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公开(公告)号：US20090251594A1
公开(公告)日：2009-10-08
申请号：US12060890
申请日：2008-04-02
申请人： Gang Hua , Cha Zhang , Zhengyou Zhang , Zicheng Liu , Ying Shan
发明人： Gang Hua , Cha Zhang , Zhengyou Zhang , Zicheng Liu , Ying Shan
IPC分类号： H04N7/01
CPC分类号： G06T11/00 , H04N1/3875 , H04N7/0122 , H04N21/2662
摘要： Videos are retargeted to a target display for viewing with little to no geometric distortion or video information loss. Salient regions of video frames may be determined using scale-space spatiotemporal information. Video information loss may be a result of spatial loss, due to cropping, and resolution loss, due to resizing. A desired cropping window may be determined using a coarse-to-fine searching strategy. Video frames may be cropped with a window that matches an aspect ratio of the target display, and resized isotropically to match a size of the target display.
摘要翻译： 视频被重定向到目标显示器，用于观看几乎没有几何失真或视频信息丢失。 可以使用尺度空间时空信息来确定视频帧的显着区域。 视频信息丢失可能是由于调整大小而导致的空间损失，由于裁剪和分辨率损失造成的。 可以使用粗略到精细的搜索策略来确定期望的裁剪窗口。 可以用与目标显示器的纵横比匹配的窗口裁剪视频帧，并且各向同性地调整大小以匹配目标显示器的大小。
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公开(公告)号：US09240056B2
公开(公告)日：2016-01-19
申请号：US12060890
申请日：2008-04-02
申请人： Gang Hua , Cha Zhang , Zhengyou Zhang , Zicheng Liu , Ying Shan
发明人： Gang Hua , Cha Zhang , Zhengyou Zhang , Zicheng Liu , Ying Shan
CPC分类号： G06T11/00 , H04N1/3875 , H04N7/0122 , H04N21/2662
摘要： Videos are retargeted to a target display for viewing with little to no geometric distortion or video information loss. Salient regions of video frames may be determined using scale-space spatiotemporal information. Video information loss may be a result of spatial loss, due to cropping, and resolution loss, due to resizing. A desired cropping window may be determined using a coarse-to-fine searching strategy. Video frames may be cropped with a window that matches an aspect ratio of the target display, and resized isotropically to match a size of the target display.
摘要翻译： 视频被重定向到目标显示器，用于观看几乎没有几何失真或视频信息丢失。 可以使用尺度空间时空信息来确定视频帧的显着区域。 视频信息丢失可能是由于调整大小而导致的空间损失，由于裁剪和分辨率损失造成的。 可以使用粗略到精细的搜索策略来确定期望的裁剪窗口。 可以用与目标显示器的纵横比匹配的窗口裁剪视频帧，并且各向同性地调整大小以匹配目标显示器的大小。
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公开(公告)号：US20090220165A1
公开(公告)日：2009-09-03
申请号：US12039741
申请日：2008-02-29
申请人： Zicheng Liu , Ying Shan , Cha Zhang , Gang Hua , Zhengyou Zhang
发明人： Zicheng Liu , Ying Shan , Cha Zhang , Gang Hua , Zhengyou Zhang
CPC分类号： G06F16/9577
摘要： Efficient image display on a display screen (e.g., in terms of number, space, resolution, and/or distortion) is facilitated by implementing one or more specialized select and pack routines for images. That is, representative images are selected from an image database, based on desired resolution and distortion, then resized and packed into a display arrangement that enhances use of display screen space. This allows, for example, images to be sent to a user from an image database more quickly, with more desirable resolution, and less distortion than traditional display techniques.
摘要翻译： 通过为图像实现一个或多个专门的选择和包程序，便于在显示屏幕上（例如，在数量，空间，分辨率和/或失真方面）上的高效图像显示。 也就是说，基于期望的分辨率和失真从图像数据库中选择代表性图像，然后将其调整大小并将其打包成增强显示屏空间使用的显示装置。 例如，这允许从传统的显示技术更快地，从图像数据库向用户发送图像，具有更理想的分辨率和更少的失真。
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公开(公告)号：US07020347B2
公开(公告)日：2006-03-28
申请号：US10126118
申请日：2002-04-18
申请人： Zhengyou Zhang , Zicheng Liu , Ying Shan
发明人： Zhengyou Zhang , Zicheng Liu , Ying Shan
CPC分类号： G06T15/04 , G06T11/001
摘要： A system and method, called Image-Based Surface Detail Transfer, to transfer geometric details from one surface of an object in an image to another with simple 2D image operations. The basic observation is that, without knowing its 3D geometry, geometric details (local deformations) can be extracted from a single image of an object in a way independent of its surface reflectance, and furthermore, these geometric details can be transferred to modify the appearance of other objects directly in images. Examples are shown including surface detail transfer between real objects, as well as between real and synthesized objects.
