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Topics include: line generators, affine transformations, line and polygon clipping, splines, interactive techniques, perspective projection, solid modeling, hidden surface algorithms, lighting models, shading, and animation.

章节中包含:线的生成,仿射转换,线和多边形的裁切,样条线,互动技术,透视投影,实体模型,隐藏面算法,明暗模型,阴影,和动画。

The fabric isn't a solid green colour; there's a pleasing subdued crosshatch pattern to it, with the horizontal lines fainter than the vertical ones.

并不是纯绿的颜色,上面还有一些交叉线的阴影,水平线的比垂直线要颜色浅一些。

By comparing the common edge detection algorithms, the magniloquent Kirsch edge detection algorithm is selected to process the result of background subtraction. The result of edge detection is denoised by mathematical morphology method. Shadow edge restrained arithmetic and detection-line-based background updating method are presented. Shadow edge restrained arithmetic reduces vehicle shadow edge efficaciously. Background updating precision is improved by presented background updating method.

在处理过程中,对常用的背景差方法进行了改进,有效的保留了车辆目标信息;通过对常用的边缘检测方法比较,选用了突出边缘的Kirsch边缘检测方法对背景差后的图像进行了边缘检测;使用形态除噪算法对边缘检测的结果进行了噪声去除;提出了阴影边缘去除算法和基于检测线的背景更新方法,阴影边缘去除算法有效的抑制了车辆阴影边缘,背景更新方法则提高了背景更新的精度。

This paper first introduces a system which can detect vehicle disobey the red light. then introduces a arithmetic with shadow elimination to solve the problem of violations detection of yellow line: by day,the quality of the image is good,this arthmetic uses a method which combine the line-frame detection and the HSV color information analysis.this method detect violations according as whether the line-frame of yellow is being destroyed. In order to solve the most important problem in apply instance—interference of shadow,we add HSV color information analysis in the area of yellow line which line-frame is being destroyed. If the shadows proportion is below the threshold,then we determine vehicle violative of yellow line; at night,the quality of the image is not good, we calculate the grey image of differences to detect violations.

本算法在白天图片质量较好时,采用结合HSV颜色空间分析线结构检测算法,该算法利用黄线区域的边缘结构特征作为依据检测是否存在车辆或阴影压黄线,针对实际应用中存在的最大问题即阴影的干扰,加入了HSV颜色空间分析来检测黄线边缘残缺区域,若该位置阴影比重低于一定比例,才认定为是车辆压黄线违章而不是阴影干扰;在夜晚图片质量下降的时候,采用灰度差值法。

He shipped his oars and brought a small line from under the bow. It had a wire leader and a medium-sized hook and he baited it with one of the sardines. He let it go over the side and then made it fast to a ring bolt in the stern. Then he baited another line and left it coiled in the shade of the bow.

他搁下桨,由船头下拿一条小鱼线,上面有一段铁丝线和一个中型鱼钩,他把它装上沙丁鱼的鱼饵,然后把它从船边放下去,再固定在船尾的环状螺钉上,接着,他装上另外一条鱼线的饵,把线卷好放在船头的阴影处。

Dragging CDynSplitterWnd splitter bar does not show a hatched line, instead it immediately redraws itself at a new position as well as forces all its panes to redraw themselves.

拖动CDynSplitterWnd 的分隔条不会显示一条阴影线,它会立即在新位置重新绘制分隔条,并让所有的窗格重新绘制自己。

The lines are crisp and dark, and the color is well-shaded so you can get a true feel for this devil's attitude!

该线的清晰和黑暗,而且颜色以及阴影,让您能够真正感受到这个魔鬼的态度!

PPI and CPI always shadow quest line.

PPI和CPI始终追求的阴影线。

Index of the week the two cities have a longer line on the shadow line, subject to five weeks more obvious trend average.

指数一周的两座城市,在阴影线较长线,但以5个星期的平均趋势更为明显。

Instead, the shadow line or terminator is diffuse and shows the gradual transition to darkness we experience as twilight.

然而,那条阴影线或者说是昼夜分界线在漫漫扩散,显示我们黄昏天空逐渐变暗的过程。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。