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High-speed high-accuracy three-dimensional shape measurement using digital binary defocusing method versus sinusoidal method
| Content Provider | Semantic Scholar |
|---|---|
| Author | Hyun, Jae-Sang Li, Beiwen Zhang, Song |
| Copyright Year | 2017 |
| Abstract | Abstract. This paper presents our research findings on high-speed high-accuracy three-dimensional shape measurement using digital light processing (DLP) technologies. In particular, we compare two different sinusoidal fringe generation techniques using the DLP projection devices: direct projection of computer-generated 8-bit sinusoidal patterns (a.k.a., the sinusoidal method), and the creation of sinusoidal patterns by defocusing binary patterns (a.k.a., the binary defocusing method). This paper mainly examines their performance on high-accuracy measurement applications under precisely controlled settings. Two different projection systems were tested in this study: a commercially available inexpensive projector and the DLP development kit. Experimental results demonstrated that the binary defocusing method always outperforms the sinusoidal method if a sufficient number of phase-shifted fringe patterns can be used. |
| File Format | PDF HTM / HTML |
| DOI | 10.1117/1.OE.56.7.074102 |
| Alternate Webpage(s) | https://engineering.purdue.edu/ZhangLab/publications/papers/2017-oe-bincompare.pdf |
| Alternate Webpage(s) | https://doi.org/10.1117/1.OE.56.7.074102 |
| Volume Number | 56 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
