公开(公告)号：US20070217701A1

公开(公告)日：2007-09-20

申请号：US11691418

申请日：2007-03-26

Applicant: Che-Bin Liu ,  Anoop Bhattacharjya

Inventor： Che-Bin Liu ,  Anoop Bhattacharjya

IPC: G06K9/36

CPC classification number: G06K9/38 ,  G06K2209/011 ,  H04N1/409

Abstract: Disclosed are embodiments of systems and methods to generate a composite image from an captured image, such as from a whiteboard, chalkboard, paper, card, poster, sign, or the like. Systems and methods are disclosed for generating a foreground image layer and mask layer, which enables high-quality and high-ratio document compression. In embodiments, a foreground image layer and mask layer may be generated by identifying non-background pixels in the captured image.

Abstract translation: 公开了从捕获的图像（例如从白板，黑板，纸张，卡片，海报，标志等）生成合成图像的系统和方法的实施例。 公开了用于生成前景图像层和掩模层的系统和方法，其实现了高质量和高比率的文档压缩。 在实施例中，可以通过识别捕获的图像中的非背景像素来生成前景图像层和掩模层。

公开(公告)号：US20070189615A1

公开(公告)日：2007-08-16

申请号：US11691339

申请日：2007-03-26

Applicant: Che-Bin Liu ,  Anoop Bhattacharjya

Inventor： Che-Bin Liu ,  Anoop Bhattacharjya

IPC: G06K9/36 ,  G06K9/00

CPC classification number: H04N1/409 ,  G06K9/38 ,  G06K2209/01

Abstract: Disclosed are embodiments of systems and methods to generate background and foreground images for a document, which enables high-quality and high-ratio document compression. In embodiments, high-accuracy layer processing enables text enhancement, paper color removal, and many other advanced image analysis and processing. Embodiments of the systems support several operation modes and its many parameters, such as layer compression ratios, image segmentation, and modulized image processing, may be adjusted to generate optimal compressed files for different purposes.

Abstract translation: 公开了用于为文档生成背景和前景图像的系统和方法的实施例，其实现高质量和高比例的文档压缩。 在实施例中，高精度层处理使得文本增强，纸张颜色去除以及许多其他高级图像分析和处理成为可能。 系统的实施例支持若干操作模式，并且可以调整其诸如层压缩率，图像分割和模块化图像处理等许多参数，以便为不同目的生成最佳压缩文件。

公开(公告)号：US20070106482A1

公开(公告)日：2007-05-10

申请号：US11260964

申请日：2005-10-28

Applicant: Ali Zandifar ,  Anoop Bhattacharjya

Inventor： Ali Zandifar ,  Anoop Bhattacharjya

IPC: G01R35/00

CPC classification number: G09G3/2092 ,  G06T7/80 ,  G09G2320/0693

Abstract: Systems and methods are disclosed for calibrating an imaging system comprising a processing unit communicatively coupled to one or more imaging devices. The imaging system may also include a display. In an embodiment, a sequence of display features are displayed on a display, and imaged by the imaging device or devices. Spatial data is compiled related to the display features and the corresponding image features. In an embodiment, the display, imaging device or device, or both may be repositioned and another sequence of display features may be presented and the spatial data compiled. Using optimization and calibration techniques, the compiled spatial data may be used to obtain one or more internal imaging device parameters, one or more external parameters, or both.

Abstract translation: 公开了用于校准包括通信地耦合到一个或多个成像装置的处理单元的成像系统的系统和方法。 成像系统还可以包括显示器。 在一个实施例中，显示特征的序列显示在显示器上，并由成像设备或设备成像。 与显示特征和相应的图像特征相关的空间数据被编译。 在一个实施例中，可以重新定位显示器，成像设备或设备，或者两者，并且可以呈现另一序列的显示特征并且编译空间数据。 使用优化和校准技术，编译的空间数据可用于获得一个或多个内部成像设备参数，一个或多个外部参数，或两者。

公开(公告)号：US06813367B1

公开(公告)日：2004-11-02

申请号：US09659197

申请日：2000-09-11

Applicant: Anoop Bhattacharjya

Inventor： Anoop Bhattacharjya

IPC: G06K900

CPC classification number: G06T1/005 ,  G06K9/18 ,  G06T2201/0051 ,  G06T2201/0062 ,  H04N1/32144 ,  H04N1/32203 ,  H04N1/32309

Abstract: A differential color or luminance signal is used to embed a binary message in selected stroke segments in the text of a document and for extracting a message so embedded. The bits representing the message are embedded in the stroke segments by modifying a color or luminance value of pixels in one region of a selected stroke with respect to such a value of pixels in a second region of that stroke. To determine whether a bit is embedded in a stroke segment, a value representative of the luminance or color of pixels in the one region is compared with a value representative of the luminance or color of pixels in the second region. The presence or absence of a bit is determined by whether the difference between the two values is greater than a minimum predetermined threshold.

