专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

71. 发明授权

US07420590B2 Video matting using camera arrays 失效
标题翻译：使用相机阵列的视频消光
公开(公告)号：US07420590B2
公开(公告)日：2008-09-02
申请号：US11388499
申请日：2006-03-24
申请人： Wojciech Matusik , Shmuel Avidan
发明人： Wojciech Matusik , Shmuel Avidan
IPC分类号： H04N7/18
CPC分类号： H04N5/272 , H04N5/2226
摘要： A method and system for determining an alpha matte for a video is presented. A set of videos is acquired by an array of cameras. A centrally located camera in the array is designated as a reference camera and acquires a reference video. A foreground depth plane is selected from the set of videos. A trimap is determined from variances of pixel intensities in each image. Variances of the intensities of pixels labeled as background and pixels labeled as foreground are extrapolated to the pixels labeled as unknown in the trimap. Means of the intensities of the pixels labeled as background are extrapolated to the pixels labeled as unknown to determine an alpha matte for the reference video.
摘要翻译：提出了一种用于确定视频的Alpha哑光的方法和系统。一组相机获得一组视频。将阵列中心位置的相机指定为参考相机并获取参考视频。从视频集中选择前景深度平面。由每个图像中的像素强度的方差确定微分。标记为背景的像素的强度和标记为前景的像素的差异被外推到在trimap中标记为未知的像素。标记为背景的像素的强度的方式被外推到标记为未知的像素，以确定参考视频的α无光泽。

72. 发明申请

US20070247553A1 Polarization difference matting using a screen configured to reflect polarized light 失效
标题翻译：使用配置为反射偏振光的屏幕的极化差异消光
公开(公告)号：US20070247553A1
公开(公告)日：2007-10-25
申请号：US11407158
申请日：2006-04-19
申请人： Wojciech Matusik
发明人： Wojciech Matusik
IPC分类号： H04N9/74
CPC分类号： H04N9/74 , H04N5/272 , H04N9/75
摘要： A method for extracting an alpha matte from images of a scene illuminated by unpolarized light is presented. A first pair of images is acquired with a foreground object placed in front of a background producing polarized light. One image of the first pair of images measures vertically polarized light of the scene, and a second image of the first pair of images measures horizontally polarized light of the scene. A second pair of images is acquired of the background producing the polarized light. One image of the second pair of images measures vertically polarized light of the background, and a second image of the second pair of images measures the horizontally polarized light of the background. The first and second pairs of images arte combined to generate an alpha matte and an alpha multiplied foreground.
摘要翻译：提出了一种从非偏振光照射的场景的图像中提取α无光泽的方法。获取第一对图像，其中放置在产生偏振光的背景之前的前景物体。第一对图像的一个图像测量场景的垂直偏振光，并且第一对图像的第二图像测量场景的水平偏振光。获得产生偏振光的背景的第二对图像。第二对图像的一个图像测量背景的垂直偏振光，并且第二对图像的第二图像测量背景的水平偏振光。第一和第二对图像组合以生成α无光泽和alpha倍数的前景。

73. 发明申请

US20070070226A1 Matting using camera arrays 失效
标题翻译：使用相机阵列进行扫描
公开(公告)号：US20070070226A1
公开(公告)日：2007-03-29
申请号：US11238741
申请日：2005-09-29
申请人： Wojciech Matusik , Shmuel Avidan
发明人： Wojciech Matusik , Shmuel Avidan
IPC分类号： H04N9/04
CPC分类号： H04N5/272 , H04N5/2226
摘要： A method extracts an alpha matte from images acquired of a scene by cameras. A depth plane is selected for a foreground in the scene. A trimap is determined from a set of images acquired of the scene. An epipolar plane image is constructed from the set of images and the trimap, the epipolar plane image including scan lines. Variances of intensities are measured along the scan lines in the epipolar image, and an alpha matte is extracted according to the variances.
摘要翻译：一种方法是从相机拍摄的场景中提取出一个阿尔法哑光。为场景中的前景选择深度平面。从获取的场景的一组图像确定微分。由该组图像和微分子构成对极平面图像，包括扫描线的对极平面图像。沿着对极图像中的扫描线测量强度的差异，并且根据方差提取α哑光。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式