Alternative Optical Acquisition Technique for Supporting Reverse Engineering Process

Rianmora, Suchada; Rangsiyangkoon, Molticha

doi:10.18178/ijmmm.2017.5.4.335

Cited by 2 publications

(2 citation statements)

References 10 publications

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“…Disadvantage of holes to 3D representation is the lack of representation 3D models and longer time for post-processing process [3]. These disadvantages have the direct effects on time consuming process and high cost of operation [4].…”

Section: Introductionmentioning

confidence: 99%

Filling Simple Holes by Using Enhanced Advancing Front Mesh Method (EAFM): Application to a Real Object

Awang¹,

Rahmat²,

Beng³

et al. 2019

cea

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Nowada ys, the physical object can be constructed in digital representation by reverse engineering process. The process started by collecting the point cloud data point from the surface of 3D object. The non-touch approaches from 3D laser scanner are advantageous because of their high scanning speed, high accuracy, real time application, etc. Object complexity such as glossy surface and shining can lead to deficiencies in the quality of data measure using a 3D scanner which leads to missing data and the formation of holes within the constructed 3D mod el object. A hole is referred to as si mpl e if it does not ha ve feature vertices except other point which have same connection of data points. This paper utilised the advanced front method (AFM) to create triangle into the simpl e holes area. The paper then impr oved the hole filling process for simple holes found on a 3D object or real-world object. In this paper, the enhanced method proposed two new AFM methods to the original method. The method was applied to the 3D object and the problem of finding new point for each triangle creation is solved.

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Section: Introductionmentioning

confidence: 99%

Filling Simple Holes by Using Enhanced Advancing Front Mesh Method (EAFM): Application to a Real Object

Awang¹,

Rahmat²,

Beng³

et al. 2019

cea

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show abstract

“…Moreover, a car door (consisting of a free-form shape) is utilized as the test component. Notice that the different object materials such as transparent, fluorescent, shiny, glossy, or black color, etc., may influence the performance of the two scanners and provide different scanning results [9]. Therefore, in this investigation same surface conditions, as recommended by the creaform company for these scanners, were employed.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Handheld Scanners for Automotive Applications

2018

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Featured Application: There has been an increased demand for, and there are potential benefits of, creating three-dimensional digital models of existing objects in the automotive, aerospace, cultural heritage, and medical industries. Non-contact data acquisition systems are in great demand owing to their higher data acquisition speed and movability. The application of unsuitable data acquisition may result in inaccurate data, thus making the reverse engineering ineffective and inefficient. Therefore, it is crucial for the designers to select the appropriate data acquisition technique, depending on the application requirements. Hence, this work provides the methodology and guidelines for the users to evaluate and compare different scanners for applications in the automotive, aerospace, and medical industries, etc. Abstract:The process of generating a computerized geometric model for an existing part is known as Reverse Engineering (RE). It is a very useful technique in product development and plays a significant role in automotive, aerospace, and medical industries. In fact, it has been getting remarkable attention in manufacturing industries owing to its advanced data acquisition technologies. The process of RE is based on two primary steps: data acquisition (also known as scanning) and data processing. To facilitate point data acquisition, a variety of scanning systems is available with different capabilities and limitations. Although the optical control of 3D scanners is fully developed, still several factors can affect the quality of the scanned data. As a result, the proper selection of scanning parameters, such as resolution, laser power, shutter time, etc., becomes very crucial. This kind of investigation can be very helpful and provide its users with guidelines to identify the appropriate factors. Moreover, it is worth noting that no single system is ideal in all applications. Accordingly, this work has compared two portable (handheld) systems based on laser scanning and white light optical scanning for automotive applications. A car door containing a free-form surface has been used to achieve the above-mentioned goal. The design of experiments has been employed to determine the effects of different scanning parameters and optimize them. The capabilities and limitations have been identified by comparing the two scanners in terms of accuracy, scanning time, triangle numbers, ease of use, and portability. Then, the relationships between the system capabilities and the application requirements have been established. The results revealed that the laser scanner performed better than the white light scanner in terms of accuracy, while the white light scanner performed better in terms of acquisition speed and triangle numbers.

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Alternative Optical Acquisition Technique for Supporting Reverse Engineering Process

Cited by 2 publications

References 10 publications

Filling Simple Holes by Using Enhanced Advancing Front Mesh Method (EAFM): Application to a Real Object

Filling Simple Holes by Using Enhanced Advancing Front Mesh Method (EAFM): Application to a Real Object

Evaluation of Handheld Scanners for Automotive Applications

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