The paper introduced a novel method for stereoscopic image creation in virtual reality system.In this method

the left-and-right images were produced through different projection transformations in a single camera space

and the two types of projection matrices were derived respectively for stereoscopic head-tracked and non-head-tracked systems.Based on the single-camera method

we analyzed the relations among disparity

perceived depth

deformation of perceived objects and model mesh warping.The disparity and perceived deformation were modeled as 3D warping

so the disparity and the perceived deformation could be controlled by deforming the model mesh.Finally

a nonlinear perceived depth mapping method using mesh warping was proposed

which could reduce the artifacts caused by perceived distortion

and could avoid the image shift caused by perceived depth mapping in stereoscopic head-tracked system when the viewer moved his head left and right.