Abstract translation: 差分颜色或亮度信号用于将二进制消息嵌入在文档文本中的所选择的笔划段中，并用于提取如此嵌入的消息。 表示消息的位通过相对于该笔划的第二区域中的像素值修改所选笔划的一个区域中的像素的颜色或亮度值而嵌入在笔划段中。 为了确定位是否嵌入在笔划段中，将代表一个区域中的像素的亮度或颜色的值与表示第二区域中的像素的亮度或颜色的值进行比较。 位的存在或不存在由两个值之间的差是否大于最小预定阈值来确定。

公开(公告)号：US06233060B1

公开(公告)日：2001-05-15

申请号：US09159401

申请日：1998-09-23

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

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

IPC: G06K1502

CPC classification number: G06T5/20 ,  H04N1/40075

Abstract: In an image reproduction system, an image processor analyzes a hierarchy of image representations of different resolutions to detect edges. In regions having edges that are detected in all hierarchical representations, little or no filtering is applied to the image. In regions having no edges or edges that are detected in only the highest-resolution representation, greater amounts of filtering are applied to the image. In regions having edges detected in two or more but not all hierarchical representations, an intermediate amount of filtering is applied to the image. In preferred embodiments, two-dimensional averaging filters of varying size are applied to the image. The size of the averaging filter is selected according to the number of hierarchical representations in which an edge is detected.

Abstract translation: 在图像再现系统中，图像处理器分析不同分辨率的图像表示的层次以检测边缘。 在具有在所有层次表示中检测到的边缘的区域中，对图像应用很少或不进行滤波。 在没有仅在最高分辨率表示中检测到边缘或边缘的区域中，对图像应用较大量的滤波。 在具有在两个或多个但不是全部分层表示中检测到的边缘的区域中，对图像应用中间量的过滤。 在优选实施例中，将不同大小的二维平均滤波器应用于图像。 平均滤波器的尺寸根据其中检测到边缘的分层表示的数量来选择。

公开(公告)号：US20070036435A1

公开(公告)日：2007-02-15

申请号：US11202720

申请日：2005-08-12

Applicant: Anoop Bhattacharjya

Inventor： Anoop Bhattacharjya

IPC: G06K9/34

CPC classification number: G06K9/38 ,  G06K2209/01 ,  H04N1/409

Abstract: Regions within a scanned document are labeled according to content. These labeled regions allow for particular enhancement and sharpening methods to be applied. The labeled regions may be further leveraged in subsequent rendering of the scanned document on a printer or other output device and/or in storing the scanned document.

Abstract translation: 扫描文档中的区域根据内容进行标记。 这些标记的区域允许应用特定的增强和锐化方法。 标记区域可以在随后将扫描的文档呈现在打印机或其他输出设备上和/或存储扫描的文档时被进一步利用。

公开(公告)号：US20060115153A1

公开(公告)日：2006-06-01

申请号：US11000316

申请日：2004-11-30

Applicant: Anoop Bhattacharjya

Inventor： Anoop Bhattacharjya

IPC: G06K9/34

CPC classification number: G06K9/38 ,  G06K9/00456 ,  G06K2209/01 ,  G06K2209/015

Abstract: An algorithm for estimating which pixels belong to the background of a scanned page. The algorithm is particularly designed to handle situations in which the page background varies in color/intensity, as is case when bleed-through artifacts from the reverse side of the page appear in the background. In determining background regions, including properly classifying bleed-through artifacts regions as such, the algorithm uses multiple local and global criteria for making the determination. In addition to being able to find large connected pieces of background, the algorithm is also able to find isolated islands of background by analyzing transition characteristics of neighboring regions. Regions are identified on the basis of similar local features and also by the nature of transitions between foreground regions that do not directly share a boundary. An adaptive white-point adjustment technique based on identified background regions improves the perceived quality of the printed output.

