测绘通报 ›› 2019, Vol. 0 ›› Issue (2): 39-44.doi: 10.13474/j.cnki.11-2246.2019.0040

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Quantitative expression of fields of view under close range photogrammetry

XIAO Yi, LIU Peng, WANG Yu, ZHANG Wenjing, ZHANG Sijia   

  1. Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China
  • Received:2018-05-05 Revised:2018-06-19 Online:2019-02-25 Published:2019-03-05

Abstract:

The relationship at the field of view under close range photogrammetry refers to position and pose relationship at different fields of view in a small space range, which is used to determine the rotation and translation of the reference coordinates, represented by different cameras.Under the framework of close range photogrammetry, a method for determining the position and pose between two different fields of view is proposed in this paper, of which the concrete steps are:①Change detection from the large field of view,when the change area is detected, the original image is obtained at the same time,and the sample images set were obtained under the small field of view. ②The original photo and the sample photos are relatively orientated, and the spatial attitude parameters of the sample photos relative to the original photo are obtained. ③The original image is matched with the sample images to obtain the sample image with the highest matching degree,the attitude parameters of the sample image are the spatial position and pose of the samll field of view relative to the large field of view. ④According to the attitude parameters obtained in step 3, the camera position and pose is adjusted under the small field of view so that it can be aligned to the changing area. Experiments show that this method can effectively support the quantitative description of the field of view in a small range.

Key words: close range photogrammetry, fields of view, change detection, relative orientation, image matching

CLC Number: