Remote sensing imaging simulation method and device

Abstract

The embodiment of the invention provides a remote sensing imaging simulation method and a device, which relate to the technical field of computer simulation and are used for simulating the imaging result of a satellite optical sensor. The method includes: acquiring a first image; Determining a downsampling region in the first image according to downsampling parameters and imaging mode parameters of the optical sensor; Performing down-sampling processing on pixels in the down-sampling area to obtain a second image; The second image is adjusted according to the imaging mode parameters to obtaina remote sensing imaging simulation image based on the imaging mode parameters. The method can simplify the simulation process of satellite remote sensing imaging and reduce the cost and difficulty ofsatellite remote sensing imaging simulation.

Description

technical field [0001] The invention relates to the technical field of computer simulation, in particular to a remote sensing imaging simulation method and device. Background technique [0002] With the rapid development of satellite remote sensing technology, the number of remote sensing satellites is increasing rapidly. Since the imaging modes of different satellites are different, the imaging simulation methods for satellites in different imaging modes are also different. [0003] For the imaging mode in which there is an included angle between the push-broom direction of the optical sensor and the flight direction of the satellite, two methods of physical simulation and computer simulation can be used to perform imaging simulation in the prior art, but both of the two simulation methods have certain disadvantages. [0004] Among them, the physical simulation method verifies the imaging process of the optical sensor by arranging experimental equipment to build an imaging...

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Problems solved by technology

[0003] For the imaging mode where there is an angle between the push-broom direction of the optical sensor and the flight direction of the satellite, in the prior art, physical simulation and computer simulation can be used to perform imaging simulation, but the two simulation methods have certain shortcomings

[0004] Among them, the physical simulation method verifies the imaging process of the optical sensor by arranging experimental equipment to build an imaging environment. This method not only has high implementation costs, but also has the problem of large simulation errors due to the difficulty in controlling the accuracy of the equipment.

As for the computer simulation method, by establishing a digital three-dimensional virtual satellite for simulation, theoretically, the imaging results of optical sensors in different modes and different resolutions can be simulated, but the realization period is relatively long and the implementation is difficult. Big

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