디지털 사진 내의 피사체 소실점을 이용한 렌즈 화각 측정 연구
A Study on Measurement for Lens Angle by using Vanishing Point of the Object in Digital Photos
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초록
As the tool to represent plane images, photos have the different vanishing point from an observer’s direction. However, size and shape of the object are changed due to angel and distortion of the optical lens, which changes the location of vanishing point. Due to that reason, if the vanishing point of the object is accurately measured, it in turn measures lens angle. Therefore, this study considered optical principals and geometric elements of the lens, and analyzed the location of vanishing point through 3D model about the specific objet in the photo. In addition, it measured lens angle used to actual digital photographing by applying lens angle values from the focal distance based on 35mm film. Like this, if the completed measuring method is applied, lens angle of the digital photos can be found out without metadata.
Abstract
As the tool to represent plane images, photos have the different vanishing point from an observer’s direction. However, size and shape of the object are changed due to angel and distortion of the optical lens, which changes the location of vanishing point. Due to that reason, if the vanishing point of the object is accurately measured, it in turn measures lens angle. Therefore, this study considered optical principals and geometric elements of the lens, and analyzed the location of vanishing point through 3D model about the specific objet in the photo. In addition, it measured lens angle used to actual digital photographing by applying lens angle values from the focal distance based on 35mm film. Like this, if the completed measuring method is applied, lens angle of the digital photos can be found out without metadata.
참고문헌 (11)
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