Search Results for author: Steven W. Chen

Found 10 papers, 4 papers with code

Place Recognition in Forests with Urquhart Tessellations

1 code implementation23 Sep 2020 Guilherme V. Nardari, Avraham Cohen, Steven W. Chen, Xu Liu, Vaibhav Arcot, Roseli A. F. Romero, Vijay Kumar

In this letter, we present a novel descriptor based on Urquhart tessellations derived from the position of trees in a forest.

Loop Closure Detection Position

SLOAM: Semantic Lidar Odometry and Mapping for Forest Inventory

no code implementations29 Dec 2019 Steven W. Chen, Guilherme V. Nardari, Elijah S. Lee, Chao Qu, Xu Liu, Roseli A. F. Romero, Vijay Kumar

This paper describes an end-to-end pipeline for tree diameter estimation based on semantic segmentation and lidar odometry and mapping.

Segmentation Semantic Segmentation

Large Scale Model Predictive Control with Neural Networks and Primal Active Sets

no code implementations23 Oct 2019 Steven W. Chen, Tianyu Wang, Nikolay Atanasov, Vijay Kumar, Manfred Morari

The approach combines an offline-trained fully-connected neural network with an online primal active set solver.

Model Predictive Control

DFuseNet: Deep Fusion of RGB and Sparse Depth Information for Image Guided Dense Depth Completion

1 code implementation2 Feb 2019 Shreyas S. Shivakumar, Ty Nguyen, Ian D. Miller, Steven W. Chen, Vijay Kumar, Camillo J. Taylor

In this paper we propose a convolutional neural network that is designed to upsample a series of sparse range measurements based on the contextual cues gleaned from a high resolution intensity image.

Depth Completion Super-Resolution

Decentralization of Multiagent Policies by Learning What to Communicate

no code implementations24 Jan 2019 James Paulos, Steven W. Chen, Daigo Shishika, Vijay Kumar

Effective communication is required for teams of robots to solve sophisticated collaborative tasks.

Robotics

Robust Fruit Counting: Combining Deep Learning, Tracking, and Structure from Motion

no code implementations1 Apr 2018 Xu Liu, Steven W. Chen, Shreyas Aditya, Nivedha Sivakumar, Sandeep Dcunha, Chao Qu, Camillo J. Taylor, Jnaneshwar Das, Vijay Kumar

We present a novel fruit counting pipeline that combines deep segmentation, frame to frame tracking, and 3D localization to accurately count visible fruits across a sequence of images.

Unsupervised Deep Homography: A Fast and Robust Homography Estimation Model

3 code implementations12 Sep 2017 Ty Nguyen, Steven W. Chen, Shreyas S. Shivakumar, Camillo J. Taylor, Vijay Kumar

Homography estimation between multiple aerial images can provide relative pose estimation for collaborative autonomous exploration and monitoring.

Homography Estimation Pose Estimation

Neural Network Memory Architectures for Autonomous Robot Navigation

no code implementations23 May 2017 Steven W. Chen, Nikolay Atanasov, Arbaaz Khan, Konstantinos Karydis, Daniel D. Lee, Vijay Kumar

This work is a first thorough study of memory structures for deep-neural-network-based robot navigation, and offers novel tools to train such networks from supervision and quantify their ability to generalize to unseen scenarios.

Robot Navigation

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