Abstract translation: 用于估计哪些像素属于扫描页的背景的算法。 该算法特别设计用于处理页面背景颜色/强度变化的情况，如在背景中出现来自页面背面的渗出伪像的情况。 在确定背景区域时，包括如此适当地分类渗流伪像区域，该算法使用多个本地和全局标准进行确定。 除了能够找到大连接的背景之外，该算法还能够通过分析相邻区域的过渡特征来找到孤立的背景孤岛。 区域基于类似的局部特征以及不直接共享边界的前景区域之间的转换的性质来识别。 基于识别的背景区域的自适应白点调整技术提高了印刷输出的感知质量。

公开(公告)号：US20050286799A1

公开(公告)日：2005-12-29

申请号：US10875901

申请日：2004-06-23

Applicant: Jincheng Huang ,  Anoop Bhattacharjya

Inventor： Jincheng Huang ,  Anoop Bhattacharjya

IPC: G06K9/00 ,  G06K9/40 ,  G06K9/46 ,  G06T7/00 ,  G06T11/00 ,  G09G5/00

CPC classification number: G06K9/00248 ,  G06K9/00234 ,  G06T7/74 ,  G06T11/00

Abstract: A method for creating a caricature image from a digital image is provided. The method initiates with capturing digital image data. The method includes locating a facial region within the captured image data. Then, a facial feature template matching a facial feature of the facial region is selected. Next, the facial feature template is substituted for the facial feature. Then, the facial feature template is transformed into a caricature or non-realistic image. A computer readable medium, an image capture device capable of creating a caricature from a captured image and an integrated circuit are also provided.

Abstract translation: 提供了一种从数字图像创建漫画图像的方法。 该方法开始捕获数字图像数据。 该方法包括在所捕获的图像数据内定位面部区域。 然后，选择与面部区域的面部特征相匹配的面部特征模板。 接下来，面部特征模板代替面部特征。 然后，面部特征模板被转换成漫画或非现实的图像。 还提供了一种计算机可读介质，能够从拍摄图像和集成电路创建漫画的图像捕获装置。

公开(公告)号：US20050190233A1

公开(公告)日：2005-09-01

申请号：US10788512

申请日：2004-02-27

Applicant: Anoop Bhattacharjya ,  Joseph Shu

Inventor： Anoop Bhattacharjya ,  Joseph Shu

IPC: B41J2/05 ,  B41J29/38

CPC classification number: B41J2/04505 ,  B41J2/04573 ,  B41J2/04586

Abstract: Nozzle scheduling algorithms that provide a unified approach to designing nozzle firing algorithms that incorporate a variety of specifiable nozzle-firing constraints such as print head (nozzle) geometry, nozzle spacing, number of nozzles, head movement (number of passes), ink-media interaction, etc. Such constraints are provided as design rules for a given printer/output medium, and the result is an appropriate nozzle firing algorithm. The design algorithms may be used to generate nozzle firing sequences in a halftone-dependent or halftone-independent manner.

Abstract translation: 喷嘴调度算法提供统一的方法来设计喷嘴喷射算法，其包括各种可指定的喷嘴约束，例如打印头（喷嘴）几何形状，喷嘴间距，喷嘴数量，喷头移动（通过次数），墨水介质 交互作用等。这些限制作为给定打印机/输出介质的设计规则提供，结果是合适的喷嘴喷射算法。 设计算法可用于以半色调依赖或半色调独立的方式产生喷嘴点火序列。

公开(公告)号：US20070133869A1

公开(公告)日：2007-06-14

申请号：US11304515

申请日：2005-12-14

Applicant: Anoop Bhattacharjya

Inventor： Anoop Bhattacharjya

IPC: G06K9/00

CPC classification number: H04N1/6075 ,  H04N1/52 ,  H04N1/58

Abstract: Systems and methods are disclosed that provide noise reduction for primary tones. In an embodiment, the systems and methods involve adjusting an input color toward a primary tone at the expense of replicating the input color according to its proper hue. The adjusted input color, when displayed by a display device, will be more visually appealing to a typical user.

Abstract translation: 公开了为初级音调提供降噪的系统和方法。 在一个实施例中，系统和方法包括以基于其适当色调的方式复制输入颜色的成本来调整朝向主色调的输入颜色。 当由显示装置显示时，经调整的输入颜色对于典型的用户将更具视觉吸引力。