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Auto logo locating and identifying method

A technology of vehicle logo positioning and identification method, applied in the field of vehicle logo positioning and identification, can solve the problems of consistent interference of positioning and identification, different vehicle logo geometric shapes, complex vehicle logo background texture, etc. The effect of easy maintenance and improved positioning accuracy

Inactive Publication Date: 2013-09-18
武汉众智数字技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The background texture of the car logo is complex, especially the shape of the heat sink on the front of the motor vehicle is different, which makes positioning difficult;
[0005] 2. The geometric shapes of the vehicle logos are different, which interferes with the consistency of positioning and recognition;
[0006] 3. The gray level of the car logo is very similar to the gray level of the background of the car logo area, which greatly interferes with the overall positioning of the car logo

Method used

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  • Auto logo locating and identifying method
  • Auto logo locating and identifying method

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Embodiment Construction

[0051] Below in conjunction with accompanying drawing and embodiment describe in detail:

[0052] 1. Intelligent network camera A

[0053] 1. Overall

[0054] Such as figure 1 , intelligent network camera A includes LENS optical lens 1, is equipped with CCD image sensor 2, signal acquisition converter 3, HV signal driver 4, FPGA programmable logic processor 5, SDRAM memory 6, H264 video encoder 7, ARM central processing Device 8 and DSP image processor 9;

[0055] Its connection relationship is:

[0056] ①LENS optical lens 1, CCD image sensor 2, signal acquisition converter 3, FPGA programmable logic processor 5, SDRAM memory 6, DSP image processor 9 and ARM central processor 8 are connected in sequence to realize image acquisition, storage, analysis and deal with;

[0057] ②The FPGA programmable logic processor 5, the HV signal driver 4 and the CCD image sensor 2 are connected in sequence to realize the control of the CCD image sensor 2;

[0058] ③FPGA programmable logi...

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PUM

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Abstract

The invention discloses an auto logo locating and identifying method and relates to the field of intelligent transportation. Work environment of the auto logo locating and identifying method is intelligent network cameras. The intelligent network cameras capture pictures and then transmit the pictures into a DSP (digital signal processor) picture processing unit, an auto license plate locating and identifying module processes to acquire exact location of license plates, and then transmits exact location of license plates and picture data to an auto logo locating and identifying module to identify logo type. The auto logo location and identification can be classified into the following types: (1), auto logo location based on multilayer category: utilizing three locating methods to accurately locate auto logos with different texture background, (2) auto logo identification based on multilayer category: utilizing BP neural network classifiers corresponding to different locating types to identify auto logos to finally acquire auto logo types accurately. With the auto logo locating and identifying method, accuracy of auto logo location and identification is greatly improved, timeliness is good, system mounting is more simple and easy to maintain.

Description

technical field [0001] The invention relates to the field of intelligent transportation, in particular to a vehicle logo positioning and recognition method. Background technique [0002] In the field of intelligent transportation, with the rapid increase in the number of motor vehicles, motor vehicle information retrieval plays a key role in the effective handling of motor vehicles such as traffic accident handling, automatic monitoring of illegal vehicles, and automatic toll collection; however, since motor vehicle information retrieval only relies on License plate information, in the process of handling accidents and cases, due to the illegal replacement, occlusion and unclearness of the license plate, it is easy to cause slow processing progress, so the identification of the type of motor vehicle logo has an important application for the improvement and development of motor vehicle information retrieval value. [0003] At present, most of the technologies that can effect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/64G06K9/54
Inventor 陆辉蒋恋华张仁辉
Owner 武汉众智数字技术有限公司
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