FIELD: physics; optics.
SUBSTANCE: invention pertains to optical methods of detecting foreign objects on a complex dynamic variable background in a surveillance zone. The technical outcome of the invention is the increased accuracy of detecting objects with simultaneous increase in speed and visibility. The method involves receiving and forming two images on two points spread in space and single registration of each fragment of the reference and compared digital images by two identical viewing systems. Each viewing system is made based on a multi-element high-speed light detector, for example, a CMOS - matrix, and contains an objective. Both viewing systems are fitted at a shorter, compared to the displacement from the presumed location of the object, distance between them, parallel each other and directed at the surveillance area. Analysis of the images is done by determining the displacement value Δ of characteristic fragments of the compared image with the corresponding fragments of the reference image with their maximum possible coincidence in the direction of parallactic shift with subsequent identification of the selected and background objects from the obtained displacements Δ. Based on the obtained displacements Δ, three dimensional images of objects can be formed and the distance to each one of them can be determined.
EFFECT: increased accuracy of detecting objects with simultaneous increase in speed and visibility.
6 cl, 3 dwg
Title | Year | Author | Number |
---|---|---|---|
METHOD OF SELECTING OBJECTS ON REMOTE BACKGROUND | 2007 |
|
RU2363018C1 |
METHOD FOR HIGH-SPEED DETECTION OF OBJECTS ON HIGH-CONTRAST DYNAMICALLY VARIABLE BACKGROUND | 2014 |
|
RU2576471C2 |
METHOD OF SELECTING MULTIPLE OBJECTS ACCORDING TO RANGE | 2012 |
|
RU2498336C1 |
METHOD OF DETECTING OBJECT IN SURROUNDING SPACE | 2008 |
|
RU2383900C2 |
METHOD OF SELECTING AN OBJECT ON A DISTANT BACKGROUND WITH OPTICAL SYSTEMS FROM AN AIR CARRIER | 2019 |
|
RU2714701C1 |
METHOD OF LOCATING OBJECT IN SURROUNDING SPACE | 2013 |
|
RU2535631C2 |
METHOD OF SELECTING OBJECTS ON REMOTE BACKGROUND | 2013 |
|
RU2552123C2 |
PASSIVE DETECTION OF MINIATURE DRONES AND DETERMINATION OF THEIR COORDINATES | 2014 |
|
RU2574224C1 |
METHOD FOR DETECTING AND IDENTIFYING TARGETS CHARACTERISTICS BASED ON REGISTRATION AND PROCESSING OF RAYS FROM OBJECTS IN OBSERVED SPACE AND DEVICE FOR ITS IMPLEMENTATION | 2021 |
|
RU2760845C1 |
METHOD OF DETECTING SMALL UNMANNED AERIAL VEHICLES | 2014 |
|
RU2559332C1 |
Authors
Dates
2008-08-10—Published
2006-10-05—Filed