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疫苗毒株胚蛋成活性檢測方法研究
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國家自然科學(xué)基金項(xiàng)目(51405512)和山東省重點(diǎn)研發(fā)計(jì)劃項(xiàng)目(2016GNC112015)


Experiment on Detection Method of Vaccine Strain Activity
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    摘要:

    針對人工光照法在生物疫苗毒株(胚蛋)成活性檢測中,存在勞動(dòng)強(qiáng)度大、效率低,、準(zhǔn)確性差的缺點(diǎn),提出了一種仿生胚蛋成活性圖像無損檢測方法,。針對以往研究中胚蛋圖像上下灰度不一、胚蛋蛋殼質(zhì)量不一等因素影響胚蛋血脈提取的問題,,提出了一種基于最小類內(nèi)指數(shù)方差的自適應(yīng)閾值圖像處理方法。通過對去噪后的胚蛋圖像進(jìn)行圖像邊緣檢測及數(shù)學(xué)形態(tài)學(xué)處理,,準(zhǔn)確構(gòu)建了成活胚蛋主血脈二值形態(tài),,通過計(jì)算胚蛋內(nèi)主血脈二值面積百分比判定胚蛋成活性。對胚蛋圖像進(jìn)行識(shí)別實(shí)驗(yàn),,結(jié)果表明,,該系統(tǒng)識(shí)別一枚胚蛋用時(shí)0.093s,胚蛋活性判定準(zhǔn)確率為100%,,可滿足滅活疫苗,、凍干疫苗生產(chǎn)的活性準(zhǔn)確率要求。

    Abstract:

    Given the high labor intensity, low efficiency and poor accuracy of the artificial lighting method in the detection of biological vaccine strain, embryo egg, activity, a bionic embryonic egg activity image nondestructive detection system was designed. Considering the blood vessel extraction was affected by factors such as the uneven gray level of the embryo egg image and the uneven eggshell quality of the embryo egg, an adaptive threshold method based on the minimum class inner exponential variance was proposed to segment the image and extract the blood. Arterial inclusion of egg embryo imaging was a critical factor for the accuracy of the fertility detection. By analyzing the development process and lighting experiment of egg embryo, it was found that the method shooting light at the bigger part and imaging from the side was an optimal way for the egg embryo imaging. In embryo egg image acquisition, the brightness of the image was varied under the influence of the camera environment and the image acquisition system. In view of this problem, the V component was used to realize automatic image classification, and then the image process was performed respectively. The main blood vessel of the active embryo egg was constructed accurately through the image edge detection and mathematical morphology process of the denoised embryo egg image, and the embryo egg activity was determined by calculating the two values area percentage and area perimeter ratio of the main blood vessel in the embryo egg. Experimental results showed that the system can recognize one embryo egg with 0.093s, and the detection accuracy of embryo egg activity was 100%. This system can meet the accuracy requirement of the production of inactivated vaccine and freeze-dried vaccine.

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黃超,劉衍聰.疫苗毒株胚蛋成活性檢測方法研究[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2017,48(10):300-306. HUANG Chao, LIU Yancong. Experiment on Detection Method of Vaccine Strain Activity[J]. Transactions of the Chinese Society for Agricultural Machinery,2017,48(10):300-306.

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  • 收稿日期:2017-06-03
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  • 在線發(fā)布日期: 2017-10-10
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