Convergence Point Adjustment Improving Visual Discomfort for a Zoom on a Stereoscopic Camera

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 disparityresulting in visual discomfort. In this paper, to solve this problem, we build the relational model includingall phenomena possible to arise and propose the adjustment methods of a convergence point by the positionsof a focus, an object and a convergence point. We also evaluate the experiments measuring a binoculardisparity and the subjective test to investigate the visual comfort. The results show that one of the proposedmethods produced more comfortable 3D images to viewers than the others. KCI Citation Count: 1