Convergence point adjustment improving visual discomfort for a zoom on a stereoscopic camera

Jong Soo Ha, Dae Woong Kim, Dong Hyun Kim

Research output: Contribution to journalArticle


In a dual lens stereoscopic camera, a convergence point determines the stereopsis effects of a video. When a user zooms an object, a convergence point is fixed since it is not coupled with a zoom function. Due to the fixed convergence point, it is possible for a zoom to cause the excessive binocular disparity resulting in visual discomfort. In this paper, to solve this problem, we build the relational model including all phenomena possible to arise and propose the adjustment methods of a convergence point by the positions of a focus, an object and a convergence point. We also evaluate the experiments measuring a binocular disparity and the subjective test to investigate the visual comfort. The results show that one of the proposed methods produced more comfortable 3D images to viewers than the others.

Original languageEnglish
Pages (from-to)633-640
Number of pages8
JournalJournal of the Optical Society of Korea
Issue number5
Publication statusPublished - Oct 2016


All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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