基于深度图像和半像素的虚拟视点绘制  

Virtual view rendering based on depth image and half pixel precision

作　　者：赵岩[1] 汪敬媛 陈贺新[1] 刘静[1] 王珂玮[1] 

机构地区：[1]吉林大学通信工程学院,长春130012

出　　处：《吉林大学学报（工学版）》2013年第S1期256-259,共4页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(60872072;60832002);吉林大学杰出青年基金项目(200905018)

摘　　要：为提高虚拟视点图像的绘制精度,提出了一种基于深度图像和半像素的虚拟视点绘制方法。该方法首先对参考图像进行预处理,包括图像的半像素处理和亮度校正,然后利用正向3D图像映射获得虚拟视点的图像和深度信息,再利用逆向3D图像映射填补由深度信息不准确等因素产生的部分空洞,并根据深度信息擦除背景伪影,最后根据空洞类型的不同采用不同的方法进行空洞填补。实验结果证明,利用该方法可以绘制出令人满意的虚拟视点图像。In order to improve the rendering accuracy,an algorithm based on depth image and half pixel precision was proposed.Firstly the reference images were preprocessed,including the half-pixel processing and brightness correction,then forward 3D image warping is utilized to generate the image and depth map of the virtual view,inverse 3D image warping was used to fill part of holes caused by some factors,such as inaccurate depth information,and then ghosting was erased according to depth comparison,finally different methods was used to fill the remaining holes according to the types of the holes.The experimental results show that the proposed method can obtain satisfactory rendering results.

关 键 词：基于深度图像的绘制 半像素 3D图像映射 空洞填补 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]