基于立体图像源的立体相机拍摄质量客观评价方法研究

项目名称： 基于立体图像源的立体相机拍摄质量客观评价方法研究

项目编号： No.61471260

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 无线电电子学、电信技术

项目作者： 杨嘉琛

作者单位： 天津大学

项目金额： 85万元

中文摘要： 近年来，随着立体技术不断发展，立体拍摄技术已成为信息领域研究热点，民众拍摄立体影像需求不断增长。然而，与立体拍摄技术蓬勃发展不匹配的是国内外尚未有完善的立体相机拍摄质量评价方法，立体拍摄没有指导标准。因此，开展立体相机拍摄质量评价已成为亟待解决的问题。本项目拟首先从立体图像源出发，充分考虑畸变，基于精确坐标转化关系模型，采用概率估计法，实现立体相机拍摄参数的精确提取；其次，基于对深度感和自然感的分析，研究平行和会聚相机理想拍摄参数模型，根据场景参数计算具有理想拍摄效果的相机参数；最后，根据实际拍摄参数和理想拍摄参数，获取深度曲面和自然感算子，建立立体相机拍摄深度感和自然感评价模型，得出深度感和自然感评价指标，形成立体相机拍摄质量客观评价方法。本项目研究成果将为立体相机拍摄质量评价提供理论基础和方法支撑，对推动立体拍摄技术的发展具有重要意义。

中文关键词： 拍摄参数；立体相机；立体拍摄；质量评价

英文摘要： In recent years, with the development of three-dimensional (3D) technology, 3D shooting technology has become a research focus in the field of the information, and people's demand of shooting 3D image is growing. But there's no widely accepted shooting quality assessment method for stereo cameras which does not match the flourish of 3D shooting technology, and 3D shooting has no guiding standard. Therefore, the research on shooting quality assessment method for stereo cameras has become an urgent problem to be solved. The project, firstly, intends to start from 3D image source, and adopts the probability estimation method to extract the shooting parameters of stereo cameras through taking full account of distortion and the accurate model of coordinate transformation relations. Secondly, based on the analysis of the depth perception and natural perception, the project investigates the ideal shooting parameter models of parallel and toed-in camera, and calculates camera parameters of ideal shooting effect based on scene parameters. Thirdly, in view of the real and ideal shooting parameters of stereo cameras, the project obtains depth surfaces and natural perception operators, then acquires the depth perception assessment index and natural perception assessment index via establishment of the depth perception assessment model and natural perception assessment model. Finally, the objective shooting quality assessment method for stereo cameras is proposed. The results of our project will provide the theoretical basis and method support for shooting quality assessment of stereo cameras, and has great significance in the development of the stereoscopic shooting techniques.

英文关键词： Shooting Parameters;Stereo Camera;Stereoscopic Shooting;Quality Assessment