CN109993167A - A kind of safety inspection method of construction vehicle - Google Patents
A kind of safety inspection method of construction vehicle Download PDFInfo
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- CN109993167A CN109993167A CN201910267340.3A CN201910267340A CN109993167A CN 109993167 A CN109993167 A CN 109993167A CN 201910267340 A CN201910267340 A CN 201910267340A CN 109993167 A CN109993167 A CN 109993167A
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- license plate
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/40—Extraction of image or video features
- G06V10/44—Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/60—Type of objects
- G06V20/62—Text, e.g. of license plates, overlay texts or captions on TV images
- G06V20/63—Scene text, e.g. street names
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Image Analysis (AREA)
- Image Processing (AREA)
Abstract
The invention discloses a kind of safety inspection method of construction vehicle, steps are as follows: 1, the license plate of the vehicle passed in and out in construction site is registered and establishes license plate database；2, when vehicle enters security check, the original image before and after vehicle is acquired by monitoring camera；3, the license plate number clear image on processing acquisition vehicle is carried out for the original image before and after vehicle；4, the license plate number on license plate is read；5, judge that license plate number whether there is in license plate database, if there is then judging that the vehicle is to belong to normal license plate used in the construction site, if judging that the vehicle is that non-normal vehicle carries out warning note and the vehicle is intercepted without if, the construction site is not allowed access into.Recognition accuracy of the present invention is high, safer, and stability is high, and is more convenient to be managed the Construction traffic at subsequent construction scene.
Description
Technical field
The invention belongs to technical field of building construction, in particular to a kind of safety inspection method of construction vehicle.
Background technique
Building trade is exactly one around the design of building, construction, finishing, management and the industry being unfolded.Urban architecture is
A pith in city is constituted, and building not only is merely one for people's lodging rest, the artifact amused and diverted oneself,
It in terms of very big on it is associated with our economy, culture and life.Therefore construction industry is particularly important.
Many special Construction traffics, such as the stirring of crane, forklift, lorry, concrete can be applied in building construction process
The Construction traffic of all multiple types such as vehicle, material transport vehicle.And since construction site is very special, on frequent vehicle or on license plate
There may be spot, existing method can not all be used directly to identify Construction traffic, can not be preferably for applying
Various Construction traffics at work scene are managed.
Summary of the invention
Goal of the invention: aiming at the problems existing in the prior art, providing a kind of recognition accuracy height, safer, stablizes
Property high, and the safety inspection method of the more convenient construction vehicle being managed for the Construction traffic at subsequent construction scene.
Technical solution: in order to solve the above technical problems, the present invention provides a kind of safety inspection method of construction vehicle, including as follows
Step:
(1) license plate of the vehicle passed in and out in construction site is registered and establishes license plate database；
(2) when vehicle enters security check, the original image before and after vehicle is acquired by monitoring camera；
(3) original image before and after vehicle cut and obtain license plate original image；
(4) license plate original image is converted into gray level image, original color space is converted to HSV space；
(5) image after conversion is pre-processed,
(6) edge detection is carried out to pretreated image,
(7) on the basis of edge detection, integrated use local thresholding method, Global thresholding and dynamic thresholding method, according to pixel
The relationship of value and threshold value divides the image into black, white dichromatism region and realizes image binaryzation；
(8) it after image binaryzation, is operated using expansion, area filling and the etching operation in mathematical morphology, realizes that region is closed
And it is further rejected with noise；
(9) floor projection and upright projection are successively carried out to the edge image detected, determines the boundary up and down of license plate；
(10) License Plate is carried out by support vector machines after projection confirmation, and reads the license plate number on license plate；
(11) license plate number obtained in judgment step (10) whether there is in license plate database, if there is then judging that the vehicle is
Belong to normal license plate used in the construction site, if judging that the vehicle is that non-normal vehicle carries out warning note without if
And the vehicle is intercepted, the construction site is not allowed access into.
It is further, pretreated to the image progress after conversion in the step (5) that specific step is as follows:
(5.1) several frame images in front is taken disposably to be determined；After each image and the difference of background image is calculated,
Gauss pre filtering operation is carried out again
(5.2) noise spot is further eliminated to resulting image application prefilter.
Further, to pretreated image progress edge detection, specific step is as follows in the step (6): passing through gradient
Operator, Roberts operator, Sobel operator and Prewitt operator inhibit background characteristics of low-frequency, the image after obtaining edge detection.
Further, by support vector machines progress License Plate, specific step is as follows: specification positive example in the step (10)
The size of sample and negative data carries out off-line training using support vector machines, video to be processed is applied to after training, real
Existing License Plate.
Compared with the prior art, the advantages of the present invention are as follows:
The present invention can be for the problem that construction site, and spot may be had by overcoming on Construction traffic or on license plate.This hair
It is bright to be used directly to identify the ticket of Construction traffic, and preferably Construction traffic is managed, raising is applied
The security performance at work scene.And recognition accuracy is high, safer, stability is high.
Specific embodiment
With reference to embodiment, the present invention is furture elucidated.Embodiments described herein are only the present invention
A part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Obtained other embodiments under the premise of creative work are made, the range that the present invention is protected is belonged to.
