Development of a small range image sensor for short distance measurement suitable for robot hands using a multi-slit laser projector

This paper proposes a structure and a measurement method of a very small range image sensor for short distance measurement using a multi-slit laser projector. In recent years, industrial robots used in production lines have become widespread, and development of humanoid robots that operate in the sa...

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Main Authors: Tomoaki FUKUDA, Yonghoon JI, Kazunori UMEDA
Format: Article
Language:Japanese
Published: The Japan Society of Mechanical Engineers 2019-08-01
Series:Nihon Kikai Gakkai ronbunshu
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/transjsme/85/877/85_19-00087/_pdf/-char/en
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author Tomoaki FUKUDA
Yonghoon JI
Kazunori UMEDA
author_facet Tomoaki FUKUDA
Yonghoon JI
Kazunori UMEDA
author_sort Tomoaki FUKUDA
collection DOAJ
description This paper proposes a structure and a measurement method of a very small range image sensor for short distance measurement using a multi-slit laser projector. In recent years, industrial robots used in production lines have become widespread, and development of humanoid robots that operate in the same environment as humans is also proceeding. Many of these robots have an arm mechanism for gripping an object. In order to grasp an object, it is necessary to measure the distance and the object, so these robots are equipped with range image sensors. However, if the position of the range image sensor is away from the arm end, occlusion occurs by the arm during the gripping operation, and the object to be gripped cannot be measured. Therefore, a very small range image sensor that can be attached to a robot hand is required. The sensor used in this research projects multi-slit laser and measures the distance by the disparity of the detected laser light. For measurement, it is necessary to identify the number of each slit laser. Therefore, for the discrimination, the intensity information of the laser light image is used. The effectiveness of the proposed sensor is verified through short-range object measurement experiments.
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spelling doaj.art-4dbbebe2c50c4334a372fb3b33f664a92022-12-22T04:16:11ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612019-08-018587719-0008719-0008710.1299/transjsme.19-00087transjsmeDevelopment of a small range image sensor for short distance measurement suitable for robot hands using a multi-slit laser projectorTomoaki FUKUDA0Yonghoon JI1Kazunori UMEDA2Department of Precision Mechanics, Chuo UniversityDepartment of Precision Mechanics, Chuo UniversityDepartment of Precision Mechanics, Chuo UniversityThis paper proposes a structure and a measurement method of a very small range image sensor for short distance measurement using a multi-slit laser projector. In recent years, industrial robots used in production lines have become widespread, and development of humanoid robots that operate in the same environment as humans is also proceeding. Many of these robots have an arm mechanism for gripping an object. In order to grasp an object, it is necessary to measure the distance and the object, so these robots are equipped with range image sensors. However, if the position of the range image sensor is away from the arm end, occlusion occurs by the arm during the gripping operation, and the object to be gripped cannot be measured. Therefore, a very small range image sensor that can be attached to a robot hand is required. The sensor used in this research projects multi-slit laser and measures the distance by the disparity of the detected laser light. For measurement, it is necessary to identify the number of each slit laser. Therefore, for the discrimination, the intensity information of the laser light image is used. The effectiveness of the proposed sensor is verified through short-range object measurement experiments.https://www.jstage.jst.go.jp/article/transjsme/85/877/85_19-00087/_pdf/-char/ensmall sensorrange image sensormulti-slit laser projectorrobot handimage processing
spellingShingle Tomoaki FUKUDA
Yonghoon JI
Kazunori UMEDA
Development of a small range image sensor for short distance measurement suitable for robot hands using a multi-slit laser projector
Nihon Kikai Gakkai ronbunshu
small sensor
range image sensor
multi-slit laser projector
robot hand
image processing
title Development of a small range image sensor for short distance measurement suitable for robot hands using a multi-slit laser projector
title_full Development of a small range image sensor for short distance measurement suitable for robot hands using a multi-slit laser projector
title_fullStr Development of a small range image sensor for short distance measurement suitable for robot hands using a multi-slit laser projector
title_full_unstemmed Development of a small range image sensor for short distance measurement suitable for robot hands using a multi-slit laser projector
title_short Development of a small range image sensor for short distance measurement suitable for robot hands using a multi-slit laser projector
title_sort development of a small range image sensor for short distance measurement suitable for robot hands using a multi slit laser projector
topic small sensor
range image sensor
multi-slit laser projector
robot hand
image processing
url https://www.jstage.jst.go.jp/article/transjsme/85/877/85_19-00087/_pdf/-char/en
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AT yonghoonji developmentofasmallrangeimagesensorforshortdistancemeasurementsuitableforrobothandsusingamultislitlaserprojector
AT kazunoriumeda developmentofasmallrangeimagesensorforshortdistancemeasurementsuitableforrobothandsusingamultislitlaserprojector