Search Results for author: Koushik Srivatsan

Found 4 papers, 3 papers with code

FLIP: Cross-domain Face Anti-spoofing with Language Guidance

2 code implementations ICCV 2023 Koushik Srivatsan, Muzammal Naseer, Karthik Nandakumar

Specifically, we show that aligning the image representation with an ensemble of class descriptions (based on natural language semantics) improves FAS generalizability in low-data regimes.

Contrastive Learning Face Anti-Spoofing +1

FedSIS: Federated Split Learning with Intermediate Representation Sampling for Privacy-preserving Generalized Face Presentation Attack Detection

1 code implementation20 Aug 2023 Naif Alkhunaizi, Koushik Srivatsan, Faris Almalik, Ibrahim Almakky, Karthik Nandakumar

In FedSIS, a hybrid Vision Transformer (ViT) architecture is learned using a combination of FL and split learning to achieve robustness against statistical heterogeneity in the client data distributions without any sharing of raw data (thereby preserving privacy).

Domain Generalization Face Presentation Attack Detection +2

Evading Forensic Classifiers with Attribute-Conditioned Adversarial Faces

1 code implementation CVPR 2023 Fahad Shamshad, Koushik Srivatsan, Karthik Nandakumar

While these forensic models can detect whether a face image is synthetic or real with high accuracy, they are also vulnerable to adversarial attacks.

Attribute Meta-Learning

DEXTER: An end-to-end system to extract table contents from electronic medical health documents

no code implementations14 Jul 2022 Nandhinee PR, Harinath Krishnamoorthy, Koushik Srivatsan, Anil Goyal, Sudarsun Santhiappan

We design a conventional computer vision-based approach for table type classification and cell detection using parameterized kernels based on image size for detecting rows and columns.

Cell Detection Optical Character Recognition (OCR) +2

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