Video Completion By Motion Field Transfer
    101.
    发明申请
    Video Completion By Motion Field Transfer 有权
    视频完成通过运动场传输

    公开(公告)号:US20080112642A1

    公开(公告)日:2008-05-15

    申请号:US11559861

    申请日:2006-11-14

    Abstract: Systems and methods for video completion by motion field transfer are described. In one aspect, a spatio-temporal target patch of an input video data sequence is filled in or replaced by motion field transfer from a spatio-temporal source patch of the input video data sequence. Color is propagated to corresponding portions of the spatio-temporal target patch by treating the transferred motion information as directed edges These motion field transfer and color propagation operations result in a video completed spatio-temporal target patch. The systems and methods present the video data sequence, which now includes the video completed spatio-temporal target patch, to user for viewing.

    Abstract translation: 描述了通过运动场传输进行视频完成的系统和方法。 在一个方面,输入视频数据序列的时空目标贴片由输入视频数据序列的时空源片段填充或由运动场传输代替。 通过将转移的运动信息作为有向边缘进行处理,将颜色传播到时空目标贴片的相应部分。这些运动场转移和颜色传播操作导致视频完成的时空目标贴片。 系统和方法呈现视频数据序列,其现在包括视频完成的时空目标补丁,供用户观看。

    Interactive viewpoint video system and process
    102.
    发明授权
    Interactive viewpoint video system and process 有权
    互动观点视频系统和过程

    公开(公告)号:US07292257B2

    公开(公告)日:2007-11-06

    申请号:US10880774

    申请日:2004-06-28

    Abstract: A system and process for generating, and then rendering and displaying, an interactive viewpoint video in which a user can watch a dynamic scene while manipulating (freezing, slowing down, or reversing) time and changing the viewpoint at will. In general, the interactive viewpoint video is generated using a small number of cameras to capture multiple video streams. A multi-view 3D reconstruction and matting technique is employed to create a layered representation of the video frames that enables both efficient compression and interactive playback of the captured dynamic scene, while at the same time allowing for real-time rendering.

    Abstract translation: 一种用于生成并再现和显示交互视点视频的系统和过程,其中用户可以在操纵(冻结,减慢或反转)时间并随意改变视点的同时观看动态场景。 通常,使用少量摄像机生成交互视点视频以捕获多个视频流。 采用多视图3D重建和消隐技术来创建视频帧的分层表示,使得能够实现捕获的动态场景的高效压缩和交互式回放,同时允许实时渲染。

    Deghosting mosaics using multiperspective plane sweep

    公开(公告)号:US20060072851A1

    公开(公告)日:2006-04-06

    申请号:US11286524

    申请日:2005-11-22

    Abstract: A system and method for deghosting mosaics provides a novel multiperspective plane sweep approach for generating an image mosaic from a sequence of still images, video images, scanned photographic images, computer generated images, etc. This multiperspective plane sweep approach uses virtual camera positions to compute depth maps for columns of overlapping pixels in adjacent images. Object distortions and ghosting caused by image parallax when generating the image mosaics are then minimized by blending pixel colors, or grey values, for each computed depth to create a common composite area for each of the overlapping images. Further, the multiperspective plane sweep approach described herein is both computationally efficient, and applicable to both the case of limited overlap between the images used for creating the image mosaics, and to the case of extensive or increased image overlap.

    System and process for generating a two-layer, 3D representation of a scene
    107.
    发明授权
    System and process for generating a two-layer, 3D representation of a scene 有权
    用于生成场景的两层3D表示的系统和过程

    公开(公告)号:US07015926B2

    公开(公告)日:2006-03-21

    申请号:US10879235

    申请日:2004-06-28

    CPC classification number: G06T15/205

    Abstract: A system and process for generating a two-layer, 3D representation of a digital or digitized image from the image and a pixel disparity map of the image is presented. The two layer representation includes a main layer having pixels exhibiting background colors and background disparities associated with correspondingly located pixels of depth discontinuity areas in the image, as well as pixels exhibiting colors and disparities associated with correspondingly located pixels of the image not found in these depth discontinuity areas. The other layer is a boundary layer made up of pixels exhibiting foreground colors, foreground disparities and alpha values associated with the correspondingly located pixels of the depth discontinuity areas. The depth discontinuity areas correspond to prescribed sized areas surrounding depth discontinuities found in the image using a disparity map thereof.

    Abstract translation: 提出了一种用于从图像生成数字或数字化图像的二层3D表示和图像的像素视差图的系统和过程。 两层表示包括具有显示背景颜色的像素和与图像中的深度不连续区域的相应定位的像素相关联的背景差异的主层以及与在这些深度中未找到的图像的相应定位的像素相关联的颜色和差异的像素 不连续区域。 另一层是由与前述深度不连续区域的对应位置的像素相关联的前景色,前景差异和α值的像素构成的边界层。 深度不连续区域对应于使用其视差图在图像中发现的围绕深度不连续性的规定尺寸的区域。

    Method for simultaneously compositing a panoramic image and determining camera focal length
    110.
    发明授权
    Method for simultaneously compositing a panoramic image and determining camera focal length 失效
    同时合成全景图像和确定相机焦距的方法

    公开(公告)号:US06256058B1

    公开(公告)日:2001-07-03

    申请号:US08660704

    申请日:1996-06-06

    CPC classification number: H04N5/23238 H04N5/2624

    Abstract: In a computerized image processing system, a camera acquires a set of images of a scene while rotating the camera about an axis passing through an optical center of the camera. The images of the set overlap each other. An initial estimate of the focal length of the camera is made. The initial focal length can be any reasonable focal length. Using the initial estimate of the focal length, the set of images are composited in a memory to determine an estimated initial composited length. A next best estimate of the focal length is derived from the initial estimated composited length. The set of images are recomposed using the next best focal length estimate. This process is iterated until the absolute difference between the successive estimates of the focal length is less than a predetermined threshold to calibrate the camera. In addition, the process of compositing the set of images can use a weighted interpolation scheme to reduce the blurring effects caused by noise and digitization effects and incorrect focal length.

    Abstract translation: 在计算机化图像处理系统中,摄像机围绕通过照相机的光学中心的轴旋转摄像机时,照相机获取场景的一组图像。 集合的图像彼此重叠。 进行摄像机焦距的初始估计。 初始焦距可以是任何合理的焦距。 使用焦距的初始估计,将图像集合在存储器中以确定估计的初始合成长度。 焦距的下一个最佳估计来自初始估计的合成长度。 使用下一个最佳焦距估计重组该组图像。 迭代该过程直到焦距的连续估计之间的绝对差小于预定阈值以校准相机。 另外,合成图像集合的过程可以使用加权插值方案来减少由噪声和数字化效应引起的模糊效应和不正确的焦距。

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