公开(公告)号：US07184063B2

公开(公告)日：2007-02-27

申请号：US10932555

申请日：2004-09-01

申请人： Heung-Yeung Shum ,  Ying-Qing Xu ,  Qi Ren

发明人： Heung-Yeung Shum ,  Ying-Qing Xu ,  Qi Ren

IPC分类号： G09G5/00

CPC分类号： G06T11/001 ,  G09G5/00 ,  G09G2340/12 ,  G09G2340/14 ,  H04N9/76

摘要： Techniques are described for adaptive changing a displayed foreground color when a conflict between the displayed foreground color and an extracted background color is detected. Upon detection of such a conflict, a new foreground color is selected in accordance with a predetermined legibility criterion. That is, a color pool candidate may be considered to be a viable foreground color if a legibility value for the candidate color in relation to the extracted background color exceeds a predetermined legibility threshold value.

摘要翻译： 描述了当检测到所显示的前景色和提取的背景颜色之间的冲突时自适应地改变显示的前景色的技术。 在检测到这样的冲突时，根据预定的可读性标准选择新的前景色。 也就是说，如果与所提取的背景颜色相关的候选颜色的可读性值超过预定的可读性阈值，则颜色池候选可以被认为是可行的前景颜色。

公开(公告)号：US07129944B2

公开(公告)日：2006-10-31

申请号：US11000607

申请日：2004-12-01

申请人： Baining Guo ,  Stephen S. Lin ,  Heung-Yeung Shum ,  Ying-Qing Xu ,  Yanyun Chen

发明人： Baining Guo ,  Stephen S. Lin ,  Heung-Yeung Shum ,  Ying-Qing Xu ,  Yanyun Chen

IPC分类号： G06T15/60

CPC分类号： G06T15/50 ,  G06T15/00 ,  G06T17/00 ,  G06T2210/16 ,  G06T2210/62

摘要： A method and system for efficient synthesis of photorealistic free-form knitwear, where a single cross-section of yarn serves as the basic primitive for modeling entire articles of knitwear. This primitive, called the lumislice, describes radiance from a yarn cross-section based on fine-level interactions, including occlusion, shadowing, and multiple scattering, among yarn fibers. By representing yarn as a sequence of identical but rotated cross-sections, the lumislice can effectively propagate local microstructure over arbitrary stitch patterns and knitwear shapes. This framework accommodates varying levels of detail and capitalizes on hardware-assisted transparency blending. To further enhance realism, a technique for generating soft shadows from yarn is also introduced.

公开(公告)号：US07042456B2

公开(公告)日：2006-05-09

申请号：US10623425

申请日：2003-07-18

申请人： Yanyun Chen ,  Baining Guo ,  Ying-Qing Xu ,  Heung-Yeung Shum

发明人： Yanyun Chen ,  Baining Guo ,  Ying-Qing Xu ,  Heung-Yeung Shum

IPC分类号： G09G5/00 ,  G06F15/167

CPC分类号： G06T17/20 ,  G06T15/10

摘要： The present invention provides a systematic method for rendering feathers. In one aspect, a segment of a rachis having a first barb and second barb is generated. The first barb is generated based on a first barb length and the second barb is generated based on a second barb length.

摘要翻译： 本发明提供了一种用于渲染羽毛的系统方法。 在一个方面，产生具有第一倒钩和第二倒钩的轴的段。 基于第一倒钩长度产生第一倒钩，并且基于第二倒钩长度产生第二倒钩。

公开(公告)号：US07039216B2

公开(公告)日：2006-05-02

申请号：US10997401

申请日：2004-11-24

申请人： Heung-Yeung Shum ,  Ying-Qing Xu ,  Hong Chen

发明人： Heung-Yeung Shum ,  Ying-Qing Xu ,  Hong Chen

IPC分类号： G06K9/00

CPC分类号： G06T11/00 ,  G06K9/00221 ,  G06T7/149 ,  G06T11/001 ,  G06T2207/20081 ,  G06T2207/30201

摘要： An example-based facial sketch system and process that automatically generates a sketch from an input image depicting a person's face. Sketch generation is accomplished by first training the system using example facial images and sketches of the depicted faces drawn with a particular style by a sketch artist. The trained system is then used to automatically generate a facial sketch that simulates the artist's style from an input image depicting a person's face. Nonparametric sampling and a flexible sketch model are employed to capture the complex statistical characteristics between an image and its sketch.