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公开(公告)号：US06828972B2
公开(公告)日：2004-12-07
申请号：US10131972
申请日：2002-04-24
申请人： Zhengyou Zhang , Zicheng Liu , Ying Shan
发明人： Zhengyou Zhang , Zicheng Liu , Ying Shan
IPC分类号： G06T1500
CPC分类号： G06T13/40 , G06K9/00268 , G06K9/00308 , G06T2210/44
摘要： A system and method for mapping facial expressions. Facial expressions exhibit not only facial feature motions, but also subtle changes in illumination and appearance (e.g., facial creases and wrinkles). These details are important visual cues, but they are difficult to synthesize. Traditional expression mapping techniques consider feature motions while the details in illumination changes are ignored. A novel technique for facial expression mapping is presented. The illumination change of one person's expression is captured in what is called expression ratio image (ERI). Together with geometric warping, an ERI is mapped to any other person's face image to generate more expressive facial expressions.
摘要翻译： 一种用于映射面部表情的系统和方法。 面部表情不仅表现出面部特征运动，还表现出照明和外观的微妙变化（例如面部皱纹和皱纹）。 这些细节是重要的视觉线索，但它们很难合成。 传统表达映射技术考虑特征运动，而照明变化的细节被忽略。 提出了一种面部表情映射的新技术。 一个人的表情的照明变化被称为表达比例图像（ERI）。 与几何翘曲一起，ERI被映射到任何其他人的脸部图像，以产生更具表现力的面部表情。
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公开(公告)号：US07200281B2
公开(公告)日：2007-04-03
申请号：US11108545
申请日：2005-04-18
申请人： Zhengyou Zhang , Zicheng Liu , Ying Shan
发明人： Zhengyou Zhang , Zicheng Liu , Ying Shan
CPC分类号： G06T15/04 , G06T11/001
摘要： A system and method, called Image-Based Surface Detail Transfer, to transfer geometric details from one surface of an object in an image to another with simple 2D image operations. The basic observation is that, without knowing its 3D geometry, geometric details (local deformations) can be extracted from a single image of an object in a way independent of its surface reflectance, and furthermore, these geometric details can be transferred to modify the appearance of other objects directly in images. Examples are shown including surface detail transfer between real objects, as well as between real and synthesized objects.
摘要翻译： 一种称为基于图像的表面细节传输的系统和方法，通过简单的2D图像操作将图像中的对象的一个表面的几何细节传输到另一个。 基本的观察是，在不知道其3D几何形状的情况下，可以以独立于其表面反射率的方式从对象的单个图像中提取几何细节（局部变形），此外，这些几何细节可以被转移以修改外观 的其他对象直接在图像。 示例的实例包括真实对象之间的表面细节传递，以及真实对象和合成对象之间的表面细节传递。
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公开(公告)号：US20050180657A1
公开(公告)日：2005-08-18
申请号：US11108545
申请日：2005-04-18
申请人： Zhengyou Zhang , Zicheng Liu , Ying Shan
发明人： Zhengyou Zhang , Zicheng Liu , Ying Shan
CPC分类号： G06T15/04 , G06T11/001
摘要： A system and method, called Image-Based Surface Detail Transfer, to transfer geometric details from one surface of an object in an image to another with simple 2D image operations. The basic observation is that, without knowing its 3D geometry, geometric details (local deformations) can be extracted from a single image of an object in a way independent of its surface reflectance, and furthermore, these geometric details can be transferred to modify the appearance of other objects directly in images. Examples are shown including surface detail transfer between real objects, as well as between real and synthesized objects.
