Three dimensional ghost imaging with a single-pixel detector

Conventional ghost imaging can only obtain two dimensional image because it only uses spatial correlation characteristics of light source. We describe a three dimensional arrangement using only a single-pixel detector based on computational ghost imaging. The three dimensional image of the object can be divided into gray-scale image and digital elevation model, where the gray-scale image can be obtained relying spatial correlation, and the digital elevation model can be obtained relying temporal correlation. In the further, this technology maybe find application in remote sense domain.