公开(公告)号：US06400843B1

公开(公告)日：2002-06-04

申请号：US09296891

申请日：1999-04-22

Applicant: Joseph Shu ,  Tsung-Nan Lin ,  Hakan Ancin ,  Anoop Bhattacharjya

Inventor： Joseph Shu ,  Tsung-Nan Lin ,  Hakan Ancin ,  Anoop Bhattacharjya

IPC: G06K900

CPC classification number: H04N1/6058

Abstract: A color image reproduction system achieves higher-quality color reproduction by improving the utilization of colors within the gamut of an output device that are not in the gamut of an input device. This is accomplished by a device-dependent compensation transformation that maps a second set of colors in both the gamut of an input device and the gamut of the output device into a first set of colors in the gamut of the output device but not in the gamut of the input device. The compensation transformation may be derived in a number of ways that entail identifying the first and second sets of colors and then determining one or more scaling factors that map the second set of colors into a union of the first and second sets of colors.

Abstract translation: 彩色图像再现系统通过改善不在输入设备的色域的输出设备的色域内的颜色的利用来实现更高质量的色彩再现。 这是通过设备相关的补偿变换实现的，该变换将输入设备的色域和输出设备的色域中的第二组颜色映射成输出设备的色域中的第一组颜色，但不在色域 的输入设备。 可以以需要识别第一和第二组颜色的方式导出补偿变换，然后确定将第二组颜色映射成第一和第二组颜色的并集的一个或多个缩放因子。

公开(公告)号：US06370271B2

公开(公告)日：2002-04-09

申请号：US09302680

申请日：1999-04-30

Applicant: Bin Fu ,  Anoop Bhattacharjya

Inventor： Bin Fu ,  Anoop Bhattacharjya

IPC: G06K964

CPC classification number: G06K9/46

Abstract: Pattern detection methods, which may be embodied in copiers or scanners/printers, examine documents to be copied or printed to determine whether the documents contain one or more targeted patterns. The pattern detection methods include algorithms that look for certain features and geometric relationships between the features in determining whether one or more of the targeted patterns are present.

Abstract translation: 可以体现在复印机或扫描仪/打印机中的图案检测方法检查要复印或打印的文件，以确定文件是否包含一个或多个目标图案。 模式检测方法包括在确定一个或多个目标模式是否存在时查找特征之间的某些特征和几何关系的算法。

公开(公告)号：US06185004B2

公开(公告)日：2001-02-06

申请号：US09050867

申请日：1998-03-30

Applicant: Tsung-Nan Lin ,  Anoop Bhattacharjya

Inventor： Tsung-Nan Lin ,  Anoop Bhattacharjya

IPC: G06F1500

CPC classification number: H04N1/6033

Abstract: A recalibration transformation is derived for a color image reproduction system having an input device and an output device by obtaining a medium conveying a selected color within a current gamut of the output device represented by first values in a first color space, scanning the medium with the input device to obtain second values representing the selected color in a second color space, applying a calibration transformation to map the second values to third values in the first color space, deriving an error transformation that maps from the first values to the third values, and deriving the recalibration transformation from an inverse of the error transformation that maps from the third values to the first values.

Abstract translation: 对于具有输入装置和输出装置的彩色图​​像再现系统，通过获得在第一颜色空间中由第一值表示的输出装置的当前色域内输入选定颜色的介质，导出重新校准变换， 输入装置，以获得在第二颜色空间中表示所选颜色的第二值，应用校准变换将第二值映射到第一颜色空间中的第三值，导出从第一值映射到第三值的误差变换，以及 从从第三个值映射到第一个值的误差变换的反向导出重新校正变换。

