Saurabh Saini

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saurabh[dot]saini[at]research[dot]iiit[dot]ac[dot]in

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  About Me


I am finishing my Ph.D. (defense pending) under the guidance of Prof. P. J. Narayanan in Center for Visual Information Technology (CVIT) lab, a part of Kohli Center on Intelligent Systems (KCIS), at the International Institute of Information Technology-Hyderabad (IIIT-H) India.

My general research interest is in the topics related to Computer Vision, Machine Learning and Optimization, especially applied to 2D or 3D reconstruction. Currently I am working on Inverse Rendering problems. Specifically, I am focusing on Intrinsic Image Decomposition (separating object property based vs. light related components in an image) and Image Based Relighting (analyzing and editing image illumination).

Apart from this, I also like wandering in the domains of 3D modeling, registration, tracking, feature embedding, transfer learning, geometric learning, explainable AI etc. (the list grows ... :)


Personally, sometimes I enjoy sketching (graphite), reading (non-fiction) and writing (poems).

 



  Publications



Specularity Factorization for Low Light Enhancement
Saurabh Saini, P J Narayanan
CVPR, 2024 (Oral)

abstract | bibtex | arxiv | webpage


    @InProceedings{saini2024rsfnet,
        author    = {Saini, Saurabh and Narayanan, P. J.},
        title     = {Specularity Factorization for Low Light Enhancement},
        booktitle = {Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)},
        year      = {2024},
    }


Concept Distillation: Leveraging Human-Centered Explanations for Model Improvement
Avani Gupta, Saurabh Saini, P J Narayanan
NeurIPS, 2023 (Poster)

abstract | bibtex | webpage | code | arxiv | poster | video


    @inproceedings{
        gupta2023concept,
        title={Concept Distillation: Leveraging Human-Centered Explanations for Model Improvement},
        author={Avani Gupta and Saurabh Saini and P J Narayanan},
        booktitle={Thirty-seventh Conference on Neural Information Processing Systems},
        year={2023},
        url={https://openreview.net/forum?id=arkmhtYLL6}
        }


Interactive Segmentation of Radiance Fields
Rahul Goel, Sirikonda Dhawal Saurabh Saini, P J Narayanan
CVPR, 2023 (Poster)

abstract | bibtex | webpage | code | arxiv | video


@inproceedings{isrfgoel2023,
title={{Interactive Segmentation of Radiance Fields}}, 
author={Goel, Rahul and Sirikonda, Dhawal and Saini, Saurabh and Narayanan, P.J.},
year={2023},
booktitle = {{Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)}},
}


Quaternion Factorized Simulated Exposure Fusion for Low Light Image Enhancement
Saurabh Saini, P J Narayanan
ICVGIP, 2022 (Oral)

abstract | bibtex | webpage | code | poster


@inproceedings{sainiQFSEF22,
author = {Saini, Saurabh and Narayanan, P. J.},
title = {Quaternion Factorized Simulated Exposure Fusion for Low Light Image Enhancement},
year = {2022},
doi = {10.1145/3571600.3571604},
booktitle = {Proceedings of the Thirteenth Indian Conference on Computer Vision, Graphics and Image Processing},
series = {ICVGIP '22}}


Interpreting Intrinsic Image Decomposition using Concept Activations
Avani Gupta, Saurabh Saini, P J Narayanan
ICVGIP, 2022 (Oral)

*****[Best Paper Award]*****

abstract | bibtex | webpage | code | poster | supplementary


@inproceedings{guptaIID22,
author = {Gupta, Avani and Saini, Saurabh and Narayanan, P. J.},
title = {Interpreting Intrinsic Image Decomposition using Concept Activations},
year = {2022},
doi = {10.1145/3571600.3571603},
booktitle = {Proceedings of the Thirteenth Indian Conference on Computer Vision, Graphics and Image Processing},
series = {ICVGIP '22}}


StyleTRF: Stylizing Tensorial Radiance Fields
Rahul Goel, Sirikonda Dhawal Saurabh Saini, P J Narayanan
ICVGIP, 2022 (Spotlight)

abstract | bibtex | webpage | arxiv | poster | video


@inproceedings{goel2022styletrf,
author = {Goel, Rahul and Sirikonda, Dhawal and Saini, Saurabh and Narayanan, P. J.},
title = {StyleTRF: Stylizing Tensorial Radiance Fields},
year = {2022},
doi = {10.1145/3571600.3571643},
booktitle = {Proceedings of the Thirteenth Indian Conference on Computer Vision, Graphics and Image Processing},
series = {ICVGIP '22}}


Learning to Stylize Novel Views
Hsin-Ping Huang, Hung-Yu Tseng, Saurabh Saini, Maneesh Singh, Ming-Hsuan Yang
ICCV, 2021 (Poster)

abstract | bibtex | webpage | code | arxiv (+ supplementary)


@article{Huang2021LearningTS,
title={Learning to Stylize Novel Views},
author={Hsin-Ping Huang and Hung-Yu Tseng and Saurabh Saini and Maneesh Kumar Singh and Ming-Hsuan Yang},
journal={2021 IEEE/CVF International Conference on Computer Vision (ICCV)},
year={2021},
pages={13849-13858}}

