公开(公告)号：US20160337640A1

公开(公告)日：2016-11-17

申请号：US15012442

申请日：2016-02-01

Applicant: BEIJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS

Inventor： Huadong MA ,  Liang LIU ,  Aner LIU ,  Dawei LU

IPC: H04N17/00 ,  G06T7/60 ,  G06T7/00 ,  H04N13/02

CPC classification number: H04N13/296 ,  G06T7/13 ,  G06T7/60 ,  H04N13/275

Abstract: A method and a system for determining parameters of an off-axis virtual camera provided by embodiments of present invention can extract a scene depth map for each video frame from a depth buffer, determine the minimum value of edge depth values of the scene depth map as the closest scene edge depth of each video frame, determine the depth of a first object as the depth of an object of interest of each video frame, use the smaller value between the closest scene edge depth and the depth of an object of interest as the zero-parallax value and obtain a zero-parallax value sequence constituted by the zero-parallax value of each video frame. The present invention realizes automatic determination of the zero parallax of each video frame rather than manual setting thereof, and thus the determination will not be affected by factors such as lack of experience, and the amount of work for an technician is also reduced. Meanwhile, the present invention makes the zero parallax as close as possible to an object of interest without incurring the window occlusion problem, which can improve the stereo perception as much as possible while ensuring the comfortability, and can ensure the using effect of the determined zero parallax.

Abstract translation: 本发明实施例提供的用于确定离轴虚拟摄像机的参数的方法和系统可以从深度缓冲器中提取每个视频帧的场景深度图，将场景深度图的边缘深度值的最小值确定为 每个视频帧的最接近的场景边缘深度，确定第一个对象的深度作为每个视频帧的感兴趣对象的深度，使用最近的场景边缘深度和感兴趣对象的深度之间的较小值作为 零视差值，并获得由每个视频帧的零视差值构成的零视差值序列。 本发明实现了每个视频帧的零视差的自动确定，而不是其手动设置，因此该决定不会受到诸如经验不足等因素的影响，并且技术人员的工作量也减少。 同时，本发明使零视差尽可能接近感兴趣的对象，而不会产生窗口遮挡问题，这可以在确保舒适性的同时尽可能地改善立体感觉，并且可以确保确定的零的使用效果 视差。