As an important part of CAD for woven fabric,the simulation technique of woven appearance has received due attention and research,and some mature techniques have come into being,which can be classified into three categories: color matching model-based method,yarn designing-based method,and geometrical model and light model-based method.

In order to improve the quality of the 3D medical image reconstructed via Shear-Warp,an improved pre-integrated volume rendering(IPVR) algorithm based on Shear-Warp is proposed,in which the volume rendering equation and the light model are adopted to determine the final re-sampling value and to construct an intermediate image.

The colors and the opacity of voxels in transfer function should be assigned in order to display hide interfaces (the interface of inner different mediums) in objects by direct volume rendering based on the general volume light model.

Computer Simulation of Fabric Contexture and Illumination Model;

Study of image-based illumination model and its implementation;

3D reconstruction technology of SMT solder joint by shape from shading based on improved illumination model

According to three dimension rotating geometric model and Phong BuiTuong s shading model , and based on the previous equi intensity principle, this paper describes a new specular reflection model and an improved real time algorithm generating a set of projective equi intensity curves on quadric surface.

To construct lighting model of the real world is one of the critical technologies in augment reality.

Secondly,use lighting model to calculate the gray value of the projection plane.

This paper presents a kind of advanced lighting model based on Phong lighting and radiosity model to improve the traditional ray-tracing lighting model which lacks of the radiant-energy interactions (diffuse inter-reflection) between all faces in a scene.

Face recognition based on illumination invariant;