Search Results for author: Donald G. Dansereau

Found 15 papers, 1 papers with code

TaCOS: Task-Specific Camera Optimization with Simulation

no code implementations17 Apr 2024 Chengyang Yan, Donald G. Dansereau

With cameras playing a pivotal role in robotic perception, we introduce a novel end-to-end optimization approach for co-designing a camera with specific robotic tasks by combining derivative-free and gradient-based optimizers.

Adapting CNNs for Fisheye Cameras without Retraining

no code implementations12 Apr 2024 Ryan Griffiths, Donald G. Dansereau

The issue arises that these large-FOV images can't be rectified to a perspective projection without significant cropping of the original image.

The Need for Inherently Privacy-Preserving Vision in Trustworthy Autonomous Systems

no code implementations29 Mar 2023 Adam K. Taras, Niko Suenderhauf, Peter Corke, Donald G. Dansereau

Vision is a popular and effective sensor for robotics from which we can derive rich information about the environment: the geometry and semantics of the scene, as well as the age, gender, identity, activity and even emotional state of humans within that scene.

Privacy Preserving

NOCaL: Calibration-Free Semi-Supervised Learning of Odometry and Camera Intrinsics

no code implementations14 Oct 2022 Ryan Griffiths, Jack Naylor, Donald G. Dansereau

This work represents a key step toward automating the interpretation of general camera geometries and emerging imaging technologies.

Novel View Synthesis

BuFF: Burst Feature Finder for Light-Constrained 3D Reconstruction

no code implementations20 Sep 2022 Ahalya Ravendran, Mitch Bryson, Donald G. Dansereau

Robots operating at night using conventional vision cameras face significant challenges in reconstruction due to noise-limited images.

3D Reconstruction

Semantically Accurate Super-Resolution Generative Adversarial Networks

no code implementations17 May 2022 Tristan Frizza, Donald G. Dansereau, Nagita Mehr Seresht, Michael Bewley

This work addresses the problems of semantic segmentation and image super-resolution by jointly considering the performance of both in training a Generative Adversarial Network (GAN).

Generative Adversarial Network Image Super-Resolution +2

Burst Imaging for Light-Constrained Structure-From-Motion

no code implementations23 Aug 2021 Ahalya Ravendran, Mitch Bryson, Donald G. Dansereau

Images captured under extremely low light conditions are noise-limited, which can cause existing robotic vision algorithms to fail.

3D Reconstruction Image Registration

Refractive Light-Field Features for Curved Transparent Objects in Structure from Motion

no code implementations29 Mar 2021 Dorian Tsai, Peter Corke, Thierry Peynot, Donald G. Dansereau

Curved refractive objects are common in the human environment, and have a complex visual appearance that can cause robotic vision algorithms to fail.

Transparent objects

Unsupervised Learning of Depth Estimation and Visual Odometry for Sparse Light Field Cameras

no code implementations21 Mar 2021 S. Tejaswi Digumarti, Joseph Daniel, Ahalya Ravendran, Donald G. Dansereau

We anticipate our technique to generalise to a broad class of LF and sparse LF cameras, and to enable unsupervised recalibration for coping with shifts in camera behaviour over the lifetime of a robot.

Depth Estimation Visual Odometry

Multiplexed Illumination for Classifying Visually Similar Objects

no code implementations23 Sep 2020 Taihua Wang, Donald G. Dansereau

We use the light stage to model and synthetically relight training samples, and propose a greedy pattern selection scheme that exploits this ability to train in simulation.

Classification General Classification +2

LiFF: Light Field Features in Scale and Depth

1 code implementation CVPR 2019 Donald G. Dansereau, Bernd Girod, Gordon Wetzstein

Feature detectors and descriptors are key low-level vision tools that many higher-level tasks build on.

A Wide-Field-Of-View Monocentric Light Field Camera

no code implementations CVPR 2017 Donald G. Dansereau, Glenn Schuster, Joseph Ford, Gordon Wetzstein

Finally, we describe a processing toolchain, including a convenient spherical LF parameterization, and demonstrate depth estimation and post-capture refocus for indoor and outdoor panoramas with 15 x 15 x 1600 x 200 pixels (72 MPix) and a 138-degree FOV.

Depth Estimation

Mirrored Light Field Video Camera Adapter

no code implementations16 Dec 2016 Dorian Tsai, Donald G. Dansereau, Steve Martin, Peter Corke

This paper proposes the design of a custom mirror-based light field camera adapter that is cheap, simple in construction, and accessible.

Richardson-Lucy Deblurring for Moving Light Field Cameras

no code implementations14 Jun 2016 Donald G. Dansereau, Anders Eriksson, Jürgen Leitner

The method deals correctly with blur caused by 6-degree-of-freedom camera motion in complex 3-D scenes, without performing depth estimation.

Deblurring Depth Estimation

Decoding, Calibration and Rectification for Lenselet-Based Plenoptic Cameras

no code implementations CVPR 2013 Donald G. Dansereau, Oscar Pizarro, Stefan B. Williams

Results include calibration of a commercially available camera using three calibration grid sizes over five datasets.

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