引入零视差缓冲的DIBR改良方法  

Improved DIBR Method with Introducing Zero-parallax Buffer

作　　者：林坚普 吕昭宏 许胜允 辛琦[1] 姚剑敏[1] 郭太良[1] 

机构地区：[1]福州大学场致发射国家地方联合工程实验室,福建福州350000 [2]冠捷显示科技(厦门)有限公司厦门创新中心,福建厦门361000

出　　处：《电视技术》2015年第5期21-25,共5页Video Engineering

基　　金：国家"863"计划项目(2012AA03A301;2013AA030601);国家自然科学基金项目(61101169;6106053);福建省自然科学基金项目(2011J01347)

摘　　要：针对图像部分像素深度值失真,导致图像变形后物体边缘失真的问题,提出了一种引入"零视差缓冲"的方法。首先,选取4幅具有不同复杂程度场景的图像,引入零视差缓冲对图像进行变形;其次采用传统图像质量评价体系(结构相似度SSIM和模糊系数K)对得到的图像进行质量评价;最后,对比传统DIBR方法和引入零视差缓冲方法得到的视点图中物体边缘的表现。实验结果表明,该方法对于变形图像的SSIM平均提高了4.66%,K平均下降了1.73%。提高了视点图中物体边缘的质量,提高了3D图像的整体质量。For the problem of fringe distortion after image warping results from the depth-map deviation of some image pixels, a method with introducing zero-parallax buffer is proposed. First, four pictures with different complexities are converted by zero-parallax buffer method. And SSIM and K image evaluation systems are used to assess the quality of pictures. Finally, the performance of image which generate from traditional method and zero-parallax method are compared. The results of experiment show that SSIM values are increased with average value of 4.66% and K values are decreased with average value of 1.73%. The quality of viewpoint images was improved.

关 键 词：DIBR 深度图 图像变形 

分 类 号：TN27[电子电信—物理电子学]