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公开(公告)号：US20090022402A1
公开(公告)日：2009-01-22
申请号：US11878147
申请日：2007-07-20
申请人： Ho-young Lee , Jan P. Allebach , Xiaojun Feng , Yousun Bang , Heui-keun Choh
发明人： Ho-young Lee , Jan P. Allebach , Xiaojun Feng , Yousun Bang , Heui-keun Choh
IPC分类号： G06K9/46
CPC分类号： G06T3/4007 , H04N5/142
摘要： Provided is an image-resolution-improvement apparatus and method which can increase the resolution of an input image at a high magnification to thereby obtain a high-quality final image. The apparatus includes a textured-region-detection unit to detect a texture region in an input image; and a final-image-generation unit to synthesize a first intermediate image and a second intermediate image, which are obtained by applying different interpolation techniques to the texture region and a non-texture region excluding the texture region and generating a final image.
摘要翻译： 提供一种图像分辨率改善装置和方法，其可以以高放大倍数提高输入图像的分辨率，从而获得高质量的最终图像。 该装置包括：纹理区域检测单元，用于检测输入图像中的纹理区域; 以及合成第一中间图像和第二中间图像的最终图像生成单元，其通过将不同的插值技术应用于纹理区域和除纹理区域之外的非纹理区域并产生最终图像而获得。
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公开(公告)号：US08233748B2
公开(公告)日：2012-07-31
申请号：US11878147
申请日：2007-07-20
申请人： Ho-young Lee , Jan P. Allebach , Xiaojun Feng , Yousun Bang , Heui-keun Choh
发明人： Ho-young Lee , Jan P. Allebach , Xiaojun Feng , Yousun Bang , Heui-keun Choh
CPC分类号： G06T3/4007 , H04N5/142
摘要： Provided is an image-resolution-improvement apparatus and method which can increase the resolution of an input image at a high magnification to thereby obtain a high-quality final image. The apparatus includes a textured-region-detection unit to detect a texture region in an input image; and a final-image-generation unit to synthesize a first intermediate image and a second intermediate image, which are obtained by applying different interpolation techniques to the texture region and a non-texture region excluding the texture region and generating a final image.
摘要翻译： 提供一种图像分辨率改善装置和方法，其可以以高放大倍数提高输入图像的分辨率，从而获得高质量的最终图像。 该装置包括：纹理区域检测单元，用于检测输入图像中的纹理区域; 以及合成第一中间图像和第二中间图像的最终图像生成单元，其通过将不同的插值技术应用于纹理区域和除纹理区域之外的非纹理区域并产生最终图像而获得。
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3.发明授权公开(公告)号：US09042640B2
公开(公告)日：2015-05-26
申请号：US13349751
申请日：2012-01-13
申请人： Raja Bala , Zhigang Fan , Hengzhou Ding , Jan P. Allebach , Charles A. Bouman , Reuven J. Sherwin
发明人： Raja Bala , Zhigang Fan , Hengzhou Ding , Jan P. Allebach , Charles A. Bouman , Reuven J. Sherwin
CPC分类号： G06K9/00671 , G06K9/3258
摘要： As set forth herein, a computer-implemented method facilitates pre-analyzing an image and automatically suggesting to the user the most suitable regions within an image for text-based personalization. Image regions that are spatially smooth and regions with existing text (e.g. signage, banners, etc.) are primary candidates for personalization. This gives rise to two sets of corresponding algorithms: one for identifying smooth areas, and one for locating text regions. Smooth regions are found by dividing the image into blocks and applying an iterative combining strategy, and those regions satisfying certain spatial properties (e.g. size, position, shape of the boundary) are retained as promising candidates. In one embodiment, connected component analysis is performed on the image for locating text regions. Finally, based on the smooth and text regions found in the image, several alternative approaches are described herein to derive an overall metric for “suitability for personalization.”
