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

Inactive Publication Date: 2010-10-06
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned blind guide devices and methods all detect obstacles or moving objects around the blind to remind the blind to avoid obstacles, and they do not detect blind roads and pedestrian crossings.

Method used

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

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Embodiment Construction

[0037] The invention can be implemented on an embedded system, which is more convenient for blind people to carry, and can effectively reduce power consumption. The system consists of the following modules: data acquisition module, data processing module and language prompt module. The data collection module is mainly used to collect image data of the surrounding environment; the data processing module is used to detect the collected images and look for blind roads or crosswalks; the language prompt module guides the blind to walk according to the detection information.

[0038] A specific implementation of the present invention includes the following steps:

[0039] [1]. Collect the image data of the blind road, the image data of the surrounding environment of the blind road (including the pedestrian crossing); the image data of the pedestrian crossing, the image data of the surrounding environment of the pedestrian crossing (including the blind road);

[0040] [2]. Use the image d...

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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.

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

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/66A61H3/06
Inventor 王兆仲肖汉
Owner BEIHANG UNIV
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