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公开(公告)号：US07082218B2
公开(公告)日：2006-07-25
申请号：US10216648
申请日：2002-08-12
Applicant: Stephen Bernard Pollard , Andrew Arthur Hunter
Inventor： Stephen Bernard Pollard , Andrew Arthur Hunter
Abstract: A raw image consists of a plurality of pixels in a plurality of color planes giving a color image. The raw image is split into at least a low frequency image and a high frequency image. At least the low frequency image is color corrected to produce a color corrected low frequency image. The color corrected low frequency image is combined with at least the high frequency image to give a final image which is of comparable resolution to the raw image but is color corrected.
Abstract translation: 原始图像由给出彩色图像的多个彩色平面中的多个像素构成。 原始图像被分割成至少低频图像和高频图像。 至少低频图像被颜色校正以产生色彩校正的低频图像。 将色彩校正的低频图像与至少高频图像组合以给出与原始图像具有可比分辨率但是进行颜色校正的最终图像。
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公开(公告)号：US06259826B1
公开(公告)日：2001-07-10
申请号：US09086304
申请日：1998-05-28
Applicant: Stephen Bernard Pollard , Richard Oliver Kahn
Inventor： Stephen Bernard Pollard , Richard Oliver Kahn
IPC: G06K936
CPC classification number: H04N1/047 , H04N1/107 , H04N2201/02425 , H04N2201/02439 , H04N2201/03162 , H04N2201/0471 , H04N2201/04729 , H04N2201/04731 , H04N2201/04734 , H04N2201/04737 , H04N2201/04787 , H04N2201/04789 , H04N2201/04791 , H04N2201/04794
Abstract: A method of reconstructing an image captured as a stream of image data, for example as input received from a linear sensor in unconstrained scanning, comprises reconstructing the image in the form of a plurality of tiles. Each tile comprises a pixel grid of predetermined dimension representing a specific spatial region of the image. The tiles tessellate a rectilinear image space. Tiles can be created when required and compressed when no longer active, thus minimizing memory requirements. Devices utilizing this method are provided. The method is especially appropriate for use in an unconstrained hand scanner, but can also be applied to panoramic capture with a digital camera.
Abstract translation: 重建作为图像数据流捕获的图像的方法，例如作为在非约束扫描中从线性传感器接收的输入，包括以多个瓦片的形式重建图像。 每个瓦片包括表示图像的特定空间区域的预定尺寸的像素网格。 瓷砖镶嵌直线图像空间。 当需要时可创建瓦片，并在不再活动时进行压缩，从而最大限度地减少内存需求。 提供了利用这种方法的设备。 该方法特别适用于无约束手持式扫描仪，但也可应用于数码相机全景拍摄。
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3.发明授权公开(公告)号：US07711207B2
公开(公告)日：2010-05-04
申请号：US10900910
申请日：2004-07-28
Applicant: Stephen Bernard Pollard , Maurizio Pilu
Inventor： Stephen Bernard Pollard , Maurizio Pilu
IPC: G06K9/32
CPC classification number: G06F3/0425 , H04N1/195 , H04N1/19594 , H04N2201/0416 , H04N2201/0436 , H04N2201/046
Abstract: The user assistance system provides a system and method for capturing images of a document and interaction of a primary user with the document in an interaction session. Briefly described, one embodiment comprises an image capture means adapted to capture an initial image of the document and at least one subsequent, additional image of the document during an interaction session, the image being mapped to a known co-ordinate system, interaction capture means for capturing the interaction of a user with the document whereby to determine at least one co-ordinate of a pointer used for the interaction relative to the same co-ordinate system defined for the initial captured image, and processing means for determining an appropriate transform that maps the additional image onto the original image.
Abstract translation: 用户辅助系统提供用于在交互会话中捕获文档的图像和主用户与文档的交互的系统和方法。 简要描述，一个实施例包括适于在交互会话期间捕获文档的初始图像和文档的至少一个后续附加图像的图像捕获装置，该图像被映射到已知的坐标系统，交互捕获装置 用于捕获用户与文档的交互，从而确定用于相对于为初始捕获图像定义的相同坐标系的交互的指针的至少一个坐标;以及处理装置，用于确定适当变换， 将附加图像映射到原始图像上。
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公开(公告)号：US07072509B2
公开(公告)日：2006-07-04
申请号：US10134491
申请日：2002-04-30
Applicant: Andrew Arthur Hunter , Stephen Bernard Pollard
Inventor： Andrew Arthur Hunter , Stephen Bernard Pollard
IPC: G06K9/00
CPC classification number: H04N9/045 , H04N2209/046
Abstract: The color of a color image having at least two sets of image pixels having color and luminance values is corrected by generating, for each color value, a low spatial frequency monochrome image including a set of smoothed image pixels. A color correction function is applied to selected sub-sets of the image pixels to generate corresponding sub-sets of corrected, smoothed image pixels. The correction includes a contribution from smoothed image pixels in one or more of the other sets of smoothed image pixels. The sub-sets of corrected smoothed image pixels is completed by interpolation or extrapolation. Each set of corrected smoothed image pixels is used to generate a corrected color image by generating one or more high spatial frequency luminance images that are combined with each of the corrected low spatial frequency monochrome images to form a full color image.
