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Automatic collecting method of high-resolution satellite remote sensing traffic flow information

A high-resolution, satellite remote sensing technology, applied in traffic flow detection, neural learning methods, instruments, etc., can solve problems such as low time efficiency and complex calculation, and achieve the effect of improved time efficiency, high degree of automation, and rapid acquisition

Inactive Publication Date: 2013-01-02
REMOTE SENSING APPLIED INST CHINESE ACAD OF SCI
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Problems solved by technology

[0023] This method is computationally complex and time-efficient

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  • Automatic collecting method of high-resolution satellite remote sensing traffic flow information
  • Automatic collecting method of high-resolution satellite remote sensing traffic flow information
  • Automatic collecting method of high-resolution satellite remote sensing traffic flow information

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Embodiment 1

[0063] The present invention will be described in further detail below in conjunction with accompanying drawing and specific implementation case (such as figure 1 shown).

[0064] A method for automatically collecting high-resolution satellite remote sensing traffic flow information includes the following steps.

[0065] 1. Preprocessing 101:

[0066] In order to extract useful information from satellite remote sensing images, it is necessary to preprocess the input high-resolution satellite images1. The preprocessing included in the present invention includes: registration 1011 of panchromatic image and vector road network and panchromatic and multi-spectral image, road area segmentation 1012, bilateral filter image enhancement 1013. These three tasks deal with high-resolution panchromatic images and multispectral images (such as Quickbird) acquired by the same high-resolution remote sensing satellite platform at a certain time difference (greater than 0.2 seconds).

[006...

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Abstract

The invention discloses an automatic collecting method of high-resolution satellite remote sensing traffic flow information. The automatic collecting method comprises the following steps of: A. pretreatment: registration of panchromatic images and a vector road network as well as panchromatic and multi-spectral images, road region division and double edge filtering strengthen; B. acquiring a vehicle sample characteristic value by visually judging a road region image obtained in the step one, and establishing a vehicle remote sensing image feature library; C. carrying out rough neural network vehicle extraction and fine facing objective vehicle extraction on the panchromatic images obtained in the step two; D. by utilizing a matching method relative to an image frequency domain, searching the vehicle position in fine extraction in the step three in multi-spectral images and carrying out matching; E. calculating a displacement amount of a same vehicle in the panchromatic and multi-spectral images according to the corresponding vehicle position obtained in the step three and the step four, thus estimating traffic flow parameter information; and F. verifying the traffic flow parameter information through precision evaluation. With the adoption of the method, static and dynamic traffic flow information in a large range series can be automatically and rapidly collected, the efficiency is high, and the method is simple and practicable.

Description

technical field [0001] The invention relates to the image processing and analysis technology of satellite remote sensing in the field of intelligent transportation, in particular to a method for automatic collection of high-resolution satellite remote sensing traffic flow information, which is suitable for traffic flow monitoring of large-scale road networks, and can quickly and automatically acquire a series of Static and dynamic traffic flow information can meet the needs of large-scale macro-traffic surveys and provide services for urban and regional traffic management and traffic planning. Background technique [0002] In recent years, the number of private cars has grown rapidly, and more and more cities in my country are beginning to face traffic congestion, which not only affects public travel, consumes a lot of energy, causes environmental pollution, but also affects the normal functioning and sustainable development of cities . Intelligent Transportation System (ITS...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01G06K9/46G06N3/08
Inventor 刘亚岚刘珠妹任玉环
Owner REMOTE SENSING APPLIED INST CHINESE ACAD OF SCI
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