Non-reference virtual view quality evaluation of MVD

The quality of virtual view based on multi-view video (MVD) plus depth format is often evaluated by PSNR or subjectively judged.However,due to synthesizing arbitrary view images,the virtual view images mostly have no reference images and are only assessed using non-reference.Virtual view images synthesized by depth estimation reference software (DERS) and view synthesis reference software (VSRS) often accompanied with blockiness and other distortions on the edge.In addition,matching level for the depth map ...     

3DV quality model based depth maps for view synthesis in FTV system

Depth maps are used for synthesis virtual view in free-viewpoint television (FTV) systems.When depth maps are derived using existing depth estimation methods,the depth distortions will cause undesirable artifacts in the synthesized views.To solve this problem,a 3D video quality model base depth maps (D-3DV) for virtual view synthesis and depth map coding in the FTV applications is proposed.First,the relationships between distortions in coded depth map and rendered view are derived.Then,a precisely 3DV quali...     

教师教育课程教学质量评价标准的构建--基于CIPP评价模式的视角

教师教育课程是教师教育质量提高的关键所在,科学合理的教师教育课程教学评价的标准是培养高水平教师的重要因素,也是教师教育教学质量持续不断提高的有效保障。目前,我国教师教育课程教学存在的诸多问题无不与教师教育课程教学评价的标准有关。在当前我国高等教育“质量工程”和教师教育课程改革的大背景下,应用CIPP评价模式评价教师教育课程教学质量,对促进学生发展、教师发展、课程改进和教学资源优化配置等具有重要的价值。