Single Camera Models and Calibration Procedures in Computer Vision
A camera is typically an opto-electronic device consisting of several sub-systems. First is the optics, consisting of elements such as a series of lenses, optical filters and shuttering elements that collect light from the object and focus the image onto the sensor plane. Second is the camera hardware. For example, when using a charge coupled device (CCD) camera to acquire digital images, the incident illumination is converted into an electrical signal. The third component (which may be an integrated element in the hardware) is the digitization and storage process. Using an A/D device, the CCD signal is converted into an array of discrete digital intensity data. In this section, we apply the pinhole projection models from Chapter 2 and develop a formulation that includes (a) rigid body transformations between several coordinate systems used to represent various elements in the imaging process, (b) the transformation between image plane coordinates and skewed sensor coordinates and (c) the effect of distortion on image positions.
KeywordsDeformation Measurement Camera Parameter Camera Model Calibration Target Bundle Adjustment
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