Video Imaging Vehicle Detection System

The Vendor is required to provide video imaging vehicle detection system (VIVDS) that monitors and provides vehicle stop line detection at a roadway intersection via processing of video images and provides detector outputs to a traffic controller or similar device.
- A VIVDS configuration for a single intersection will consist of sufficient cameras, the field communications link, VIVDS card rack or shelf mounted processor system, and all associated equipment required to setup and operate in a field environment including a video monitor, mouse and set-up software with interface cable (if required), connectors and camera mounting hardware.
- The system is composed of these principal items: the camera(s), the field communications link between the camera and the VIVDS processor unit, and the VIVDS processor unit along with a pc if required, video monitor or associated equipment required to setup the VIVDS and if required, central control software to communicate to the VIVDS processor.
- Functional capabilities
•    The system software must be able to detect either approaching or departing vehicles in multiple traffic lanes. 
•    Each zone and output must be user definable through interactive graphics by placing lines and boxes in an image on a video or VGA monitor. 
•    The user must be able to redefine previously defined detection zones.
•    Detection zones must be provided that are specific to the direction of vehicle travel. 
•    The direction to be detected by each detection zone must be user programmable. 
•    The vehicle detection zone should not activate if a vehicle traveling any direction other than the one specified for detection occupies the detection zone. 
•    Cross-street and wrong way traffic should not cause detection.
•    The VIVDS processor unit must compensate for minor camera movement (up to 2% of the field of view at 400 foot) without falsely detecting vehicles. 
•    The camera movement must be measured on the unprocessed video input to the VIVDS processor unit.
•    The VIVDS processor unit must compensate for minor camera movement (up to 2% of the field of view at 400 foot) without falsely detecting vehicles. 
•    The camera movement must be measured on the unprocessed video input to the VIVDS processor unit.
•    Once the detector configuration has been downloaded or saved into the VIVDS processor unit, the video detection system must operate with the monitoring equipment (monitor and laptop) disconnected or on-line.
•    For systems that utilize video processor module card(s) a minimum of 4 detector outputs per module is required and each module card must have a minimum of 24 detection zones.
•    The VIVDS must provide real time vehicle detection (within a maximum of 700 milliseconds (MS) of vehicle arrival).
•    The VIVDS processor unit must be capable of simultaneously processing information from various video sources, including video players and either CCTV or CMOS video image sensors. 
•    The video sources may be, but are not required to be, synchronized or line locked. 
•    The video must be processed at a rate of 5 to 30 frames per second by the VIVDS processor unit.
•    The system must be able to detect the presence of vehicles in a minimum of 12 detection zones within the combined field of view of all cameras (a minimum of 12 detection zones per camera input to the VIVDS processor unit). 
•    Shelf mount systems that utilize a fixed wide angle lens shall be capable of providing a minimum of 24 detection zone outputs for ts1 and a minimum of 64 detection zone outputs for ts2 within a 300 foot radius of a camera mounted at 30 foot.
- Vehicle detection
1. Detection zone placement
•    The video detection system shall provide flexible detection zone placement anywhere within the combined field of view of the image sensors. 
•    Preferred presence detector configurations shall be lines or boxes placed in the lanes, or lines or boxes placed in-line with lanes of traffic. 
•    A single detector shall be able to replace one or more conventional detector loops. 
•    Detection zones shall be able to be fully overlapped. 
•    Detection zones should have the capability of implementing “and” and “or” logical functions including presence, extension and delay timing. 
•    These logical functions may be excluded if provisions are made to bring each detector separately into the controller and the controller can provide these functions.
2. Detection zone programming
•    Placement of detection zones shall be by means of a graphical interface using the video image of the roadway. 
•    The monitor shall show images of the detection zones superimposed on the video image of traffic while the VIVDS processor is running. 
•    The detection zones shall be created by using the mouse or keypad to draw detection zones on the monitor. 
•    The detection zones shall be capable of being sized, shaped and overlapped to provide optimal road coverage and detection. 
•    It shall be possible to save, upload and download the detector configurations to and from the VIVDS processor unit and to retrieve the detector configuration that is currently running in the VIVDS processor unit. 
•    The mouse or keypad must be used to edit previously defined detector configurations so as to fine-tune the detection zone placement size and shape. 
•    Once a detection configuration has been created, the system shall provide a graphic display of the new configuration on its monitor. 
•    While this fine-tuning is being done, the detection shall continue to operate from the detector configuration that is currently called. 
•    When a vehicle occupies a detection zone, the detection zone on the live video must indicate the presence of a vehicle, thereby verifying proper operation of the detection system. 
•    With the absence of video, the card must have a led indicator that will indicate proper operation of the detection zones. 
•    Shelf mounted units may provide a led or LCD display indication to satisfy this requirement.
3. Design field of view
•    The video detection system shall reliably detect vehicle presence in the design field of view. 
•    The design field of view shall be defined as the sensor view when the image sensor is mounted 24 foot or higher above the roadway, when the camera is adjacent (within 15 foot) to the edge of the nearest vehicle travel lane, and when the distance to the detection area is not greater than ten (10) times the mounting height of the image sensor. 
•    Within this design field of view, the VIVDS processor unit shall be capable of setting up a single detection zone for point detection (equivalent to the operation of a 6 foot by 6 foot inductive loop). 
•    A single camera, placed at the proper mounting height with the proper lens, shall be able to monitor up to and including five (5) traffic lanes simultaneously.