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Positioning Study of the Robot Vision based on Geometry
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作者 Jun SUN 《International Journal of Technology Management》 2015年第1期23-25,共3页
The robot' s eyes through the background difference method were used to find broke into the visual range of a moving object and track and monitor the moving object. On the basis of geometry and according to the dista... The robot' s eyes through the background difference method were used to find broke into the visual range of a moving object and track and monitor the moving object. On the basis of geometry and according to the distance and deflection angle of the robot eyes positioning, the objects were captured and tracked by robots eyes. Geometry method precision was low, but simple calculation processing was quick. Thus, it can effectively meet the robot eyes preliminary positioning of the fast moving target. 展开更多
关键词 Moving Object Tracking Capture Geometric Positioning
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牙鲆胚胎阶段pax6、tbx3和rx1基因的表达 被引量:1
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作者 陈洁 鲍宝龙 《上海海洋大学学报》 CAS CSCD 北大核心 2015年第3期321-325,共5页
在眼睛发育过程中,Paired Box 6(pax6)和T-Box Transcription Factor 3(tbx3)界定了视网膜发生区域,Retinal Homeobox Protein 1(rx1)确定了视杯的形成范围。本研究调查了pax6、tbx3和rx1基因是否在左右眼睛发生区域的表达范围存在差异... 在眼睛发育过程中,Paired Box 6(pax6)和T-Box Transcription Factor 3(tbx3)界定了视网膜发生区域,Retinal Homeobox Protein 1(rx1)确定了视杯的形成范围。本研究调查了pax6、tbx3和rx1基因是否在左右眼睛发生区域的表达范围存在差异。荧光定量PCR显示,牙鲆pax6、tbx3和rx1基因从受精后20 h开始表达。RNA整体原位杂交检测发现pax6基因在牙鲆胚胎左右眼睛发生区域表达,左侧表达范围较右侧略大,同时pax6在前脑以及神经管处也有表达;tbx3和rx1基因在牙鲆胚胎左右眼睛发生区域表达,左右侧表达范围无明显可见差异。提示我们,胚胎阶段眼睛发育过程中pax6在左右视网膜的表达范围存在的差异,是否可能导致牙鲆仔、稚鱼左右眼眶上和眶下成纤维细胞前体数量上存在差异,并最终导致变态阶段甲状腺激素诱导下的眼睛移动? 展开更多
关键词 牙鲆 眼睛发育 PAX6基因 tbx3基因 rx1基因 眼睛移动
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