字符识别系统的性能在很大程度上依赖于所选取的字符特征.提出了一种基于特征行必要-充分性匹配的OCR(optical character recognition)方法.该方法使用字符模板的特征行集,通过对待识字符位图进行必要性和充分性双向匹配来识别字符.并...字符识别系统的性能在很大程度上依赖于所选取的字符特征.提出了一种基于特征行必要-充分性匹配的OCR(optical character recognition)方法.该方法使用字符模板的特征行集,通过对待识字符位图进行必要性和充分性双向匹配来识别字符.并采用基线对齐归一化方法在特征匹配时准确定位,使识别率和识别速度都较为理想.同时,对字符位图特征行的交互选择、测试和调整等方法做了详细介绍.另外,还提出了字符骨架与位图重叠显示的方案,有效地提高了对识别结果校对的速度.最后,通过测试和比较,对识别效率进行了分析.展开更多
文中介绍了一种易于实现的快速实时手势识别算法。研究借助计算机视觉库OpenCV和微软Visual Studio 2008搭建开发平台,通过视频方式实时提取人的手势信息,进而经二值化、膨胀腐蚀、轮廓提取、区域分割等图像处理流程甄别出当前手势中张...文中介绍了一种易于实现的快速实时手势识别算法。研究借助计算机视觉库OpenCV和微软Visual Studio 2008搭建开发平台,通过视频方式实时提取人的手势信息,进而经二值化、膨胀腐蚀、轮廓提取、区域分割等图像处理流程甄别出当前手势中张开的手指,识别手势特征,提取出人手所包含的特定信息,并最终将手势信息作为控制仪器设备的操作指令,控制相关设备仪器。展开更多
In this paper an efficient framework for the creation of 3D digital contentwith point sampled ge-ometry is proposed. A new hierarchy of shape representations with three levelsis adopted in this framework. Based on thi...In this paper an efficient framework for the creation of 3D digital contentwith point sampled ge-ometry is proposed. A new hierarchy of shape representations with three levelsis adopted in this framework. Based on this new hierarchical shape representation, the proposedframework offers concise integration of various volumetric- and surface-based modeling techniques,such as Boolean operation, offset, blending, free-form defor-mation, parameterization and texturemapping, and thus simplifies the complete modeling process. Previously to achieve the same goal,several separated algorithms had to be used independently with inconsistent volumetric and surfacerepresentations of the free-form object. Both graphics and industrial applications are presented todemonstrate the effectiveness and efficiency of the proposed framework.展开更多
文摘字符识别系统的性能在很大程度上依赖于所选取的字符特征.提出了一种基于特征行必要-充分性匹配的OCR(optical character recognition)方法.该方法使用字符模板的特征行集,通过对待识字符位图进行必要性和充分性双向匹配来识别字符.并采用基线对齐归一化方法在特征匹配时准确定位,使识别率和识别速度都较为理想.同时,对字符位图特征行的交互选择、测试和调整等方法做了详细介绍.另外,还提出了字符骨架与位图重叠显示的方案,有效地提高了对识别结果校对的速度.最后,通过测试和比较,对识别效率进行了分析.
文摘文中介绍了一种易于实现的快速实时手势识别算法。研究借助计算机视觉库OpenCV和微软Visual Studio 2008搭建开发平台,通过视频方式实时提取人的手势信息,进而经二值化、膨胀腐蚀、轮廓提取、区域分割等图像处理流程甄别出当前手势中张开的手指,识别手势特征,提取出人手所包含的特定信息,并最终将手势信息作为控制仪器设备的操作指令,控制相关设备仪器。
文摘In this paper an efficient framework for the creation of 3D digital contentwith point sampled ge-ometry is proposed. A new hierarchy of shape representations with three levelsis adopted in this framework. Based on this new hierarchical shape representation, the proposedframework offers concise integration of various volumetric- and surface-based modeling techniques,such as Boolean operation, offset, blending, free-form defor-mation, parameterization and texturemapping, and thus simplifies the complete modeling process. Previously to achieve the same goal,several separated algorithms had to be used independently with inconsistent volumetric and surfacerepresentations of the free-form object. Both graphics and industrial applications are presented todemonstrate the effectiveness and efficiency of the proposed framework.
