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田間果蔬采摘機(jī)器人視覺傳感器設(shè)計與試驗
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Experiments of Vision Sensor for Harvest Robots in Field
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    摘要:

    針對田間果蔬采摘機(jī)器視覺識別與定位的需求,設(shè)計嵌入式采摘視覺傳感器,內(nèi)嵌130萬像素CMOS圖像傳感器和開放性MCU,配置亮度處理模塊和室外光自適應(yīng)控制專家?guī)欤鉀Q室外光變化影響視覺檢測的難題。用主從傳感器構(gòu)造雙目視覺系統(tǒng),配置圖像分割和測距算法,進(jìn)行采摘目標(biāo)的識別與定位。經(jīng)試驗和測試,在采摘臂長范圍內(nèi),對成熟西紅柿的識別有效率為96%,位置誤差±

    Abstract:

    12 mm。Aimed at the demand of recognition and location in computer vision for harvest robots, the embedded vision sensor plat was designed which contained 1.3 million pixel CMOS image chip, MCU with open structure, and brightness adapting module controlled by the expert database to solve the problem of outdoor light changing which affected the visual inspection. Two sensors were used to construct binocular vision sensor system which was coordinated by master-slave frame. The algorithm of image segmentation and distance measurement was applied to get the location data of harvesting object. The binocular vision sensor system ran smoothly and reliably. The performance test results showed that the success ratio of identifying is 96% and the measure error is within ±12mm when the system took ripe tomato as an measuring object and the measure distance limits was in machine pick-arm range.

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李理,殷國富,劉柯岐.田間果蔬采摘機(jī)器人視覺傳感器設(shè)計與試驗[J].農(nóng)業(yè)機(jī)械學(xué)報,2010,41(5):152-157. Experiments of Vision Sensor for Harvest Robots in Field[J]. Transactions of the Chinese Society for Agricultural Machinery,2010,41(5):152-157.

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