印刷图案，其覆盖由有缺陷的打印头喷嘴引起的带状伪影。可以从超平滑抖动矩阵导出的替代打印掩模消除了由墨水迁移引起的不愉快的伪像。应用先进的半色调技术来引导油墨在不可察觉的超平滑抖动图案中迁移。已经证明这些打印掩蔽技术在打印质量改进方面非常有效。

3. 发明申请

US20120019677A1 IMAGE STABILIZATION IN A DIGITAL CAMERA 审中-公开
标题翻译：数码相机中的图像稳定
公开(公告)号：US20120019677A1
公开(公告)日：2012-01-26
申请号：US12843746
申请日：2010-07-26
申请人： Ping Wah Wong , Weihua Xiong
发明人： Ping Wah Wong , Weihua Xiong
IPC分类号： H04N5/228
CPC分类号： H04N5/23254 , G06T5/003 , G06T5/50 , G06T2207/10016 , G06T2207/20021 , G06T2207/20201 , G06T2207/20221 , G09G2320/0261 , G09G2320/106 , G09G2340/16 , H04N5/144
摘要： Disclosed is a method for processing a digital image, the method comprising: selecting a set of frames from a plurality of frames captured by a digital imaging device: identifying a set of pixel blocks from the set of frames; and integrating the set of pixel blocks to process the digital image.
摘要翻译：公开了一种处理数字图像的方法，该方法包括：从由数字成像设备捕获的多个帧中选择一组帧;从该组帧中识别一组像素块; 以及对该组像素块进行积分以处理该数字图像。

4. 发明授权

US07746934B2 Image stabilization method 有权
标题翻译：图像稳定方法
公开(公告)号：US07746934B2
公开(公告)日：2010-06-29
申请号：US11407450
申请日：2006-04-19
申请人： Hong Chen , Ping Wah Wong
发明人： Hong Chen , Ping Wah Wong
IPC分类号： H04N7/12
CPC分类号： H04N19/86 , H04N19/44 , H04N19/51 , H04N19/80
摘要： In one embodiment, a method for reducing motion artifacts in an output image is provided. The method comprises capturing multiple frames of a scene; determining local motion vectors between each pixel in a current frame and a corresponding pixel in the a previous frame; and performing a temporal filtering operation based on the local motion vectors wherein pixels from a plurality frames are integrated to form the output image.
摘要翻译：在一个实施例中，提供了用于减少输出图像中的运动伪影的方法。该方法包括捕获场景的多个帧; 确定当前帧中的每个像素与前一帧中的对应像素之间的局部运动矢量; 以及基于其中来自多个帧的像素被整合以形成输出图像的局部运动矢量执行时间滤波操作。

5. 发明申请

US20090087115A1 CORRECTION FOR GEOMETRIC DISTORTION IN IMAGES IN PIPELINED HARDWARE 审中-公开
标题翻译：在管道硬件图像中几何失真的校正
公开(公告)号：US20090087115A1
公开(公告)日：2009-04-02
申请号：US11866342
申请日：2007-10-02
申请人： Ping Wah Wong , Clement K.L. Ip
发明人： Ping Wah Wong , Clement K.L. Ip
IPC分类号： G06K9/40 , G06K9/54
CPC分类号： G06T5/006 , G06T3/0018
摘要： In one embodiment, method for correcting geometric distortion in an image is provided. The method comprises operating at least first and second buffers upstream of a pixel processing block in pipelined hardware to each read M×N pixels of an input image to be corrected for geometric distortion; selectively connecting one of the first and second buffers to the pixel processing block for inputting the M×N pixels contained therein to the pixel processing block; and in the pixel processing block, processing the M×N input pixels to correct for geometric distortion, the processing block being configured to output segments 1×L pixels wide of an output image that is corrected for geometric distortion; wherein values for M and N are selected to define a minimum block size in the input image required to produce each current 1×L segment in the output image by an algorithm to correct for geometric distortion in the input image.
摘要翻译：在一个实施例中，提供了用于校正图像中的几何失真的方法。该方法包括在流水线硬件中的像素处理块上游的至少第一和第二缓冲器中操作以对每个读取要校正的几何失真的输入图像的M×N个像素; 选择性地将第一和第二缓冲器之一连接到像素处理块，用于将包含在其中的M×N个像素输入到像素处理块; 并且在所述像素处理块中，处理所述M×N个输入像素以校正几何失真，所述处理块被配置为输出被校正为几何失真的输出图像的1xL个像素宽的像素; 其中选择M和N的值以定义通过用于校正输入图像中的几何失真的算法在输出图像中产生每个当前1xL段所需的输入图像中的最小块大小。

