Refocusing images captured from a stereoscopic camera

Chia Lun Ku, Yu-Shuen Wang, Chia Sheng Chang, Hung Kuo Chu, Chih Yuan Yao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Traditional photography projects a 3D scene to a 2D image without recording the depth of each local region, which prevents users from changing the focus plane of a photograph once it has been taken. To tackle this problem, Ng et al. [2005] presented light-field cameras that record all focus planes of a scene and synthesized the refocused image using ray tracing. Nevertheless, the captured photographs are of low resolution because the image sensor is divided into subcells. Levin et al. [2007] embedded a coded aperture on the camera lens and recover depth information from blur patterns in a single image. However, the coded aperture blocks around 50% of light. Their system requires longer exposition time when taking pictures. Liang et al. [2008] also embedded a coded aperture on the camera lens to capture the scene but with multiple exposures. It produces high quality depth maps yet is not suitable to hand-held devices. Recently, Microsoft Kinect directly estimates the depth information using infrared light, which works only in a indoor environment.

Original languageEnglish
Title of host publicationACM SIGGRAPH 2013 Posters, SIGGRAPH 2013
DOIs
StatePublished - 21 Aug 2013
EventACM Special Interest Group on Computer Graphics and Interactive Techniques Conference, SIGGRAPH 2013 - Anaheim, CA, United States
Duration: 21 Jul 201325 Jul 2013

Publication series

NameACM SIGGRAPH 2013 Posters, SIGGRAPH 2013

Conference

ConferenceACM Special Interest Group on Computer Graphics and Interactive Techniques Conference, SIGGRAPH 2013
CountryUnited States
CityAnaheim, CA
Period21/07/1325/07/13

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  • Cite this

    Ku, C. L., Wang, Y-S., Chang, C. S., Chu, H. K., & Yao, C. Y. (2013). Refocusing images captured from a stereoscopic camera. In ACM SIGGRAPH 2013 Posters, SIGGRAPH 2013 [31] (ACM SIGGRAPH 2013 Posters, SIGGRAPH 2013). https://doi.org/10.1145/2503385.2503419