Research on the Sun Shadow Positioning Technology

DOI

10.2991/iccsae-15.2016.182How to use a DOI?

Keywords

sun shadow positioning; three-dimensional reconstruction; Image analysis technology

Abstract

In this paper, we will establish practical and reliable mathematical model to determine the video filming locations and dates by analyzing the shadow variations of the object in the video. At first, we convert the video into image sequences which can been read by MATLAB at regular intervals. So we can analyze the image sequences to obtain coordinates of the end of the shadow in the video; in the second place, we adopt the method of data transformation based on three-dimensional reconstruction to obtain the actual coordinates of the end of the shadow; next, taking advantage of the parametric equations of the shadow and the actual coordinates of the end of the shadow, we establish goal programming model to make the sum of the error of the shadow length and deviation angle variance of the coordinate system minimum. And we can obtain solar hour angle declination and angle latitude; Finally, we analyze the conversion relation of the solar hour angle with longitude and declination with dates to determine the video filming locations and dates.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Bin Yang
PY  - 2016/02
DA  - 2016/02
TI  - Research on the Sun Shadow Positioning Technology
BT  - Proceedings of the 2015 5th International Conference on Computer Sciences and Automation Engineering
PB  - Atlantis Press
SP  - 991
EP  - 994
SN  - 2352-538X
UR  - https://doi.org/10.2991/iccsae-15.2016.182
DO  - 10.2991/iccsae-15.2016.182
ID  - Yang2016/02
ER  -