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基于DCT变换的图像编码方法研究
- 本文结合DCT变换的特性,利用分形的Peano一hilbert扫描曲线,对基于DCT变换的图像编码方法进行了研究,并提出了改进方法。主要工作分为两个部分: 一是在分块DCT基础上的改进。对分块后生成的各图像块矩阵,不直接作二维DCT变换,而是先进行扫描,使之重排成一维向量,再进行一维DCT变换,这样可以减少运算量。 其次是对层次余弦变换编码部分的改进。使用层次DCT变换与零树编码相结合的方法,并在扫描编码过程中,按Peano一hilbert扫描顺序进行编码。这样不仅可以减少“块效应”,而且可以加
arcgis_engine.rar
- 把线数据增加高程(增加Z值) SceneControl中实现画3DGraphics的方法 曲线距离的测量,Line data to increase the height (an increase of Z value) SceneControl achieve 3DGraphics painting method of measuring the distance curve
MoveToElement
- AE开发中 选择 移动 添加到mapcontrol 中的图形元素(文字、曲线、圆形、矩形等)-AE development choose to move to mapcontrol the graphic elements (text, curve, round, rectangular, etc.)
5
- 加粗曲线的LISP程序,费了老大劲才搞出来,分享一下-Bold curve LISP procedures, fees劲才engage the boss out to share
11257445
- 自动绘制等值线的方法从技术方向上看可以分为两大类,插值和曲线拟合.其中曲线拟合总的来说效果不如插值算法经典和应用广泛,效果也较逊色.这里着重介绍插值算法.-Automatic drawing method isogram direction from a technical point of view can be divided into two categories, interpolation and curve fitting. In which the effect of curve
2222CustomControldemo_src
- 工业用曲线绘制 工业用曲线绘制 工业用曲线绘制-Industrial Industrial Curve Curve
gongyequxian
- 从国外下得一个VC做曲线的程序chardemo,还不错-From abroad were a VC to do the next curve of the procedure chardemo, not bad
LineBuffer
- 完成GIS中折线和曲线实体要素的缓冲区的生成-GIS in the line and complete the physical elements of the buffer curve generation
HH_GIS_SpAn
- GIS空间分析工具,我们的空间分析课程设计包含道格拉斯抽样、曲线插值与光滑、多边形最小凸包、点群分布参数(分布中心、分布密度、分布轴线等)。基本功能都实现了。-GIS spatial analysis tools, our curriculum includes Douglas spatial analysis sampling, interpolation and smooth curve, the minimum convex polygon, point group distributio
DrawLine
- 此程序只要介绍的是线的画法,有直线曲线等-This procedure is described in lines as long as the painting, there is a straight line curve
b3curve.ZIP
- 林易老师的曲线算法的论文,这种曲线的特点是过控制点,可以用于CAD和GIS。-Lin Yi teacher' s curve algorithm paper, the characteristics of this curve is over the control point, can be used for CAD and GIS.
GIS
- GIS环境下缓和曲线绘制方法研究.The GIS environment study on drawing method of transition curve.-The GIS environment study on drawing method of transition curve.
GeometryOperations
- ArcGIS开发中以COM组件形式绘制几何要素(点、多点、线、面、曲线、包络线、还有路径跟踪)-Draw geometric elements(Point,multPoints、 line, surface, curve, envelope, and path tracking)
Logistic--curve-prediction
- Logistic(逻辑斯蒂)曲线模型是一种预测模型,该代码实现了L曲线的预测。-Logistic curve model is an important method which used widely in prediction. This code will help achieve the prediction.
huanhequxian
- 工程测量学 缓和曲线的vb代码:已知某曲线a,R,L,ZH点的里程,计算三点的坐标-Engineering surveying school transition curve vb code: known curve a, R, L, EN point of mileage, calculate the three-point coordinates
GIS
- gis道格拉斯算法,实现道格拉斯曲线抽样的算法-The gis Douglas algorithm, to achieve the Douglas curve sampling algorithm
fzy
- gis曲线反走样程序,用于生成光滑曲线,是生成光滑曲线最理想的算法-GIS program curve anti-aliasing, the best algorithm to generate a smooth curve
cbrcejiananalysis
- Matlab源程序代码,用于拟合超二次曲线,曲面的代码,-Matlab source code, used for super quadratic curve fitting, surface code, ha ha