Abstract translation: 通过针对每个颜色值生成包括一组平滑图像像素的低空间频率单色图像，校正具有至少两组具有颜色和亮度值的图像像素的彩色图像的颜色。 将颜色校正功能应用于图像像素的选定子集，以生成校正的平滑图像像素的相应子集。 校正包括平滑图像像素中的一个或多个其它平滑图像像素中的平滑图像像素的贡献。 校正的平滑图像像素的子集通过插值或外插来完成。 每组经校正的平滑图像像素用于通过产生与每个校正的低空间频率单色图像组合以形成全色图像的一个或多个高空间频率亮度图像来生成校正的彩色图像。
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公开(公告)号：US06249360B1
公开(公告)日：2001-06-19
申请号：US09042987
申请日：1998-03-17
Applicant: Stephen Bernard Pollard , Richard Oliver Kahn
Inventor： Stephen Bernard Pollard , Richard Oliver Kahn
IPC: H04N1024
CPC classification number: H04N1/047 , H04N1/107 , H04N2201/02425 , H04N2201/02439 , H04N2201/03162 , H04N2201/0414 , H04N2201/0471 , H04N2201/04729 , H04N2201/04731 , H04N2201/04734 , H04N2201/04737 , H04N2201/04787 , H04N2201/04789 , H04N2201/04791 , H04N2201/04794
Abstract: The present invention relates to a method of reconstructing an image from data captured by a sensor, and is particularly applicable to the case of sequential capture in relative movement between a scanning device and the original image. The seanning device comprises navigation means for detecting the position of the sensor relative to the original image. A pixel grid for the reconstructed image is determined, and correspondence between the pixel grid and the sensor data is identified using sensor position detection data. The intensity of pixels is determined from sensor data selected as relevant to the pixel under consideration.
Abstract translation: 本发明涉及一种由传感器捕获的数据重建图像的方法，特别适用于在扫描装置与原始图像之间的相对运动中顺序捕获的情况。 扫掠装置包括用于检测传感器相对于原始图像的位置的导航装置。 确定重建图像的像素网格，并使用传感器位置检测数据来识别像素网格和传感器数据之间的对应关系。 从与所考虑的像素相关的传感器数据确定像素的强度。
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Patent Agency Ranking
公开(公告)号：US07477297B2
公开(公告)日：2009-01-13
申请号：US10805218
申请日：2004-03-22
Applicant: Stephen Bernard Pollard
Inventor： Stephen Bernard Pollard
IPC: H04N5/262
CPC classification number: H04N5/23296 , H04N5/232 , H04N5/2628
Abstract: Digital and optical zoom are combined over a number of discrete digital zoom levels. Digital interpolation is provided during transition periods between the discrete digital zoom levels such that the total apparent zoom level appears continuous and uninterrupted.
Abstract translation: 数字和光学变焦通过多个离散数字缩放级别进行组合。 在离散数字缩放级别之间的过渡期间提供数字内插，使得总的表观缩放级别呈现连续且不中断。
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公开(公告)号：US07317557B2
公开(公告)日：2008-01-08
申请号：US10206350
申请日：2002-07-29
Applicant: Stephen Bernard Pollard , Maurizio Pilu , David Arthur Grosvenor
Inventor： Stephen Bernard Pollard , Maurizio Pilu , David Arthur Grosvenor
CPC classification number: G06F3/0425 , H04N1/32133 , H04N2201/0436 , H04N2201/3226 , H04N2201/3269 , H04N2201/3274 , H04N2201/328
Abstract: The present invention provides an apparatus and method which facilitates the use of a printed or scribed document as an interface with a computer. The apparatus in one aspect comprises: a printed or scribed document bearing specialized calibration marks, the document being positioned on a work surface; a camera focused on the document for generating video signals representing the document in electronic form; and a processor linked to the camera for processing an image captured by the camera and configured to identify the calibration marks of the document in the captured image and then determine from the location of the calibration marks in the image a transformation between co-ordinates of features. In the image and corresponding co-ordinates of features in the document that compensates for the freely variable positioning of the document on the work surface.
