Search Results for author: Aswin Sankaranarayanan

Found 8 papers, 3 papers with code

FreeCam3D: Snapshot Structured Light 3D with Freely-Moving Cameras

no code implementations ECCV 2020 Yicheng Wu, Vivek Boominathan, Xuan Zhao, Jacob T. Robinson, Hiroshi Kawasaki, Aswin Sankaranarayanan, Ashok Veeraraghavan

The projected pattern can be observed in part or full by any camera, to reconstruct both the 3D map of the scene and the camera pose in the projector coordinates.

3D Reconstruction

PS$^2$F: Polarized Spiral Point Spread Function for Single-Shot 3D Sensing

no code implementations3 Jul 2022 Bhargav Ghanekar, Vishwanath Saragadam, Dushyant Mehra, Anna-Karin Gustavsson, Aswin Sankaranarayanan, Ashok Veeraraghavan

A special property of the phase mask used for generating the DHPSF is that a separation of the phase mask into two halves leads to a spatial separation of the two lobes.

Monocular Depth Estimation Super-Resolution

SASSI -- Super-Pixelated Adaptive Spatio-Spectral Imaging

1 code implementation28 Dec 2020 Vishwanath Saragadam, Michael DeZeeuw, Richard Baraniuk, Ashok Veeraraghavan, Aswin Sankaranarayanan

Hence, a scene-adaptive spatial sampling of an hyperspectral scene, guided by its super-pixel segmented image, is capable of obtaining high-quality reconstructions.

Halluci-Net: Scene Completion by Exploiting Object Co-occurrence Relationships

no code implementations18 Apr 2020 Kuldeep Kulkarni, Tejas Gokhale, Rajhans Singh, Pavan Turaga, Aswin Sankaranarayanan

The generated dense labelmap can then be used as input by state-of-the-art image synthesis techniques like pix2pixHD to obtain the final image.

Image Generation Semantic Segmentation

On Space-spectrum Uncertainty Analysis for Coded Aperture Systems

no code implementations16 Nov 2019 Vishwanath Saragadam, Aswin Sankaranarayanan

We introduce and analyze the concept of space-spectrum uncertainty for certain commonly-used designs for spectrally programmable cameras.

Cross-scale predictive dictionaries

no code implementations16 Nov 2015 Vishwanath Saragadam, Xin Li, Aswin Sankaranarayanan

Sparse representations using data dictionaries provide an efficient model particularly for signals that do not enjoy alternate analytic sparsifying transformations.

FlatCam: Thin, Bare-Sensor Cameras using Coded Aperture and Computation

2 code implementations1 Sep 2015 M. Salman Asif, Ali Ayremlou, Aswin Sankaranarayanan, Ashok Veeraraghavan, Richard Baraniuk

FlatCam is a thin form-factor lensless camera that consists of a coded mask placed on top of a bare, conventional sensor array.

Image Reconstruction

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