公开(公告)号：US6088512A

公开(公告)日：2000-07-11

申请号：US890611

申请日：1997-07-09

Applicant: Hakan Ancin ,  Anoop Bhattacharjya ,  Joseph Shu

Inventor： Hakan Ancin ,  Anoop Bhattacharjya ,  Joseph Shu

IPC: G09G3/20 ,  G09G3/36 ,  B41B15/00 ,  B41J15/00 ,  H04N1/40

CPC classification number: G09G3/3611 ,  G09G3/2018 ,  G09G3/2051 ,  G09G3/2059

Abstract: Dither thresholds are assigned one after the other to matrix locations in the process of generating a dither matrix used for printer half-toning. The matrix location to be assigned the next threshold is chosen by locating the tightest cluster or largest void in the dot pattern that will result from the gray level with which the threshold being assigned is associated. Measures of cluster tightness for low-range and high-range thresholds are based on the areas of Voronoi partitions associated with respective candidate locations. For mid-range thresholds, a Gaussian-filter output is used as the measure. In both cases, ties between candidate locations are resolved by applying a further criterion, which depends on the candidate locations' proximities to locations assigned thresholds the same as the one being assigned or differing from it by only one. If a tie still remains, the matrix is divided into blocks, a determination is made of the number of dots that will result from various blocks' thresholds at the gray level associated with the threshold being assigned, and a choice is made among the remaining candidate locations in accordance with the numbers of dots determined for the respective blocks in which they are located.

Abstract translation: 在生成用于打印机半色调的抖动矩阵的过程中，将抖动阈值一个接一个地分配给矩阵位置。 通过定位由分配的阈值与其分配的灰度级相关联的点阵图形中最紧密的聚类或最大空隙来选择要分配下一个阈值的矩阵位置。 针对低范围和高范围阈值的聚类紧密度的测量是基于与各个候选位置相关联的Voronoi分区的区域。 对于中档阈值，使用高斯滤波器输出作为度量。 在这两种情况下，通过应用另外的标准来解决候选位置之间的关系，该标准取决于候选位置与分配的阈值的位置的接近度，与仅被一个分配的阈值相同。 如果领带仍然存在，则矩阵被分成块，确定将由与分配的阈值相关联的灰度级处的各种块的阈值导致的点数，并且在剩余候选者中进行选择 根据它们所位于的各个块确定的点数来确定位置。

公开(公告)号：US20070183684A1

公开(公告)日：2007-08-09

申请号：US11350303

申请日：2006-02-08

Applicant: Anoop Bhattacharjya

Inventor： Anoop Bhattacharjya

IPC: G06K9/40

CPC classification number: G06T5/008 ,  G06T5/20 ,  G06T5/40 ,  G06T2207/20012 ,  G06T2207/20016 ,  G06T2207/20192

Abstract: Systems and methods are disclosed that obtain detail information of an input image by employing multiple filters that present multi-resolution views of the image data. In embodiments, systems and methods perform contrast adjustment by employing a plurality of edge-preserving adaptive filters (EPAF), which generate images at multiple levels of resolution. An edge-preserving adaptive filter comprises a set of filters comprising a set of spatial filters with the same kernel size but with differing spatial orientations. For an input pixel value that is filtered, each of the plurality of edge-preserving adaptive filters outputs the filtered pixel value obtained from its set of filters that has the smallest numerical difference from the input pixel value.

Abstract translation: 公开了通过采用呈现图像数据的多分辨率视图的多个滤波器来获得输入图像的细节信息的系统和方法。 在实施例中，系统和方法通过采用多个边缘保留自适应滤波器（EPAF）来执行对比度调整，其生成多个分辨率级别的图像。 边缘保留自适应滤波器包括一组滤波器，其包括具有相同核大小但具有不同空间取向的一组空间滤波器。 对于滤波的输入像素值，多个边缘保留自适应滤波器中的每一个输出从其与输入像素值具有最小数值差的滤波器组获得的滤波像素值。

