This paper presents an experimental technique for measuring displacement distribution from an image of repeated patterns and JPEG compressed images. The measurement accuracy of the developed method is insusceptible to the degree of JPEG compression because only lower spatial frequency components of the repeated pattern are used to calculate the displacement distribution, and high spatial frequency components have high priority to cut-off according to the JPEG compression algorithm. The insensitivity to the JPEG compression was confirmed by a displacement measurement using JPEG images of various compression ratios or image qualities. We found that by using the highest quality JPEG image, the accuracy of displacement measurement could research 1/1000 of the repeated pattern pitch, as same the uncompressed BMP images. In addition, displacement with accuracy of 1/500 pitch could be measured from a compressed JPEG image of which the file size was 1/50 of that of the BMP image. This technique is useful for measurement using a high-speed camera with high-resolution digital images for a long-term or wireless image transfer.
Published in |
Optics (Volume 4, Issue 3-1)
This article belongs to the Special Issue Optical Techniques for Deformation, Structure and Shape Evaluation |
DOI | 10.11648/j.optics.s.2015040301.13 |
Page(s) | 9-13 |
Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
Copyright |
Copyright © The Author(s), 2015. Published by Science Publishing Group |
Deformation Measurement, Sampling Moiré Method, Repeated Pattern, Compressed image, Phase Analysis
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APA Style
Shien Ri, Satoshi Hayashi, Hiroshi Tsuda, Shinji Ogihara. (2015). Full-Field Displacement Measurement Technique by Using Repeated Patterns and JPEG Compressed Images. Optics, 4(3-1), 9-13. https://doi.org/10.11648/j.optics.s.2015040301.13
ACS Style
Shien Ri; Satoshi Hayashi; Hiroshi Tsuda; Shinji Ogihara. Full-Field Displacement Measurement Technique by Using Repeated Patterns and JPEG Compressed Images. Optics. 2015, 4(3-1), 9-13. doi: 10.11648/j.optics.s.2015040301.13
AMA Style
Shien Ri, Satoshi Hayashi, Hiroshi Tsuda, Shinji Ogihara. Full-Field Displacement Measurement Technique by Using Repeated Patterns and JPEG Compressed Images. Optics. 2015;4(3-1):9-13. doi: 10.11648/j.optics.s.2015040301.13
@article{10.11648/j.optics.s.2015040301.13, author = {Shien Ri and Satoshi Hayashi and Hiroshi Tsuda and Shinji Ogihara}, title = {Full-Field Displacement Measurement Technique by Using Repeated Patterns and JPEG Compressed Images}, journal = {Optics}, volume = {4}, number = {3-1}, pages = {9-13}, doi = {10.11648/j.optics.s.2015040301.13}, url = {https://doi.org/10.11648/j.optics.s.2015040301.13}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.optics.s.2015040301.13}, abstract = {This paper presents an experimental technique for measuring displacement distribution from an image of repeated patterns and JPEG compressed images. The measurement accuracy of the developed method is insusceptible to the degree of JPEG compression because only lower spatial frequency components of the repeated pattern are used to calculate the displacement distribution, and high spatial frequency components have high priority to cut-off according to the JPEG compression algorithm. The insensitivity to the JPEG compression was confirmed by a displacement measurement using JPEG images of various compression ratios or image qualities. We found that by using the highest quality JPEG image, the accuracy of displacement measurement could research 1/1000 of the repeated pattern pitch, as same the uncompressed BMP images. In addition, displacement with accuracy of 1/500 pitch could be measured from a compressed JPEG image of which the file size was 1/50 of that of the BMP image. This technique is useful for measurement using a high-speed camera with high-resolution digital images for a long-term or wireless image transfer.}, year = {2015} }
TY - JOUR T1 - Full-Field Displacement Measurement Technique by Using Repeated Patterns and JPEG Compressed Images AU - Shien Ri AU - Satoshi Hayashi AU - Hiroshi Tsuda AU - Shinji Ogihara Y1 - 2015/07/06 PY - 2015 N1 - https://doi.org/10.11648/j.optics.s.2015040301.13 DO - 10.11648/j.optics.s.2015040301.13 T2 - Optics JF - Optics JO - Optics SP - 9 EP - 13 PB - Science Publishing Group SN - 2328-7810 UR - https://doi.org/10.11648/j.optics.s.2015040301.13 AB - This paper presents an experimental technique for measuring displacement distribution from an image of repeated patterns and JPEG compressed images. The measurement accuracy of the developed method is insusceptible to the degree of JPEG compression because only lower spatial frequency components of the repeated pattern are used to calculate the displacement distribution, and high spatial frequency components have high priority to cut-off according to the JPEG compression algorithm. The insensitivity to the JPEG compression was confirmed by a displacement measurement using JPEG images of various compression ratios or image qualities. We found that by using the highest quality JPEG image, the accuracy of displacement measurement could research 1/1000 of the repeated pattern pitch, as same the uncompressed BMP images. In addition, displacement with accuracy of 1/500 pitch could be measured from a compressed JPEG image of which the file size was 1/50 of that of the BMP image. This technique is useful for measurement using a high-speed camera with high-resolution digital images for a long-term or wireless image transfer. VL - 4 IS - 3-1 ER -