Matches 301 - 350 out of 400 < 1 2 3 4 5 6 7 8 >
Match Document Document Title
5777564 Traffic signal system and method  
System and method for the improved operation of a traffic signal system which reduces delays to vehicular traffic at one or more signalized intersections by detecting vehicular demand for movement...
5771485 Apparatus and method for detecting a velocity of a moving object  
An apparatus for detecting a velocity of a moving object includes: a camera for photographing a predetermined area in which the object moves, at intervals of time T; a projector for projecting...
5767794 traffic surveillance process and device  
A traffic surveillance system measures a speed of a vehicle within a traffic scene, optically records the traffic scene, and reproduces the traffic scene on a display in synchronism with a display...
5761326 Method and apparatus for machine vision classification and tracking  
A method and apparatus for classification and tracking objects in three-dimensional space is described. A machine vision system acquires images from roadway scenes and processes the images by...
5757286 Method and a device for the registration of the movement of a vehicle  
A device and method for registering the displacement of a vehicle using a video camera device located above the ground and including a pair of cameras spaced parallel to the ground and directed to...
5757287 Object recognition system and abnormality detection system using image processing  
An object recognition system using the image processing in which an area having a unique feature is extracted from an input image of an object, the unique image is registered in a shade template...
5750069 Method and apparatus for discriminating vehicle types  
A technique for discriminating a vehicle uses the pressures of tires of a vehicle passing on a pair of contact-point boards, which are converted into digital signals by using shift registers, and...
5742699 Passive velocity measuring device  
The presented invention provides the velocity of a moving target from a remote location. A CCD camera receives the image of the target vehicle and records this information on CCD array. The camera...
5734343 One-way optical highway communication system  
A one-way optical communication system adapted for vehicular use. A light-readable indicia (35) is embedded in a window or mounted on an exterior portion of a moving motor vehicle (10). The indicia...
5734337 Vehicle speed monitoring system  
A method for determining the speed of a vehicle using a camera. The method automatically compensates an apparent speed determination for inaccuracies due to the position of the camera with respect...
5729216 Apparatus for monitoring vehicle periphery  
A monitoring apparatus for monitoring the periphery of a motor vehicle in which patterns painted on the surface of a road are eliminated to shorten a time required for calculation to determine a...
5717391 Traffic event recording method and apparatus  
A system for determining the condition of a traffic controlling semaphore has an audio sensor mounted in the vicinity of an intersection so the sound level is monitored at all times. A computer is...
5717390 Doppler-radar based automatic vehicle-classification system  
A method for automatically categorizing the general variety of motor-vehicle types moving through a given checkpoint, according to their predominant characteristics; basically involving features...
5708425 Real time messaging interface for vehicle detection sensors  
A sequential messaging method for use in a vehicle detector and classification system having a processor and that uses first and second beams to detect transitions of front and rear ends of a...
5705996 Toll collection system  
The present invention provides an automobile toll system which may determine accurately whether a device mounted on a vehicle has a mismatch even when a small automobile is running just behind a...
5699057 Warning system for vehicle  
A warning system for a vehicle comprises a pair of stereoscopic cameras, image recognizing means for processing images, two warning devices disposed on the left and right side of a driver, the...
5689249 Off-lane alarm apparatus  
An off-lane alarm apparatus is disclosed in which upon the increase of the height of a pickup sensor mounted on a car, the increased portion is provided for an image processing device. The image...
5680123 Vehicle monitoring system  
The vehicle monitoring system uses a plurality of video cameras mounted on various location of a vehicle to detect and display objects not readily visible to the vehicle operator. In particular,...
5661472 Off-lane alarm apparatus  
An off-lane alarm apparatus quantizes an image signal provided from a line camera mounted on a car roof is into a corresponding binary image by an image processing device to detect a lane on a road...
5642299 Electro-optical range finding and speed detection system  
A passive optical speed and distance measuring system includes a pair of camera lenses positioned along a common baseline a predetermined distance apart and controlled by an operator to capture...
5640156 Mobile communication method  
A mobile communication method wherein a pilot signal is repeatedly transmitted toward a communication zone. As an IU on a vehicle arrives at the communication zone, it transmits a pilot response...
5586063 Optical range and speed detection system  
A passive optical speed and distance measuring system includes a pair of camera lenses positioned along a common baseline a predetermined distance apart and controlled by an operator to capture...
5581249 Mobile communication system  
A mobile communication system for highway toll charging and the like includes road-side units which periodically poll vehicle-mounted units. When traffic near a road-side unit is slow, repeated...
5568406 Stolen car detection system and method  
A method and system to detect and identify a target vehicle displaying a switched or invalid license plate includes a license plate reader to read the plate number carried by a target vehicle in...
5554984 Electronic traffic tariff reception system and vehicle identification apparatus  
An electronic traffic tariff reception system can identify a vehicle traveling freely on a road having a plurality of lanes clearly and impose a predetermined debit value on the vehicle in the...
5555312 Automobile apparatus for road lane and vehicle ahead detection and ranging  
An apparatus recognizes road traffic lines and a car running ahead without regard to obstacles and noise signals. A video image recording unit on a car provides an image of the road ahead....
