Abstract
When we observe it using stereoscopic display such as HMD, we feel an unnatural three-dimensional impression and may say a different three-dimensional impression every observer. Therefore we had what kind of relation to the distance perception of the target by a camera interval and a interpupillary distance or evaluated it when we changed a camera interval and changed a three-dimensional impression. As for the quantity of depth, it was with the tendency that became large so that a camera interval left it, and the result that was near to a theoretical value in the case of distance same as a background a target was provided. In the case of the front and rear, the tendency that quantity of depth was not stable was seen than a target a background.
