Visual Texture-Based 3-D Roughness Measurement for Additive Manufacturing Surfaces

Yu, Haotian; Peng, Chongchong; Zhao, Zhuang; Bai, Lianfa; Han, Jing

doi:10.1109/access.2019.2919682

Cited by 11 publications

(3 citation statements)

References 19 publications

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“…It appears that the distribution for the wall 1 is shifted in the negative range of values. This kind of behaviour is typical for levelled surfaces in the industry or occurs naturally due to the erosion, because peaks are more easily removed than valleys [18].…”

Section: Wallmentioning

confidence: 93%

Non-Destructive Analysis to Investigate the Stone Alterations at a UNESCO World Heritage Site

Giovannacci

Mertz

Taye

et al. 2022

J. Hum. Earth Future

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This study concerns the eleven monolithic churches in Lalibela, in northeastern Ethiopia, a UNESCO World Heritage Site and currently the main pilgrimage site in Ethiopia. In 2019, on the initiative of Prime Minister, the French authorities proposed their support in the management on the site of the churches. To do so, the French Development Agency (AFD), in collaboration with the Ministry of Europe and Foreign Affairs and with the support of the Ministry of Culture, granted a feasibility study to examine ways of restoring, conserving, and developing the rock-hewn churches. The objective of the feasibility study conducted was to produce the preliminary technical diagnostics required for the preparation of the comprehensive project to restore, conserve, and develop the site. In order to propose a protection and conservation solution, diagnostics and analysis of the pathology of the rocks were made during two campaigns in November 2019 and November 2020. The rock pathology teams implemented non-destructive and minimally invasive analysis. The complementary methods acquire data from the rock surface and the different forms of differential alteration of the scoriaceous basalt. The objective is to characterize, through comparative analyses, the impact of a protective shelter on the alteration kinetics of the rock. The analysis, coupled with on-site observations, suggests that deterioration linked to liquid water and the persistence of a state of high water content is more damaging than the deterioration risk linked to salt crystallization. As water is the key factor in the very harmful alteration for the conservation of scoriaceous basalt as a heritage material in humid natural environments, it seems useful to fully cover the churches. Doi: 10.28991/HEF-2022-03-02-01 Full Text: PDF

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Section: Wallmentioning

confidence: 93%

Non-Destructive Analysis to Investigate the Stone Alterations at a UNESCO World Heritage Site

Giovannacci

Mertz

Taye

et al. 2022

J. Hum. Earth Future

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“…33 Texture: It is possible to vary the roughness of the surface and therefore the texture. [34][35][36] The texture can lead to surface mechanical properties of the surface or structural mechanical properties. 37 Moreover, the texture of a product can have a strong influence on the use of a product, so it is important to take texture into account when designing a product.…”

Section: Opportunities Associated With Shape Complexitymentioning

confidence: 99%

Augmented Design with Additive Manufacturing Methodology: Tangible Object-Based Method to Enhance Creativity in Design for Additive Manufacturing

Lang

Segonds

Jean

et al. 2021

3D Printing and Additive Manufacturing

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Additive manufacturing (AM) brings new design potential compared with traditional manufacturing. Nevertheless, traditional manufacturing knowledge remains embedded in the minds of designers and is a real cognitive barrier to design in AM. Design for Additive Manufacturing (DfAM) provides tools, techniques, and guidelines to optimize design with the specifics of AM. These methods are usable at different moments of the design process. Only few DfAMs focus on the early stages of design, the ideation phase, which allows for the most innovation. The literature highlights the effectiveness of methodologies based on tangible tools, such as cards or objects, to generate creativity. The difficulty with such tools is to be inspirational as well as formative. Therefore, this article presents a method to help designers capture the design potential of AM to design creative solutions at the early stages of product design, named the Augmented Design with AM Methodology (ADAM 2 ). This methodology relies on the potential of AM, defined in 14 opportunities and a set of 14 inspirational objects, each representing an opportunity. Dedicated to creativity sessions, this methodology allows forcing the association between knowledge of a company's sector and the design potential of AM. To validate the effectiveness of the ADAM 2 methodology, we use it for an industrial application in a jewelry and watchmaking company. The results showed that ADAM 2 promote the generation of creative solutions and the exploitation of the design potential of AM during the early design stages.

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“…In the production process of welding in the factory, it is always affected by many interference conditions such as splash, dust and strong arc light. Therefore, in the process of automatic welding, it is particularly important to use line structured light technology to accurately obtain weld position information [2].…”

Section: Introductionmentioning

confidence: 99%

The Centerline Extraction Algorithm of Weld Line Structured Light Stripe Based on Pyramid Scene Parsing Network

Wang

Yang

et al. 2021

IEEE Access

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Based on the good feature learning ability of the pyramid scene parsing network, a method for extracting the centerline of structured light stripes of weld lines based on the pyramid scene parsing network and Steger algorithm is proposed. This method avoids the traditional complex weld image preprocessing technology, and simplifies the operation steps of extracting the centerline of the structured light stripe of the weld image line. In this paper, the pyramid scene parsing network is used to predict the pixels containing weld feature information. Through the pyramid pooling module, the local and global context feature information is fused to supplement the feature information of the weld edge, and then the Steger algorithm is used to extract the weld feature centerline. The results show that the method in this paper can accurately extract the centerline position of the structured light stripe of the weld line under the interference of reflection, and the average value reaches 86.8 % on the accuracy evaluation index mean intersection over union, the 18.93 pixels on the weld extraction accuracy index root mean square error, and the average time of extracting the center line of structured light stripe of weld line is 0.188s.INDEX TERMS welding seam feature extraction,pyramid scene parsing network,steger algorithm,image segmentation

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Visual Texture-Based 3-D Roughness Measurement for Additive Manufacturing Surfaces

Cited by 11 publications

References 19 publications

Non-Destructive Analysis to Investigate the Stone Alterations at a UNESCO World Heritage Site

Non-Destructive Analysis to Investigate the Stone Alterations at a UNESCO World Heritage Site

Augmented Design with Additive Manufacturing Methodology: Tangible Object-Based Method to Enhance Creativity in Design for Additive Manufacturing

The Centerline Extraction Algorithm of Weld Line Structured Light Stripe Based on Pyramid Scene Parsing Network

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