Therefore, Correction of lens distortion is generally the first step to proceed in photogrammetry. If we do not correct the distortion, result ofphotogrammetry is not accuracy. All of the photographs obtained by the camera have a distortion of the lens. This becomes a more important problem in photogrammetry. STUDY OF CHARACTER OF LENS DISTORTION AND METHOD CORRECTING LENS DISTORTION Kim Hong Il Email: Hong Il - Master of Geography, Lecturer, DEPARTMENT OF GEODETIC INFORMATIONAL ENGINEERING, FACULTY OF RESOURCE PROBING, KIM CHAEK UNIVERSITY OF TECHNOLOGY, PYONGYANG, DEMOCRATIC PEOPLE'S REPUBLIC OF KOREAДЄbstract: the lens distortion correction is very important problem in the field of technological engineering processing image obtained by camera. It has been experimentally confirmed that the correction method proposed in the introduction is superior.

Therefore, in this paper we have analyzed the lens distortion characteristics in the photogrammetry, and performed the distortion correction by the polynomial method based on this analysis. There are polynomial methods, advantageous methods, in many methods and All of these methods are correction methods for the general shape of the lens. There are various methods for correcting the distortion of the lens. If we do not correct the distortion, result of photogrammetry is not accuracy. The lens distortion correction is very important problem in the field of technological engineering processing image obtained by camera.

Camera lens distortion portraiture