6. 发明申请

US20130258151A1 CMOS Image Sensors Implementing Full Frame Digital Correlated Double Sampling with Global Shutter 有权
标题翻译： CMOS图像传感器实现全帧数字相关双采样与全局快门
公开(公告)号：US20130258151A1
公开(公告)日：2013-10-03
申请号：US13435071
申请日：2012-03-30
申请人： Thomas Ayers , Frederick Thomas Brady , Jinsuk Kang , Ping Wah Wong
发明人： Thomas Ayers , Frederick Thomas Brady , Jinsuk Kang , Ping Wah Wong
IPC分类号： H04N5/335
CPC分类号： H04N5/378 , H04N5/355 , H04N5/3575 , H04N5/3592
摘要： An active pixel CMOS image sensor implements full frame digital correlated double sampling (CDS) with global shutter where all the pixels in the image sensor are reset at substantially the same time and all the pixels in the image sensor integrate incident light at substantially the same time and for substantially the same time duration and correlated double sampling cancellation is performed in the digital domain. In one embodiment, the image sensing device includes an array of light sensing elements, a timing and control circuit and analog-to-digital converters. The timing and control circuit is operative to reset the light sensing elements in the array and to control the array of light sensing elements to integrate incident light. The pixel reset values are cancelled from the corresponding light dependent pixel values for each of the light sensing elements to generate correlated double sampling (CDS) corrected digital output pixel values.
摘要翻译：有源像素CMOS图像传感器实现具有全局快门的全帧数字相关双采样（CDS），其中图像传感器中的所有像素基本上同时复位，并且图像传感器中的所有像素基本上同时地集成入射光并且对于基本上相同的持续时间并且在数字域中执行相关的双采样消除。在一个实施例中，图像感测装置包括光敏元件阵列，定时和控制电路以及模 - 数转换器。定时和控制电路用于复位阵列中的光感测元件并且控制光感测元件的阵列以集成入射光。对于每个光感测元件，像素复位值被从相应的依赖于光的像素值中消除以产生相关双倍采样（CDS）校正的数字输出像素值。

7. 发明授权

US08203620B2 Method and apparatus for sharpening digital images 有权
标题翻译：用于锐化数字图像的方法和装置
公开(公告)号：US08203620B2
公开(公告)日：2012-06-19
申请号：US12769153
申请日：2010-04-28
申请人： Ping Wah Wong , Hong Chen
发明人： Ping Wah Wong , Hong Chen
IPC分类号： H04N5/228
CPC分类号： G06T5/004
摘要： Disclosed is a method for sharpening a digital image captured by a digital imaging device, the method comprising, for each pixel Xm,n of the digital image: a) at an edge detector determining an edge parameter E, the edge parameter E providing an indication of whether the pixel Xm,n is at an edge of the digital image; b) at a noose detector determining a noise parameter σ, the noise parameter σ providing an indication of whether the pixel Xm,n is a noise in the digital image; c) at a scaling module determining a scaling factor αm,n based on a combination of the edge parameter E and the noise parameter σ; and d) at an image sharpening module applying the scaling factor αm,n on a pixel by pixel basis to sharpen the digital image to get a sharpened pixel Ym,n.
摘要翻译：公开了一种用于锐化由数字成像装置捕获的数字图像的方法，所述方法包括：对于数字图像的每个像素X m，n，a）在边缘检测器确定边缘参数E时，边缘参数E提供指示是否像素Xm，n处于数字图像的边缘; b）在确定噪声参数的噪声检测器中，噪声参数＆sgr; 提供像素Xm，n是数字图像中的噪声的指示; c）在缩放模块处，基于边缘参数E和噪声参数的组合来确定缩放因子αm，n; 以及d）在图像锐化模块上逐个像素地应用缩放因子αm，n，以锐化数字图像以得到锐化像素Ym，n。

8. 发明申请

US20110267484A1 METHOD AND APPARATUS FOR SHARPENING DIGITAL IMAGES 有权
标题翻译：用于数字图像的方法和装置
公开(公告)号：US20110267484A1
公开(公告)日：2011-11-03
申请号：US12769153
申请日：2010-04-28
申请人： Ping Wah Wong , Hong Chen
发明人： Ping Wah Wong , Hong Chen
IPC分类号： H04N5/228
CPC分类号： G06T5/004
摘要： Disclosed is a method for sharpening a digital image captured by a digital imaging device, the method comprising, for each pixel Xm,n of the digital image: a) at an edge detector determining an edge parameter E, the edge parameter E providing an indication of whether the pixel Xm,n is at an edge of the digital image; b) at a noose detector determining a noise parameter σ, the noise parameter σ providing an indication of whether the pixel Xm,n is a noise in the digital image; c) at a scaling module determining a scaling factor αm,n based on a combination of the edge parameter E and the noise parameter σ; and d) at an image sharpening module applying the scaling factor αm,n on a pixel by pixel basis to sharpen the digital image to get a sharpened pixel Ym,n.
摘要翻译：公开了一种用于锐化由数字成像装置捕获的数字图像的方法，所述方法包括：对于数字图像的每个像素X m，n，a）在边缘检测器确定边缘参数E时，边缘参数E提供指示是否像素Xm，n处于数字图像的边缘; b）在确定噪声参数的噪声检测器中，噪声参数＆sgr; 提供像素Xm，n是数字图像中的噪声的指示; c）在缩放模块处，基于边缘参数E和噪声参数的组合来确定缩放因子αm，n; 以及d）在图像锐化模块上逐个像素地应用缩放因子αm，n，以锐化数字图像以得到锐化像素Ym，n。

