PlenoGap: panorama light field viewing for HMD with focusing on gazing point

We propose a walk through imaging method for head-mounted display (HMD) named 'PlenoGap'. The method always displays a refocused image on a HMD. The refocused image is generated from a trimmed panorama light field image which is 360° cylindrical and always focused on center of HMD. In addition, we realized walkthrough experience by making some intermediate images between three panorama light field images. User can roam around small area using controller.