퍼지제어기를 이용한 원거리 입체카메라용 수평리그의 축간거리 결정에 관한 연구

Abstract

A Study on the Interaxial Distance of Horizontal Rig for the Long Distance Stereoscopic Camera using a Fuzzy Logic Controller

Hyun Jo Kim

Department of Control & Instrumentation Engineering Graduate School of Pukyong National University

Abstract

There are three methods which visualize stereoscopic image. One is CG used a computer, another is converting existing 2D to 3D, and the other is a live-action used two cameras. CG can make it possible to visualize images like reality with the development of computer graphic technology, but it has demerits that expensive cost have gone into it. In converting technology, it is easy to visualize images by programs. However, It is unnatural and has many artifacts when it visualizes 3D because it is not filmed for 3D. In a live-action, the quality of images is dependent on photographer's skill as possible circumstance is very limited and obvious guidelines don't exist. Moreover, most of the live-action is filmed within 30m and limited to use just a video clip. In this thesis, the live-action is filmed over 40m. A research which decides Interaxial distance and the focal distance of lens depending on the distance of subject to make images that viewers don't feel fatigue is conducted. A horizontal rig whose total length is 700mm is made and imaging photographing is conducted to design Fuzzy Logic Controller with the horizontal rig. Depth range of the collected images is analyzed by a computer and the images within stable viewing area are selected. Based on them, a controller which infers Interaxial Distance that has a constant depth to any distance and the focal distance of lens is designed. The effectiveness of controller is proven by comparing Interaxial distance which is simulated by the designed controller and the focal distance of lens with real imaging photographing.