虚拟场景漫游中用户关注度的内隐测量方法
摘要
The eye-tracker device is the main tool to obtain visual attention. However, it is hard to be applied in the 3D virtual scene navigation because of its poor reliability, great complexity and high price. We propose a new attention measure metric which can be easily embedded in the virtual environment. Behaviors of virtual camera controlled by the user are regarded as implicit expression of visual attention. The implicit expression is parameterized by the observed objects distance to the center of the camera, occlusion, projected area, and observation time. A sophisticated user study experiment is designed to verify the reliability of this kind of measurement. The proposed implicit measurement of user attention can be effectively applied to an application of user attention aided game design.