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Sagnik Das

5 accepted papers

2025

R-VLM: Region-Aware Vision Language Model for Precise GUI Grounding

ACL 2025finding

Visual agent models for automating human activities on Graphical User Interfaces (GUIs) have emerged as a promising research direction, driven by advances in large Vision Language Models (VLMs). A critical challenge in GUI automation is the precise grounding of interface elements across diverse plat…

Cited by 0SourcePDFScholar
2022

Learning an Isometric Surface Parameterization for Texture Unwrapping

ECCV 2022poster

"In this paper, we present a novel approach to learn texture mapping for an isometrically deformed 3D surface and apply it for texture unwrapping of documents or other objects. Recent work on differentiable rendering techniques for implicit surfaces has shown high-quality 3D scene reconstruction and…

2021

End-to-End Piece-Wise Unwarping of Document Images

ICCV 2021poster

Document unwarping attempts to undo the physical deformation of the paper and recover a 'flatbed' scanned document-image for downstream tasks such as OCR. Current state-of-the-art relies on global unwarping of the document which is not robust to local deformation changes. Moreover, a global unwarpin…

Cited by 36PDFScholar
2019

DewarpNet: Single-Image Document Unwarping With Stacked 3D and 2D Regression Networks

ICCV 2019poster

Capturing document images with hand-held devices in unstructured environments is a common practice nowadays. However, "casual" photos of documents are usually unsuitable for automatic information extraction, mainly due to physical distortion of the document paper, as well as various camera positions…

Cited by 92PDFScholar