公开(公告)号：US20070126938A1

公开(公告)日：2007-06-07

申请号：US11294023

申请日：2005-12-05

Applicant: Kar-Han Tan ,  Anoop Bhattacharjya

Inventor： Kar-Han Tan ,  Anoop Bhattacharjya

IPC: G09B25/00 ,  H04N5/66

CPC classification number: H04N5/44591 ,  G03B21/26 ,  H04N5/144 ,  H04N9/3179 ,  H04N9/74 ,  H04N21/4122 ,  H04N21/4131 ,  H04N21/42202 ,  H04N21/42222 ,  H04N21/4318 ,  H04N21/44008 ,  H04N21/44218

Abstract: A surround visual field that has a characteristic or characteristics that relate to an audio/visual presentation is described. In one embodiment, the surround visual field is projected on an area partially surrounding or surrounding video content being displayed on a device. This surround visual field may be comprised of a plurality of elements that further enhance the visual effect of the content being displayed. For example, one embodiment of the invention provides for elements within the surround visual field to move in relation to motion within the video content being displayed. Other characteristics of the video content may also be supplemented by the surround visual field or the surround visual field may simply be authored to correspond to the content itself.

Abstract translation: 描述具有与音频/视频呈现相关的特征或特征的环绕视野。 在一个实施例中，环绕视野被投影在正在显示在设备上的部分围绕或围绕视频内容的区域上。 该环绕视野可以由进一步增强被显示的内容的视觉效果的多个元素组成。 例如，本发明的一个实施例提供了环绕视野内的元件，以相对于所显示的视频内容内的运动而移动。 视频内容的其他特征也可以由环绕视野补充，或者可以简单地创作环绕视野来对应于内容本身。

公开(公告)号：US20070009169A1

公开(公告)日：2007-01-11

申请号：US11177804

申请日：2005-07-08

Applicant: Anoop Bhattacharjya

Inventor： Anoop Bhattacharjya

IPC: G06K9/40

CPC classification number: H04N5/23248 ,  G06T5/003 ,  G06T5/10 ,  G06T2207/20056 ,  G06T2207/20201 ,  H04N5/23254 ,  H04N5/2327

Abstract: Systems and methods are disclosed for deblurring a captured image using parametric deconvolution, instead of a blind, non-parametric deconvolution, by incorporating physical constraints derived from sensor inputs, such as a motion sensor, into the deconvolution process to constrain modifications to the point spread function. In an embodiment, a captured image is deblurred using a point spread function obtained from the cross-validation of information across a plurality of image blocks taken from the capture image, which image blocks are deconvolved using parametric deconvolution to constrain modifications to the point spread function.

Abstract translation: 公开了系统和方法，通过将从诸如运动传感器的传感器输入导出的物理约束并入到去卷积过程中来限制对点扩展的修改，使用参数去卷积来代替盲目的非参数去卷积去除捕获的图像 功能。 在一个实施例中，使用从从捕获图像获取的多个图像块的信息的交叉验证获得的点扩散函数去除模糊的图像，该图像块使用参数去卷积去卷积以约束对点扩散函数的修改 。

公开(公告)号：US20070008335A1

公开(公告)日：2007-01-11

申请号：US11177787

申请日：2005-07-08

Applicant: Anoop Bhattacharjya

Inventor： Anoop Bhattacharjya

IPC: G09G5/02

CPC classification number: G09G3/2003 ,  G09G3/2051 ,  G09G5/06

Abstract: Methods for choosing and combining colors from a color palette to render an image color tone are disclosed. A set of up to four palette colors are chosen and the weighted factors for combining the chosen palette to render the image color are determined. The weighted factors of the chosen palette colors are ordered according to an ordering criterion or criteria. The color output of a display pixel is the chosen palette color associated with the interval in which the threshold value falls. Color data compression may also be achieved by eliminating at least one color from the set of chosen palette colors used to render an image color that fails to exceed a specified threshold value. Also disclosed are methods for designing uniform and non-uniform color palettes.