摘要翻译： 如本文所述，计算机实现的方法有助于预分析图像并且自动地向用户建议图像内的最合适的区域用于基于文本的个性化。 具有空间平滑的图像区域和具有现有文本的区域（例如标牌，横幅等）是用于个性化的主要候选者。 这产生了两组相应的算法：一种用于识别平滑区域，一种用于定位文本区域。 通过将图像划分成块并应用迭代组合策略来找到平滑区域，并且满足某些空间属性（例如，边界的大小，位置，形状）的那些区域被保留为有希望的候选者。 在一个实施例中，对用于定位文本区域的图像执行连接分量分析。 最后，基于图像中发现的平滑和文本区域，本文描述了几种替代方法，以得出“适合个性化”的总体度量。
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公开(公告)号：US20130330004A1
公开(公告)日：2013-12-12
申请号：US13494173
申请日：2012-06-12
申请人： Raja Bala , Zhigang Fan , Hengzhou Ding , Jan P. Allebach , Charles A. Bouman
发明人： Raja Bala , Zhigang Fan , Hengzhou Ding , Jan P. Allebach , Charles A. Bouman
CPC分类号： G06K9/4604 , G06K9/3258 , G06K9/4638 , G06K2209/01 , G06T7/13 , G06T7/181 , G06T2207/10004
摘要： As set forth herein, systems and methods facilitate providing an efficient edge-detection and closed-contour based approach for finding text in natural scenes such as photographic images, digital, and/or electronic images, and the like. Edge information (e.g., edges of structures or objects in the images) is obtained via an edge detection technique. Edges from text characters form closed contours even in the presence of reasonable levels of noise. Closed contour linking and candidate text line formation are two additional features of the described approach. A candidate text line classifier is applied to further screen out false-positive text identifications. Candidate text regions for placement of text in the natural scene of the electronic image are highlighted and presented to a user.
摘要翻译： 如本文所述，系统和方法有助于提供有效的边缘检测和基于闭合轮廓的方法，用于在诸如照相图像，数字和/或电子图像等的自然场景中查找文本。 通过边缘检测技术获得边缘信息（例如，图像中的结构或对象的边缘）。 即使存在合理的噪声水平，文本字符的边缘也会形成封闭的轮廓。 闭合轮廓链接和候选文本线形成是所述方法的两个附加特征。 应用候选文本行分类器进一步筛选出假阳性文本标识。 用于在电子图像的自然场景中放置文本的候选文本区域被突出显示并呈现给用户。
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公开(公告)号：US06683998B2
公开(公告)日：2004-01-27
申请号：US10193931
申请日：2002-07-11
申请人： Brian Atkins , Charles A Bouman , Jan P. Allebach
发明人： Brian Atkins , Charles A Bouman , Jan P. Allebach
IPC分类号： G06K932
CPC分类号： G06T3/4007
摘要： An electronic database for image interpolation is generated by a computer. The computer generates a low-resolution image from a training image, a plurality of representative vectors from the low-resolution image, and a plurality of interpolation filters corresponding to each of the representative vectors. The interpolation filters and the representative vectors are generated off-line and can be used to perform image interpolation on an image other than the training image. The database can be stored in a device such as computer or a printer.
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6.发明授权Apparatus and method of building an electronic database for resolution synthesis 失效构建用于分辨率合成的电子数据库的装置和方法公开(公告)号：US06466702B1
公开(公告)日：2002-10-15
申请号：US09064638
申请日：1998-04-21
IPC分类号： G06K932
CPC分类号： G06T3/4007
摘要： An electronic database for image interpolation is generated by a computer. The computer generates a low-resolution image from a training image, a plurality of representative vectors from the low-resolution image, and a plurality of interpolation filters corresponding to each of the representative vectors. The interpolation filters and the representative vectors are generated off-line and can be used to perform image interpolation on an image other than the training image. The database can be stored in a device such as computer or a printer.
摘要翻译： 用于图像插值的电子数据库由计算机产生。 计算机从训练图像生成低分辨率图像，从低分辨率图像生成多个代表矢量，以及对应于每个代表矢量的多个内插滤波器。 内插滤波器和代表矢量离线生成，可以用于对训练图像以外的图像进行图像插值。 数据库可以存储在诸如计算机或打印机的设备中。
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公开(公告)号：US08619074B2
公开(公告)日：2013-12-31
申请号：US12964820
申请日：2010-12-10
申请人： Raja Bala , Zhigang Fan , Reiner Eschbach , Hengzhou Ding , Jan P. Allebach , Charles A. Bouman
发明人： Raja Bala , Zhigang Fan , Reiner Eschbach , Hengzhou Ding , Jan P. Allebach , Charles A. Bouman
IPC分类号： G06T15/00
摘要： As set forth herein, a computer-implemented method facilitates replacing text on cylindrical or curved surfaces in images. For instance, the user is first asked to perform a multi-click selection of a polygon to bound the text. A triangulation scheme is carried out to identify the pixels. Segmentation and erasing algorithms are then applied. The ellipses are estimated accurately through constrained least squares fitting. A 3D framework for rendering the text, including the central projection pinhole camera model and specification of the cylindrical object, is generated. These parameters are jointly estimated from the fitted ellipses as well as the two vertical edges of the cylinder. The personalized text is wrapped around the cylinder and subsequently rendered.