The present invention provides a kind of safety inspection method of construction vehicle, includes the following steps:
(1) license plate of the vehicle passed in and out in construction site is registered and establishes license plate database；
(2) when vehicle enters security check, the original image before and after vehicle is acquired by monitoring camera；
(3) original image before and after vehicle cut and obtain license plate original image；
(4) license plate original image is converted into gray level image, original color space is converted to HSV space；
(5) image after conversion is pre-processed,
(6) edge detection is carried out to pretreated image,
(7) on the basis of edge detection, integrated use local thresholding method, Global thresholding and dynamic thresholding method, according to pixel
The relationship of value and threshold value divides the image into black, white dichromatism region and realizes image binaryzation；
(8) it after image binaryzation, is operated using expansion, area filling and the etching operation in mathematical morphology, realizes that region is closed
And it is further rejected with noise；
(9) floor projection and upright projection are successively carried out to the edge image detected, determines the boundary up and down of license plate；
(10) License Plate is carried out by support vector machines after projection confirmation, and reads the license plate number on license plate；
(11) license plate number obtained in judgment step (10) whether there is in license plate database, if there is then judging that the vehicle is
Belong to normal license plate used in the construction site, if judging that the vehicle is that non-normal vehicle carries out warning note without if
And the vehicle is intercepted, the construction site is not allowed access into.
It is further, pretreated to the image progress after conversion in the step (5) that specific step is as follows:
(5.1) several frame images in front is taken disposably to be determined；After each image and the difference of background image is calculated,
Gauss pre filtering operation is carried out again
(5.2) noise spot is further eliminated to resulting image application prefilter.
Further, to pretreated image progress edge detection, specific step is as follows in the step (6): passing through gradient
Operator, Roberts operator, Sobel operator and Prewitt operator inhibit background characteristics of low-frequency, the image after obtaining edge detection.
Further, by support vector machines progress License Plate, specific step is as follows: specification positive example in the step (10)
The size of sample and negative data carries out off-line training using support vector machines, video to be processed is applied to after training, real
Existing License Plate.
Claims (4)
1. a kind of safety inspection method of construction vehicle, which comprises the steps of:
The license plate of the vehicle passed in and out in construction site is registered and establishes license plate database；
When vehicle enters security check, the original image before and after vehicle is acquired by monitoring camera；
Original image before and after vehicle cut and obtains license plate original image；
License plate original image is converted into gray level image, original color space is converted to HSV space；
(5) image after conversion is pre-processed,
(6) edge detection is carried out to pretreated image,
(7) on the basis of edge detection, integrated use local thresholding method, Global thresholding and dynamic thresholding method, according to pixel
The relationship of value and threshold value divides the image into black, white dichromatism region and realizes image binaryzation；
(8) it after image binaryzation, is operated using expansion, area filling and the etching operation in mathematical morphology, realizes that region is closed
And it is further rejected with noise；
(9) floor projection and upright projection are successively carried out to the edge image detected, determines the boundary up and down of license plate；
(10) License Plate is carried out by support vector machines after projection confirmation, and reads the license plate number on license plate；
(11) license plate number obtained in judgment step (10) whether there is in license plate database, if there is then judging that the vehicle is
Belong to normal license plate used in the construction site, if judging that the vehicle is that non-normal vehicle carries out warning note without if
And the vehicle is intercepted, the construction site is not allowed access into.
2. a kind of safety inspection method of construction vehicle according to claim 1, which is characterized in that in the step (5)
It is pretreated to the image progress after conversion that specific step is as follows:
(5.1) several frame images in front is taken disposably to be determined；After each image and the difference of background image is calculated,
Gauss pre filtering operation is carried out again
(5.2) noise spot is further eliminated to resulting image application prefilter.
3. a kind of safety inspection method of construction vehicle according to claim 1, which is characterized in that in the step (6)
Carrying out edge detection to pretreated image, specific step is as follows: passing through gradient operator, Roberts operator, Sobel operator
Inhibit background characteristics of low-frequency with Prewitt operator, the image after obtaining edge detection.
4. a kind of safety inspection method of construction vehicle according to claim 1, which is characterized in that in the step (10)
Carrying out License Plate by support vector machines, specific step is as follows: the size of specification positive example sample and negative data utilizes branch
It holds vector machine and carries out off-line training, be applied to video to be processed after training, realize License Plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910267340.3A CN109993167A (en) | 2019-04-03 | 2019-04-03 | A kind of safety inspection method of construction vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910267340.3A CN109993167A (en) | 2019-04-03 | 2019-04-03 | A kind of safety inspection method of construction vehicle |
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| Publication Number | Publication Date |
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| CN109993167A true CN109993167A (en) | 2019-07-09 |
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| CN201910267340.3A Withdrawn CN109993167A (en) | 2019-04-03 | 2019-04-03 | A kind of safety inspection method of construction vehicle |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103313041A (en) * | 2013-06-17 | 2013-09-18 | 广东新视野信息科技有限公司 | Intelligent construction site monitoring and management method |
| CN103646550A (en) * | 2013-12-30 | 2014-03-19 | 中国科学院自动化研究所 | Intelligent vehicle license plate recognition system |
| CN107085707A (en) * | 2017-04-14 | 2017-08-22 | 河海大学 | A kind of license plate locating method based on Traffic Surveillance Video |
| CN108765975A (en) * | 2018-06-21 | 2018-11-06 | 智慧互通科技有限公司 | The vertical managing system of car parking of trackside and method |
-
2019
- 2019-04-03 CN CN201910267340.3A patent/CN109993167A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103313041A (en) * | 2013-06-17 | 2013-09-18 | 广东新视野信息科技有限公司 | Intelligent construction site monitoring and management method |
| CN103646550A (en) * | 2013-12-30 | 2014-03-19 | 中国科学院自动化研究所 | Intelligent vehicle license plate recognition system |
| CN107085707A (en) * | 2017-04-14 | 2017-08-22 | 河海大学 | A kind of license plate locating method based on Traffic Surveillance Video |
| CN108765975A (en) * | 2018-06-21 | 2018-11-06 | 智慧互通科技有限公司 | The vertical managing system of car parking of trackside and method |
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Application publication date: 20190709 |