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1.发明申请METHOD FOR RECOGNIZING MARKERS USING DYNAMIC THRESHOLD AND LEARNING SYSTEM BASED ON AUGMENTED REALITY USING MARKER RECOGNITION 有权使用标记识别使用基于现实的动态阈值和学习系统来识别标记的方法公开(公告)号：US20100111405A1
公开(公告)日：2010-05-06
申请号：US12496275
申请日：2009-07-01
申请人： Su Woong LEE , Junsuk Lee , Yong Hun Kim , Seokjae Lee , Sangwon Um , Shihua Ming
发明人： Su Woong LEE , Junsuk Lee , Yong Hun Kim , Seokjae Lee , Sangwon Um , Shihua Ming
CPC分类号： G06K9/38 , G06K9/2054
摘要： A method for recognizing markers printed on a learning material, includes sampling an image of the learning material; grouping the sampled image of pixels into a first image group and a second image group based on a threshold; and calculating medians of the first image group and the second image group to update the threshold with a first average value of the calculated medians. Further, the method for recognizing markers printed on the learning material includes repeating the above until a difference between a previous threshold and an updated threshold is equal to or smaller than a reference value; binarizing an image captured by a camera based on the updated threshold; and detecting the markers based on the binary image.
摘要翻译： 一种用于识别打印在学习材料上的标记的方法，包括对学习材料的图像进行采样; 基于阈值将像素的采样图像分组为第一图像组和第二图像组; 以及计算所述第一图像组和所述第二图像组的中心，以用所计算的中值的第一平均值来更新所述阈值。 此外，用于识别打印在学习材料上的标记的方法包括重复上述操作，直到先前阈值和更新阈值之间的差等于或小于参考值; 基于更新的阈值对由相机拍摄的图像进行二值化; 以及基于二值图像检测标记。
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2.发明授权Method for recognizing markers using dynamic threshold and learning system based on augmented reality using marker recognition 有权基于使用标记识别的增强现实使用动态阈值和学习系统识别标记的方法公开(公告)号：US08682095B2
公开(公告)日：2014-03-25
申请号：US12496275
申请日：2009-07-01
申请人： Su Woong Lee , Junsuk Lee , Yong Hun Kim , Seokjae Lee , Sangwon Um , Shihua Ming
发明人： Su Woong Lee , Junsuk Lee , Yong Hun Kim , Seokjae Lee , Sangwon Um , Shihua Ming
IPC分类号： G06K9/38
CPC分类号： G06K9/38 , G06K9/2054
摘要： A method for recognizing markers printed on a learning material, includes sampling an image of the learning material; grouping the sampled image of pixels into a first image group and a second image group based on a threshold; and calculating medians of the first image group and the second image group to update the threshold with a first average value of the calculated medians. Further, the method for recognizing markers printed on the learning material includes repeating the above until a difference between a previous threshold and an updated threshold is equal to or smaller than a reference value; binarizing an image captured by a camera based on the updated threshold; and detecting the markers based on the binary image.
摘要翻译： 一种用于识别打印在学习材料上的标记的方法，包括对学习材料的图像进行采样; 基于阈值将像素的采样图像分组为第一图像组和第二图像组; 以及计算所述第一图像组和所述第二图像组的中心，以用所计算的中值的第一平均值来更新所述阈值。 此外，用于识别打印在学习材料上的标记的方法包括重复上述操作，直到先前阈值和更新阈值之间的差等于或小于参考值; 基于更新的阈值对由相机拍摄的图像进行二值化; 以及基于二值图像检测标记。
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