基于均匀映射的立体影像柱面深度感知分析

发布时间：2018-04-23 11:50

本文选题：立体成像 + 深度感知　；参考：《计算机应用与软件》2013年01期

【摘要】：双目立体影像以平面作为零视差表面,采用两台透视相机生成左右眼图像。展览展示应用通常将上述方法生成的立体影像沿长宽两个方向均匀映射到柱面屏幕,使观察者对立体影像的深度感知产生变形。描述柱面条件下立体影像生成、显示和感知过程的几何分析模型,利用该模型对均匀映射下柱面中心的立体影像深度感知进行分析。理论模型的分析结果表明,均匀映射方法会造成柱面中心深度感知的非线性放大,引起深度平面弯曲等现象,影响观察者对场景的认知。数据实验结果表明,均匀映射条件下经验法则限定的深度范围仍旧适用;根据模型计算的安全深度区间感知映射结果,内容生成者可进一步减小成像时的最小深度边界,获得更加突出屏幕的立体视觉效果。
[Abstract]:The plane is used as the zero parallax surface in the binocular stereoscopic image and the left and right eye images are generated by two perspective cameras. The application of exhibition and display usually maps the stereo image generated by the above method along the direction of length and width to the cylindrical screen uniformly, which makes the observer's depth perception of the stereo image deform. A geometric analysis model describing the generation, display and perception process of stereoscopic images under cylindrical conditions is presented. The depth perception of cylindrical center images under uniform mapping is analyzed by using this model. The analytical results of the theoretical model show that the uniform mapping method can cause nonlinear amplification of the depth perception of the cylindrical center and cause the depth plane bending which will affect the observer's perception of the scene. The experimental results show that the depth range defined by the rule of thumb is still applicable under uniform mapping conditions, and that the minimum depth boundary can be further reduced by the content generator according to the results of the safe depth interval perception mapping calculated by the model. Get the stereoscopic effect of more prominent screen.
【作者单位】：复旦大学计算机科学技术学院;
【基金】：国家自然科学基金项目(60803064)
【分类号】：TP391.41

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