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Video identification method of subway color light annunciator

A technology of video recognition and signal machine, which is applied in the field of signal light recognition, can solve the problems of difficult to locate signal light mechanisms, affect recognition, and difficult positioning, and achieve the effect of improving recognition distance, long recognition distance, and reduced computing cost

Pending Publication Date: 2021-01-12
CASCO SIGNAL
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AI Technical Summary

Problems solved by technology

However, in the tunnel, the light is relatively dim, and the original method is difficult to locate the position of the signal light mechanism. At the same time, the bright signal light will cause obvious halos and jitters around the colored lights when collecting video data, and the light-emitting area in the center of the signal light will appear. White, affecting recognition
In addition, due to the narrow environment in the subway tunnel, diffusely reflected luminous areas often appear on the walls and roofs, which further brings difficulties to positioning when the signal machine cannot be seen clearly.

Method used

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  • Video identification method of subway color light annunciator
  • Video identification method of subway color light annunciator
  • Video identification method of subway color light annunciator

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Embodiment Construction

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0047] The principle of the present invention is as figure 1 Shown: The real-time video data in front of the vehicle is captured by the far-focus lens installed in the driver's cab, and transmitted to the algorithm for continuous analysis and recognition. This algorithm is aimed at the special conditions in the tunnel, segmented by HSV color space, and uses the maximum inter-class threshold Using the OTSU method to screen the highlighted areas in the tunne...

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Abstract

The invention relates to a video identification method of a subway color light annunciator, which is used for an unmanned vehicle to identify a color light annunciator beside a track in a subway tunnel environment, and is used for carrying out various processing on an image according to a special environment in a tunnel and the characteristics of acquired video data, thus finally eliminating external interference, and identifying the sight of the signal lamp accurately and quickly. Compared with the prior art, the invention has the advantages of being accurate in recognition, long in recognition distance, high in operation speed, good in real-time performance and the like.

Description

technical field [0001] The invention relates to the field of signal lamp recognition, in particular to a video recognition method for subway colored light signal machines. Background technique [0002] With the continuous development of rail transit automatic driving technology, ATO (autonomous driving) is gradually transforming into UTO (unmanned driving), and there is no longer a driver in charge of looking out. Some newly designed rail transit vehicles have even canceled the driver's cab, miniaturized the driver's control equipment and made a hidden design. This trend has become the mainstream of subsequent development. [0003] At present, the unmanned driving of rail transit mainly relies on the mature and highly reliable CBTC communication-based train control system. Information is transmitted in this system using network communication. However, when the CBTC signaling system is degraded or disabled due to a fault, vehicles still need to strictly follow the instruct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/34G06K9/38G06K9/46G06K9/62
CPCG06V20/584G06V10/28G06V10/267G06V10/56G06F18/24
Inventor 王思远蒋耀东韩海亮
Owner CASCO SIGNAL
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