Exploration archéologique de la cité de Firozabad en Inde (Décembre 2014) by Nicolas Morelle

Grand merci à tous pour votre aide à la réalisation de la mission archéologique de Firozabad, nous restons bien sur en contact tout au long de la préparation des rapports et du travail de modélisation 3D. Je vous souhaite une excellente année 2015 !   <img alt="Dsc06669-1420709111" src="https://d3v4jsc54141g1.cloudfront.net/uploads/project_image/image/151177/DSC06669-1420709111.JPG" />   <img alt="Dsc07049-1420710065" src="https://d3v4jsc54141g1.cloudfront.net/uploads/project_image/image/151181/DSC07049-1420710065.JPG" /> <a href="https://scontent-b-fra.xx.fbcdn.net/hphotos-xpf1/t31.0-8/10862642_640848656020489_5740040796774633804_o.jpg" target="_blank">https://scontent-b-fra.xx.fbcdn.net/hphotos-xpf1/t31.0-8/10862642_640848656020489_5740040796774633804_o.jpg</a>

Les actes du colloque sur les Forts du Deccan seront publiés en fin d’année 2015.   <img alt="21_juin_2014r-1420709897" src="https://d3v4jsc54141g1.cloudfront.net/uploads/project_image/image/151180/21_juin_2014r-1420709897.jpg" />

Many monuments have been identified in the previous study. The main aim of the project is to obtain detailed plans of all buildings, of the fortified city on a large area of 1200m². So, we use the latest techniques of 3D photogrammetry from aerial photography. With accurate photographical coverage (approximately 2000 aerial photos with high precision sensor (more than 20MG pixels on zones of 40X40mètres), we will obtain an accuracy close to 10 cm (thanks to the work of qualimetry and georeferencing topography). So we can get a full and textured 3D model of the site, monuments and fortifications. We can draw the plans, sections and orthophotos from each building for this model and also the digital terrain model (DTM) to obtain the topographic map of the site and its surroundings with the nearby river. Thanks to the accuracy of the model, we will be able to identify and interpret the archaeological clues of the topography (walls, roads, lands) and restitute the orientations of walls and streets to draw the urban plan of the city, now lost in the field. Plans, sections and orthophotos of buildings and fortification we will permit to do the archaeological study.   <a href="https://www.youtube.com/watch?v=zkGrIzmKWWw&feature=youtu.be">https://www.youtube.com/watch?v=zkGrIzmKWWw&feature=youtu.be</a> This innovative technique will be an experiment used for the project first time in India. It will allow us to get maximum spatial information and textures in a short field time in compare of others methods (survey architecture (not accurate enough for planning or statement of destroyed elevations), the tacheometer survey (too long for the proposed area), or LIDAR scanner survey (too expensive). The processing time is relatively long as it need a powerful computer for calculations process of photos and topography benchmarks to create the 3D cloud, then mesh, and finally the texture. Then, we must adjust the 3D model obtained (correction, scaling, quality, georeferencing), then 3D post processing operations (creation of DTM, contours, plans and sections of buildings) and then study development (study slopes for the street restitutions), the study of fortification and buildings (orthophotos, plans and sections). Finally, we have the opportunity to create restitution of mains buildings from the 3D model (palace complex, hammams, Jama Masjid (built in 1406).   <a href="https://www.youtube.com/watch?v=XEDDD9pXjmU">https://www.youtube.com/watch?v=XEDDD9pXjmU</a> Creation of point cloud from photographs. Shooting must follow a parallel progress to the wall that you want to model (represented by each blue rectangle). The algorithms get the common dots between three pictures, creating the cloud in 3D. Torgal site, Karnataka, India, Mission 2014 LA3M - Malik Sandal Institute of Architecture of Bijapur.   <img alt="Tournay_coupe-1416456131" src="https://d3v4jsc54141g1.cloudfront.net/uploads/project_image/image/139641/tournay_coupe-1416456131.jpg" />

We gloriously achieved the objective of the fundraising, but this is not the end ! You still have time to join the adventure: any additional resources can improve the budget of the mission and help fund the additional costs (flight and modeling optimization) to reach a budget of 1500euros. Thank you all for your support and your participation. And thank you especially to Thomas and EVEHA International company have contributed so generously to support the French-Indian mission.

<img alt="Dsc06550-1415590493" src="https://d3v4jsc54141g1.cloudfront.net/uploads/project_image/image/136253/DSC06550-1415590493.JPG" />  présentation du programme de modélisation 3D à l'Institut d'Architecture Malik Sandal.   <img alt="P1000302-1415591718" src="https://d3v4jsc54141g1.cloudfront.net/uploads/project_image/image/136254/P1000302-1415591718.JPG" />  La mission 2014 à Torgal Fort   <img alt="P1000518-1415591905" src="https://d3v4jsc54141g1.cloudfront.net/uploads/project_image/image/136255/P1000518-1415591905.JPG" />  à l'école du village de Torgal.

Nicolas Chorier will accompany me on this mission to do aerial photos that will allow us to modelize in 3D an archaeological urban complex. Here is an overview of his work: <a href="http://nicopix.zenfolio.com/">http://nicopix.zenfolio.com/</a>   We also spoke about these new methods of photogrammetry by aerial photos in Pondichéry in India as part of the festival PondiArt: <a href="http://puinquirer.edu.in/?p=1817">http://puinquirer.edu.in/?p=1817</a>

Exploration archéologique de la cité de Firozabad en Inde (Décembre 2014)

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