Microstructure measurement of digital holography
Miniaturization is a development trend of electronics, machinery and information systems, while micro structure brought a large amount of new development for industrial and research applications, whereas, slow measuring speed and two-dimensional results of traditional micro measurement could not mee...
| Main Authors: | , , , , , , |
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| Format: | Conference Paper |
| Language: | English |
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2018
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| Online Access: | https://hdl.handle.net/10356/88785 http://hdl.handle.net/10220/46971 |
| _version_ | 1826122344010088448 |
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| author | Li, Jicheng Tian, Ailing Wang, Hongjun Zhu, Xueliang Wang, Chunhui Liu, Bingcai Asundi, Anand |
| author2 | Tian, Ailing |
| author_facet | Tian, Ailing Li, Jicheng Tian, Ailing Wang, Hongjun Zhu, Xueliang Wang, Chunhui Liu, Bingcai Asundi, Anand |
| author_sort | Li, Jicheng |
| collection | NTU |
| description | Miniaturization is a development trend of electronics, machinery and information systems, while micro structure brought a large amount of new development for industrial and research applications, whereas, slow measuring speed and two-dimensional results of traditional micro measurement could not meet our needs, it’s urgent to find a matching testing techniques with more sensitivity, more effectiveness and better to have a real-time three-dimensional display. Digital holography applied to the measurement of micro structure, it made up for the lacking of traditional micro structure measure systems of too much time consuming, poor immunity, easily damaging samples with its simple structure, high accuracy, non contact features and three-dimensional reproduction. This paper analyzed the key factors of digital holographic recording and reproducing process.In order to solve the low quality of holograms captured by traditional recording system, holograms and pre-processing algorithm was combined for real-time, by observing the holograms and delicate adjusting the system, to ensure that the collected holograms with full use of CCD width while convenient for subsequent processing. In the processing of reproduction,the influence of spectrum choice, reconstruction wavelength and algorithms and unwrapping algorithm was been studied, and finally obtained an accurate three-dimensional topography of the object. The improved rerecording system and reconstruction algorithm mentioned above solved the low holography quality, much noise and not clear shortcomings of the reconstructed image. Experiment on a raster, compared with traditional system and algorithm results, results showed that the recording system and determine algorithms can reproduce the three-dimensional topography of the object with high precision and has a broader applicability. |
| first_indexed | 2024-10-01T05:46:57Z |
| format | Conference Paper |
| id | ntu-10356/88785 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:46:57Z |
| publishDate | 2018 |
| record_format | dspace |
| spelling | ntu-10356/887852023-03-04T17:07:40Z Microstructure measurement of digital holography Li, Jicheng Tian, Ailing Wang, Hongjun Zhu, Xueliang Wang, Chunhui Liu, Bingcai Asundi, Anand Tian, Ailing Asundi, Anand Liu, Weiguo Zhang, Chunmin School of Mechanical and Aerospace Engineering Proceedings of SPIE - The International Conference on Photonics and Optical Engineering (icPOE 2014) DRNTU::Engineering::Mechanical engineering Recording Light Path Micro-structure Measurement Miniaturization is a development trend of electronics, machinery and information systems, while micro structure brought a large amount of new development for industrial and research applications, whereas, slow measuring speed and two-dimensional results of traditional micro measurement could not meet our needs, it’s urgent to find a matching testing techniques with more sensitivity, more effectiveness and better to have a real-time three-dimensional display. Digital holography applied to the measurement of micro structure, it made up for the lacking of traditional micro structure measure systems of too much time consuming, poor immunity, easily damaging samples with its simple structure, high accuracy, non contact features and three-dimensional reproduction. This paper analyzed the key factors of digital holographic recording and reproducing process.In order to solve the low quality of holograms captured by traditional recording system, holograms and pre-processing algorithm was combined for real-time, by observing the holograms and delicate adjusting the system, to ensure that the collected holograms with full use of CCD width while convenient for subsequent processing. In the processing of reproduction,the influence of spectrum choice, reconstruction wavelength and algorithms and unwrapping algorithm was been studied, and finally obtained an accurate three-dimensional topography of the object. The improved rerecording system and reconstruction algorithm mentioned above solved the low holography quality, much noise and not clear shortcomings of the reconstructed image. Experiment on a raster, compared with traditional system and algorithm results, results showed that the recording system and determine algorithms can reproduce the three-dimensional topography of the object with high precision and has a broader applicability. Published version 2018-12-14T03:26:57Z 2019-12-06T17:10:52Z 2018-12-14T03:26:57Z 2019-12-06T17:10:52Z 2015 Conference Paper Li, J., Tian, A., Wang, H., Zhu, X., Wang, C., Liu, B., & Asundi, A. (2015). Microstructure measurement of digital holography. Proceedings of SPIE - The International Conference on Photonics and Optical Engineering (icPOE 2014), 9449, 94493O-. doi:10.1117/12.2080511 https://hdl.handle.net/10356/88785 http://hdl.handle.net/10220/46971 10.1117/12.2080511 en © 2015 Society of Photo-optical Instrumentation Engineers (SPIE). This paper was published in Proceedings of SPIE - The International Conference on Photonics and Optical Engineering (icPOE 2014) and is made available as an electronic reprint (preprint) with permission of Society of Photo-optical Instrumentation Engineers (SPIE). The published version is available at: [http://dx.doi.org/10.1117/12.2080511]. 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. 9 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Mechanical engineering Recording Light Path Micro-structure Measurement Li, Jicheng Tian, Ailing Wang, Hongjun Zhu, Xueliang Wang, Chunhui Liu, Bingcai Asundi, Anand Microstructure measurement of digital holography |
| title | Microstructure measurement of digital holography |
| title_full | Microstructure measurement of digital holography |
| title_fullStr | Microstructure measurement of digital holography |
| title_full_unstemmed | Microstructure measurement of digital holography |
| title_short | Microstructure measurement of digital holography |
| title_sort | microstructure measurement of digital holography |
| topic | DRNTU::Engineering::Mechanical engineering Recording Light Path Micro-structure Measurement |
| url | https://hdl.handle.net/10356/88785 http://hdl.handle.net/10220/46971 |
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