A RGB-D based visual computing research has received increasing attention among researchers, such as pose estimation, segmentation, people detection, object labelling, and so on. However, almost all the existed RGB-D based researches are using indoor RGB-D datasets. The main reason is that there's no available sensors for collecting outdoor RGB-D images. In this paper, we combine a ToF camera with a RGB camera and solve the image registration problem based on thepin-hole camera model. The initial experiments show that our method can perform as well as Kinect indoors but surpass Kinect outdoors.