A modified method for multiple region depth mapping of stereoscopic image generation

With rapid progress of 3DTV (Three-Dimensional Television) and 3D film industry, stereoscopic technology has become an increasingly important aspect of image technology in recent years. Stereoscopic 3D (S3D) image brings enhanced 3D experience to the viewer, but also may lead to visual discomfort. However, it needs to control the perceived depth of S3D image within a certain range around the screen, and the important scene, which is focused by the audience, needs to be mapped into Zero Parallax Plane (ZPP). Recent multiple-region depth mapping method meets the requirement of the former, but cannot provide precise control to make the important scene into ZPP. In this paper, a modified multiple-region depth mapping method is proposed, that can not only allow a defined region of interest to have an improved perceived depth representation compared to other regions of the scene, but also control the important object into ZPP. Then, two depth distribution ways of the proposed method is discussed and compared, including Maximum Utilization Rate of Depth Range (MURDR) method and Equal Proportion Distribution (EPD) method. The result of simulation experiment shows that less nonlinear distortion is produced by the latter.

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