Occluded object imaging based on collaborative synthetic aperture photography

Occlusion poses as a critical challenge in computer vision for a long time. Camera array based synthetic aperture photography has been regarded as a promising way to address the problem of occluded object imaging. However, the application of this technique is limited by the building cost and the immobility of the camera array system. In order to build a more practical synthetic aperture photography system, in this paper, a novel multiple moving camera based collaborative synthetic aperture photography is proposed. The main characteristics of our work include: (1) to the best of our knowledge, this is the first multiple moving camera based collaborative synthetic aperture photography system; (2) by building a sparse 3D map of the occluded scene using one camera, the information from the subsequent cameras can be incrementally utilized to estimate the warping induced by the focal plane; (3) the compatibility of different types of cameras, such as the hand-held action cameras or the quadrotor on-board cameras, shows the generality of the proposed framework. Extensive experiments have demonstrated the see-throughocclusion performance of the proposed approach in different scenarios.