摘要
为避免光场渲染的结果因采样率不足而发生重影,提出了多深度层复杂场景的无重影光场渲染条件,证明了可由场景几何及摄像机角分辨率确定,不发生重影的最大摄像机间隔及最优深度,并在此基础上推导了两者间的关系。计算了不同摄像机间隔下的合成视图与标准视图间的峰值信噪比(PSNR),并以此衡量渲染质量。实验数据及人眼对重影发生与否的主观判定结论与本文的理论分析基本一致。
The ghost-free condition is proposed to avoid the ghosting effect caused by the insufficient sampling rate when rendering the multi-layer scenes by the light-field method.It is shown that the optimal constant depth and the maximum camera interval can be determined by the scene geometry and the angular resolution of the camera.Also,a quantitative experiment is used to verify the presented condition.The peak signal-to-noise ratio（PSNR） between the rendered views and the standard views is calculated to show the rendering quality at different camera intervals.The experimental data are basically in accord with the subjective observation in this experiment and the results sufficiently support the theoretical analysis.
出处
《光电子．激光》
EI
CAS
CSCD
北大核心
2010年第2期274-278,共5页
Journal of Optoelectronics·Laser
基金
国家自然科学基金资助项目(60832003,60772124)
上海大学研究生创新基金资助项目(SHUCX091022)
关键词
光场渲染
摄像机间隔
多深度层场景
重影现象
light field rendering
camera interval
multi-layer scene
ghosting effect
