Investigation on phase unwrapping algorithms in digital holography - 文章详情页

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Phase　unwrapping　is　a　key　step　of　three-dimensional　display　in　digital　holographic　microscopy　(DHM).　On　the　basis　of　the　framework　of　Lp-norm,　the　unified　mathematic　model　of　two-dimensional　phase　unwrapping　is　studied.　A　wrapped　phase　map　of　DHM　is　analyzed　with　several　phase　unwrapping　methods.　The　results　show　that　the　L0-norm　algorithm　performed　best　in　efficiency,　but　got　wrong　result　because　of　too　much　noise,　the　L1-norm　algorithm　could　achieve　an　better　resolving,　but　the　most　long　time　consuming,　the　Lp-norm　algorithm　used　much　iterative,　but　also　resulted　with　aberrations　and　the　efficiency　was　rather　low,　the　least-squares　algorithm　and　the　weighted　least-squares　algorithm　could　obtain　better　optimal　resolving　and　better　efficiency.　The　two　algorithms　are　acceptable　in　DHM.

关键词：

Computerized tomography Efficiency Iterative methods Holography Microscopic examination Three dimensional displays Holographic displays

作者机构：

[ 1 ] [Zhang, Yizhuo]College of Applied Science, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Wang, Dayong]College of Applied Science, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Zhao, Jie]College of Applied Science, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Wan, Yuhong]College of Applied Science, Beijing University of Technology, Beijing 100124, China
[ 5 ] [Jiang, Zhuqing]College of Applied Science, Beijing University of Technology, Beijing 100124, China
[ 6 ] [Tao, Shiquan]College of Applied Science, Beijing University of Technology, Beijing 100124, China

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talent76@bjut.edu.cn

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