2015/05/04 by Loïs Mignard-Debise, Lois Mignard-Debise, Mignard-Debise, Lois +2 · 1 citation
Computer Science · Engineering · Physics and Astronomy · #Advanced Optical Imaging Technologies #Computer Vision and Pattern Recognition (cs.CV) #Digital Holography and Microscopy #FOS: Computer and information sciences #Graphics (cs.GR) #Image Processing Techniques and Applications #Near-Field Optical Microscopy #cs.CV #cs.GR
paper · pdf · doi:10.48550/arxiv.1508.03590
openalex publication_date 2015/05/04 · arxiv created 2015/12/07 · arxiv updated 2015/12/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We explore the use of inexpensive consumer light- field camera technology for the purpose of light-field mi- croscopy. Our experiments are based on the Lytro (first gen- eration) camera. Unfortunately, the optical systems of the Lytro and those of microscopes are not compatible, lead- ing to a loss of light-field information due to angular and spatial vignetting when directly recording microscopic pic- tures. We therefore consider an adaptation of the Lytro op- tical system. We demonstrate that using the Lytro directly as an oc- ular replacement, leads to unacceptable spatial vignetting. However, we also found a setting that allows the use of the Lytro camera in a virtual imaging mode which prevents the information loss to a large extent. We analyze the new vir- tual imaging mode and use it in two different setups for im- plementing light-field microscopy using a Lytro camera. As a practical result, we show that the camera can be used for low magnification work, as e.g. common in quality control, surface characterization, etc. We achieve a maximum spa- tial resolution of about 6.25μm, albeit at a limited SNR for the side views.