9. 发明授权

US07742636B2 Method and apparatus for scaling down a bayer domain image 有权
标题翻译：用于缩小拜耳域图像的方法和装置
公开(公告)号：US07742636B2
公开(公告)日：2010-06-22
申请号：US11341712
申请日：2006-01-26
申请人： Ping Wah Wong
发明人： Ping Wah Wong
IPC分类号： G06T3/40
CPC分类号： G06T3/4015 , H04N5/3458 , H04N5/347 , H04N9/045
摘要： In one embodiment of the invention, a method is provided. The method, comprises scaling down a Bayer domain image made up of a number of 2×2 basic units, each having a Red (R) pixel, a Blue (B) pixel, and two green (G) pixels arranged in a fixed configuration and replicated throughout the image, the method comprising (a) partitioning the image into 2M×2N input blocks, where M and N are integers greater than or equal to 1; (b) for each 2M×2N input block, averaging a selection of R pixels in the block to produce a R pixel in a scaled down image corresponding to the Bayer domain image; (c) averaging a selection of B pixels in the block to produce a B pixel in the scaled down image; and (d) partitioning the 2M×2N input block into first and second triangular regions, and averaging a selection of pixels in the first triangular region to produce a first G pixel in the scaled down image, and averaging a selection of pixels in the second triangular region to produce a second G pixel in the scaled down image.
摘要翻译：在本发明的一个实施例中，提供了一种方法。该方法包括缩小由多个2×2基本单元组成的拜耳域图像，每个基本单元具有以固定配置排列的Red（R）像素，Blue（B）像素和两个绿色（G）像素）并且在整个图像中复制，该方法包括（a）将图像分割成2M×2N个输入块，其中M和N是大于或等于1的整数; （b）对于每个2M×2N个输入块，对块中的R个像素的选择进行平均，以产生对应于拜耳域图像的缩小图像中的R像素; （c）对所述块中的B像素的选择进行平均以在缩小图像中产生B像素; 以及（d）将所述2M×2N个输入块分割为第一和第二三角形区域，对所述第一三角形区域中的像素的选择进行平均，以产生所述缩小图像中的第一G像素，并且对所述第二三角形区域中的像素的选择进行平均三角形区域以在缩小图像中产生第二G像素。

10. 发明授权

US08953075B2 CMOS image sensors implementing full frame digital correlated double sampling with global shutter 有权
标题翻译： CMOS图像传感器实现全帧数字相关双采样与全局快门
公开(公告)号：US08953075B2
公开(公告)日：2015-02-10
申请号：US13435071
申请日：2012-03-30
申请人： Thomas Ayers , Frederick Thomas Brady , Jinsuk Kang , Ping Wah Wong
发明人： Thomas Ayers , Frederick Thomas Brady , Jinsuk Kang , Ping Wah Wong
IPC分类号： H04N5/335
CPC分类号： H04N5/378 , H04N5/355 , H04N5/3575 , H04N5/3592
摘要： An active pixel CMOS image sensor implements full frame digital correlated double sampling (CDS) with global shutter where all the pixels in the image sensor are reset at substantially the same time and all the pixels in the image sensor integrate incident light at substantially the same time and for substantially the same time duration and correlated double sampling cancellation is performed in the digital domain. In one embodiment, the image sensing device includes an array of light sensing elements, a timing and control circuit and analog-to-digital converters. The timing and control circuit is operative to reset the light sensing elements in the array and to control the array of light sensing elements to integrate incident light. The pixel reset values are cancelled from the corresponding light dependent pixel values for each of the light sensing elements to generate correlated double sampling (CDS) corrected digital output pixel values.
摘要翻译：有源像素CMOS图像传感器实现具有全局快门的全帧数字相关双采样（CDS），其中图像传感器中的所有像素在基本相同的时间被复位，并且图像传感器中的所有像素基本上同时地集成入射光并且对于基本上相同的持续时间并且在数字域中执行相关的双采样消除。在一个实施例中，图像感测装置包括光敏元件阵列，定时和控制电路以及模 - 数转换器。定时和控制电路用于复位阵列中的光感测元件并且控制光感测元件的阵列以集成入射光。对于每个光感测元件，像素复位值被从相应的依赖于光的像素值中消除以产生相关双倍采样（CDS）校正的数字输出像素值。

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