Camera Calibration Algorithm for Tractor Vision Navigation

Zhang, Yonglin; Yang, Hongjun; Liu, Yuzuo; Yu, Nanhui; Liu, Xiaopeng; Pei, Houchang

doi:10.1145/3453187.3453378

Cited by 1 publication

(1 citation statement)

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“…Moreover, only the methods that have been tested for navigation and localization purposes are considered and included in Table 2. Many vision-based navigation algorithms have been developed, their performance to detect crop rows has been investigated and their potential use in vehicle guidance has been evaluated [102,103], yet only a part of them has actually been integrated into agricultural vehicles and tested in real-life navigation applications.…”

Section: Multi-vision Methodsmentioning

confidence: 99%

Computer Vision in Self-Steering Tractors

et al. 2022

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Automatic navigation of agricultural machinery is an important aspect of Smart Farming. Intelligent agricultural machinery applications increasingly rely on machine vision algorithms to guarantee enhanced in-field navigation accuracy by precisely locating the crop lines and mapping the navigation routes of vehicles in real-time. This work presents an overview of vision-based tractor systems. More specifically, this work deals with (1) the system architecture, (2) the safety of usage, (3) the most commonly faced navigation errors, (4) the navigation control system of tractors and presents (5) state-of-the-art image processing algorithms for in-field navigation route mapping. In recent research, stereovision systems emerge as superior to monocular systems for real-time in-field navigation, demonstrating higher stability and control accuracy, especially in extensive crops such as cotton, sunflower, maize, etc. A detailed overview is provided for each topic with illustrative examples that focus on specific agricultural applications. Several computer vision algorithms based on different optical sensors have been developed for autonomous navigation in structured or semi-structured environments, such as orchards, yet are affected by illumination variations. The usage of multispectral imaging can overcome the encountered limitations of noise in images and successfully extract navigation paths in orchards by using a combination of the trees’ foliage with the background of the sky. Concisely, this work reviews the current status of self-steering agricultural vehicles and presents all basic guidelines for adapting computer vision in autonomous in-field navigation.

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Section: Multi-vision Methodsmentioning

confidence: 99%