Measurement accuracy of stereovision systems based on CCD video-photographic equipment in application to agricultural and environmental surveys

Paolo Menesatti

doi:10.1117/12.262868

18 December 1996 Measurement accuracy of stereovision systems based on CCD video-photographic equipment in application to agricultural and environmental surveys

Paolo Menesatti

Author Affiliations +

Proceedings Volume 2907, Optics in Agriculture, Forestry, and Biological Processing II; (1996) https://doi.org/10.1117/12.262868
Event: Photonics East '96, 1996, Boston, MA, United States

Abstract

Artificial vision and image analysis are increasing their role in agriculture. Using systems based on stereoscopic vision it is possible to associate to the large images information, a three dimensional space reference. So it is possible to measure distances between vision system and any point of real observed scene or calculate relative positions between different subjects of the same image. The work evaluates the possibility, the capacity and the accuracy of stereovision system as possible application in environmental and agricultural survey. The analysis was performed theoretically in function of the characteristics of some image acquisition CCD equipment, existing on the market of video-photographic device, and considering different parameters of environmental situations (field of view width, linear distance - z - between video system and the subject). Good accuracy is obtainable also by a 'standard' system (500 pixels resolution) for a z distance of 100 m and 5 m distance of the two video equipment. For a similar situation with a high performance equipment (3060 pixel resolution), it is possible to obtain an accuracy of the centimeter rank.

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Paolo Menesatti "Measurement accuracy of stereovision systems based on CCD video-photographic equipment in application to agricultural and environmental surveys", Proc. SPIE 2907, Optics in Agriculture, Forestry, and Biological Processing II, (18 December 1996); https://doi.org/10.1117/12.262868

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