本文關(guān)鍵詞： Kinect 母豬 呼吸頻率 動(dòng)態(tài)區(qū)域檢測(cè)算法 DBSCAN密度聚類算法 離散傅里葉變換　出處：《南京農(nóng)業(yè)大學(xué)學(xué)報(bào)》2017年05期 　論文類型：期刊論文

【摘要】：[目的]呼吸頻率是評(píng)價(jià)母豬健康的重要指標(biāo)。針對(duì)目前畜牧業(yè)對(duì)母豬呼吸頻率無(wú)接觸測(cè)定的需求,提出一種基于Kinect的無(wú)接觸測(cè)量算法。[方法]使用Kinect采集梅山母豬側(cè)臥時(shí)的深度圖像。通過(guò)動(dòng)態(tài)區(qū)域檢測(cè)算法確定腹部區(qū)域,采用DBSCAN密度聚類算法得到腹部區(qū)域質(zhì)心進(jìn)行局部深度圖像提取。最后基于腹部區(qū)域局部深度圖像的深度均值,使用離散傅里葉變換得到深度-時(shí)間擬合曲線,通過(guò)極值點(diǎn)確定1次呼吸過(guò)程的周期進(jìn)而求出監(jiān)測(cè)時(shí)間段內(nèi)母豬的呼吸頻次,最后轉(zhuǎn)化成母豬的呼吸頻率(RF)。[結(jié)果]將檢測(cè)結(jié)果與人工計(jì)數(shù)結(jié)果做比較,呼吸頻率正確率為85.3%,該呼吸頻率測(cè)定算法是有效的。[結(jié)論]提出了一種呼吸頻率測(cè)定方法,該方法實(shí)現(xiàn)無(wú)接觸測(cè)量,準(zhǔn)確率高,為定位飼養(yǎng)條件下的梅山母豬呼吸頻率的測(cè)定提供了理論支撐。
[Abstract]:[Objective] Respiratory frequency is an important index to evaluate sows' health. Aiming at the requirement of non-contact measurement of respiratory frequency in sows in animal husbandry at present, a contactless measurement algorithm based on Kinect is proposed. [Methods] the depth images of Meishan sows were collected by Kinect and the abdominal area was determined by dynamic region detection algorithm. DBSCAN density clustering algorithm is used to get the center of mass of the abdominal region to extract the local depth image. Finally, based on the depth mean value of the local depth image of the abdominal region. The depth-time fitting curve was obtained by using discrete Fourier transform (DFT), and the respiration frequency of sows in monitoring period was calculated by determining the cycle of one respiration process by extreme point. Finally, it was transformed into the respiratory frequency of sows. [Results] compared with manual count, the accuracy of respiratory frequency was 85.33.The algorithm was effective. [Conclusion: a method of measuring respiratory frequency is proposed. The method has high accuracy and provides theoretical support for the determination of respiratory frequency of Meishan sows under the condition of location-feeding.
【作者單位】： 南京農(nóng)業(yè)大學(xué)工學(xué)院/江蘇省智能化農(nóng)業(yè)裝備重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家重點(diǎn)研發(fā)計(jì)劃項(xiàng)目(2017YFD0701600) 江蘇省農(nóng)機(jī)三新工程項(xiàng)目(NJ2016-10) 中央高�；究蒲袠I(yè)務(wù)費(fèi)專項(xiàng)資金(KYGX201704)
【分類號(hào)】：S828;TP391.41
【正文快照】： 豬肉是我國(guó)居民重要的消費(fèi)肉類,隨著自動(dòng)化、信息化技術(shù)在養(yǎng)殖領(lǐng)域中的應(yīng)用,傳統(tǒng)的養(yǎng)殖方式將向福利養(yǎng)殖、精細(xì)養(yǎng)殖方式轉(zhuǎn)變。目前的規(guī)�；B(yǎng)殖條件下,呼吸系統(tǒng)疾病在母豬中發(fā)病率高、致死率高。在母豬的產(chǎn)前行為中,其分娩前呼吸速率會(huì)明顯加快,因此母豬的呼吸速率是評(píng)價(jià)母豬

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