This is the meditation center, atop a small hill, inside the NISER campus at Khordha, Odisha.
Project Tirtha is an academic initiative to create 3D models of heritage sites, using crowdsourced images. The word Tirtha is Sanskrit for "a place of pilgrimage", and is commonly used to refer to the sacred sites of Hinduism. Our goal is to preserve and showcase the beauty and cultural significance of heritage sites. We believe that by allowing the general public to contribute to the creation of these models, and by providing open access to these models, we can increase awareness and appreciation of these important cultural landmarks and inspire future generations to maintain them for years to come.
This project is open-source under the GNU Affero General Public License v3.0 and is under active development. You can find the source code on our GitHub repo. All contributions are welcome. Please read CONTRIBUTING for more details. You can also contribute by reporting bugs or suggestions on the repo. Moreover, you can contribute to the database by submitting images by clicking on the "Contribute" button or by suggesting new sites by clicking on the "Request site" button. Please read How do I contribute? before proceeding. A slideshow with video instructions for the project can be found here, while a slidedeck presented at ACM Web3D 2023 can be found here.
Please cite the following paper if you use this software in your work:
@inproceedings{10.1145/3611314.3615904, author = {Shivottam, Jyotirmaya and Mishra, Subhankar}, title = {Tirtha - An Automated Platform to Crowdsource Images and Create 3D Models of Heritage Sites}, year = {2023}, isbn = {9798400703249}, publisher = {Association for Computing Machinery}, address = {New York, NY, USA}, url = {https://doi.org/10.1145/3611314.3615904}, doi = {10.1145/3611314.3615904}, booktitle = {Proceedings of the 28th International ACM Conference on 3D Web Technology}, articleno = {11}, numpages = {15}, keywords = {photogrammetry, open source, digital heritage, crowdsourcing, 3D dataset}, location = {San Sebastian, Spain}, series = {Web3D '23} }
Before you begin, please read the following instructions:
If you encounter errors, try the following:
This project utilizes open-source libraries and an automated photogrammetry pipeline, based on AliceVision, to create 3D models from crowdsourced images, broadly performing the steps described at AliceVision | Photogrammetry Pipeline. The generated textured mesh is denoised, decimated, and converted to a .glb
or
a .glTF
file using obj2gltf
. This file is optimized for web use with meshoptimizer
. Finally, the 3D model is rendered in the browser using <model-viewer>
. Please note that the model displayed here is a low-poly version due to web & mobile device constraints.
We thank the following individuals for their contributions to the project's development:
We are grateful to the developers of the following open-source libraries, which help make this project a reality:
obj2gltf
gltfpack
<model-viewer>
We also thank Odisha State Archaeology for their support.
[Effective: July 15, 2023] By accessing this website or uploading images to Project Tirtha ("use"), you agree to be legally and contractually bound by these terms of use and our Privacy Policy. If you do not agree to these terms or our privacy policy, do not access or use Tirtha.
[Effective: July 15, 2023] Please read our privacy policy carefully before using Tirtha. Do not access or use Tirtha if you do not agree with any part of this policy.