Fruit sizing in-field using a mobile app

Koirala, Anand; Wang, Z.; Walsh, Kerry B.; McCarthy, Cassondra

doi:10.17660/actahortic.2019.1244.20

Cited by 2 publications

(3 citation statements)

References 7 publications

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“…Creation of a camera for solar pointing to a precision of 0.01 32 . Detection of the distance and dimensions of a tracked object using an algorithm in combination with a camera obscura 33 . Calibration and positioning Calibration of industrial robots with an absolute position tracking system 34 .…”

Section: Related Studiesmentioning

confidence: 99%

“…Detection of the distance and dimensions of a tracked object using an algorithm in combination with a camera obscura 33 .…”

Section: Related Studiesmentioning

confidence: 99%

“…Camera obscura models have many practical applications, such as detecting and avoiding obstacles 31 , precise solar pointing 32 or determining the distance and dimensions of a tracked object 33 . Camera obscura models can be also used in the calibration process for industrial robots 34 .…”

Section: Related Studiesmentioning

confidence: 99%

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Industrial camera model positioned on an effector for automated tool center point calibration

Konecny,

Beremlijski,

Bailova

et al. 2024

Sci Rep

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The study presents a novel, full model of an industrial camera suitable for robotic manipulator tool center point (TCP) calibration. The authors propose a new solution which employs a full camera model positioned on the effector of an industrial robotic arm. The proposed full camera model simulates the capture of a calibration pattern for use in automated TCP calibration. The study describes an experimental test robot stand for producing a reference data set, a full camera model, the parameters of a generally known camera obscura model, and a comparison of proposed solution with the camera obscura model. The results are discussed in the context of an innovative approach which features a full camera model to assist the TCP calibration process. The results showed that the full camera model produced greater accuracy, a significant benefit not provided by other state-of-the-art methods. In several cases, the absolute error produced was up to seven times lower than with the state-of-the-art camera obscura model. The error for small rotation (max. of 5$$^\circ $$ ∘ ) and small translation (max. of 20 mm) was 3.65 pixels. The results also highlighted the applicability of the proposed solution in real-life industrial processes.

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