title: The Light Field Attachment: Turning a DSLR into a Light Field Camera Using a Low Budget Camera Ring.
abstract: We propose a concept for a lens attachment that turns a standard DSLR camera and lens into a light field camera. The attachment consists of eight low-resolution, low-quality side cameras arranged around the central high-quality SLR lens. Unlike most existing light field camera architectures, this design provides a high-quality 2D image mode, while simultaneously enabling a new high-quality light field mode with a large camera baseline but little added weight, cost, or bulk compared with the base DSLR camera. From an algorithmic point of view, the high-quality light field mode is made possible by a new light field super-resolution method that first improves the spatial resolution and image quality of the side cameras and then interpolates additional views as needed. At the heart of this process is a super-resolution method that we call iterative Patch- And Depth-based Synthesis (iPADS), which combines patch-based and depth-based synthesis in a novel fashion. Experimental results obtained for both real captured data and synthetic data confirm that our method achieves substantial improvements in super-resolution for side-view images as well as the high-quality and view-coherent rendering of dense and high-resolution light fields.
authors.forename: Yuwang
authors.initials: Y
authors.lastname: Wang
authors.forename: Yebin
authors.initials: Y
authors.lastname: Liu
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Heidrich
authors.forename: Qionghai
authors.initials: Q
authors.lastname: Dai