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光照強度對Kinect v2深度數(shù)據(jù)測量精度的影響
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國家自然科學基金項目(32001412)


Influence Analysis of Light Intensity on Kinect v2 Depth Measurement Accuracy
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    摘要:

    Kinect v2深度測量受光照環(huán)境的影響較大,為定量分析光照因素對Kinect v2測量精度的影響,構建Kinect v2深度測量試驗系統(tǒng),進行了不同距離和不同光照強度下深度測量的正交試驗,得出了深度數(shù)據(jù)中噪聲分布的具體區(qū)域,建立了光照強度影響下深度數(shù)據(jù)修正模型,對深度測量誤差進行了補償。試驗結果表明,深度數(shù)據(jù)中的噪聲干擾主要存在于邊緣和4個邊角部分,且隨著測量距離的增加和光照強度的增大向中心部分逐漸擴散,但是光照強度的影響更為顯著,當光照強度超過6500lx時,深度數(shù)據(jù)的有效率不超過60%。利用光照強度補償模型對深度測量數(shù)據(jù)進行修正后,深度數(shù)據(jù)測量平均相對誤差縮小率為44.55%。在花生冠層信息獲取中進行了應用,驗證了本文數(shù)據(jù)修正模型的有效性。

    Abstract:

    Kinect v2 depth measurement is greatly affected by the lighting environment, in order to quantitatively analyze the influence of lighting factors on Kinect v2 measurement accuracy, a Kinect v2 depth measurement test system was constructed, orthogonal tests of depth measurement at different distances and different lighting intensities were conducted, the specific areas of noise distribution in depth data were derived, a depth data correction model under the influence of lighting intensity was established. The depth measurement error was compensated. The test results showed that the noise interference in the depth data mainly existed in the edges and four corner parts, and gradually spreaded to the center part with the increase of measurement distance and light intensity, but the effect of light intensity was more significant, and the effective rate of depth data did not exceed 60% when the light intensity exceeded 6500lx. The average relative error of depth data measurement was reduced by 44.55% after the correction of depth measurement data by using the light intensity compensation model. In addition, it was applied in peanut canopy information acquisition to verify the effectiveness of the data correction model.

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肖志剛,周猛祥,袁洪波,劉亞東,范才虎,程 曼.光照強度對Kinect v2深度數(shù)據(jù)測量精度的影響[J].農業(yè)機械學報,2021,52(S0):108-117. XIAO Zhigang, ZHOU Mengxiang, YUAN Hongbo, LIU Yadong, FAN Caihu, CHENG Man. Influence Analysis of Light Intensity on Kinect v2 Depth Measurement Accuracy[J]. Transactions of the Chinese Society for Agricultural Machinery,2021,52(S0):108-117.

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  • 收稿日期:2021-07-11
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  • 在線發(fā)布日期: 2021-11-10
  • 出版日期: 2021-12-10