Multi-stage picture division based fast digital video control method

The present invention belongs to a method for realizing quick digital video control through a computer in a video monitoring system. The method can realize that a user can rapidly control an image to the assigned position only by clicking once with a mouse, but the traditional method is capable of achieving the goal through control operations for a plurality of times. The main principle is that first, the visual field of each camera is divided according to angles, to form multistage visual field; then each visual field image is displayed on a computer screen, the screen is equally divided into a plurality of parts according to the relation between the displayed visual field and each sub visual field, and each sub visual field and the capture range are marked out, therefore multistage image division corresponding to the multistage visual field is formed, and each image and each stage of visual field are correlated through the preset point of each camera. Through the system realized in the ...

Method for realizing digital controlling flash lamp

This invention discloses a realization method for a digital control flash lamp composed of four parts: a lamp, a power supply part, a control part and a digit interface part, among which, the lamp is an ordinary flash tube, the supply is responsible for providing power to the lamp, the control part realizes on/off control, the interface part realizes on/off control and provides interface to the main body to realize complete digitalization by mutual cooperation among them. The controllable parameters are on/off of the flash lamp and flash delay time, when its delay time is not long, zero charge time can prolong service life the lamp.

Parking lot remote control method and device, electronic equipment and medium

The invention belongs to the technical field of parking lots, and discloses a parking lot remote control method and device, electronic equipment and a medium. The method comprises the following steps: when a parking lot guarding person on site receives an entrance special request demand proposed by a driver at the entrance of a parking lot, a terminal receives account information input by the parking lot guarding person; in response to the input of the account information, displaying a first operation interface; utilizing a first operation interface to obtain first special situation information with a vehicle picture, a first record about special situation demand communication and a gate opening reason; and sending the first special situation information to a parking management end, so that the parking management end responds to the received first special situation information, stores the first special situation information, marks the vehicle of the driver as a special situation vehicle ...

Video positioning and parameter computation method based on picture sectioning

The invention relates to a method based on a multilevel split screen for image location and parameter calculation, which mainly comprises splitting a monitoring visual field, splitting a monitoring screen, linking the split screen with the split visual field at a predetermined spot of a camera, defining the parameters of the last level screen (mainly comprising a horizontal initial angle, an end angle, a distance closest to the camera monitoring point, a distance farthest to the camera monitoring point and a region name) and defining a calculation method of the target parameters (mainly involving the calculation of angles and distances to the camera). With the inventive method, the system can automatically feedback the information (geographical position and distance) of the monitored pointaccording to the request of the operator during the monitoring process, and is significant in the fields of forest-fire prevention, frontier defense, water way and fire control, as well as is helpfulfor ...

Multi-stage picture division based fast digital video control method

The present invention belongs to a method for realizing quick digital video control through a computer in a video monitoring system. The method can realize that a user can rapidly control an image to the assigned position only by clicking once with a mouse, but the traditional method is capable of achieving the goal through control operations for a plurality of times. The main principle is that first, the visual field of each camera is divided according to angles, to form multistage visual field; then each visual field image is displayed on a computer screen, the screen is equally divided into a plurality of parts according to the relation between the displayed visual field and each sub visual field, and each sub visual field and the capture range are marked out, therefore multistage image division corresponding to the multistage visual field is formed, and each image and each stage of visual field are correlated through the preset point of each camera. Through the system realized in the ...

Truck space guiding system and method based on images

The invention relates to truck space guiding system and method based on images. A plurality of cameras are arranged at the periphery of a parking lot truck space, images acquired by the cameras are transmitted to a host computer, and the host computer judges whether truck spaces of various relevant regions are occupied or not through analyzing contents of the acquired images. The invention is characterized in that: firstly, positions of regions of various truck spaces in the images are needed to be defined; secondly, the painting treatment is carried out on the ground of various truck spaces for improving the comparison of images with trucks or without trucks and enhancing the accuracy of the image analysis, the painted images have strong comparison and can not exist in common truck bodies; thirdly, the host computer needs to continuously scan various truck spaces corresponding to the cameras in a circulating way and analyze whether region images related to various truck spaces meet non-truck ...

一种新型的高速公路超速抓拍系统

The invention discloses a novel express highway overspeed grasp shoot system wherein super short U flash is used as the light source in combination of the accurate synchronization technology for controlling a flash lamp proceed flashing in the integral time of a field image, because the moment flash luminous intensity is much greater than the ambient light, it is realized that the field image quality being dependent on flash time, the microsecond level time window for the grasp shoot image can be achieved.

Non-motor vehicle access control method, system and equipment and storage medium

The invention relates to a non-motor vehicle access control method, system and device and a storage medium, and relates to the technical field of parking management. The method comprises the following steps: performing vehicle type sensing on vehicles entering and exiting a parking lot through non-motor vehicle sensing equipment; when it is sensed that the vehicles passing through the entrance and exit are non-motor vehicles, a first guiding prompt is output; the first guide prompt is used for guiding a use object of the non-motor vehicle to approach a face recognition device so as to perform face recognition through the face recognition device to obtain face recognition data; matching the face recognition data with a registered face database to obtain a face matching result; and controlling a lane gate based on a face matching result so as to carry out access control on the non-motor vehicle. By adopting the method, the accuracy of non-motor vehicle access control can be improved.

Method for obtaining vehicle speed accurately with video mode

Video positioning and parameter computation method based on picture sectioning

The invention relates to a method based on a multilevel split screen for image location and parameter calculation, which mainly comprises splitting a monitoring visual field, splitting a monitoring screen, linking the split screen with the split visual field at a predetermined spot of a camera, defining the parameters of the last level screen (mainly comprising a horizontal initial angle, an end angle, a distance closest to the camera monitoring point, a distance farthest to the camera monitoring point and a region name) and defining a calculation method of the target parameters (mainly involving the calculation of angles and distances to the camera). With the inventive method, the system can automatically feedback the information (geographical position and distance) of the monitored point according to the request of the operator during the monitoring process, and is significant in the fields of forest-fire prevention, frontier defense, water way and fire control, as well as is helpful ...

Flash lamp signal shunting triggering device and method in field of intelligent traffic

The invention discloses a flash lamp signal shunting triggering device and a flash lamp signal shunting triggering method in the field of intelligent traffic. The device comprises a flash lamp signal acquisition module, a flash lamp signal odd-even judgment module, a signal separation module and a signal sending module. After two continuous flash lamp triggering signals are subjected to equalization and odd-even judgment, data is separated into two paths and a dry-contact triggering way which is commonly used by flash lamps is switched to drive two flash lamps to flash respectively, so that the aim of performing continuous snapshot of two pictures for normal light compensation under the condition of low brightness by image forensic equipment is fulfilled; and furthermore, the device and the method have the advantages of signal enhancement, lossless conversion, simple hardware, low cost and convenience in function change.

Method for obtaining vehicle speed accurately with video mode

The invention discloses a method for precisely obtaining vehicle speed by video, which is essentially characterized in that: 1. a measuring vidicon is needed to be arranged right above driveways to be measured; 2. road surface is needed to be treated, which comprises drawing a plurality of stripes that have the same direction with vehicle driving direction and drawing two horizontal marker lines at two ends of the stripes; a main unit continuously scans the stripes to obtain speed and scans the horizontal lines to obtain evidence whether arranging position offsets or not; 3. the invention also makes uses of a characteristic that time interval of video signals each time is the same and uses light filling measure.