Data preprocessing of the exterior field of vision assembling photogrammetric camera

Jinguo Liu; Jie Li; Guangze Li; Zhe Wang

doi:10.1117/12.783773

17 January 2008 Data preprocessing of the exterior field of vision assembling photogrammetric camera

Jinguo Liu, Jie Li, Guangze Li, Zhe Wang

Proceedings Volume 6723, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment; 67235E (2008) https://doi.org/10.1117/12.783773
Event: 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 2007, Chengdu, China

Abstract

Transmit array photogrammetric camera can obtain image which is high geometric fidelity and high photogrammetric quality. However, the single chip array CCD image sensor camera can't meet the need of measuring precision and photogrammetric covering area. In order to obtain large numbers of information and extensive photogrammetric covering area, we must increase field of vision angle and improve photogrammetric covering area. And all these objects can be realized by exterior field of vision assembling photogrammetric camera. Two side work must be done before images, which obtained by exterior field of vision assembling photogrammetric camera, be used in photogrammetry. First, all assembling camera focal plane need be converted to a benchmark coordinate focal plane to realize camera digital assembling. Second, images must be re-sampled and processing. Because of coordinate conversion, two images from different assembling cameras can be established function relation, which a pixel of image from a camera is corresponding to a pixel of another image from different camera. But through this conversion, some pixels maybe extrusion together and other pixels separate on an image area. So interpolation direction finding(IDF) is used to obtain these pixels and realize image re-sampling. In this paper, the structure of exterior field of vision assembling photogrammetric camera is analyzed, and the coordinate conversion method of exterior field of vision assembling photogrammetric camera and image gray re-sampling method also can be discussed. All the works are based to data pretreatment of exterior vision assembling photogrammetric camera.

Citation Download Citation

Jinguo Liu, Jie Li, Guangze Li, and Zhe Wang "Data preprocessing of the exterior field of vision assembling photogrammetric camera", Proc. SPIE 6723, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 67235E (17 January 2008); https://doi.org/10.1117/12.783773

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KEYWORDS

Cameras

Imaging systems

CCD cameras

Optical fabrication

Digital cameras

Image processing

Image quality

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