Infrared and Laser Engineering, Volume. 51, Issue 8, 20210625(2022)

High speed reconstruction system for indoor environments based on an adaptive interpolation filter

Jinyue Liu1, Xuzhe Ma1, Yuemeng Cui2, Luming Xue1, and Tiejun Li1、*
Author Affiliations
  • 1School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, China
  • 2Tianjin Jinhang Institute of Technical Physics, Tianjin 300308, China
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    In view of light interference during indoor environment reconstruction, and phase value jump problem that occurred from the disaccord between the wrapped phase cycle and Gray-Code class cycle in phase unwrapping because of Gamma transformation in process of fringe projection and phase shift, an anti-global illumination reconstruction method based on adaptive interpolation filtering was proposed. The high speed projection method was used to reduce the influence of light source interference. Firstly, the binary defocused phase shift fringes and high frequency gray code fringes were projected onto the surface of the environment to be measured. Hilbert transform and high frequency decoding were used to solve the unwrapping phase. Secondly, the adaptive interpolation filtering algorithm was adopted to repair the unwrapping phase containing phase jumps. Finally, the morphological features of the environment to be measured were restored. The types of jump points were analyzed, and the interpolation filtering was selectively carried out to eliminate the phases jump and avoid the generation of repeated phase. Compared with other global filtering methods, our method can improve the efficiency by 90% under the condition of higher accuracy, and achieve the goal of high-speed and high-quality indoor environment reconstruction.

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    Jinyue Liu, Xuzhe Ma, Yuemeng Cui, Luming Xue, Tiejun Li. High speed reconstruction system for indoor environments based on an adaptive interpolation filter[J]. Infrared and Laser Engineering, 2022, 51(8): 20210625

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    Paper Information

    Category: Phtotoelectric measurement

    Received: Aug. 30, 2021

    Accepted: --

    Published Online: Jan. 9, 2023

    The Author Email:

    DOI:10.3788/IRLA20210625

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