The Application of Computer Vision Techniques for Image-based 3D Reconstruction on iOS Platform

• Main Authors: Liu, Kuang-Te, 劉廣德
• Other Authors: Jau, Wen-Chen
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/23797976644026670804

碩士 === 國立交通大學 === 土木工程學系 === 100 === In image processing and computer visualization area, a 3D virtual model based on 2D image information is one of the main interests. With the rapid IT progress, 3D model reconstruction are now widely used in computer graphics, industrial QA, GUI, etc. However, in AEC/FM field, 3D model is constructed by conventional computer graphic software, including BIM or 3D laser scan. This study develops a relatively more convenient and lower cost method to re-construct the 3D model. An iPhone with iOS4.3 simulator was used as the platform for development. The camera of iPhone was used to take two or more photos of the object. Then Xcode developer and Intel OpenCV function library were used to smooth, calibrate, and determine characteristics of the photo. 3D coordinates were then obtained. OpenGL and OpenGL ES are used to plot the 3D model and the model can be viewed in different angles by rotating, shift, zooming. The new method is then verified by comparing the real structure and the reconstructed 3D model and good correlations are confirmed.