5537110 Vehicle detecting system  
The object of the present invention is to accurately detect vehicles even under special conditions where vehicles go side by side, a motorcycle passes another vehicle in a traffic jam, or a shadow...
5537170 Projection-lens driving apparatus with a timing belt  
The projection-lens driving apparatus having a housing with a top and a bottom faces for use in a 3-beam projector includes an upper plate, an upper projection-lens holder, a pair of cross link, a...
5530441 Traffic flow measuring method and apparatus  
A method and an apparatus for measuring traffic flows, or in other words the flows of vehicles, inside and near a crossing. The method and apparatus are capable of extracting vehicles with a high...
5515042 Traffic enforcement device  
An improved traffic monitoring and evidence gathering device (10) is provided which can be mounted in a mobile monitoring vehicle (32) in order to monitor vehicle traffic speed and, when a speeding...
5510764 Device for detecting school bus stop arm violations  
The present invention relates to a device for detecting and identifying school bus stop arm violations. The device includes a sensor positionable on a school bus for detecting the presence of a...
5509082 Vehicle movement measuring apparatus  
A video camera is placed so as to overlook vehicles' attitudes at an intersection and in the vicinity of the intersection. Video signals provided by the video camera are sent to the main body of a...
5486819 Road obstacle monitoring device  
A road obstacle monitoring device is disclosed, in which a monitoring imaging section monitors and images a road section, where road obstacles by wave flooding, land slip, etc. are foreseen, to...
5473931 Method and apparatus for calibrating three-dimensional space for machine vision applications  
A calibration apparatus for calibrating three-dimensional space for a machine vision system and a method for using the calibration apparatus for calibrating the machine vision system are disclosed....
5444442 Method for predicting traffic space mean speed and traffic flow rate, and method and apparatus for controlling isolated traffic light signaling system through predicted traffic flow rate  
A method for predicting a traffic flow rate at a point on a road to control a traffic light signaling system measures a traffic density on the road to predict a traffic flow rate by utilizing the...
5432547 Device for monitoring disregard of a traffic signal  
A device for cracking down on disregard of a traffic signal includes a television camera for imaging a road, on which signal lights are mounted at a cross; a vehicle movement measuring instrument...
5428353 Road use charging apparatus  
Charging apparatus for use in a road vehicle enables an authority to charge for road usage. As the vehicle is used on controlled parts of road way, debiting means debits credit units at a...
5424727 Method and system for two-way packet radio-based electronic toll collection  
A two-way packet radio-based electronic toll collection system is to be installed on a highway and includes a main communication tower for transmitting continuously downlink communication packets...
5402118 Method and apparatus for measuring traffic flow  
This invention aims at providing an traffic flow measurement method and apparatus attaining the stable measurement without being affected by the change in the brightness of the external environment...
5396429 Traffic condition information system  
A series of image sensors is spaced along a roadway at particular intervals to provide images of the traffic and an identification signal associating those images with the location of the...
5396234 Validation checking in traffic monitoring equipment  
Traffic monitoring equipment including traffic speed measuring equipment has a signal validation facility incorporated to enhance reliability of the equipment. This facility permits the monitoring...
5392034 Vehicle classification system using profile  
A vehicle classification system automatically identifies types of vehicles traveling along a vehicle lane of toll road. The system has a detector for detecting the passage of the vehicle at a...
5361379 Soft-decision classifier  
An apparatus and method are disclosed for classifying a signal among a plurality of potential signal sources or events in which a signal embodying values for predefined source features is received...
5353021 Apparatus for measuring moving state of vehicle in tunnel  
An apparatus for measuring a moving state of a vehicle in a tunnel, in which traffic information such as number of vehicles which have passed, velocity, and the like can be always accurately...
5351044 Vehicle lane position detection system  
A low cost, real time vehicle lane position detection system is provided for determining and maintaining the position of the vehicle on a highway. The system comprises an image sensor mounted on...
5301239 Apparatus for measuring the dynamic state of traffic  
In an apparatus for measuring the dynamic state of traffic, a video camera unit picks up images of traffic on the road. The picture information is temporarily stored in memory units, and then...
5296852 Method and apparatus for monitoring traffic flow  
A vision processing apparatus and method for detecting and monitoring traffic flow. The method includes the steps of generating successive images of a section of roadway; transducing the successive...
5281964 Traffic flow change monitoring system  
A traffic flow change monitoring system is disclosed, which uses data obtained from a vehicle perceiving sensor placed on a road and which can detect a traffic congestion or an unexpected event....
5250946 Device for estimating the behavior of road-users  
A device for estimating the general behavior of a group of persons, each son being the driver of a moving body. The invention relates to a device estimating comparatively the behaviors by measuring...
5243663 Vehicle detecting method and apparatus performing binary-conversion processing and luminance variation processing  
A vehicle detecting apparatus for detecting a vehicle in each vehicle existence judging region based on binary pixel data, wherein a luminance level at which a variance of luminance of pixels in...
Matches 301 - 350 out of 400 < 1 2 3 4 5 6 7 8 >