Resources Contact Us Home
Method and apparatus for estimating the velocity vector of multiple vehicles on non-level and curved roads using a single camera

Image Number 4 for United States Patent #7920959.

A method and an apparatus is provided for determining the velocity vector, speed, and direction of moving vehicles traveling on roadways which change elevation and have curves. A camera mounted above a roadway observes at least one vehicles traveling in different directions on different roads. Each pixel in the two-dimensional optical image is mapped into a three-dimensional real world location to enable the moving vehicles to be analyzed in the three-dimensional real world as they travel on roads, which may change elevation and may have curves. The estimated vehicle velocities may be displayed on an image near the moving vehicle. Individual images with vehicle velocities may be posted on an Internet site. The sequence of optical images, or streaming video, with the displayed vehicle velocities may also be used for television news programs that show traffic moving on the roadways.

  Recently Added Patents
Three tier rolling cart
On-the-fly encryption on a gaming machine
Ion trap type mass spectrometer and mass spectrometry
Gastrointestinal motility control
Photosensitive resin composition for flexographic printing having excellent solvent resistance
Peer-to-peer video on demand techniques
  Randomly Featured Patents
Internal combustion engine
Method and system for increasing flash rate in a document reproduction system
DRAM core refresh with reduced spike current
Digital signal processor integrally incorporating a coefficient interpolator structured on a hardware basis
Optical processing
Metal to metal antifuse
Method and circuit for detecting a fault in a clock signal for microprocessor electronic devices including memory elements
Process for making sodium gold sulfite solution
Buoy for storing line connected to underwater object
Absorbent article with clean appearance and capacity signal means