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Position tracking system and method based on digital video processing technique

A digital video and tracking system technology, applied in the field of vehicle navigation, can solve problems such as difficult to grasp the location

Inactive Publication Date: 2008-04-16
INSPUR LG DIGITAL MOBILE COMMUNICATIONS CO LTD
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Problems solved by technology

[0007] However, the method adopted in the prior art is to use specific hardware (satellite or antenna) to confirm the current position, and then use the terminal to connect to the base station. In the case of obtaining information, it is difficult to grasp the position, so it is difficult to provide direct assistance to the driver of the vehicle in each actual situation, and it is also impossible for the driver to leave the vehicle body and use the above-mentioned cameras or terminals independently

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  • Position tracking system and method based on digital video processing technique
  • Position tracking system and method based on digital video processing technique

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Embodiment Construction

[0028] The present invention will be described in detail below with reference to the accompanying drawings.

[0029] In the embodiments of the present invention, it will be described assuming that a camera-integrated mobile phone is equipped with a location tracking function.

[0030] figure 1is a block diagram of a location tracking device according to an embodiment of the present invention. As shown in the figure, it consists of the following parts: the sign information management unit (160), which stores specification information such as the color and size of the road sign; the road sign perception unit (120), which uses a camera ( 110) The obtained image information is compared and analyzed with the information of the above-mentioned sign information management unit (160) to confirm whether it is an actual road sign image; the location information extraction unit (130), which extracts from the above-mentioned verified road sign image Extract text information (place name,...

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Abstract

PURPOSE: A position tracking system and a method using a digital image processing technology are provided to obtain / analyze an image of a road sign without associating with a satellite or a base station, thereby perceiving a current position. CONSTITUTION: A sign information manager(160) stores standard information. A road sign sensor(120) compares an image obtained by a camera(110) with the stored information, and confirms whether the image is a substantial road sign image. A position information extractor(130) extracts text information and graphic information from the image. A position information analyzer(140) compares the extracted text and graphic information with previously obtained information, and perceives a current position. A position information storage(170) stores text / graphic-based position information. A map searcher(180) maps the current position information with map information. An information output unit(150) displays the current position information in text or / and graphic.

Description

technical field [0001] The invention relates to a vehicle navigation technology, in particular to a position tracking system and method based on digital video processing technology. Background technique [0002] Most of the car navigation systems widely used at present use GPS (Global Positioning System-Global Positioning System) to inform the method of its own position. This is achieved through mobile phone users, base stations, and satellites. Depending on the performance of the installed GPS, the range of information provided will vary. [0003] In addition, even without the use of GPS, the vehicle's departure location and movement can be tracked. [0004] For example, Japanese Patent JP8247775A published on September 27, 1996 discloses a car positioning system based on digital video processing technology. Its technical feature is that the system is carried on the vehicle, including: one or more cameras, with It is used to take pictures of roadside scene images during v...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/00G06F17/30H04Q7/38H04W4/00H04W4/02
Inventor 韩松伊
Owner INSPUR LG DIGITAL MOBILE COMMUNICATIONS CO LTD
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