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    System and method for image-based surface detail transfer
    61.
    发明授权
    System and method for image-based surface detail transfer 有权
    基于图像的表面细节传输的系统和方法

    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

    IPC分类号： G06K9/36 ,  G09G5/00

    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。

    Automatic detection of panoramic camera position and orientation table parameters
    62.
    发明申请
    Automatic detection of panoramic camera position and orientation table parameters 有权
    自动检测全景相机的位置和方位表参数

    公开(公告)号：US20070058879A1

    公开(公告)日：2007-03-15

    申请号：US11227046

    申请日：2005-09-15

    申请人： Ross Cutler ,  Ya Chang ,  Zicheng Liu ,  Zhengyou Zhang

    发明人： Ross Cutler ,  Ya Chang ,  Zicheng Liu ,  Zhengyou Zhang

    IPC分类号： G06K9/40 ,  G06K9/36

    CPC分类号： G06T5/006 ,  G06T7/68 ,  G06T7/80 ,  G06T2200/32

    摘要： A panoramic camera is configured to automatically determine parameters of a table upon which the camera is situated as well as positional information of the camera relative to the table. In an initialization stage, table edges are detected to create an edge map. A Hough transformation-like symmetry voting operation is performed to clean up the edge map and to determine camera offset, camera orientation and camera tilt. The table is then fit to a table model to determine table parameters. In an operational stage, table edges are detected to create an edge map and the table model is fit to the edge map. The output can then be used for further panoramic image processing such as head size normalization, zooming, compensation for camera movement, etc.

    摘要翻译： 全景相机被配置为自动确定相机所在的表的参数以及相机相对于表的位置信息。 在初始化阶段，检测表边缘以创建边缘图。 执行霍夫变换对称投票操作来清理边缘图并确定相机偏移，相机方向和相机倾斜度。 然后将表适合于表模型以确定表参数。 在操作阶段，检测表边缘以创建边缘图，并且表模型适合边缘图。 然后可以将输出用于进一步的全景图像处理，例如头部尺寸归一化，变焦，相机移动补偿等。

    System and method for head size equalization in 360 degree panoramic images
    63.
    发明授权
    System and method for head size equalization in 360 degree panoramic images 有权
    用于360度全景图像的头部尺寸均衡的系统和方法

    公开(公告)号：US07184609B2

    公开(公告)日：2007-02-27

    申请号：US11106311

    申请日：2005-04-14

    申请人： Zicheng Liu ,  Ross Cutler ,  Michael Cohen ,  Zhengyou Zhang

    发明人： Zicheng Liu ,  Ross Cutler ,  Michael Cohen ,  Zhengyou Zhang

    IPC分类号： G06K9/36 ,  G09G5/00 ,  H04N7/00

    CPC分类号： G06T3/0062 ,  G06K9/00228 ,  G06T3/4038 ,  G06T5/006 ,  G06T7/30

    摘要： A real-time approximately 360 degree image correction system and a method for alleviating distortion and perception problems in images captured by omni-directional cameras. In general, the real-time panoramic image correction method generates a warp table from pixel coordinates of a panoramic image and applies the warp table to the panoramic image to create a corrected panoramic image. The corrections are performed using a parametric class of warping functions that include Spatially Varying Uniform (SVU) scaling functions. The SVU scaling functions and scaling factors are used to perform vertical scaling and horizontal scaling on the panoramic image pixel coordinates. A horizontal distortion correction is performed using the SVU scaling functions at at least two different scaling factors. This processing generates a warp table that can be applied to the panoramic image to yield the corrected panoramic image. In one embodiment the warp table is concatenated with a stitching table used to create the panoramic image.

    摘要翻译： 一种实时大约360度的图像校正系统和一种减轻全方位摄像机拍摄图像失真和感知问题的方法。 通常，实时全景图像校正方法从全景图像的像素坐标生成扭曲表，并将经线表应用于全景图像，以创建校正的全景图像。 校正使用包括空间变化均匀（SVU）缩放函数的参数化的翘曲函数类来执行。 SVU缩放函数和缩放因子用于对全景图像像素坐标执行垂直缩放和水平缩放。 使用SVU缩放函数以至少两个不同的缩放因子执行水平失真校正。 该处理产生可应用于全景图像以产生经校正的全景图像的经向表。 在一个实施例中，经线台与用于创建全景图像的缝合台连接。

    System and method for image-based surface detail transfer
    68.
    发明申请
    System and method for image-based surface detail transfer 有权
    基于图像的表面细节传输的系统和方法

    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

    IPC分类号： G06T11/00 ,  G06T15/20 ,  G06K9/00

    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。