A generalized regularized phase tracker for demodulation of a single fringe pattern
The regularized phase tracker (RPT) is one of the most powerful approaches for demodulation of a single fringe pattern. However, two disadvantages limit the applications of the RPT in practice. One is the necessity of a normalized fringe pattern as input and the other is the sensitivity to critical...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2013
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| Online Access: | https://hdl.handle.net/10356/95217 http://hdl.handle.net/10220/9308 |
| _version_ | 1811691678134697984 |
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| author | Kai, Li Qian, Kemao |
| author2 | School of Computer Engineering |
| author_facet | School of Computer Engineering Kai, Li Qian, Kemao |
| author_sort | Kai, Li |
| collection | NTU |
| description | The regularized phase tracker (RPT) is one of the most powerful approaches for demodulation of a single fringe pattern. However, two disadvantages limit the applications of the RPT in practice. One is the necessity of a normalized fringe pattern as input and the other is the sensitivity to critical points. To overcome these two disadvantages, a generalized regularized phase tracker (GRPT) is presented. The GRPT is characterized by two novel improvements. First, a general local fringe model that includes a linear background, a linear modulation and a quadratic phase is adopted in the proposed enhanced cost function. Second, the number of iterations in the optimization process is proposed as a comprehensive measure of fringe quality and used to guide the demodulation path. With these two improvements, the GRPT can directly demodulate a single fringe pattern without any pre-processing and post-processing and successfully get rid of the problem of the sensitivity to critical points. Simulation and experimental results are presented to demonstrate the effectiveness and robustness of the GRPT. |
| first_indexed | 2024-10-01T06:23:42Z |
| format | Journal Article |
| id | ntu-10356/95217 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:23:42Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/952172020-05-28T07:17:47Z A generalized regularized phase tracker for demodulation of a single fringe pattern Kai, Li Qian, Kemao School of Computer Engineering DRNTU::Science::Physics::Optics and light The regularized phase tracker (RPT) is one of the most powerful approaches for demodulation of a single fringe pattern. However, two disadvantages limit the applications of the RPT in practice. One is the necessity of a normalized fringe pattern as input and the other is the sensitivity to critical points. To overcome these two disadvantages, a generalized regularized phase tracker (GRPT) is presented. The GRPT is characterized by two novel improvements. First, a general local fringe model that includes a linear background, a linear modulation and a quadratic phase is adopted in the proposed enhanced cost function. Second, the number of iterations in the optimization process is proposed as a comprehensive measure of fringe quality and used to guide the demodulation path. With these two improvements, the GRPT can directly demodulate a single fringe pattern without any pre-processing and post-processing and successfully get rid of the problem of the sensitivity to critical points. Simulation and experimental results are presented to demonstrate the effectiveness and robustness of the GRPT. Published version 2013-02-28T07:07:15Z 2019-12-06T19:10:33Z 2013-02-28T07:07:15Z 2019-12-06T19:10:33Z 2012 2012 Journal Article Kai, L., & Qian K. (2012). A generalized regularized phase tracker for demodulation of a single fringe pattern. Optics Express, 20(11), 12579-12592. 1094-4087 https://hdl.handle.net/10356/95217 http://hdl.handle.net/10220/9308 10.1364/OE.20.012579 en Optics express © 2012 Optical Society of America. This paper was published in Optics Express and is made available as an electronic reprint (preprint) with permission of Optical Society of America. The paper can be found at the following official DOI: [http://dx.doi.org/10.1364/OE.20.012579]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. application/pdf |
| spellingShingle | DRNTU::Science::Physics::Optics and light Kai, Li Qian, Kemao A generalized regularized phase tracker for demodulation of a single fringe pattern |
| title | A generalized regularized phase tracker for demodulation of a single fringe pattern |
| title_full | A generalized regularized phase tracker for demodulation of a single fringe pattern |
| title_fullStr | A generalized regularized phase tracker for demodulation of a single fringe pattern |
| title_full_unstemmed | A generalized regularized phase tracker for demodulation of a single fringe pattern |
| title_short | A generalized regularized phase tracker for demodulation of a single fringe pattern |
| title_sort | generalized regularized phase tracker for demodulation of a single fringe pattern |
| topic | DRNTU::Science::Physics::Optics and light |
| url | https://hdl.handle.net/10356/95217 http://hdl.handle.net/10220/9308 |
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