A distortion corrected single camera-based weight estimation technique for industrial objects |
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Authors: | Chaudhuri Subhasis Mukherjee Anirban Dutta Pranab K Patra Amit |
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Affiliation: | R & D Centre for Iron and Steel, Steel Authority of India Limited, Ranchi, India. |
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Abstract: | This paper describes a unique single camera-based dimensional measurement with a self-calibration method of image-based measurement. The system has been designed and implemented in one of the integrated steel plants in India. The purpose of the system is to obtain the frontal cross-sectional area of an ingot irrespective of its distance from the camera head. Automatic calibration is achieved by attaching a magnetic template of known area. This self-calibrating system is further refined to correct for the various distortions arising out of lens characteristics. The results obtained through field trials have been reported and found to be quite encouraging. |
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Keywords: | Image-based system Camera calibration Dimension measurement Lens characteristics |
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