公开(公告)号：US20060291732A1

公开(公告)日：2006-12-28

申请号：US11168128

申请日：2005-06-28

Applicant: Yingjun Bai ,  Xing Li

Inventor： Yingjun Bai ,  Xing Li

IPC: G06K9/36 ,  G06K9/00

CPC classification number: H04N1/40062 ,  H04N1/4092 ,  H04N1/41

Abstract: A system and method for controlling the work flow or processing of scanned images is disclosed. The system and method identify appropriate image processing techniques, particularly techniques well-suited to enable image compression yet maintain image quality so as to facilitate the storage and transmission of scanned image data.

Abstract translation: 公开了一种用于控制扫描图像的工作流程或处理的系统和方法。 该系统和方法识别适当的图像处理技术，特别是适合于启用图像压缩但保持图像质量以便于扫描图像数据的存储和传输的技术。

公开(公告)号：US20060039627A1

公开(公告)日：2006-02-23

申请号：US10923388

申请日：2004-08-21

Applicant: Xing Li ,  Daniel Mohabir ,  Roger Triplett

Inventor： Xing Li ,  Daniel Mohabir ,  Roger Triplett

IPC: G06K9/36

CPC classification number: H04N1/3873 ,  H04N1/3878

Abstract: In a digital reproduction system incorporating a single pass scanner, accurate image processing results from processing a subset of grayscale image data. More specifically, scanlines that correspond to the leading edge of a document are stored and processed to detect skew and to obtain an appropriate correction. The lead edge correction is then applied to the entire grayscale image. Accordingly, the present systems and methods eliminate skew from grayscale images in real-time. The corrected image is rendered to binary and stored in electronic pre-collation memory and cropping, masking and other image editing operations can be performed on the binary image data before the image is printed.

Abstract translation: 在包含单遍扫描仪的数字再现系统中，通过处理灰度图像数据的子集得到准确的图像处理。 更具体地，对应于文档的前沿的扫描线被存储和处理以检测偏斜并获得适当的校正。 然后将前沿校正应用于整个灰度图像。 因此，本系统和方法实时地从灰度图像中消除偏差。 将校正后的图像呈现为二进制并存储在电子预处理存储器中，并且可以在打印图像之前对二进制图像数据执行裁剪，掩蔽和其他图像编辑操作。

公开(公告)号：US20060013476A1

公开(公告)日：2006-01-19

申请号：US10879026

申请日：2004-06-30

Applicant: Stuart Schweid ,  Roger Triplett ,  Gene Nitschke ,  Xing Li

Inventor： Stuart Schweid ,  Roger Triplett ,  Gene Nitschke ,  Xing Li

IPC: G06K9/00

CPC classification number: H04N1/64

Abstract: This invention relates to an imaging device that extends the processing of resources to data having a greater bit-depth. A signal having data at the first bit-depth is received, and at least a portion of the data at the first bit-depth is converted into an estimated value that is at the second bit-depth. A residual that indicates a difference between the data and the estimated value is determined. The estimated value is processed through the resource to form processed data that is at the second bit-depth. The data is then substantially recovered at the first bit-depth from the processed data that is at the second bit-depth and based on the residual.

Abstract translation: 本发明涉及将资源处理扩展到具有更大位深度的数据的成像装置。 接收具有第一位深度的数据的信号，并且将第一位深度处的数据的至少一部分转换为处于第二位深度的估计值。 确定指示数据与估计值之间的差的残差。 通过资源处理估计值，以形成处于第二位深处的数据。 然后，在处于第二位深处的处理数据的第一位深处基于残差基本恢复数据。

公开(公告)号：US20050273578A1

公开(公告)日：2005-12-08

申请号：US10851145

申请日：2004-05-24

Applicant: Xing Li ,  Ramesh Nagarajan

Inventor： Xing Li ,  Ramesh Nagarajan

IPC: G06F9/30 ,  G06K9/34

CPC classification number: G09G5/14 ,  G06F3/1438 ,  G09G5/04

Abstract: A method and system of manual windowing within a displayed image is disclosed, which include specifying different windows within a displayed image, assigning tags to different windows, assigning processing channels to the windows, processing the different windows on the basis of the assigned tags and assembling the different windows. A scanner is disclosed which sends image data to a manual window construction module which specifies a plurality of windows within a displayed image and which assigns specific tags to each one of the plurality of windows. According to various exemplary embodiments, the windows are processed separately and re-assembled by a processor.

