多灰度图象中信息提取及二值化

研究了黑斑、阴影、污迹等污染的多灰度文本图象，对其进行识别提取，得到清晰的二值文本图象，图象的二值化的实现有利于图象的分析，ＯＣＲ的处理，支票图象处理和图象传输，研究了ＹＤＨ算法，考虑了图象的局部信息，采用动态局部阈值法，并在ＰＣ－４８６计算机上实现了ＹＤＨ算法思想。     

Some Key Technologies of a New-type CNC Curve Grinding Machine

This paper presented a new-type CNC curve grinding machine, in order to conquer the disadvantages of conventional NC curve grinding machine and improve surface quality, dimensional accuracy and machining efficiency. The new-type grinder adopts some high and new technologies: ① the normal tracing device could make grinding wheel coincide with the normal direction of the machining points in work piece, and improve surface quality and dimensional accuracy; ② the digital image on-line recognition system could monitor machining process and compensate wheel wear in real time; ③ linear motor drive mechanism could realize the exact adjustment of the grinding head digitally and increase the machining efficiency. The math models of normal tracing and circular tolerance zone were presented. The experimental results show that the new-type CNC curve grinding machine equipped with the three devices mentioned above is easy to realize the precision grinding of any complex curve, and improve surface quality, dimensional accuracy and machining efficiency.     

混合遗传BP算法在图象识别中的应用

介绍了传统的遗传算法与BP算法，分析了它们各自的不足。提出了一种将BP算法与遗传算法有机结合的混合智能计算方法，并且给出了具体的算法实现流程。将该方法应用于数字图象识别，经过实验表明混合算法优于传统BP算法。     

文本图象识别及二值化的研究——基于模板的分离算法

章研究了黑斑、阴影、污迹等污染的多灰度本图象，对其进行识别提取，得到汪晰的二本图象，图象的二值化实现有利于图象的分析，ＯＣＲ的处理、支票图象处理和图象舆和理解。本研究了本图象识别及二值化基于模板的分离算法，考虑了笔划镀和汉字结构，在ＰＣ－４８６上实现，得到很好地二值化效果。     

Research of the image processing in dynamic flatness detection based on improved laser triangular method

As a commonly used non-contact flatness detection method, laser triangular detection method is designed with low cost, but it cannot avoid measurement errors caused by strip steel vibration effectively. This paper puts forward a dynamic flatness image processing method based on improved laser triangular detection method. According to the practical application of strip steel straightening, it completes the image pre-processing, image feature curve extraction and calculation of flatness elongation using digital image processing technology. Finally it eliminates elongation measurement errors caused by the vibration.