公开(公告)号：US20060044324A1

公开(公告)日：2006-03-02

申请号：US10932555

申请日：2004-09-01

申请人： Heung-Yeung Shum ,  Ying-Qing Xu ,  Qi Ren

发明人： Heung-Yeung Shum ,  Ying-Qing Xu ,  Qi Ren

IPC分类号： G09G5/02

CPC分类号： G06T11/001 ,  G09G5/00 ,  G09G2340/12 ,  G09G2340/14 ,  H04N9/76

摘要： Techniques are described for adaptive changing a displayed foreground color when a conflict between the displayed foreground color and an extracted background color is detected. Upon detection of such a conflict, a new foreground color is selected in accordance with a predetermined legibility criterion. That is, a color pool candidate may be considered to be a viable foreground color if a legibility value for the candidate color in relation to the extracted background color exceeds a predetermined legibility threshold value.

摘要翻译： 描述了当检测到所显示的前景色和提取的背景颜色之间的冲突时自适应地改变显示的前景色的技术。 在检测到这样的冲突时，根据预定的可读性标准选择新的前景色。 也就是说，如果与所提取的背景颜色相关的候选颜色的可读性值超过预定的可读性阈值，则颜色池候选可以被认为是可行的前景颜色。

公开(公告)号：US20050256721A1

公开(公告)日：2005-11-17

申请号：US11187507

申请日：2005-07-22

申请人： Lin Liang ,  Yanyun Chen ,  Ying-Qing Xu ,  Baining Guo ,  Heung-Yeung Shum

发明人： Lin Liang ,  Yanyun Chen ,  Ying-Qing Xu ,  Baining Guo ,  Heung-Yeung Shum

IPC分类号： G06T13/60 ,  G06T13/80 ,  G06T15/04 ,  H04N5/262 ,  G10L11/00

CPC分类号： G06T13/60 ,  G06T13/80 ,  G06T15/04 ,  G06T2210/24 ,  H04N5/262

摘要： A system and process for adding a photorealistic rendering of a body of water to a virtual 3D scene or image and creating a video therefrom having interactive water effects. A region of water is added to an image by adding an area depicting the original scene as it would appear if reflected by still body of water. Then, the appearance of the added water region is distorted over a series of image frames in such a way as to simulate how the reflected scene would look if the surface of the water were in motion. The water can have dynamic waves and the user can interact with the water in numbers of ways, including generating ripples on the water surface and creating rain. In addition, these effects can be achieved at full screen resolution with the use of the latest graphics hardware by employing a texture shifting technique.

摘要翻译： 一种用于向虚拟3D场景或图像添加水体的真实感渲染并从其创建具有交互式水效果的视频的系统和过程。 通过添加描绘原始场景的区域，如水面反映的那样，将会显示水域。 然后，增加的水域的外观在一系列图像帧上变形，以模拟如果水的表面运动，反射场景将如何看起来。 水可以具有动态波，用户可以以多种方式与水相互作用，包括在水面上产生波纹并产生雨水。 此外，通过采用纹理移位技术，通过使用最新的图形硬件，可以在全屏幕分辨率下实现这些效果。

公开(公告)号：US20050226502A1

公开(公告)日：2005-10-13

申请号：US10814851

申请日：2004-03-31

申请人： Michael Cohen ,  Ying-Qing Xu ,  Heung-Yeung Shum ,  Jue Wang

发明人： Michael Cohen ,  Ying-Qing Xu ,  Heung-Yeung Shum ,  Jue Wang

IPC分类号： G06K9/00 ,  G06K9/34 ,  H04N5/262

CPC分类号： G11B27/034 ,  G06K9/00711 ,  G06T15/02 ,  H04N5/262

摘要： The techniques and mechanisms described herein are directed to a system for stylizing video, such as interactively transforming video to a cartoon-like style. Briefly stated, the techniques include determining a set of volumetric objects within a video, each volumetric object being a segment. Mean shift video segmentation may be used for this step. With that segmentation information, the technique further includes indicating on a limited number of keyframes of the video how segments should be merged into a semantic region. Finally, a contiguous volume is created by interpolating between keyframes by a mean shift constrained interpolation technique to propagate the semantic regions between keyframes.

