A normal sphere hue model based on reflect character and averageradius of image was introduced.
提出以待测图象的反射特性、平均半径为参数的标准球体灰度模型。
2
One astronomical unit is equal to the averageradius of the Earth's orBit, aBout 93, 000, 000 miles.
一个天文单位等于地球轨道的平均半径，大约是93，000，000 英里。
3
This paper focuses on the presentation of the basic principles and error analysis of equal intervals linear approaching and averageradius arc matching technique.