Techniques for adding interactive features to videos
    13.
    发明授权
    Techniques for adding interactive features to videos 有权
    为视频添加互动功能的技术

    公开(公告)号:US09330718B2

    公开(公告)日:2016-05-03

    申请号:US14106136

    申请日:2013-12-13

    CPC classification number: G11B27/031

    Abstract: Techniques are disclosed for adding interactive features to videos to enable users to create new media using a dynamic blend of motion and still imagery. The interactive techniques can include allowing a user to change the starting time of one or more subjects in a given video frame, or only animate/play a portion of a given frame scene. The techniques may include segmenting each frame of a video to identify one or more subjects within each frame, selecting (or receiving selections of) one or more subjects within the given frame scene, tracking the selected subject(s) from frame to frame, and alpha-matting to play/animate only the selected subject(s). In some instances, segmentation, selection, and/or tracking may be improved and/or enhanced using pixel depth information (e.g., using a depth map).

    Abstract translation: 公开的技术是为视频添加互动功能,使用户能够使用运动和静态图像的动态混合来创建新媒体。 交互技术可以包括允许用户改变给定视频帧中的一个或多个被摄体的开始时间,或者只是给定帧场景的动画/播放一部分。 技术可以包括分割视频的每个帧以识别每帧内的一个或多个对象,在给定帧场景内选择(或接收选择)一个或多个对象,从帧到帧跟踪所选择的对象,以及 字母填充仅播放/动画所选主题。 在一些情况下,可以使用像素深度信息(例如,使用深度图)来改进和/或增强分割,选择和/或跟踪。

    Generating virtual reality content via light fields

    公开(公告)号:US11812009B2

    公开(公告)日:2023-11-07

    申请号:US16232612

    申请日:2018-12-26

    CPC classification number: H04N13/243 H04N13/232 H04N23/90

    Abstract: An example system for generating light field content is described herein. The system includes a receiver to receive a plurality of images and a calibrator to intrinsically calibrate a camera. The system also includes a corrector and projector undistort the images and project the undistorted images to generate undistorted rectilinear images. An extrinsic calibrator may rectify and align the undistorted rectilinear images. Finally, the system includes a view interpolator to perform intermediate view interpolation on the rectified and aligned undistorted rectilinear images.

    View interpolation for visual storytelling

    公开(公告)号:US10701282B2

    公开(公告)日:2020-06-30

    申请号:US14749483

    申请日:2015-06-24

    Abstract: A plurality of frames of a video recorded by a video camera and depth maps of the plurality of frames are stored in a data storage. One or more target video camera positions are determined. Each frame of the plurality of frames is associated with one or more of the target video camera positions. For each frame, one or more synthesized frames from the viewpoint of the one or more target camera positions associated with that frame are generated by applying a view interpolation algorithm to that frame using the color pixels of that frame and the depth map of that frame. Users can provide their input about the new camera positions and other camera parameters through multiple input modalities. The synthesized frames are concatenated to create a modified video. Other embodiments are also described and claimed.

    GUIDED SPARSE FEATURE MATCHING VIA COARSELY DEFINED DENSE MATCHES

    公开(公告)号:US20190318196A1

    公开(公告)日:2019-10-17

    申请号:US16455980

    申请日:2019-06-28

    Abstract: An example method is described herein. The method includes executing dense feature matching on an image pair that is down sampled to obtain a first set of feature correspondences for each pixel of the down sampled image pair. The method also includes calculating a neighborhood correspondence based on the first set of feature correspondences for each pixel in a first image of the image pair. Further, the method includes executing sparse feature matching on stereoscopic patch pairs from the image pair based on the neighborhood correspondence for each pixel to obtain correspondence estimates for each stereoscopic patch pair. Finally, the method includes refining the correspondence estimates for each stereoscopic patch pair to obtain a semi-dense set of feature correspondences by applying a geometric constraint to the correspondence estimates and retaining correspondences that satisfy the geometric constraint.

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