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基于虛擬儀器技術(shù)的田間多光譜視覺系統(tǒng)設(shè)計
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    摘要:

    設(shè)計了一套田間多光譜虛擬儀器視覺系統(tǒng)。系統(tǒng)使用高分辨率的多光譜(近紅外、紅光和綠光)相機MS3100,拍攝作物生長期的多光譜圖像,采用Labview及其視覺模塊編寫圖像的采集、處理和分析程序,實時測取作物各個光譜波段的反射率。田間試驗表明,該系統(tǒng)可以準(zhǔn)確地對圖像中的作物進行識別,求取作物的光譜反射特征,在2.4m×1.8m的視窗內(nèi),每組圖像的采集和處理時間平均為311ms,滿足田間精準(zhǔn)變量投入的在線工作要求。

    Abstract:

    An in-field multi-spectral computer vision system was developed using virtual instrument for capturing crop growth status precisely in real time to supervise a variable rate application. The system used a high resolution multi-spectral camera (MS3100) of acquiring excellent multi-spectral images (near-infrared, red and green) to shoot crop images. Labview and its vision development module were adopted to do image acquisition, processing and analysis programs for measuring the crop reflectance of red, green and near-infrared. The test trail of system shows that it can analyze the crop multi-spectral images and compute the spectral characteristics correctly. The average running time of acquiring and processing images of each group (NIR, R and G) were 311ms in the range of 2.4m×1.8m. The running speed of system can satisfy the in-field on-line job of the variable precision application.

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齊龍,馬旭,周海波.基于虛擬儀器技術(shù)的田間多光譜視覺系統(tǒng)設(shè)計[J].農(nóng)業(yè)機械學(xué)報,2009,40(1):157-161.[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(1):157-161.

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