Semantic Hierarchical Priors for Intrinsic Image Decomposition
Saurabh Saini, P. J. Narayanan
Arxiv, 2019

abstract | bibtex | arxiv


@article{Saini2019SemanticHP,
title={Semantic Hierarchical Priors for Intrinsic Image Decomposition},
author={Saurabh Saini and P. J. Narayanan},
journal={ArXiv},
year={2019},
volume={abs/1902.03830}}

Neural Rendering for Material Visualization
Aakash KT, Parikshit Sakurikar, Saurabh Saini, P. J. Narayanan
Siggraph Asia, 2019 (Technical Briefs)

abstract | bibtex | webpage | code | arxiv

@ARTICLE{2019arXiv190809530K,
author = {KT, Aakash and Sakurikar, Parikshit and Saini, Saurabh and Narayanan, P. J.},
title = "{A Flexible Neural Renderer for Material Visualization}",
journal = {arXiv e-prints},
keywords = {Computer Science - Graphics},
year = "2019",
month = "Aug",
archivePrefix = {arXiv},
eprint = {1908.09530},
primaryClass = {cs.GR},}

Semantic Priors for Intrinsic Image Decomposition
Saurabh Saini, P. J. Narayanan
BMVC, 2018 (Oral)

*****[Best Industrial Paper, Honourable Mention]*****

abstract | bibtex | pdf | supplementary

@inproceedings{DBLP:conf/bmvc/SainiN18,
author    = {Saurabh Saini and P. J. Narayanan},
title     = {Semantic Priors for Intrinsic Image Decomposition},
booktitle = {British Machine Vision Conference 2018, {BMVC} 2018, Northumbria University, Newcastle, UK, September 3-6, 2018},
pages     = {154},
year      = {2018},
url       = {http://bmvc2018.org/contents/papers/0796.pdf},}

Human Shape Capture and Tracking at Home.
Gaurav Mishra, Saurabh Saini, Kiran Varanasi, P. J. Narayanan
WACV, 2018 (Oral)

abstract | bibtex | webpage | pdf | supplementary | presentation

@inproceedings{DBLP:conf/wacv/MishraSVN18,
author    = {Gaurav Mishra and Saurabh Saini and Kiran Varanasi and P. J. Narayanan},
title     = {Human Shape Capture and Tracking at Home},
booktitle = {2018 {IEEE} Winter Conference on Applications of Computer Vision, {WACV} 2018, Lake Tahoe, NV, USA, March 12-15, 2018},
pages     = {390--399},
year      = {2018},
doi       = {10.1109/WACV.2018.00049},}

Intrinsic image decomposition using focal stacks.
Saurabh Saini, Parikshit Sakurikar , P. J. Narayanan
ICVGIP, 2016 (Oral)

abstract | bibtex | code | pdf | supplementary

@inproceedings{DBLP:conf/icvgip/SainiSN16,
author    = {Saurabh Saini and Parikshit Sakurikar and P. J. Narayanan},
title     = {Intrinsic image decomposition using focal stacks},
booktitle = {Proceedings of the Tenth Indian Conference on Computer Vision, Graphics and Image Processing, {ICVGIP} 2016, Guwahati, Assam, India, December 18-22, 2016},
pages     = {88:1--88:8},
year      = {2016},
url       = {https://doi.org/10.1145/3009977.3010046},
doi       = {10.1145/3009977.3010046},}

Learning to hash-tag videos with Tag2Vec
Aditya Singh, Saurabh Saini, Rajvi Shah, P. J. Narayanan
ICVGIP, 2016 (Oral)

abstract | bibtex | arxiv

@inproceedings{DBLP:conf/icvgip/SinghSSN16,
author    = {Aditya Singh and Saurabh Saini and Rajvi Shah and P. J. Narayanan},
title     = {Learning to hash-tag videos with Tag2Vec},
booktitle = {Proceedings of the Tenth Indian Conference on Computer Vision, Graphics and Image Processing, {ICVGIP} 2016, Guwahati, Assam, India, December 18-22, 2016},
pages     = {94:1--94:8},
year      = {2016},
url       = {https://doi.org/10.1145/3009977.3010035},
doi       = {10.1145/3009977.3010035},}

From Traditional to Modern : Domain Adaptation for Action Classification in Short Social Video Clips
Aditya Singh, Saurabh Saini, Rajvi Shah, P. J. Narayanan
GCPR, 2016 (Oral)

abstract | bibtex | arxiv

@inproceedings{DBLP:conf/dagm/SinghSSN16,
author    = {Aditya Singh and Saurabh Saini and Rajvi Shah and P. J. Narayanan},
title     = {From Traditional to Modern: Domain Adaptation for Action Classification in Short Social Video Clips},
booktitle = {Pattern Recognition - 38th German Conference, {GCPR} 2016, Hannover, Germany, September 12-15, 2016, Proceedings},
pages     = {245--257},
year      = {2016},
url       = {https://doi.org/10.1007/978-3-319-45886-1\_20},
doi       = {10.1007/978-3-319-45886-1\_20},}



  Current Projects


Conceptual Backdoor Defense (under submission)
Leveraging interpretable AI techniques for network defense against backdoor attacks !


Unrolled Robust Retinex for Low Light Enhancement (under submission)
Can we build an unrolled architecture for Robust Retnex which can be self-supervised and employed for Low Light Enhancement ?


Illumination Spectra Separation
The project aims at studying the feasibility of decomposing scene illumination based on the color spectra of the illuminanat, generating spatially varying illuination maps and a relit image.