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基于colormap的态势图分层机制研究
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作者 罗文三 夏学知 何志峰 《舰船电子工程》 2008年第4期57-59,共3页
介绍X Window的显示原理和指控系统态势图的特点,并对X Window系统中的颜色分配原理和过程进行了详细的分析。最后,根据指控系统态势图特点提出了一种基于colormap的态势图分层机制来提高指控系统态势图的显示性能。
关键词 X WINDOW 颜色分配 分层
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可读性增强的流图生成
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作者 步川 张全杰 +1 位作者 汪云海 蒋鹏 《计算机辅助设计与图形学学报》 EI CSCD 北大核心 2021年第8期1182-1190,共9页
为了增强流图可读性,帮助用户更高效地识别染色层,提出一种基于流图已有布局,优化流图中染色层的颜色分配与标签布局的方法.首先根据流图的布局数据建立其颜色分配评价函数,通过遗传算法进行颜色分配方案优化,最大化染色层之间的颜色差... 为了增强流图可读性,帮助用户更高效地识别染色层,提出一种基于流图已有布局,优化流图中染色层的颜色分配与标签布局的方法.首先根据流图的布局数据建立其颜色分配评价函数,通过遗传算法进行颜色分配方案优化,最大化染色层之间的颜色差异和染色层与背景的亮度差异;然后在每个染色层上运行滑动窗口,通过最小二乘法拟合自动调整标签倾斜角度以适应染色层形状变化,得到标签尺寸自适应的标签布局结果.通过用户测试与定量评估,将文中方法与现有方法在多个真实和模拟数据集上进行实验的结果表明,该方法能够显著提高染色层的识别正确率,降低识别耗时,同时增大标签尺寸,从而有效地提高流图可读性. 展开更多
关键词 流图 颜色分配 标签布局
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高级色彩校正
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《计算机光盘软件与应用(COMPUTER ARTS数码艺术)》 2006年第2期80-81,共2页
色彩分级不仅仅是为场景进行颜色分配这么简单——同样也是有选择性地改变剪辑外观和感觉的一种途径。看看是如何做的吧……
关键词 色彩校正 高级 颜色 色彩分级 颜色分配
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Diagnosis of uremia patients based on color space 被引量:2
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作者 WANG Xue-min SHAO Na +4 位作者 WANG Rui-yun SUN Ying-ying YU Zhi-feng JIANG Zhi-hao ZHOU Peng 《Journal of Measurement Science and Instrumentation》 CAS CSCD 2020年第1期38-44,共7页
Since traditional nail diagnosis is susceptible to objective factors such as illumination,medical experience,etc.,a nail diagnosis system of traditional Chinese medicine which combines objective nail image acquisition... Since traditional nail diagnosis is susceptible to objective factors such as illumination,medical experience,etc.,a nail diagnosis system of traditional Chinese medicine which combines objective nail image acquisition with information analysis is proposed and applied to the clinical research of nail diagnosis of uremia patients.Fifteen nail pictures of uremic patients were collected and segmented.The color information of nails was extracted.The relationship between the hemoglobin values of uremic patients and the values of color space before and after maintenance hemodialysis was analyzed by correlation analysis and multiple regression analysis.The experimental results show that the hemoglobin value of uremic patients have certain correlations with multiple color channels;before and after dialysis,there are significant changes in multiple channels;and the related multiple regression equation is established. 展开更多
关键词 nail classification nail color UREMIA correlation analysis paired t test multiple regression
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EFFECTIVE APPEARANCE MODEL FOR PROBABILISTIC OBJECT TRACKING 被引量:1
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作者 Wang Shupeng Ji Hongbing 《Journal of Electronics(China)》 2009年第4期503-508,共6页
This paper presents a robust object tracking approach via a spatially constrained colour model. Local image patches of the object and spatial relation between these patches are informative and stable during object tra... This paper presents a robust object tracking approach via a spatially constrained colour model. Local image patches of the object and spatial relation between these patches are informative and stable during object tracking. So, we propose to partition an object into patches and develop a Spatially Constrained Colour Model (SCCM) by combining the colour distributions and spatial configuration of these patches. The likelihood of the candidate object is given by estimating the confidences of the pixels in the candidate object region. The appearance model is learnt from the first frame and the tracking is carried out by particle filter. The experimental results show that the proposed tracking approach can accurately track the object with scale changes, pose variance and partial occlusion. 展开更多
关键词 Object tracking Appearance model Particle filter Adaptive scale
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