Abstract translation: 公开了一种在显示图像内的手动窗口化的方法和系统，其包括在显示图像内指定不同的窗口，将标签分配给不同窗口，将窗口分配处理通道，基于所分配的标签处理不同的窗口并组装 不同的窗户。 公开了一种将图像数据发送到指定显示图像内的多个窗口并将特定标签分配给多个窗口中的每一个的手动窗口构造模块的扫描仪。 根据各种示例性实施例，窗口被单独处理并由处理器重新组装。

公开(公告)号：US20050111731A1

公开(公告)日：2005-05-26

申请号：US10719395

申请日：2003-11-21

Applicant: Yingjun Bai ,  Xing Li

Inventor： Yingjun Bai ,  Xing Li

IPC: G06K9/20 ,  G06K9/34 ,  G06K9/54

CPC classification number: G06K9/00456

Abstract: In an image processing system, successive segmentation steps are carried out. In the case of a “hole” in the segmentation result, which is defined as a small area of one type (such as black) within a slightly larger “island” of another type (such as white), a basic segmentation technique may result in an error. The error is avoided by retaining, for each distinct area in the image, a variable indicating whether the area has been “flipped” from one type to another in a previous processing operation.

Abstract translation: 在图像处理系统中，执行连续的分割步骤。 在分割结果中的“孔”的情况下，其被定义为在另一种类型（例如白色）的略大的“岛”内的一种类型（例如黑色）的小区域，可能导致基本分割技术 在一个错误。 通过为图像中的每个不同区域保留指示在先前处理操作中该区域是否已经从一种类型“翻转”到另一种类型的变量来避免错误。

公开(公告)号：US20050063013A1

公开(公告)日：2005-03-24

申请号：US10667703

申请日：2003-09-22

Applicant: Xing Li ,  Ramesh Nagarajan

Inventor： Xing Li ,  Ramesh Nagarajan

IPC: G06T5/00 ,  H04N1/40 ,  G06K9/34 ,  G06K9/54 ,  G06K15/00 ,  G06T7/00

CPC classification number: H04N1/40 ,  G06T5/001 ,  G06T2207/10008 ,  G06T2207/20012

Abstract: What is disclosed is a system and method to improve the black and white image quality of tag-based color imaging systems in a color image path by making use of the additional two channels available. The present method exploits the resources of the two un-utilized channels during black and white processing. The single channel black-and white image is replicated into all three channels at the output of the storage memory. Segmentation tags are fed into each channel to control the image processing. Additional filters, TRCs and rendering methods will be available due to processing in all the 3 channels. Resources may additionally include such things as: filters, TRC mapping, and halftoning modules. The video output from the output image processing is merged back based on the segmentation tags. Different de-screen filters with various cut-off frequencies and enhancement filters are applied to the image based on pixel classification. One example of such an application is to use different cut-off frequency filters for text-on-tint pixels and different halftone frequency pixels. The number of TRCs and halftone screens available per page has also increased by 3 times. The method also applies to any image path that has extra channels available for certain scanning/copying modes.

Abstract translation: 公开的是通过利用可用的附加两个通道来改善彩色图像路径中基于标签的彩色成像系统的黑白图像质量的系统和方法。 本方法在黑白处理中利用两个未被利用的信道的资源。 单通道黑白图像被复制到存储存储器输出端的所有三个通道中。 分割标签被馈送到每个通道以控制图像处理。 由于所有3个通道中的处理，附加的过滤器，TRC和渲染方法将可用。 资源可能还包括以下内容：过滤器，TRC映射和半色调模块。 基于分割标签将输出图像处理的视频输出合并回来。 基于像素分类，将具有各种截止频率和增强滤波器的不同去屏滤波器应用于图像。 这种应用的一个例子是对色彩文字像素和不同的半色调频率像素使用不同的截止频率滤波器。 每页可用的TRC和半色调屏幕数量也增加了3倍。 该方法也适用于具有可用于特定扫描/复印模式的额外通道的任何图像路径。

公开(公告)号：US20050036694A1

公开(公告)日：2005-02-17

申请号：US10639391

申请日：2003-08-12

Applicant: Xing Li ,  Ramesh Nagarajan ,  Ammal Malik

Inventor： Xing Li ,  Ramesh Nagarajan ,  Ammal Malik

IPC: G06K9/36 ,  G06K9/54 ,  H04N1/387 ,  H04N1/58

CPC classification number: H04N1/58 ,  H04N1/3871

Abstract: In a mixed raster content (MRC) image data format, where a separation plane is used to define portions of the image to compressed in a lossy or lossless manner, edge pixels are identified in the separation plane. Each edge pixel is modified to assume a maximum luminance and most neutral chrominance found among neighboring pixels. The modification of the edge pixel data minimizes artifacts such as fringe effects when the image data is compressed and subsequently decompressed.

