Image Blending in a High Frame Rate FPGA-based Multi-Camera System
Image Blending in a High Frame Rate FPGA-based Multi-Camera System
复制标题
基于 FPGA 的高帧率多摄像头系统中的图像混合
DOI：
10.1007/s11265-013-0858-8
复制
发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Y. Leblebici
中科院分区：
文献类型：
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作者：
Vladan Popovic;Kerem Seyid;Abdulkadir Akin;Omer Cogal;Hossein Afshari;A. Schmid;Y. Leblebici
Panoptic是一种定制的球形光场相机，用作多屈光系统，其中成像器分布在半球形表面上，每个成像器都有自己的周围视野和不同的焦平面。球形光场相机记录来自围绕其中心的任何方向的光信息。本文修改了以前开发的最近邻和线性混合技术。提出了一种新的高斯混合和限制高斯混合技术，用于球面几何中虚拟观察者的视觉重建。这些新的融合技术相对于普通的拼接技术和简单的图像融合算法提高了重建图像的输出质量。本文还给出了开发的混合算法的比较。提出了一种基于现场可编程门阵列（FPGA）的硬件架构，使混合算法的实时实现，沿着的成像结果和资源利用率的比较。附上录制的全方位录像作为补充材料。
Panoptic is a custom spherical light field camera used as a polydioptric system where imagers are distributed over a hemispherical surface, each having its own vision of the surroundings and a distinct focal plane. The spherical light field camera records light information from any direction around its center. This paper revises previously developed Nearest Neighbor and Linear blending techniques. Novel Gaussian blending and Restricted Gaussian blending techniques for vision reconstruction of a virtual observer located inside the spherical geometry are presented. These new blending techniques improve the output quality of the reconstructed image with respect to the ordinary stitching techniques and simpler image blending algorithms. A comparison of the developed blending algorithms is also given in this paper. A hardware architecture based on Field Programmable Gate Arrays (FPGA) enabling the real-time implementation of the blending algorithms is presented, along with the imaging results and resource utilization comparison. A recorded omnidirectional video is attached as a supplementary material.