共查询到19条相似文献,搜索用时 140 毫秒
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一种中医舌象的舌质舌苔分离方法* 总被引:1,自引:0,他引:1
舌诊是中医诊法最重要的特色之一,舌诊客观化研究有助于舌诊的继承和发展。根据舌象的特点,分析并处理了舌象的色度直方图,提出了自动确定颜色类别数和初始聚类中心的算法,并在改进模糊聚类算法的基础上提出了一种彩色舌图像舌质舌苔分离方法。实验结果表明,与标准模糊聚类算法相比,该算法极大地加快了聚类迭代速度,减少了系统运算时间;相对于阈值分割法,能够获得更加符合中医要求的苔质分离效果。 相似文献
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舌象特征的自动分析是中医舌诊客观化的核心内容。舌苔颜色作为舌象最基本的特征,其分类的准确程度决定了后续舌象分析的有效性。因此,提出了基于轻型卷积神经网络架构的舌苔颜色分类方法。考虑到实际采集中舌象样本较少且类别不平衡的特点,对舌象样本中不平衡的舌苔颜色类别进行数据扩充;通过设计轻型卷积神经网络,将特征提取和分类纳入到一个框架中统一进行处理,利用数据驱动学习图像与其属性的映射关系,得到舌苔颜色分类模型,从而实现对舌象样本的苔色分类。实验结果表明,提出的舌苔颜色分类方法可以取得94. 85%的分类准确率,对辅助中医临床诊疗及临床研究具有现实意义。 相似文献
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舌象采集是中医舌象分析中非常重要的一环,一套稳定、可靠、高精度的舌象采集系统直接影响到舌象分析和病情诊断的准确性。针对上述要求,设计了一种一体式的中医舌象采集分析系统,具有结构简单,功能全面,体积小等特点。通过积分球搭建的光照环境保证了舌体的受光均匀。使用MFC编写采集处理程序,便于升级维护。研究了一种手动调节相机白平衡参数的方法,保证采集过程中舌象颜色的准确性。 相似文献
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对彩色扫描文档进行倾斜校正是对其进行OCR等处理所必须首先经历的步骤,为了对彩色倾斜文档图像进行准确、高效校正,提出了一种新的彩色文档图像的倾斜自动校正算法,该算法包括倾斜检测算法和倾斜校正算法。其中,倾斜检测算法解决了准确获得图像的倾斜角的问题;而倾斜校正算法则除了完成图像的旋转变换外,还通过色彩补偿解决了由于整数运算所造成的“锯齿”现象。倾斜检测是通过纹理复杂性分析实现的,而色彩补偿则是基于颜色线性相关的双线性插值算法。实验表明,该算法较好地解决了彩色文档图像的倾斜自动校正问题,它对于具有单一背景的彩色文档图像是准确、高效、实用的。 相似文献
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A novel approach based on computerized image analysis for traditional Chinese medical diagnosis of the tongue 总被引:22,自引:0,他引:22
Chiu CC 《Computer methods and programs in biomedicine》2000,61(2):77-89
This research is aimed at building a computerized tongue examination system (CTES) based on computerized image analysis for the purpose of quantizing the tongue properties in traditional Chinese medical diagnosis. The chromatic algorithm is developed to identify the colors of the tongue and the thickness of its coating. The textural algorithm is used to detect the grimy coating. CTES is shown to be significantly consistent within itself with P > 0.05 using the Hotelling multivariate statistical test. The overall rate of correctness for CTES to identify the colors of tongue, verifying the thickness of its coating and detecting of any grimy coating exceeds 86%. Therefore, the CTES is helpful to provide the physicians a systematic and objective diagnostic standard for the tongue diagnosis in the clinical practice and research. 相似文献
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许舒 《数码设计:surface》2008,(1):79-81
幼儿园环境中的色彩对幼儿园环境的使用者以及幼儿园本身有不同程度的影响作用。本文从色彩功效学理论出发,通过对影响幼儿园色彩的各种因素的梳理,对色彩在幼儿园中的作用加以分析阐述,强调以人本,从环境的功能的出发考虑具体环境中色彩的设计,同时举例分析了幼儿园环境不同区域色彩的合理配置,以期为幼儿园环境设计提供独特视角。 相似文献
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This study investigates how yellow lighting and white lighting affect color confusion in contrast with how sunlight does by using the Farnsworth–Munsell 100 Hue Test System (FM100). Forty college students with normal color vision are enrolled in this study. The experimental setup involves ceiling lighting at a 90° angle on the FM100 with an illuminance of 550 lx, in which the subjects view the FM100 at a 45° angle. All color chips of the FM100 that are fully discriminable under sunlight are arranged in a color circle (FM100 color circle) with equal hue steps resembling those of a 100 Munsell hue circle. Under colored lighting, however, colors may be undistinguishable, resulting in the misplacement of some of the color chips. Color confusion is then determined by counting the number of times a color chip is misplaced, which is called an error score. All error scores are plotted on the FM100 color circle, which is called the color error sheet, to reveal the range and severity of color confusion due to the colored lighting. Experimental results indicate that, although yellow lighting significantly introduces color confusion, white lighting does not. Additionally, yellow lighting does not cause serious impairment in distinguishing between the yellow (its own color) and blue colors (complementary of yellow), but causes significant impairment in distinguishing between the green and red colors. On the error scoring sheet, both the two nonconfusion series and the two confusion series are complementary and orthogonal. This observation allows us to postulate that, although colored lighting does not cause significant impairment in distinguishing between its own complementary colors, it does between its orthogonal colors. © 2010 Wiley Periodicals, Inc. 相似文献
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Avi Naiman 《The Visual computer》1985,1(3):194-201
With the introduction of low-cost color graphics systems comes a host of problems specifically concerned with the color aspect
of the system. This paper discusses two of these problems: the selection and manipulation of colors by (possibly) inexperienced
users, and the automatic selection of colors by the system to achieve high contrast effects on the screen. A new color space
based on color opponency theory is described. This space is useful both in the user interface and in the automatic selection
of high contrast colors. 相似文献
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针对当量化图像的颜色数量较少时如何调节颜色层次和微弱颜色,本文提出了一种新颖的多级颜色量化算法.根据Kohonen自组织神经网络和线性像素置换计算第一级调色板;然后多次迭代找出最相似的颜色对,删除其中的一个,得到第二级调色板;最后根据调色板中颜色的像素数量和与基色距离的加权和,选出最终的代表颜色.实验结果表明,该算法能够通过设置适当的像素取样率、像素数量权重和与基色的距离权重而有效地选择满足不同需要的量化结果,并且保持较好的量化图像质量. 相似文献
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曾惕惕 《数码设计:surface》2012,(7):44-46
这是一个视觉大众化时代,色彩在商业视觉传达设计中扮演着先声夺人的重要角色:未闻其人,先见其彩。消费者是否喜欢商品,60%~90%因色彩而决定。色彩在商业视觉传达设计中优于图形传达和文稿传达,具有特殊的诉求力,能更准确、快速的传达信息与思想感情,能引起人们对商品的兴趣和购买欲望。因此设计师应明白色彩与商品的关系,探索色彩与商品之间的关系及其规律,并发挥色彩在商品视觉传达中的效应为商品市场营销添翼。 相似文献