Abstract translation: 公开了从调色板中选择和组合颜色以呈现图像色调的方法。 选择一组最多四个调色板颜色，并确定组合所选调色板以渲染图像颜色的加权因子。 所选调色板颜色的加权因子根据排序标准或标准进行排序。 显示像素的颜色输出是与阈值下降的间隔相关联的选择的调色板颜色。 颜色数据压缩也可以通过从用于渲染不能超过指定阈值的图像颜色的所选择的调色板组中消除至少一种颜色来实现。 还公开了用于设计均匀和不均匀调色板的方法。

公开(公告)号：US20060078310A1

公开(公告)日：2006-04-13

申请号：US10963358

申请日：2004-10-12

Applicant: Anoop Bhattacharjya

Inventor： Anoop Bhattacharjya

IPC: H04N5/76 ,  H04N5/225

CPC classification number: G06T5/50 ,  G06T7/97 ,  H04N5/2355

Abstract: Techniques for locating one or more regions of interest in a frame sequence by tracking activity at pixel locations in the sequence enables subsequent manipulation of color pixel values to achieve various interesting effects, such as time-scale filtering, color-based filtering and user selected motion control. The data structure for storing color information at each pixel location is one or more hyperspheres. The color signal of each pixel in the frame sequence at a given location is examined and new hyperspheres are created or existing ones updated as the pixel signals are examined. At the end of the process, each sphere associated with the given pixel location stores a final center color value, the number of pixels, and a radius value that is proportional to the signal variance of the pixels in that sphere. Based on the data collected, select pixel values in one or more select frames can be modified to achieve the desired effect(s).

Abstract translation: 通过跟踪序列中的像素位置处的活动来定位帧序列中的一个或多个感兴趣区域的技术使得能够随后操作彩色像素值以实现各种有趣的效果，例如时间尺度滤波，基于颜色的滤波和用户选择的运动 控制。 用于在每个像素位置存储颜色信息的数据结构是一个或多个超球体。 检查在给定位置处的帧序列中的每个像素的颜色信号，并且随着像素信号被检查而创建新的超球体或更新的超球体。 在该过程结束时，与给定像素位置相关联的每个球存储最终的中心色值，像素数，以及与该球体中像素的信号方差成比例的半径值。 基于收集的数据，可以修改一个或多个选择帧中的像素值，以获得所需的效果。

公开(公告)号：US20060077415A1

公开(公告)日：2006-04-13

申请号：US10909456

申请日：2004-08-02

Applicant: Anoop Bhattacharjya ,  Vasudev Bhaskaran

Inventor： Anoop Bhattacharjya ,  Vasudev Bhaskaran

IPC: G06K15/00

CPC classification number: H04N1/32144 ,  G03G15/50 ,  H04N2201/3246

Abstract: Smart printing/copying techniques for controlling the printing/copying and editing of a document based on document-descriptive and control information embedded in the printed output. These “smart” printing/copying techniques and controls allow a document user to control printing/copying costs by making tradeoffs with respect to quality and speed based on the embedded data. Such costs may be controlled, for example, by initially printing low cost (low quality, high speed) pages for distribution, while giving subsequent recipients of the document the option of making high quality (higher cost, possibly slower) copies of any or all of the pages in the document, if desired. With these features, a user is able to obtain high quality copies from low quality originals. The techniques of the present invention also allow a recipient to edit page content prior to reprinting, without loss of print output quality.

Abstract translation: 基于嵌入在打印输出中的文档描述和控制信息来控制文档的打印/复制和编辑的智能打印/复印技术。 这些“智能”打印/复印技术和控件允许文档用户通过基于嵌入数据相对于质量和速度进行权衡来控制打印/复印成本。 这样的成本可以通过例如初始印刷低成本（低质量，高速）页面进行分发来控制，同时给予文档的后续接收者可以选择将任何或全部的高质量（较高成本，可能更慢）的副本 如果需要，文档中的页面。 通过这些功能，用户能够从低质量的原件获得高质量的副本。 本发明的技术还允许接收者在重新打印之前编辑页面内容，而不损失打印输出质量。