Generating high-resolution image and depth map using a camera array with mixed focal lengths
Journal
IEEE Transaction on Computer Imaging
Journal Volume
5
Journal Issue
1
Pages
656-664
Date Issued
2019
Author(s)
Abstract
Producing high-resolution images and depth maps of a scene is critical to many applications. Although some imaging systems today are equipped with multiple cameras, the output image resolution is usually only a small fraction of the total number of sensor pixels. To significantly increase the output pixel ratio, we propose an imaging system that consists of an array of telescopic cameras and a wide-angle camera. By minimizing the overlap between the telescopic cameras and maximizing the overlap between the low-resolution wide-angle camera and the telescopic cameras, a camera system with nonparallel optical axes is created. The heterogeneous images of different resolutions are fused into a high-resolution wide-angle image, and its corresponding depth map is generated by pairwise heterogeneous matching. The performance of the proposed imaging system is evaluated using both synthetic and real data.
Type
journal article