Configuration factors between rectangular planes excluding the blocking effect of the human body are essential to calculate accurately thermal radiation interchange between planes including the human body in a room. This paper described calculation method of the configuration factors which were derived from orthographic projection of the human body by using the photographic method and rectangular planes using computer graphics. The configuration factors including the effect of blocking by the human body were compared with the ordinary configuration factors between planes. Consequently, the maximum difference was found by 20% between two kinds of the configuration factors. A sphere is applied as the model of the human body without considering the effect of blocking. The configuration factor for the spherical element is affected with position of height, though configuration factors between the planes were not affected with blocking of the human body.