摘要翻译： 这里描述的技术和机制针对用于对视频进行风格化的系统，诸如将视频交互地变换成卡通样式。 简而言之，技术包括确定视频内的一组体积对象，每个体积对象是一段。 平均移位视频分割可用于该步骤。 利用该分割信息，该技术还包括在片段的有限数量的关键帧上指示片段如何被合并到语义区域中。 最后，通过平均偏移约束插值技术在关键帧之间进行内插以在关键帧之间传播语义区域来创建连续体积。

公开(公告)号：US20050212821A1

公开(公告)日：2005-09-29

申请号：US10812754

申请日：2004-03-29

申请人： Ying-Qing Xu ,  Heung-Yeung Shum ,  Michael Cohen ,  Lin Liang ,  Hua Zhong

发明人： Ying-Qing Xu ,  Heung-Yeung Shum ,  Michael Cohen ,  Lin Liang ,  Hua Zhong

IPC分类号： G09G5/00

CPC分类号： G06T11/00

摘要： Caricature exaggeration systems, engines, and methods create a drawing of a facial image, compare relationships among facial features in the drawing to corresponding relationships in facial images and corresponding caricatures in a database, and automatically exaggerate at least one relationship among facial features in the drawing based on the facial images and the corresponding caricatures in the database.

摘要翻译： 漫画夸张系统，引擎和方法创建面部图像的图形，比较绘图中的面部特征与面部图像中的对应关系和数据库中相应漫画的关系，并自动夸大图中面部特征之间的至少一个关系 基于面部图像和数据库中的相应漫画。

公开(公告)号：US20050115285A1

公开(公告)日：2005-06-02

申请号：US10995986

申请日：2004-11-20

申请人： Ying-Qing Xu ,  Baining Guo ,  Hua Zhong ,  Heung-Yeung Shum

发明人： Ying-Qing Xu ,  Baining Guo ,  Hua Zhong ,  Heung-Yeung Shum

IPC分类号： D04B7/04 ,  D04B37/00 ,  G06F17/50 ,  G06G7/48

CPC分类号： D04B37/00

摘要： Knitwear modeling is disclosed. A macrostructure correponding to a three-dimensional object is generated, based on a stitch pattern and optionally a color pattern. Yarn microstructure is generated and applied to the macrostructure to yield a knitwear model. The stitch positions of the macrostructure can be perturbed to achieve stitch position irregularities. The fluffiness of the yarn microstructure can be controlled. In an alternative embodiment, a two-dimensional knitwear texture is generated, which can then be mapped to a three-dimensional object to yield a knitwear model.

公开(公告)号：US20050012741A1

公开(公告)日：2005-01-20

申请号：US10622630

申请日：2003-07-18

申请人： Yanyun Chen ,  Baining Guo ,  Ying-Qing Xu ,  Heung-Yeung Shum

发明人： Yanyun Chen ,  Baining Guo ,  Ying-Qing Xu ,  Heung-Yeung Shum

IPC分类号： G06T13/60 ,  G06T15/00

CPC分类号： G06T15/00 ,  G06T13/60

摘要： The present invention provides a computer implemented method for placing feathers on a surface. The method includes providing a surface having a plurality of vertices and establishing a growing direction for each of the plurality of vertices on the surface. Feathers are placed on the surface based on the plurality of vertices and the growing direction.

摘要翻译： 本发明提供了一种用于将羽毛放置在表面上的计算机实现的方法。 该方法包括提供具有多个顶点的表面，并为表面上的多个顶点中的每一个顶点建立生长方向。 基于多个顶点和生长方向将羽毛放置在表面上。