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Register a new userComparison of digital cameras calibration methods in photogrammetry and computer vision
مقارنة طرائق معايرة آلات التصوير الرقمية في المساحة التصويرية و الرؤية بمعونة الحاسب
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لقد كانت مسألة معايرة آلة التصوير Camera calibration و مازالت مكوناً أساسياً في قياسات المسح التصويري و خاصةً في تطبيقات المساحة التصويرية القريبة عالية الدقة. فبالرغم من النمو السريع لاستعمال آلات التصوير الرقمية في تطبيقات القياسات ثلاثية الأبعاد, إلا أنه توجد الكثير من الحالات التي لا يمكن فيها استخدام هندسية شبكة الصور للحصول على معاملات آلة التصوير في موقع العمل. من أجل هذا السبب, ظهرت الحاجة من جديد إلى تطوير أسس للمعايرة المستقلة لآلة التصوير في أبحاث المساحة التصويرية و الرؤية بمعونة الحاسب. في هذا البحث, سنعرض مراجعة سريعة لأهم طرائق المعايرة في المساحة التصويرية و الرؤية بمعونة الحاسب كما سنقوم بمقارنة طريقة المعايرة الذاتية Self-calibration المستخدمة بشكل واسع في مجال المسح التصويري مع طريقة الخطوتين و التي تعتبر أحدث ما توصلت إليها الأبحاث في مجال الرؤية بمعونة الحاسب في مجال معايرة آلات التصوير الرقمية.
Camera calibration has always been an essential component of photogrammetric measurement, especially in high-accuracy close-range applications. Although the rapid growth in adoption of digital cameras in 3D measurement applications, there are many situations where the geometry of the image network will not support robust recovery of camera parameters via on-the-job calibration. For this reason, stand-alone camera calibration has again emerged as an important issue in photogrammetry and computer vision. In this paper, we give a rapid overview of the approaches adopted for camera calibration in photogrammetry and computer vision. Also, we compare the method of selfcalibration, largely used in photogrammetry, with the tow-steps method applied in computer vision for digital camera calibration.
References used
Duane C. Brown. Close-range camera calibration. Photogrammetric Engineering , 37(8):855–866, 1971
W. Faig. Calibration of close-range photogrammetry systems: Mathematical formulation. Photogrammetric Engineering and Remote Sensing , 41(12):1479–1486, 1975
Olivier Faugeras, Tuan Luong, and Steven Maybank. Camera self-calibration: theory and experiments. In G. Sandini, editor, Proc 2nd ECCV , volume 588 of Lecture Notes in Computer Science , pages 321–334, Santa Margherita Ligure, Italy
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تعد مقايسة الكرياتينين في المصل أختبار لوظيفة الكلية و تستخدم من أجل ذلك
طرائق متعددة الا أن معظم المخابر تتكبف بأستخدام طريقة ما للمقايسة.
قمنا في هذا البحث بدراسة ثلاثة طرق :
الأولى تعتمد على تقانة الأستشراب سائل عالي الكفاءة ، الثانية تعتمد على
تفاعل
Jaffé الذي يستند على التفاعل مع البكرات القلوية بعد عملية تجريد المصل من
بروتيناته, الثالثة تعتمد على تفاعل Jaff é
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وجدنا علاقة قوية بين الطريقة المباشرة و الطريقة التي تعتمد على الأستشراب سائل
عالي الكفاءة، لذلك ننصح بتطبيقها في العمل الروتيني في مخابر التحاليل الطبية.
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