| Author | Suchada Rianmora |
| Call Number | AIT Diss. no.ISE-10-01 |
| Subject(s) | Rapid prototyping
|
| Note | A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Engineering in Design and Manufactu ring Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Dissertation ; no. ISE-10-01 |
| Abstract | Since its inception three decades ago, rapid prototyping (RP) has become one of the five key technologies for rapid product development (RPD) which focuses on managing the integrat ion of tools and technologies to ease the collaboration and to str eamline product development process for the success of a company in a c ompetitive market . RP has been widely used to transform rapidly digital 3D CAD design into a physical prototype layer by layer , and it has been used closely with r everse engineering (RE ) , a technology that creates quickly 3D CAD model from its physical object, to fabricate one object from another. Foreseen benefit of shortening product development time has led to several researches on realign ing and removing redundant steps to enhance th eir integration . However, t echniques, introduced for RE - RP interface, have in common that they all acquire point cloud data from entire object surface . This large point cloud data contains redundancy that must be diminished to ease a subsequent reconstruct ion step. Presented in this dissertation is the development of an adaptive reverse engineering system which acquires data selectively and locally layer by layer according to the complexity of an object, instead of performing data reduction after capturin g the data of the entire object. The key component of this system is selective data acquisition algorithm that has been developed for recommending scanning positions based on the complexity of an object to minimize the number of scans while maintaining the accuracy. Structured light system (SLS) has been applied in this image processing - based algorithm to induce features on an object surface to appear explicitly through phase distortion of the projected bright line; consequently, input images are insensitiv e to the environment. Besides, projective transformation has been applied also to diminish perspective distortion effect in the analysis through transformation of deformed bright lines on side views to be contour segments on top view. Each recommendation i s sent to an acquisition device to obtain contour data points. |
| Year | 2010 |
| Corresponding Series Added Entry | Asian Institute of Technology. Dissertation ; no. ISE-10-01 |
| Type | Dissertation |
| School | School of Engineering and Technology (SET) |
| Department | Department of Industrial Systems Engineering (DISE) |
| Academic Program/FoS | Industrial Systems Engineering (ISE) |
| Chairperson(s) | Pisut Koomsap; |
| Examination Committee(s) | Manukid Parnichkun ;Dailey, Matthew; |
| Scholarship Donor(s) | Royal Thai Government Fellowship; |
| Degree | Thesis (Ph. D.) - Asian Institute of Technology, 2010 |