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This paper proposes a concept of how to representation of Thai character features with impulse response of FIR system. The character or numeral image captured by a digital camera is converted to binary image. The character and numeral features extraction method is performed that consists of edge contour detection, thinning, and searching for coordinates of character and number. Then its coordinates...
This paper proposes a technique of camera calibration to calibrate a camera. It is easy for the proposed technique to extract the camera parameters with only one image using an iteration method. In this paper, radial and tangential lens distortion is modeled. The proposed technique divides original parameters into block of parameters. Each block of parameters is computed by minimizing a nonlinear...
Most coplanar calibration algorithms determine the initial camera parameters from a single image under the assumption that the principal point is known in advance. However, the camera orientations, the shifted principal point and the noise corrupted on images have an influence on the estimated initial camera parameters under the above assumption. This paper proposes a useful method to determine the...
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