Abstract
In photogrammetric applications, good camera parameters are needed for mapping purpose such as an Unmanned Aerial Vehicle (UAV) that encompassed with non-metric camera devices. Simple camera calibration was being a common application in many laboratory works in order to get the camera parameter's value. In aerial mapping, interior camera parameters' value from close-range camera calibration is used to correct the image error. However, the causes and effects of the calibration steps used to get accurate mapping need to be analyze. Therefore, this research aims to contribute an analysis of camera parameters from portable calibration frame of 1.5 × 1 meter dimension size. Object distances of two, three, four, five, and six meters are the research focus. Results are analyzed to find out the changes in image and camera parameters' value. Hence, camera calibration parameter's of a camera is consider different depend on type of calibration parameters and object distances.
Highlights
Camera calibration is one of the important processes in photogrammetric application
Most of digital cameras used in civilians Unmanned Aerial Vehicle (UAV) are not manufactured metric devices; if they are to be used in precision mapping applications it is crucial that they are repeatedly calibrated to assess current interior orientation parameters [5]
There is a lot of literature on the calibration of digital cameras that has been published, such as [7,8], on general investigations [9,10,11], low- cost digital cameras [12,13,14], behaviour of interior orientation parameters [14,15], and accuracy aspects[16]
Summary
Camera calibration is one of the important processes in photogrammetric application. Camera calibration is the initial step in many machine visions and photogrammetric applications involved [1]. Most of digital cameras used in civilians UAV are not manufactured metric devices; if they are to be used in precision mapping applications it is crucial that they are repeatedly calibrated to assess current interior orientation parameters [5]. There is a lot of literature on the calibration of digital cameras that has been published, such as [7,8], on general investigations [9,10,11], low- cost digital cameras [12,13,14], behaviour of interior orientation parameters [14,15], and accuracy aspects[16]. Series: Earth and Environmental Science 18 (2014) 012039 doi:10.1088/1755-1315/18/1/012039
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