Abstract translation: 本发明提供一种便于将印刷或划线文件用作与计算机的界面的装置和方法。 所述装置在一个方面包括：印刷或划线文件，其承载专门的校准标记，所述文件位于工作表面上; 专注于用于以电子形式生成表示文档的视频信号的照相机; 以及连接到相机的处理器，用于处理由相机拍摄的图像并且被配置为识别拍摄图像中的文档的校准标记，然后从图像中的校准标记的位置确定特征坐标之间的变换 。 在文档中的图像和特征的相应坐标中，补偿文档在工作表面上的自由定位。
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公开(公告)号：US07023483B2
公开(公告)日：2006-04-04
申请号：US09749458
申请日：2000-12-28
Applicant: Stephen Bernard Pollard , Maurizio Pilu , Andrew C. Goris
Inventor： Stephen Bernard Pollard , Maurizio Pilu , Andrew C. Goris
CPC classification number: H04N1/19594 , H04N1/107 , H04N1/195 , H04N2201/0452
Abstract: A framing aid for a handheld document capture device such as a digital camera, comprising two pattern generators (10,20) generating convergent patterns (14, 24) that are in register on a target object plane. Triangulation between the two pattern generators (10,20) and using superimposed or complementary patterns (14,24) ensures that the hand held device (1) is correctly arranged at a predetermined range and orientation above a document to be captured, such that the document is accurately framed within the field of view of the capture device (1).
Abstract translation: 用于诸如数字照相机的手持文件捕获装置的框架辅助装置，包括产生在目标物体平面上登记的会聚模式（14,24）的两个模式发生器（10,20）。 两个图案发生器（10,20）和使用叠加或互补图案（14,24）之间的三角测量确保了手持式装置（1）被正确地布置在要被捕获的文件上方的预定范围和取向上，使得 文档在捕获设备（1）的视野范围内被精确地框架化。
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公开(公告)号：US06975434B1
公开(公告)日：2005-12-13
申请号：US09679494
申请日：2000-10-04
Applicant: Maurizio Pilu , Stephen Bernard Pollard
Inventor： Maurizio Pilu , Stephen Bernard Pollard
CPC classification number: H04N1/3876 , H04N1/0402 , H04N2201/0414 , H04N2201/0426
Abstract: An image capture apparatus comprises a computer device, for example a personal computer, and a scanning device, for example a flat bed scanning device, configured to operate a two-scan image capture process followed by data processing for combining first and second images obtained in said two-step image capture process, and a three-step image capture process followed by data processing for combining first, second and third images obtained in said three-step image capture process for obtaining a combined full image of a document. Algorithms are disclosed for stitching first and second images together to obtain a combined image data. In both the two-step and three-step image capture operation and subsequent data processing, a document having a size larger than an image capture area of said image capture device can be combined to produce a combined image data representing the whole of the document in a fully automated manner without the need for user intervention in matching images.
Abstract translation: 一种图像捕获设备包括计算机设备，例如个人计算机，以及扫描设备，例如平板扫描设备，被配置为操作双扫描图像捕捉处理，随后进行数据处理，以组合第一和第二图像 所述两步图像捕获处理和三步图像捕获处理，随后进行数据处理，用于组合在所述三步图像捕获处理中获得的用于获得文档的组合的完整图像的第一，第二和第三图像。 公开了将第一和第二图像拼接在一起以获得组合图像数据的算法。 在两步和三步图像捕获操作和随后的数据处理中，可以组合具有大于所述图像捕获装置的图像捕获区域的尺寸的文档以产生表示整个文档的组合图像数据 完全自动化的方式，而不需要用户干预匹配图像。
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公开(公告)号：US06266439B1
公开(公告)日：2001-07-24
申请号：US08714839
申请日：1996-09-06
Applicant: Stephen Bernard Pollard , Claus Henrik Pedersen
Inventor： Stephen Bernard Pollard , Claus Henrik Pedersen
IPC: G06K900
CPC classification number: H04N1/56
Abstract: An image processor receives color signals representing a color or black-and-white image, typically containing text and non-text areas. A sliding window or swath of the image is processed which progressively moves over the virtual image. A spatial filter is applied to sharpen the image and it is then classified into text and non-text regions. The data from the text regions is subjected to a black text enhancement process in which the color signal from a single channel (here the green channel) is thresholded against two thresholds, T1, T2. The lower (darker) threshold T2 identifies pixels for being set to black, whereas the threshold T1 identifies “support” pixels used in component connectivity analysis. Having defined a connected component using both T1 and T2 pixels, the color statistics of the pixels making up the component are analyzed to determine whether the component should be rendered black. If so, the image data is enhanced by snapping the T2 pixels to black, and snapping a halo of pixels around the black text component to white.
Abstract translation: 图像处理器接收表示通常包含文本和非文本区域的颜色或黑白图像的颜色信号。 处理图像的滑动窗口或条带，其逐渐移动到虚拟图像上。应用空间滤波器来锐化图像，然后将其分类为文本和非文本区域。 来自文本区域的数据经受黑色文本增强处理，其中来自单个频道（这里为绿色通道）的颜色信号针对两个阈值T1，T2进行阈值处理。 较低（较暗）阈值T2识别被设置为黑色的像素，而阈值T1标识在组件连接性分析中使用的“支持”像素。 使用T1和T2像素定义了连接的组件，分析构成组件的像素的颜色统计信息，以确定组件是否应呈现为黑色。 如果是这样，则通过将T2像素捕捉到黑色并将黑色文本分量周围的像素的晕圈捕捉到白色来增强图像数据。
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