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1. 发明申请

US20140125663A1 3D MODEL SHAPE ANALYSIS METHOD BASED ON PERCEPTION INFORMATION 审中-公开
标题翻译：基于情感信息的3D模型形状分析方法
公开(公告)号：US20140125663A1
公开(公告)日：2014-05-08
申请号：US13988321
申请日：2010-12-03
申请人： Xiaopeng Zhang , Xiaojuan Ning , Er Li , Yinghui Wang , Weiliang Meng
发明人： Xiaopeng Zhang , Xiaojuan Ning , Er Li , Yinghui Wang , Weiliang Meng
IPC分类号： G06T17/00
CPC分类号： G06T17/00 , G06K9/00214 , G06K9/44 , G06K9/4638 , G06K9/469 , G06T7/13 , G06T7/155 , G06T15/10 , G06T2207/20044 , G06T2207/30172
摘要： A method for analyzing a shape of a 3D model based on perceptive information comprises: decomposing the shape of the 3D model to generate decomposition results; and extracting a skeleton from the decomposition results. This invention can be applied to shape decomposition of objects having different shapes. The 3D models can be regular or with noise, containing either multiple annular structures or no annular structure. The decomposition method of this invention is not sensitive to noise, and the segmentation speed is high and accurate. The segmentation result of the invention can be widely applied to different branches of computer graphics and computer vision, such as computer animation, modeling, shape analysis, shape classification, object identification, etc. The skeleton extracted from the decomposition result and the following shape semantic description diagram can he applied to 3D model retrieval, model semantic analysis and so on.
摘要翻译：基于感知信息分析3D模型的形状的方法包括：分解3D模型的形状以生成分解结果; 并从分解结果中提取骨架。本发明可以应用于具有不同形状的物体的形状分解。 3D模型可以是规则的或具有噪声，包含多个环形结构或无环形结构。本发明的分解方法对噪声不敏感，分割速度高，准确。本发明的分割结果可广泛应用于计算机图形学和计算机视觉的不同分支，如计算机动画，建模，形状分析，形状分类，对象识别等。从分解结果提取的骨架和以下形状语义描述图可以应用于3D模型检索，模型语义分析等。

2. 发明申请

US20130265304A1 3D MESH MODEL AND METHOD FOR CREATING THE 3D MESH MODEL 审中-公开
标题翻译： 3D MESH模型和创建3D网格模型的方法
公开(公告)号：US20130265304A1
公开(公告)日：2013-10-10
申请号：US13996469
申请日：2010-12-23
申请人： Kangying Cai , Zhibo Chen , Weiliang Meng , Jun Teng
发明人： Kangying Cai , Zhibo Chen , Weiliang Meng , Jun Teng
IPC分类号： G06T17/10
CPC分类号： G06T17/10 , G06T17/005 , G06T17/20 , G06T19/00
摘要： For improving the compression efficiency of 3D model processing, easier discovering of repetitive patterns is required. The invention enables simplified and improved compression of 3D models by using a pattern-instance record table, which provides the pattern-instance relationship for all instances of repetitive patterns within a 3D object. A 3D mesh model comprises data of a first reference 3D mesh model, an electronic pattern-instance record table comprising first and second instance data, wherein the first instance data points to the first reference 3D mesh model and the second instance data points to the first or a further reference 3D mesh model, and an instance record for third instance data of at least one secondary 3D mesh model instance, wherein the third instance data comprise said first and second instance data or references to said first and second instance data.
摘要翻译：为了提高3D模型处理的压缩效率，需要更轻松地发现重复模式。本发明通过使用模式实例记录表来简化和改进3D模型的压缩，该模式实例记录表为3D对象内的重复模式的所有实例提供了模式 - 实例关系。 3D网格模型包括第一参考3D网格模型的数据，包括第一和第二背景数据的电子模式实例记录表，其中所述第一背景数据指向所述第一参考3D网格模型，并且所述第二背景数据指向所述第一背景数据或另外的参考3D网格模型，以及用于至少一个次要3D网格模型实例的第三实例数据的实例记录，其中所述第三背景数据包括所述第一和第二实例数据或对所述第一和第二实例数据的引用。

