Method for realizing blind road and pedestrian crossing real-time detection by utilizing computer vision technology

A technology of computer vision and pedestrian crossing, which is applied to computer parts, computing, and appliances that help people walk, etc., to achieve good stability and good scalability
CN101853399AInactive Publication Date: 2010-10-06BEIHANG UNIV
12 Cites 29 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIHANG UNIV
Publication Date
2010-10-06
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a method for realizing blind road and pedestrian crossing real-time detection by utilizing computer vision technology, including the following steps: firstly, image data of blind road is acquired, and image data of the environment surrounding the blind road is acquired; image data of pedestrian crossing is acquired, and image data of the environment surrounding the pedestrian crossing is acquired; secondly, an affine transformation model is utilized, and affine transformation is carried out on the image data of the blind road and pedestrian crossing acquired in the step one by random transformation of parameter in the model, so as to generate new image data of the blind road and pedestrian crossing, and the new image data and the original image data of the blind road and pedestrian crossing form a positive sample set and a negative sample set; thirdly, the positive sample set and negative sample set established in the step two are utilized to carry out grader training, so as to generate a grader for blind road and a grader for pedestrian crossing; fourthly, detection is carried out on the actually captured image, the required target is detected from the image, and post processing is carried out on the detection result, thus obtaining the position and trend of the target.
Need to check novelty before this filing date? Find Prior Art

Description

Technical field

[0001] The invention belongs to the technical field of automatic electronic blind guidance, and particularly relates to a method for real-time detection of blind roads and pedestrian crossings by using computer vision technology. Background technique

[0002] According to statistics from the national authority, China has the largest number of blind people in the world, with about 5 million, accounting for 18% of the world’s blind population. At the same time, China adds 450,000 blind people every year. How can we improve the quality of life for such a large population? , Has attracted more and more people’s attention. In order to improve their lives due to physical disabilities, many cities in China have set up convenient service equipment for the blind, and more and more are aimed at improving their lives. Quality equipment is invented and manufactured.

[0003] At present, there are many blind guide methods and devices. According to the sensor type, it can be div...

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