Abstract translation: 在混合光栅内容（MRC）图像数据格式中，使用分离平面来定义要以有损或无损的方式压缩的图像的部分，边缘像素在分离平面中被识别。 修改每个边缘像素以呈现在相邻像素中发现的最大亮度和最中性色度。 当图像数据被压缩并随后解压缩时，边缘像素数据的修改最小化诸如边缘效应之类的伪影。

公开(公告)号：US06782129B1

公开(公告)日：2004-08-24

申请号：US09158884

申请日：1998-09-23

Applicant: Xing Li ,  Michael E. Meyers ,  Francis K. Tse

Inventor： Xing Li ,  Michael E. Meyers ,  Francis K. Tse

IPC: G06K934

CPC classification number: H04N1/40062

Abstract: A method and apparatus are provided for processing image data. A peak count and a valley count are determined within a window which includes a plurality of subwindows. An overall count is determined using the greater of the peak count and the valley count for each subwindow. The image data may then be classified based on this determination.

Abstract translation: 提供了一种用于处理图像数据的方法和装置。 在包括多个子窗口的窗口内确定峰值计数和谷值计数。 使用每个子窗口的峰值计数和谷值计数中的较大值来确定总体计数。 然后可以基于该确定对图像数据进行分类。

公开(公告)号：US06483941B1

公开(公告)日：2002-11-19

申请号：US09393534

申请日：1999-09-10

Applicant: Xing Li

Inventor： Xing Li

IPC: H04N146

CPC classification number: G06T5/003 ,  G06T5/002 ,  G06T5/20 ,  G06T2207/10008 ,  G06T2207/10024 ,  G06T2207/20192 ,  H04N1/58

Abstract: A method and apparatus for digital image processing are provided for controlling chrominance channel overshoot in response to FIR or other enhancement processing. The chrominance values defining the enhanced digital image data for each pixel are compared to corresponding local minimum and maximum chrominance values of the non-enhanced image obtained from the neighborhood of the subject pixel. If an enhanced chrominance value for a subject pixel falls outside the corresponding local minimum/local maximum chrominance range by an overshoot amount, the enhanced chrominance value is adjusted to reduce the overshoot amount. The overshoot amount is adjusted according to a pre-programmed overshoot reduction parameter.

Abstract translation: 提供了一种用于数字图像处理的方法和装置，用于响应于FIR或其他增强处理来控制色度信道过冲。 将对于每个像素定义增强数字图像数据的色度值与从对象像素的邻域获得的非增强图像的相应局部最小和最大色度值进行比较。 如果对象像素的增强色度值通过过冲量落在对应的局部最小/局部最大色度范围之外，则调整增强的色度值以减小过冲量。 根据预编程的过冲减少参数调整过冲量。

公开(公告)号：US06181834B2

公开(公告)日：2001-01-30

申请号：US09157015

申请日：1998-09-18

Applicant: Xing Li ,  Francis K. Tse

Inventor： Xing Li ,  Francis K. Tse

IPC: G06K932

CPC classification number: G06T3/4007 ,  H04N1/40075

Abstract: A method and apparatus for digital image reduction using an improved “extendible” perspective projection technique which allows for flexible control of the averaging cell or window size separately from the reduction ratio to improve moir{acute over (e)} suppression or sharpness as desired in the resulting reduced-size image. The extendible perspective projection technique can also be implemented together with ordinary perspective projection or together with a combined one-dimensional filter and linear interpolation technique to produce a reduced-size image of a quality comparable to those produced by the prior technique of using a two-dimensional pre-filter prior to interpolation at a much lesser cost due to the reduced number of required scanline buffers.

Abstract translation: 使用改进的“可扩展”透视投影技术的数字图像缩小的方法和装置，其允许与缩小比率分开地灵活地控制平均单元格或窗口尺寸，以改善所得缩小尺寸图像中所需的莫尔条纹抑制或锐度。 可伸缩透视投影技术还可以与普通透视投影一起实现，或者与组合的一维滤光片和线性内插技术一起实现，以产生质量相当于使用二维滤镜的现有技术产生的图像质量的尺寸较小的图像， 由于所需的扫描线缓冲器的数量减少，插值之前的三维预滤波器以非常低的成本。