提出了一种基于双目立体相机的实时集成成像拍摄系统。不同于采用传统的摄像机阵列, 该系统采用双目相机对三维场景进行拍摄, 有效地简化了集成成像拍摄系统的结构。该系统首先利用双目相机获取三维场景的左右视差图, 然后上传到图形处理器生成三维场景的高分辨率深度图, 之后利用深度图和彩色纹理图在图形处理器中并行生成新视点视差图像, 并利用像素映射算法生成高分辨率微图像阵列, 实现实时的集成成像显示。实验中系统获取的深度图像素数目是微软Kinect2获取深度图像素数目的4.25倍, 当系统运行在1 920 pixel×1 080 pixel、9×9视点数的环境下, 可实现三维场景的实时拍摄与显示, 实验结果证明了所提系统的可行性。

A real time integral imaging pickup system was proposed using a binocular stereo camera. In the proposed system, the conventional camera array was replaced by the binocular stereo camera for three-dimensional (3D) scene pickup, which made the system simpler. In the system, left view and right view images were first captured by the binocular stereo camera, and the high-resolution depth map was calculated in the graphics processing unit. Then, the depth map and color texture image were used to generate the parallax images of new perspectives in parallax, and pixel mapping algorithm was adopted to obtain the high-resolution elemental image array for the real-time integral imaging display. In the experiment, the resolution of the calculated depth map was 4.25 times more than the depth map acquired by Microsoft Kinect2, the real-time pickup and display for 3D scene can be achieved in case the resolution of elemental image array was 1 920 pixel×1 080 pixel, and sub-images was 9×9. The experiment results demonstrate the effectiveness of the proposed system.