摘 要：
采用LabView虚拟仪器软件开发平台和IMAQ Vision图像处理软件包开发基于计算机图像处理的奶牛体型线性评定软件系统。系统选用蓝色背景,增强了图像的对比度和定位准确性,减小了图像处理的难度。采用从HSL模型中抽取S值的方法实现图像灰度化处理,并通过中值滤波减少图像的噪声。试验结果表明,运用模板匹配方法来识别特征点,判定准确率达90%以上。计算机图像评分和手工评分结果的最大绝对误差1.1cm,相对误差为0.8%,系统精度满足线性评定要求,完全能取代手工评定,并提高了评定效率。
译 名：
Developing Linear Appraisal of Dairy Cow Conformation System with Image Processing Technique
作 者：
Huang Junran Qian Dongping Wang Wendi Chen Xiuhong(Agricultural University of Hebei)
关键词：
Conformation of dairy cow, Linear appraisal, Image processing
摘 要：
Adopting virtual instrument software development platform——LabView and image processing software package——IMAQ Vision to develop interactive measurement application system, and a dairy cow conformation linear appraisal system was built based on image processing. The blue color background was selected by the system, the image contrast and the localization accuracy were strengthened, and the image processing difficulty was reduced. The S value from the HSL model was extracted to realize image grizzled processing, and the image noise through the medium filtering was reduced. The research showed that with the template match method to distinguish the characteristic point, the determination rate of accuracy reached above 90%. Compared the results appraised by computer with those by appraiser, the biggest absolute error was 1.1 cm, and the relative error was 0.8%. The precision of the system met the request of linear appraisal, and could substitute manual evaluation completely. It also enhanced the efficiency of appraisal.
