This paper presents a novel technique which actually restructures the 3D image profiled by stereovision method. Correspondence between two images is addressed by projecting a 2D fringe pattern. These projected patterns fix their positions to the tested object during two segmented measurements. Finding two matched surface points becomes a problem of searching for two identical phases in the fused data sets. The proposed method is superior to the other methods because of the following reasons:
(1)We successfully designed a 2-D fringe pattern whose the transmittance is sinusoidal and the accuracy of the sinusoidal fringe pattern was of the order of sub-microns.
(2)By using the 2-D fringe pattern, image registration was achieved more easily.
(3)By using the optical spot method, the 3d image profiled was restructured such that the computational time was reduced and the crabwise accuracy was better than that of a single CCD system.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-1127107-213352 |
| Date | 27 November 2007 |
| Creators | Song, Chia-Ming |
| Contributors | Wei-Hung Su, Ming-Chi Chou, Da- Ren Hang |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-1127107-213352 |
| Rights | not_available, Copyright information available at source archive |
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