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建立了平行式摄像机阵列实拍立体显示系统的数学模型。根据光学成像原理和计算机视觉双目视差原理,通过一个4×4齐次矩阵描述了真实物体到虚拟物体的映射关系。该实拍模型可精确地调节拍摄和显示的参数,能有效地控制立体深度感,减小立体失真。利用该模型,定量分析了拍摄和显示参数对虚拟立体图像观看质量的影响。分析和计算结果表明,该模型具有很高的立体深度调节灵敏度,能通过调节拍摄和显示的参数,把形变系数控制在1左右,避免了纸板效应。通过理论和仿真证明了这一模型具有很好的实拍效果。
The mathematical model of parallel camera array real shot stereo display system is established. According to the principles of optical imaging and binocular disparity in computer vision, the mapping relationship of real objects to virtual objects is described by a 4 × 4 homogeneous matrix. The real shot model can accurately adjust shooting and display parameters, can effectively control the sense of three-dimensional depth, reduce the three-dimensional distortion. Using this model, the effects of shooting and display parameters on the viewing quality of virtual stereoscopic images are quantitatively analyzed. The results of analysis and calculation show that this model has high stereoscopic depth adjustment sensitivity and can control the deformation coefficient to about 1 by adjusting the shooting and display parameters, avoiding the cardboard effect. Through the theory and simulation, it is proved that the model has a good real effect.