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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/72465

    Title: 應用於大型物體三維模型重建之多重二維校正板相機校正流程開發;Development of Camera Calibration Process for Large-Scale 3D Model Reconstruction by Applying Multiple 2D Calibration Patterns
    Authors: 熊郁昇;Xiong,Yu-Sheng
    Contributors: 機械工程學系
    Keywords: 相機校正;三維建模;逆向工程;camera calibration;3D modeling reconstruction;reverse engineering
    Date: 2016-08-25
    Issue Date: 2016-10-13 14:58:01 (UTC+8)
    Publisher: 國立中央大學
    Abstract: 近年來隨著數位傳播技術不斷地進步,藉由逆向工程可讓生活周遭物品數位化,再配合三維列印機即可重現出實體,這之中的媒介就是利用三維模型。然而重建三維模型不管是使用輪廓法配合單一校正板或立體視覺法,所能重建的物品存在一定的大小限制和困難程度。本研究之目的即為開發一套多重二維相機校正流程,利用輪廓法技術來重建大型物體之三維模型。
    ;With the continuous progress of digital communication technology, making object digitized and use three dimensional printers to reproduce could be achieved by reverse engineering technology. These process utilize digital three dimension model to achieve. However, whether using the Shape-From-Silhouettes (SFS) method with single 2D calibration pattern or Stereoscopic to reconstruct a three-dimension model, there are size limits and difficulty for reconstruction items. The purpose of the study is developing a camera calibration process with multiple 2D calibration patterns and a three dimension model with large-scale could be reconstructed by SFS method.
    In this study, five different calibration pattern and the corresponding decoding process were designed based on the two-dimension camera calibration, so the placement of patterns around objects could be identified. With the homography estimation method, the solid geometry of calibration patterns was obtained. All patterns of all images were integrated into a global coordinate system. Then both of external and internal parameters in each image were determined. The process mentioned above was integrated a human-machine interface program based on C# programing language. User can obtain the modeling information only by inputting the relevant information.
    Finally, this study chose three small-scale objects and four large-scale objects to demonstrate the reconstruction of three-dimension model for verifying the feasibility of the proposed method in this study.
    Appears in Collections:[機械工程研究所] 博碩士論文

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