高強度紅外光源與其應用於高速攝影之研究;Study of High-intensity Infrared Light Source and its Application in High-speed Photography

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/92416

Title:	高強度紅外光源與其應用於高速攝影之研究;Study of High-intensity Infrared Light Source and its Application in High-speed Photography
Authors:	許廷偉;Hsu, Ting-Wei
Contributors:	光電科學與工程學系
Keywords:	高強度紅外光源;高速攝影;影像處理;High-Intensity Infrared Light Source;High-Speed Photography;Image Processing
Date:	2023-08-15
Issue Date:	2024-09-19 15:50:55 (UTC+8)
Publisher:	國立中央大學
Abstract:	棒球在台灣被稱為國球，有越來越多人關注這項運動，在棒球比賽中，裁判往往是讓比賽能夠公平進行的重要關鍵，但每位裁判在判決時會依照自己的習慣來進行判決，造成好球帶都會有相對的誤差，為了能夠有更公平的賽事，近幾年美國在棒球這部分從小聯盟最高層級的3A部分球隊，開始導入電子好球帶(Automated Ball System, ABS)來進行輔助判別，但此設備因受場地限制及價錢昂貴等因素無法使用，另外需要清楚拍攝棒球縫線進行分析，除了需考慮相機性能外，環境光也相當重要，由於環境光的不足將導致相機的曝光時間無法縮短，造成高速移動中的棒球變得模糊無法進行後續分析。因此本論文將會製作出一盞高強度紅外光作為光源，其目的不但應用於高速攝影機之補光，也能夠追蹤物體在移動時的狀況，後續再將影片分割成照片後對棒球進行分析，就可藉由照片分析棒球的球速與球種等參數。;Baseball is recognized as Taiwan′s national sport, and its popularity has been steadily on the rise. In baseball games, referees play a pivotal role in ensuring fair competition. However, variations in the strike zone may occur due to the personal judgment habits of individual referees. To enhance fairness in matches, the United States has recently introduced the Automated Ball System (ABS) in the highest level of minor league baseball, namely the Triple-A (3A) teams. Nonetheless, the implementation of ABS faces challenges such as venue constraints and high costs. Moreover, capturing clear images of the baseball seams is crucial for analysis, necessitating careful consideration of both camera performance and environmental lighting conditions. Therefore, this thesis aims to develop a high-intensity infrared light as a light source, which can serve not only as supplementary illumination for high-speed cameras but also enable tracking of moving objects. Subsequently, recorded videos will be segmented into photos to analyze various parameters of the baseball, such as its speed and type, using image analysis techniques.
Appears in Collections:	[Graduate Institute of Optics and Photonics] Electronic Thesis & Dissertation

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