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Documentation of Historic Monuments Using Multi-Images 3D Modelling

توثيق المنشآت الأثرية باستخدام النمذجة ثلاثية الأبعاد متعددة الصور

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 Publication date 2011
and research's language is العربية
 Created by Shamra Editor




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In close range photogrammetry, the required geometric data for object documentation can be obtained from single photo or stereoscopic pairs of photos. But, the documentation of large historic monuments, the stereo pair is not sufficient. So, we must use many photos to cover the whole object. In this study, a new approach for 3D modeling of historic monuments is presented. This one is the multi-images approach. It takes the complicated geometric nature of object to be documented. This kind of modeling is one of most important applications of close range photogrammetry. In this study the results the multi-images approach is exposed by a practical example concerned a historic façade in Housn Souleman (Safita). We used digital photos obtained by the digital camera Kodak 8MP. This camera has a good geometric resolution suitable for precise documentation works. To achieve the modeling, some well known software for documentation purposes were used.


Artificial intelligence review:
Research summary
تتناول هذه الورقة البحثية توثيق المنشآت الأثرية باستخدام النمذجة ثلاثية الأبعاد متعددة الصور. يوضح الباحثان د. عمر الخليل ود. فايز ديب أن استخدام المزدوج الصوري التجسيمي غير كافٍ لتوثيق المنشآت الأثرية الضخمة، مما يستدعي استخدام عدد أكبر من الصور لتغطية المنشأة بالكامل. يعرض البحث تطبيقًا عمليًا يتضمن بناء نموذج ثلاثي الأبعاد لواجهة أثرية في حصن سليمان باستخدام صور رقمية تم الحصول عليها بواسطة آلة تصوير رقمية نوع Kodak 8MP. استخدم الباحثان برنامج PhotoModeler 5.1 لإنشاء النموذج، حيث تم التقاط 26 صورة للواجهة وتحليلها باستخدام البرنامج. أظهرت النتائج دقة عالية في النمذجة، مما يساهم في توثيق المنشآت الأثرية وترميمها بدقة. كما يقدم البحث مجموعة من التوصيات لالتقاط الصور المتعددة اللازمة للنمذجة ثلاثية الأبعاد، ويبرز أهمية استخدام هذه التقنية في الحفاظ على التراث الثقافي والتاريخي.
Critical review
دراسة نقدية: على الرغم من أن البحث يقدم طريقة فعالة لتوثيق المنشآت الأثرية باستخدام النمذجة ثلاثية الأبعاد متعددة الصور، إلا أن هناك بعض النقاط التي يمكن تحسينها. أولاً، لم يتم التطرق بشكل كافٍ إلى التحديات التي قد تواجه الباحثين عند تطبيق هذه التقنية في مواقع أثرية أخرى ذات ظروف بيئية وجغرافية مختلفة. ثانياً، كان من الممكن تقديم مقارنة أكثر تفصيلاً بين هذه التقنية وتقنيات التوثيق الأخرى مثل المسح الليزري ثلاثي الأبعاد. ثالثاً، لم يتم التطرق إلى التكلفة المالية لهذه التقنية مقارنة بالتقنيات الأخرى، وهو عامل مهم يجب مراعاته عند اختيار طريقة التوثيق المناسبة. أخيراً، كان من الممكن تضمين المزيد من الأمثلة العملية والتطبيقات الفعلية لهذه التقنية في مواقع أثرية مختلفة لتعزيز مصداقية النتائج.
Questions related to the research
  1. ما هي التقنية المستخدمة في توثيق المنشآت الأثرية في هذا البحث؟

    التقنية المستخدمة هي النمذجة ثلاثية الأبعاد متعددة الصور باستخدام برنامج PhotoModeler 5.1 وصور رقمية تم التقاطها بواسطة آلة تصوير نوع Kodak 8MP.

  2. لماذا لا يكفي استخدام المزدوج الصوري التجسيمي لتوثيق المنشآت الأثرية الضخمة؟

    لأن المزدوج الصوري التجسيمي لا يغطي كامل المنشأة الأثرية الضخمة، مما يستدعي استخدام عدد أكبر من الصور لتغطية المنشأة بالكامل.

  3. ما هي النتائج التي توصل إليها البحث بخصوص دقة النمذجة ثلاثية الأبعاد؟

    أظهرت النتائج دقة عالية في النمذجة ثلاثية الأبعاد، مما يساهم في توثيق المنشآت الأثرية وترميمها بدقة.

  4. ما هي التوصيات التي قدمها البحث لالتقاط الصور المتعددة اللازمة للنمذجة ثلاثية الأبعاد؟

    قدم البحث مجموعة من التوصيات لالتقاط الصور المتعددة، منها الحصول على زوايا جيدة بين الصور، والتقاط ثلاث صور على الأقل لكل نقطة مهمة، وتأمين تداخل جيد بين الصور.


References used
GRUSSENMEYER, P., HANKE, K., STREILEIN, A.. Applications métrologiques de la photogrammétrie numérique. In Photogrammétrie numérique, Paris: LAVOISIER, 2001, pp.317-361
COOPER M.A.R., ROBSON S., Theory of close range photogrammetry. In Close range photogrammetry and machine vision. ed. by K.B.Atkinson. Department of Photogrammetry and Surveying. University College London,1996
Eos Systems. User Manuel of PhotoModeler Pro4. Canada.2002
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