Robust inspection and ROI adaptation algorithm for NDT swage torque test process | |
| Author | Nara Srieiang |
| Call Number | AIT Thesis no.ISE-10-49 |
| Subject(s) | Computer vision Image processing Hard disks (Computer science) |
| Note | A thesis submitted in partial fulfillment of the re quirements for the degree of Master of Engineering in Mechatronics, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. ISE-10-49 |
| Abstract | Head Stack Assembly (HSA) is the major cost of Hard disk drive. In HSA production, Swage Torque testing is one of the dest ructive processes that can destroy the HSA, so that the Non-Destructive Testin g (NDT) concept for swage torque testing was proposed. NDT HSA swage torque i s mainly relied on vision inspection to measure an alignment of read-write he ad. In fact that lighting and environment are difficult to control in mass produc tion factory and improper control leads to degradation of an output image, so that the robust vision inspection algorithm is required to handle such ima ge degradation. This thesis presents the robust vision inspection a lgorithm that is used to inspect the alignment of read-write head during NDT swage t orque testing process. The key features of an object of interest are examined. In addition, a technique for computing optimal region of interest (ROI), which e nhances performance of the inspection algorithm, is examined. Finally, optimal runtime and development environmen t is selected. The robust vision inspection algorithm, which is relied on the identified key features of the object of interest, is developed to process the deg raded images. The ROI adaptation algorithm is developed to improve perfor mance of the inspection algorithm. |
| Year | 2010 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. ISE-10-49 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Industrial Systems Engineering (DISE) |
| Academic Program/FoS | Industrial Systems Engineering (ISE) |
| Chairperson(s) | Afzulpurkar, Nitin V. |
| Examination Committee(s) | Dailey, Mathew N.;Manukid Parnichkun;Rattagarn Vardcheeranon |
| Scholarship Donor(s) | Western Digital;NECTEC;Asian Institute of Technology Fellowship |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 2010 |