arXiv Computer Vision

Concept of a Sensor Test Environment for Dusty Agricultural Conditions

The paper introduces a concept for a sensor test environment tailored to dusty agricultural conditions, featuring both indoor and outdoor proving grounds. The indoor area includes a laboratory test bench with a closed dust circulation system and a test hall for life‑size objects, while the outdoor area offers dedicated setups that allow reproducible data collection with and without dust during real‑world agricultural tasks. The design and setups are visualized in 3D to aid understanding and implementation.

arXiv Computer Vision
Sep 21

Combining Object Detection with Geometry-Aware Clustering to Distinguish Overlapping Plants in UAV Imagery

The paper introduces a geometry‑aware post‑detection framework that resolves overlapping plant instances in RGB UAV imagery by combining object detection with geometric clustering of plant components. It uses component centroids and radial intersection points (RIPs) to determine whether a detected region contains one or two plants, applying K‑means or Gaussian mixture models and density filtering to improve clustering accuracy. Evaluated on eggplant and tomato crops, the method achieved high F1‑scores (0.89 for eggplant, 0.75 for tomato) and demonstrated that geometric reasoning can enhance plant‑level interpretation without requiring additional sensors or retraining.

By Ik Jae Lee, Hieu D. Nguyen, Mahbubur Meenar, Carlos Morrison Martinez, Cameron Connelly
arXiv AI
Aug 28

Active sensing to characterize the heterogeneity of plant stress

The paper introduces an autonomous robotic platform that performs targeted chlorophyll fluorescence measurements on plant leaves. It integrates 3D plant reconstruction, geometric analysis, and motion planning to identify suitable leaf surfaces and generate collision‑free trajectories for a robotic manipulator. This system enables automated, repeatable, and spatially resolved physiological measurements that extend beyond passive imaging.

By Ayman Laaroussi, Peter Hanappe, David Colliaux
arXiv Computer Vision
Oct 2

ALFRED: Requirement-driven development of an open-source mobile manipulator for long-term plant monitoring

ALFRED is an open‑source mobile manipulator designed for long‑term plant monitoring, built from commercial parts and featuring a six‑degree‑of‑freedom arm, LiDAR, RGB‑D cameras, RTK GNSS, and an IMU on an Ackermann‑steered base. The platform was iteratively refined over four builds to meet six requirements—durability, modularity, repairability, sensing reach, endurance, and reproducibility—resulting in a 66.1% usable arm reach and clear LiDAR views in the final build. Over a year of monthly forest surveys, ALFRED completed 528 traversals without missing a scheduled collection, demonstrating its reliability despite battery wear and rapid build transitions.

By Ciar\'an Miceal Johnson, Christopher Quail, Garry Ellard, Alistair McConnell, Steve Tonneau, Fernando Auat Cheein
arXiv Computer Vision
Oct 5

Physical AI Smart Spaces: A Large-Scale Benchmark for Multi-Camera 3D Perception in Smart Spaces

Physical AI Smart Spaces is the first benchmark that offers large‑scale, multi‑class, multi‑camera 3D perception data for indoor smart spaces. It includes over 280 hours of synchronized 1080p footage from nearly 1,800 cameras in warehouses, hospitals, and retail venues, with automatic annotations for identities, 2D and 3D bounding boxes, camera calibration, and depth. The benchmark spans synthetic generation, appearance augmentation, and real‑world Sim2Real evaluation, and introduces a 3D version of Higher Order Tracking Accuracy (HOTA) for evaluating multi‑class 3D box tracking.

By Yuxing Wang, Yizhou Wang, Anqi Li, Shuo Wang, Sameer Satish Pusegaonkar, Haoquan Liang, Jiajun Li, Shenxin Jiang, Jianhe Yuan, Shangru Li, Tongwei Dai, Zihao Chen, David C. Anastasiu, Sujit Biswas, Xunlei Wu, Zheng Tang