摘要翻译： 一种称为基于图像的表面细节传输的系统和方法，通过简单的2D图像操作将图像中的对象的一个表面的几何细节传输到另一个。 基本的观察是，在不知道其3D几何形状的情况下，可以以独立于其表面反射率的方式从对象的单个图像中提取几何细节（局部变形），此外，这些几何细节可以被转移以修改外观 的其他对象直接在图像。 示例的实例包括真实对象之间的表面细节传递，以及真实对象和合成对象之间的表面细节传递。
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公开(公告)号：US08281334B2
公开(公告)日：2012-10-02
申请号：US12059255
申请日：2008-03-31
申请人： Ying Shan , Yue Zhou , Xu Liu , Ying Li , Zhengyou Zhang
发明人： Ying Shan , Yue Zhou , Xu Liu , Ying Li , Zhengyou Zhang
CPC分类号： G06Q30/02 , G06T7/97 , G06T2207/10016 , G06T2207/20021
摘要： Systems, methods, computer-readable media, and graphical user interfaces for facilitating advertisement placement over video content are provided. Images within a video are partitioned into image regions. Upon partitioning images into image regions, an intrusiveness score is determined for each image region. Based on the intrusiveness scores, optimal placement of an advertisement within the video is determined.
摘要翻译： 提供了系统，方法，计算机可读介质和图形用户界面，以便于通过视频内容进行广告放置。 视频内的图像被分割成图像区域。 在将图像分割成图像区域时，针对每个图像区域确定侵入性分数。 基于侵入性分数，确定视频内的广告的最佳放置。
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公开(公告)号：US06931150B2
公开(公告)日：2005-08-16
申请号：US10462947
申请日：2003-06-16
申请人： Zhengyou Zhang , Ying Shan
发明人： Zhengyou Zhang , Ying Shan
CPC分类号： G06K9/32 , G06K9/00201 , G06T7/593 , G06T7/97 , G06T2207/10012 , H04N13/239 , H04N13/243 , H04N2013/0081
摘要： A method and a system for progressive stereo matching of digital images representing a scene. In general, the present invention uses a progressive iterative technique that includes a disparity gradient limit principle and a least commitment strategy. The progressive iterative technique finds generally unambiguous pixel matches by beginning with a few reliable pixel matches and finding progressively more unambiguous pixel matches. Unambiguous pixel matches found in the previous iteration are used to define the search ranges for each pixel to guide matching in the current iteration. Unambiguous pixel matches in the current iteration then are found using a novel correlation technique and based on a correlation score associated with a pixel match. The search range is capable of being rotated, and is part of a novel correlation technique of the present invention that provides a more robust estimate of pixel match reliability. Potential pixel matches found in the search ranges are tested for ambiguity and any unambiguous matches are selected and added to the set of reliable pixel matches. The ambiguity testing includes determining a correlation score for the pixel match and classifying the match based on the correlation score. The present invention also includes a system for progressive image matching that incorporates the method of the present invention.
摘要翻译： 用于表示场景的数字图像的渐进立体匹配的方法和系统。 通常，本发明使用包括视差梯度限制原理和最小承诺策略的渐进迭代技术。 渐进式迭代技术通过从几个可靠的像素匹配开始并逐渐找到更明确的像素匹配来发现一般的明确的像素匹配。 在前一次迭代中找到的明确像素匹配用于定义每个像素的搜索范围，以指导当前迭代中的匹配。 然后使用新颖的相关技术并且基于与像素匹配相关联的相关得分来找到当前迭代中的明确像素匹配。 搜索范围能够旋转，并且是本发明的新颖相关技术的一部分，其提供了对像素匹配可靠性的更鲁棒的估计。 对搜索范围中发现的潜在像素匹配进行模糊度测试，并选择任何明确匹配，并将其添加到可靠像素匹配集合中。 模糊度测试包括确定像素匹配的相关分数并基于相关分数对匹配进行分类。 本发明还包括一种包含本发明方法的逐行图像匹配系统。
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公开(公告)号：US20050163367A1
公开(公告)日：2005-07-28
申请号：US11082600
申请日：2005-03-17
申请人： Zhengyou Zhang , Ying Shan
发明人： Zhengyou Zhang , Ying Shan
CPC分类号： G06K9/32 , G06K9/00201 , G06T7/593 , G06T7/97 , G06T2207/10012 , H04N13/239 , H04N13/243 , H04N2013/0081
摘要： A method and a system for progressive stereo matching of digital images representing a scene. In general, the present invention uses a progressive iterative technique that includes a disparity gradient limit principle and a least commitment strategy. Generally unambiguous pixel matches are found by beginning with a few reliable pixel matches and finding progressively more unambiguous pixel matches. Unambiguous pixel matches are used to define the search ranges for each pixel to guide matching in the current iteration. Unambiguous pixel matches then are found using a novel correlation technique and based on a correlation score associated with a pixel match. The search range is capable of being rotated, and is part of a novel correlation technique that provides a more robust estimate of pixel match reliability. Potential pixel matches found in the search ranges are tested for ambiguity and unambiguous matches are selected and added to the reliable pixel matches.
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