Imaging with Distributed Lensless Line Sensors

Abstract

Recently, mask-based camera has been proposed by replacing the lens with a coded-mask that modulates light as it reaches the sensor. Such mask-based cameras can reliably capture both direction and depth information about the scene. However, current designs of lensless camera contain only one sensor array. In contrast to that, using multiple distributed sensor arrays to image the scene may offer us many advantages, such as more flexible placing strategy and different views of the scene. In this paper, we present the distributed mask-based line cameras, in which we replace a rectangular mask-based sensor with multiple distributed thin line sensors. To retrieve the information from the measurements, we propose an algorithm that jointly estimate the depth and light intensity of the scene voxels. Simulation results are also presented for different placement strategies and widths of the sensor arrays.