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Method for detecting lorry safety belt hanging state based on road monitoring equipment

A technology of monitoring equipment and detection methods, which is applied in the field of target positioning and detection of traffic safety pictures, and can solve problems such as large manpower and large number of pictures

Inactive Publication Date: 2014-10-22
CENT SOUTH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the huge number of pictures, it takes a lot of manpower and material resources

Method used

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  • Method for detecting lorry safety belt hanging state based on road monitoring equipment
  • Method for detecting lorry safety belt hanging state based on road monitoring equipment
  • Method for detecting lorry safety belt hanging state based on road monitoring equipment

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Embodiment Construction

[0047] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0048] Such as figure 1 As shown, a method for detecting the fastening state of the truck seat belt based on road monitoring equipment, based on images taken from the road, includes the following steps:

[0049] Step 1: Obtain monitoring images from road monitoring equipment, such as figure 2 shown;

[0050] Step 2: After preprocessing the monitoring image according to the characteristics of the car and the background object, use integral projection to locate the body area in the original monitoring image obtained in step 1;

[0051] The preprocessing sequentially includes image grayscale, image filtering, edge detection and background noise removal operations;

[0052] Step 3: Use hough transform to locate the window area from the body area;

[0053] Step 4: Line detection;

[0054] Use the straight line detection method to det...

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Abstract

The invention provides a method for detecting a lorry safety belt hanging state based on road monitoring equipment. The method includes: step 1: obtaining a monitoring image from the road monitoring equipment; step 2: after preprocessing the monitoring image according to car and background object characteristics, adopting integral projection to locate a car body area in an original monitoring image; step 3: using hough conversion to locate a car window area in the car body area; and step 4: performing straight line detection; using a straight line detection method to detect whether straight line slope in the car window area is between 0.75 and 1.2, if the straight line slope is between 0.75 and 1.2, judging that a driver in the car window area belts up, and otherwise, judging that the driver in the car window area does not belt up. The car body and car window areas are utilized to locate the area where a safety belt is, thereby gradually diminishing a detection range, improving the accuracy rate and efficiency of safety belt detection, human eyes can be substituted and automatic judgment is performed, thereby improving the accuracy rate and efficiency of safety belt hanging detection.

Description

technical field [0001] The invention relates to the technical field of target positioning and detection in traffic safety pictures, in particular to a method for detecting the fastening state of a truck seat belt based on road monitoring equipment. Background technique [0002] The truck seat belt is an important device to ensure the safe driving of the driver and reduce the death and injury rate in traffic accidents during the driving of the car. [0003] In the latest technical research, the identification method of seat belts from the pictures taken on the road is generally by locating the license plate, then according to the position of the license plate, using the proportional relationship between the car body and the window to locate the window, and then finding the position of the steering wheel, and then using the straight line feature to detect the presence of seat belts. This method, first of all, due to the problem of the shooting angle, the cutting size is not u...

Claims

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Application Information

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IPC IPC(8): G06K9/62G06T7/00
Inventor 施荣华黄玲赵颖周芳芳李尹
Owner CENT SOUTH UNIV
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