3. 发明授权

US09773343B2 Method for real-time and realistic rendering of complex scenes on internet 有权
公开(公告)号：US09773343B2
公开(公告)日：2017-09-26
申请号：US13884923
申请日：2010-12-24
申请人： Xiaopeng Zhang , Guanbo Bao , Hongjun Li , Weiliang Meng
发明人： Xiaopeng Zhang , Guanbo Bao , Hongjun Li , Weiliang Meng
IPC分类号： G06T15/60 , G06T15/04 , G06T15/10 , G06T15/50 , G06T19/20
CPC分类号： G06T15/60 , G06T15/04 , G06T15/10 , G06T15/503 , G06T19/20 , G06T2200/12 , G06T2200/16 , G06T2210/36 , G06T2215/12
摘要： A method for realistic and real-time rendering of complex scene in internet environment, comprising: generating sequences of scene-object-multi-resolution models, a scene configuration file, textures and material files, and a scene data list file; compressing the sequences of scene-object-multi-resolution models, the scene configuration file, the textures and material files, and the scene data list file and uploading the compressed files to a server; downloading, at a client terminal, the scene-object-multi-resolution models, the scene configuration file, the texture and material file, and the scene data list file in ascending order of resolution and rendering the scene simultaneously; dividing, in rendering the scene, a frustum in parallel into a plurality of partitions, generating a shadow map for each frustum, filtering the shadow maps to obtain an anti-aliasing shadowing effect; and the shadow map closest to a viewpoint is updated on a frame-by-frame basis and updating frequency decreases for the shadow maps distant from the viewpoint, wherein the shadow map closest to the viewpoint has the largest size, and the size of the shadow map decreases for the shadow maps distant from the viewpoint.

4. 发明申请

US20150035830A1 METHOD FOR REAL-TIME AND REALISTIC RENDERING OF COMPLEX SCENES ON INTERNET 有权
标题翻译：互联网上复杂场景的实时和现实渲染方法
公开(公告)号：US20150035830A1
公开(公告)日：2015-02-05
申请号：US13884923
申请日：2010-12-24
申请人： Xiaopeng Zhang , Guanbo Bao , Hongjun Li , Weiliang Meng
发明人： Xiaopeng Zhang , Guanbo Bao , Hongjun Li , Weiliang Meng
IPC分类号： G06T15/60 , G06T19/20 , G06T15/10 , G06T15/04 , G06T15/50
CPC分类号： G06T15/60 , G06T15/04 , G06T15/10 , G06T15/503 , G06T19/20 , G06T2200/12 , G06T2200/16 , G06T2210/36 , G06T2215/12
摘要： A method for realistic and real-time rendering of complex scene in internet environment, comprising: generating sequences of scene-object-multi-resolution models, a scene configuration file, textures and material files, and a scene data list file; compressing the sequences of scene-object-multi-resolution models, the scene configuration file, the textures and material files, and the scene data list file and uploading the compressed files to a server; downloading, at a client terminal, he scene-object-multi-resolution models, the scene configuration file, the texture and material file, and the scene data list file in ascending order of resolution and rendering the scene simultaneously; dividing, in rendering the scene, a frustum in parallel into a plurality of partitions, generating a shadow map for each frustum, filtering the shadow maps to obtain an anti-aliasing shadowing effect; and the shadow map closest to a viewpoint is updated on a frame-by-frame basis and updating frequency decreases for the shadow maps distant from the viewpoint, wherein the shadow map closest to the viewpoint has the largest size, and the size of the shadow map decreases for the shadow maps distant from the viewpoint.
摘要翻译：一种用于在互联网环境中逼真和实时渲染复杂场景的方法，包括：生成场景对象多分辨率模型序列，场景配置文件，纹理和素材文件以及场景数据列表文件; 压缩场景对象多分辨率模型，场景配置文件，纹理和素材文件以及场景数据列表文件的序列，并将压缩文件上传到服务器; 在客户端终端，以分辨率升序顺序下载场景对象多分辨率模型，场景配置文件，纹理和素材文件以及场景数据列表文件，同时呈现场景; 在渲染场景时，将平行截面平行分割为多个分区，为每个平截头体生成阴影贴图，过滤阴影贴图以获得抗锯齿效果; 并且最接近视点的阴影贴图在逐帧的基础上更新，并且对于远离视点的阴影贴图的更新频率降低，其中最靠近视点的阴影贴图具有最大的尺寸，并且阴影的大小影像距离观点远的地图减少。

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