Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Visual detecting and counting method for vehicle flow rate under complex road condition

A technology for visual inspection and complex road conditions, applied in computing, computer parts, instruments, etc., which can solve the problems of large impact on image quality and low counting accuracy.

Active Publication Date: 2017-09-05
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF17 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of counting the area of ​​moving objects in the prior art based on the visual detection method for counting the traffic flow. On complex roads where cars, pedestrians and non-motor vehicles are mixed, the counting accuracy is extremely low and is affected by image quality. For larger problems, the present invention provides a method for visual detection and counting of traffic flow in complex road conditions

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Visual detecting and counting method for vehicle flow rate under complex road condition
  • Visual detecting and counting method for vehicle flow rate under complex road condition
  • Visual detecting and counting method for vehicle flow rate under complex road condition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0072] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0073] A method for visual detection and counting of traffic flow under complex road conditions, the steps are as follows:

[0074] Step 1, the color and illumination of the images in the traffic monitoring video obtained in a balanced manner; the specific steps of step 1 are as follows:

[0075] Step 1.1: Obtain the traffic surveillance video, and calculate the direction vector V of the left and right lanes in the video 1 ,V 2 ;

[0076] Step 1.2: Loop in the image f in the traffic surveillance video i (x,y), such as figure 2 shown, and for the image f i (x, y) is preprocessed with the MSRC...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a visual detecting and counting method for the vehicle flow rate under a complex road condition, belongs to the technical field of machine vision, and solves the problems that a visual detection method for counting the vehicle flow rate by counting the area of moving objects is extremely low in the counting accuracy and greatly influenced by the image quality under complex roads in which vehicles, pedestrians and non-motor vehicles are mixed. The method comprises that initial information is set; video images are read in a cyclic way, and an MSRCR algorithm is used to realize illumination equalization and color balance at the same time; an AdaptiveMedian algorithm is used for background modeling, and a movement foreground is extracted; opening operation is carried out on the foreground, and bonded moving objects are separated while noises are removed; a contour is searched, the area is calculated, and the contour is filled if the area is lower than a threshold; vehicles in the foreground are identified by utilizing Haar characteristics and an AdaBoost classifer; and vehicles in each frame of foreground are identified, and positions of the vehicles are recorded. Thus, the method is used to extract moving objects under the complex road condition accurately, identify the vehicles specifically, and counting the vehicles in the real-time collection video.

Description

technical field [0001] A visual detection and counting method for traffic flow under complex road conditions, which is used to accurately extract moving targets under complex road conditions, specifically identify vehicles in them, and count the number of vehicles in real-time collected videos, belongs to the technical field of machine vision. Background technique [0002] "Machine vision" is a rapidly developing branch of artificial intelligence. Simply put, machine vision is the use of machines instead of human eyes for measurement and judgment. The machine vision system converts the captured target into an image signal through the machine vision product (that is, the image capture device, which is divided into CMOS and CCD), and transmits it to a dedicated image processing system to obtain the shape information of the captured target. According to the pixel distribution and Information such as brightness and color is converted into digital signals; the image system perfo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/62G06K9/46
CPCG06V20/54G06V10/446G06V10/44G06F18/2148G06F18/24
Inventor 范文澜李梦雪谢吉航陈响彭真明马沪敏张兰丹张鹏飞宋立卓励然王卓然
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products