摘要翻译： 如本文所述，计算机实现的方法有助于在图像中的圆柱形或弯曲表面上替换文本。 例如，首先要求用户执行多边形的多点选择以绑定文本。 进行三角测量方案来识别像素。 然后应用分割和擦除算法。 通过约束最小二乘拟合精确估计椭圆。 生成用于呈现文本的3D框架，包括中心投影针孔相机模型和圆柱形对象的规格。 这些参数是从安装的椭圆以及气缸的两个垂直边缘共同估计的。 个性化文字包裹在圆柱体上并随后呈现。
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8.发明授权Method and apparatus for determining the stray-light point-spread function of an imaging system 有权用于确定成像系统的散射光点扩散功能的方法和装置公开(公告)号：US08396320B2
公开(公告)日：2013-03-12
申请号：US12523351
申请日：2008-01-18
IPC分类号： G06K9/40
CPC分类号： G06T5/003 , H04N17/002
摘要： A method of determining the point-spread function (PSF) of an imaging system includes the steps of capturing image data, establishing an idealized source spot, establishing a functional form model, subtracting the captured image from the estimated image equation and determining a metric that measures the fit of the estimated image to the captured image. The functional form model may include both diffraction and aberration and stray light. The functional form model may be optimized to reduce the metric to an acceptable level.
摘要翻译： 确定成像系统的点扩展函数（PSF）的方法包括以下步骤：捕获图像数据，建立理想源点，建立功能形式模型，从估计图像方程中减去所捕获的图像，并确定 测量估计图像对捕获图像的拟合。 功能形式模型可以包括衍射和像差以及杂散光。 可以优化功能形式模型以将度量降低到可接受的水平。
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9.发明授权Image printing devices with AM/FM half-toning with self-determination of dot size and method of implementing same 有权具有自动确定点尺寸的AM / FM半色调图像打印设备及其实现方法公开(公告)号：US06982814B1
公开(公告)日：2006-01-03
申请号：US09648531
申请日：2000-08-23
申请人： Allen L. Frazier , Jan P. Allebach
发明人： Allen L. Frazier , Jan P. Allebach
CPC分类号： G06K15/02 , G06K15/181
摘要： The data required to specify an image which is to be printed by a printing device, such as an ink-jet or laser printer, can be substantially reduced by omitting the data specifying the dot size or amplitude modulation (AM). Instead, the processor of the printing device determines the dot density in the immediate vicinity of each dot and, from that density measurement, calculates the appropriate dot size and modulates the dot size accordingly when driving the print head or print laser.
摘要翻译： 通过省略指定点大小或幅度调制（AM）的数据，可以大大减少用于指定要由诸如喷墨或激光打印机之类的打印装置打印的图像所需的数据。 相反，打印装置的处理器确定每个点附近的点密度，并且从该浓度测量计算适当的点尺寸并在驱动打印头或打印激光时相应地调节点尺寸。
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公开(公告)号：US08837830B2
公开(公告)日：2014-09-16
申请号：US13494173
申请日：2012-06-12
申请人： Raja Bala , Zhigang Fan , Hengzhou Ding , Jan P. Allebach , Charles A. Bouman
发明人： Raja Bala , Zhigang Fan , Hengzhou Ding , Jan P. Allebach , Charles A. Bouman
IPC分类号： G06K9/34
CPC分类号： G06K9/4604 , G06K9/3258 , G06K9/4638 , G06K2209/01 , G06T7/13 , G06T7/181 , G06T2207/10004
摘要： As set forth herein, systems and methods facilitate providing an efficient edge-detection and closed-contour based approach for finding text in natural scenes such as photographic images, digital, and/or electronic images, and the like. Edge information (e.g., edges of structures or objects in the images) is obtained via an edge detection technique. Edges from text characters form closed contours even in the presence of reasonable levels of noise. Closed contour linking and candidate text line formation are two additional features of the described approach. A candidate text line classifier is applied to further screen out false-positive text identifications. Candidate text regions for placement of text in the natural scene of the electronic image are highlighted and presented to a user.
摘要翻译： 如本文所述，系统和方法有助于提供有效的边缘检测和基于闭合轮廓的方法，用于在诸如照相图像，数字和/或电子图像等的自然场景中查找文本。 通过边缘检测技术获得边缘信息（例如，图像中的结构或对象的边缘）。 即使存在合理的噪声水平，文本字符的边缘也会形成封闭的轮廓。 闭合轮廓链接和候选文本线形成是所述方法的两个附加特征。 应用候选文本行分类器进一步筛选出假阳性文本标识。 用于在电子图像的自然场景中放置文本的候选文本区域被突出显示并呈现给用户。
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