Scene model is one of key components of remote sensing physical models. Here

a computer scene model(CSM) was introduced. The CSM includes the parameterization of three dimensional landscape scene of a remote sensing pixel

data structure for the scene

methods and procedures for rendering the scene. In the CSM

generation of 3D architecturally realistic scene of a remote sensing pixel is based on vegetation measurement and statistics. Shape

size

base height and orientation of their leaves

and total height of corn and wheat firstly are measured by hand and by digital photogrammetry on field. Then the original data are normalized to obtain the feature parameter set of corn and wheat

which is used to rebuild single plant in computer. A remote sensing pixel usually consists of many plants

and positions of these plants in a pixel falls four interspersing patterns: random

regular

cluster

and transition. The CSM employs two methods to make 3D picture of a remote sensing pixel. The first rendering approach is based on the L system

which is applicable to plant with small number of big leaf

such as corn. The second one depends on statistics

which is applicable to plant with big number of small leaf

such as tree and grass. The 3D remote sensing pixel scene is used not only to show 3D pictures

but also to compute distribution function of energy by reflected or emitted by the remote sensing pixel. In order to do the calculation effectively and expediently

CMS records all polygons

which make up of the 3D scene

in a text file on an array of polygon. The polygon file is the ending of the CSM

and also the beginning of the pixel energy distribution calculation. The CMS produces successfully a 3D scene of a remote sensing pixel

which accords with statistics of the remote sensing pixel.