A comparison between single-stage and two-stage 3D tracking algorithms for greenhouse robotics

Fuente: arXiv
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Auteurs principaux: Rapado-Rincon, David, Burusa, Akshay K., van Henten, Eldert J., Kootstra, Gert
Format: Preprint
Publié: 2024
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author Rapado-Rincon, David
Burusa, Akshay K.
van Henten, Eldert J.
Kootstra, Gert
author_facet Rapado-Rincon, David
Burusa, Akshay K.
van Henten, Eldert J.
Kootstra, Gert
contents With the current demand for automation in the agro-food industry, accurately detecting and localizing relevant objects in 3D is essential for successful robotic operations. However, this is a challenge due the presence of occlusions. Multi-view perception approaches allow robots to overcome occlusions, but a tracking component is needed to associate the objects detected by the robot over multiple viewpoints. Multi-object tracking (MOT) algorithms can be categorized between two-stage and single-stage methods. Two-stage methods tend to be simpler to adapt and implement to custom applications, while single-stage methods present a more complex end-to-end tracking method that can yield better results in occluded situations at the cost of more training data. The potential advantages of single-stage methods over two-stage methods depends on the complexity of the sequence of viewpoints that a robot needs to process. In this work, we compare a 3D two-stage MOT algorithm, 3D-SORT, against a 3D single-stage MOT algorithm, MOT-DETR, in three different types of sequences with varying levels of complexity. The sequences represent simpler and more complex motions that a robot arm can perform in a tomato greenhouse. Our experiments in a tomato greenhouse show that the single-stage algorithm consistently yields better tracking accuracy, especially in the more challenging sequences where objects are fully occluded or non-visible during several viewpoints.
format Preprint
id arxiv_https___arxiv_org_abs_2404_12963
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle A comparison between single-stage and two-stage 3D tracking algorithms for greenhouse robotics
Rapado-Rincon, David
Burusa, Akshay K.
van Henten, Eldert J.
Kootstra, Gert
Robotics
With the current demand for automation in the agro-food industry, accurately detecting and localizing relevant objects in 3D is essential for successful robotic operations. However, this is a challenge due the presence of occlusions. Multi-view perception approaches allow robots to overcome occlusions, but a tracking component is needed to associate the objects detected by the robot over multiple viewpoints. Multi-object tracking (MOT) algorithms can be categorized between two-stage and single-stage methods. Two-stage methods tend to be simpler to adapt and implement to custom applications, while single-stage methods present a more complex end-to-end tracking method that can yield better results in occluded situations at the cost of more training data. The potential advantages of single-stage methods over two-stage methods depends on the complexity of the sequence of viewpoints that a robot needs to process. In this work, we compare a 3D two-stage MOT algorithm, 3D-SORT, against a 3D single-stage MOT algorithm, MOT-DETR, in three different types of sequences with varying levels of complexity. The sequences represent simpler and more complex motions that a robot arm can perform in a tomato greenhouse. Our experiments in a tomato greenhouse show that the single-stage algorithm consistently yields better tracking accuracy, especially in the more challenging sequences where objects are fully occluded or non-visible during several viewpoints.
title A comparison between single-stage and two-stage 3D tracking algorithms for greenhouse robotics
topic Robotics
url https://arxiv.org/abs/2404.12963