Abstract: A new type of redundancy binocular PNP camera positioning method has been introduced. The absolute position of the object in three-dimensional can be calculated through the coordinate transformation, by establishing the relationship between image coordinate system, the camera coordinate system and the world coordinate system. The positioning method has characters of high precision, good reliability to compared with monocular camera measurement methods, and can be widely applied to many fields.

Key words: Redundant, PNP, Photogrammetric survey, Positioning method