Driver eye movement characteristics handover detecting and tracing method based on light sensing

An eye movement feature, light sensing technology, applied in image data processing, instrument, character and pattern recognition, etc., can solve the problems of poor real-time performance, long calculation time, poor robustness and accuracy, and achieve high accuracy, Good real-time performance, improving nonlinear strong tracking ability and the effect of
CN101833770AInactive Publication Date: 2010-09-15SOUTHWEST JIAOTONG UNIV
2 Cites 12 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SOUTHWEST JIAOTONG UNIV
Publication Date
2010-09-15
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 discloses a driver eye movement characteristics handover detecting and tracing method based on light sensing, comprising the following steps: detecting illuminance by a light sensor, positioning a high illuminance condition by a Harr human eye detection method, and positioning a low illuminance condition by a bi-dimensional orthotropic Log-Gabor human eye detection method started by a computer; maintaining all-day position without influence of illuminance; and adding two dimensional parameters of system noise and observation noise on the basis of an uniform model after positioning, performing logarithmic transform on the two dimensional parameters, establishing a human eye non-linear model and a sampling strong tracking non-linear filter, adjusting system process noise and observation noise covariance matrix by fading factors, improving the non-linear strong tracking capability and model state robustness of a UKF filter, adapting to driver normal emergent operation reaction, and improving real time property of an algorithm by adopting a sampling strategy that (n+2) numbered sampling points perform strong tracking on Sigma point in the UKF filter.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to an image detection and tracking method, in particular to a driver's eye detection and eye movement tracking method in a driving environment. technical background

[0002] With the rapid development of science and technology and social economy, while the number of cars in the world is increasing rapidly, vicious road traffic accidents are also increasing simultaneously. According to the statistical analysis of traffic accidents in European and American countries, it is shown that among numerous traffic accidents, 80% to 90% are caused by driver's human factors, and fatigue driving is the "first killer" most likely to cause major traffic accidents. According to statistics from the National Highway Traffic Safety Administration of the United States, there are about 100,000 road traffic accidents in the United States each year due to drivers falling asleep while driving, of which about 1,500 directly lead to death and 71,000 accide...

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