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- W4383896559 abstract "To handle the problem of solving the results of aircraft’s visual navigation with scene matching, this paper take the measure of the spherical EPnP positioning posture solving by measuring the central angle threshold value and approaches for constructing a measuring model. The detailed steps are as follows: firstly, this approach needs to construct a positioning coordinate model for the earth surface, makes sure the expression for the 3-dimensional coordinate of the earth surface and solves the positioning of constructing data model with EPnP positioning posture solving algo-rithm. Secondly, by contrasting and analyzing the positioning posture value of approximate plane coordinates, the critical value is acquired, which can be recognized as plane calculation. Lastly, this method should construct a theoretical model of measurement for the visual height and central angle with the decided central angle threshold value. The simulation experiment shows that the average positioning precision of taking the spherical coordinates as input is 16.42 percent way higher than taking the plane coordinates as input. When the central angle is less than 0.05 degrees and the surface district is less than 5585 square meters, the positioning precision of the plane co-ordinates is pretty much equal to the spherical coordinates. At this moment, the sphere can be seen as flat. The conclusion of this essay can theoretically guide the further study of positioning posture solving of the scene matching, which is also of vital significance for theory research and engineering application." @default.
- W4383896559 created "2023-07-12" @default.
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- W4383896559 date "2023-07-11" @default.
- W4383896559 modified "2023-09-23" @default.
- W4383896559 title "Estimation of Earth's Central Angle Threshold and Measure-ment Model Construction Method for Pose and Attitude Solution Based on Aircraft Scene Matching" @default.
- W4383896559 doi "https://doi.org/10.20944/preprints202307.0719.v1" @default.
- W4383896559 hasPublicationYear "2023" @default.
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