Title
Physics-based scene-level reasoning for object pose estimation in clutter
Abstract
This paper focuses on vision-based pose estimation for multiple rigid objects placed in clutter, especially in cases involving occlusions and objects resting on each other. Progress has been achieved recently in object recognition given advancements in deep learning. Nevertheless, such tools typically require a large amount of training data and significant manual effort to label objects. This limits their applicability in robotics, where solutions must scale to a large number of objects and variety of conditions. Moreover, the combinatorial nature of the scenes that could arise from the placement of multiple objects is difficult to capture in the training dataset. Thus, the learned models might not produce the desired level of precision required for tasks, such as robotic manipulation. This work proposes an autonomous process for pose estimation that spans from data generation to scene-level reasoning and self-learning. In particular, the proposed framework first generates a labeled dataset for training a convolutional neural network (CNN) for object detection in clutter. These detections are used to guide a scene-level optimization process, which considers the interactions between the different objects present in the clutter to output pose estimates of high precision. Furthermore, confident estimates are used to label online real images from multiple views and re-train the process in a self-learning pipeline. Experimental results indicate that this process is quickly able to identify in cluttered scenes physically consistent object poses that are more precise than those found by reasoning over individual instances of objects. Furthermore, the quality of pose estimates increases over time given the self-learning process.
Year
DOI
Venue
2022
10.1177/0278364919846551
INTERNATIONAL JOURNAL OF ROBOTICS RESEARCH
Keywords
DocType
Volume
Object detection, 6D pose estimation, robot perception, convolutional neural networks, Monte Carlo tree search, lifelong learning
Journal
41
Issue
ISSN
Citations 
6
0278-3649
0
PageRank 
References 
Authors
0.34
0
3
Name
Order
Citations
PageRank
Chaitanya Mitash133.41
Boularias, Abdeslam210520.64
Kostas E. Bekris393899.49