Real-Time FPGA Implementation of Linear Blending Vision Reconstruction Algorithm Using a Spherical Light Field Camera
Real-Time FPGA Implementation of Linear Blending Vision Reconstruction Algorithm Using a Spherical Light Field Camera
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使用球形光场相机实时 FPGA 实现线性混合视觉重建算法
DOI：
10.1109/sips.2012.49
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
Y. Leblebici
中科院分区：
文献类型：
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作者：
Hossein Afshari;Abdulkadir Akin;Vladan Popovic;A. Schmid;Y. Leblebici
一种定制的球面光场相机，用作多折射系统，其中成像器分布在球面几何体上，每个球面都有自己对周围环境和不同焦面的视觉。球面光场相机也是一种全方位相机，它围绕中心记录多个方向的光信息。提出了一种新的线性混合技术，用于对位于该摄像机球面几何内部的虚拟观察者进行视觉重建。与普通拼接技术相比，该混合技术提高了重建视觉的输出质量。针对球面光场相机重建视觉的矩形显示，提出了一种新的像素网格化方法。当映射到全景系统的球面几何体上时，这种栅格技术可以保持对象的正确大小。给出了基于现场可编程门阵列的硬件结构、线性混合算法的实时实现和球面光场相机新的像素网格化方案，并给出了成像结果。
A custom spherical light-field camera used as a polydioptricsystem where imagers are distributed over a spherical geometry, each having its own vision of the surrounding and distinct focal plane. The spherical light-field camera is also an omnidirectional camera which records light information fro many direction around its center. A novel linear blending technique is presented for vision reconstruction of a virtual observer located inside the spherical geometry of this camera. This blending technique improves the output quality of the reconstructed vision with respect to the ordinary stitching technique. A novel pixel gridding scheme is presented for rectangular displaying of the reconstructed vision induced from the spherical light field camera. This gridding technique preserve the correct size of objects when mapped on the spherical geometry of the Panoptic system. A hardware architecture based on FPGAs with the real-time implementation of the linear blending algorithm and the new pixel gridding scheme of the spherical light-field camera are presented along with imaging results.