CN107124581A

CN107124581A - Video camera running status and suspected target real-time display system on the electronic map

Info

Publication number: CN107124581A
Application number: CN201610117421.1A
Authority: CN
Inventors: 支录奎; 张福海; 支野
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-02-24
Filing date: 2016-02-24
Publication date: 2017-09-01

Abstract

How to be sitting in video monitoring command hall and pass through electronic map, it is seen that whole emphasis public security region video camera running status, while it also seen that suspicion (alert) target trajectory and position are concerning important.A kind of video camera running status and suspected target real-time display system on the electronic map are researched and developed, it is particularly important to provide real-time clue for maintenance of camera and cracking of cases.Set up two and three dimensions electronic map, the two-dimensional video monitoring image and three-dimensional video monitor image of video camera, bundled respectively with camera icon geographical coordinate on electronic map, camera review information geography coordinate geographical environment synchronous with electronic map geographical coordinate geographical environment, matching, fusion must be reached, the video monitoring image information that society is installed camera icon on virtual electronic map is corresponding to be shown, so as to reach the purpose for finding camera status and tracking two dimension or three-dimensional suspicion (alert) target in real time on the electronic map.

Description

Video camera running status and suspected target real-time display system on the electronic map

Technical field

The invention belongs to video object visualization Display Technique.

Background technology

In recent years, video installation number rises year by year, and video-frequency networking scope constantly expands, maintenance of camera and in video camera Angular field of view finds alert target concerning important, how according to the camera icon condition adjudgement video camera quality on electronic map It is the task of top priority whether to have alert.Study a kind of video camera running status and alert (suspicion) target is real-time on the electronic map Display system, it is possible to resolve the problem of existing above.

The content of the invention

At present, China's public safety video monitoring is built working application work paces and accelerated, and video monitoring coverage rate is year by year Rise, be that collection emphasis public security people from region and Che movements target are laid a good foundation.But, slapped in real time on virtual electronic map The running status and alert (suspicion) target trajectory and mobile position for holding video camera also need anxious to be resolved.

Brief description of the drawings

Accompanying drawing 1 is that video camera running status shows block diagram in real time on the electronic map

Accompanying drawing 2-1 alerts target shows block diagram in real time on Two-dimensional electron map

Accompanying drawing 2-2 alert targets show block diagram in real time on electronic three-dimensional map

Embodiment

1st, camera acquisition to vision signal after exported through two-way, all the way vision signal detected through state detector be It is no to have vision signal, if thering is vision signal state detector output end " A " current potential to be high potential " 1 ", if without video signal condition Detector output end " A " current potential is low potential " 0 ".Another road vision signal is divided vision signal through alert automatic identifier Analysis is handled, if there is suspected target (alert) appearance in the range of camera angles, alert automatic identifier output end " B " current potential is High potential " 1 ", if occurring in the range of camera angles without suspected target (alert), alert automatic identifier output end " B " electricity Position is low potential " 0 ".After " A " end high and low electric potential signals different with " B " end are handled through intelligent controller again, hold defeated from " C " Go out the signal of video camera different conditions, loaded and associated with the camera icon on GIS rendering modules, in Two-dimensional electron Three kinds of different conditions results (Fig. 1) are shown on figure, i.e.,：Camera icon is green when video camera is normal, when video camera is faulty (offline) camera icon is red, and camera icon is green when suspected target (alert) occurs in camera angles scope and dodges Dynamic (alarm)

2nd, after system loads two-dimension GIS scene, when user clicks on the camera icon on Two-dimensional electron map, system is led to Two-dimensional coordinate modular converter is crossed, the screen coordinate that mouse is clicked on is converted into two-dimentional geographical coordinate (Fig. 2-1).Based on two-dimentional geographical Coordinate, by data base querying correspondence camera number, and by decoding video stream module, loads two-dimensional video image.

3rd, when user inputs suspected target feature, target signature and feature database can be carried out fuzzy matching by system, be obscured SVD methods will be used during matching, target signature singular value feature vector is extracted, feature is then carried out using Rough Set Reduction algorithm The feature of selection, is finally carried out COS distance similitude with the characteristic vector in feature database and matched, extract similarity most by selection High suspected target, and two-dimentional geographical coordinate is exported, the two-dimensional video image of correspondence position is finally transferred, when user's circle choosing two dimension During electronic map region, system first can be converted to screen coordinate scope on two-dimentional geographic coordinate range (the record upper right corner and a left side Inferior horn), be then based on two three-dimensional coordinate modular converters, by 2 dimensional region Coordinate Conversion be 3D region coordinate, and then load pair Answer three-dimensional scenic (Fig. 2-1).

4th, after system loads three-dimensional scenic, when user's mouse clicks the camera icon on electronic three-dimensional map, system Can by three-dimensional coordinate modular converter by screen taps Coordinate Conversion be actual geographic position coordinates, then pass through 3 D video solution Code module, loads the 3 D video of corresponding region.Decoder module will be extracted two groups of sequences by frame from 3 D video, be respectively deep Information sequence and texture sequence are spent, by selecting optimal scene mapping algorithm, reaches what 3 D video was merged with three-dimensional scenic Purpose, realizes the target (Fig. 2-2) of picture-in-picture.

Claims

1. a kind of GIS-Geographic Information System of the real-time tracking suspected target in two dimension or electronic three-dimensional map, is by emphasis public security area The camera icon on video camera and electronic map installed in domain corresponds, and reaches two dimension or three in actual environment Tie up alert movement target synchronous considerable in virtual environment.

2. it is characterized in that according to claim 1：Camera icon on electronic map can be divided into three kinds of states, and green color is taken the photograph Camera icon is that video camera is normal, and the camera icon of red color is fault of camera, and the camera icon flashed is to take the photograph machine picture Surrounding has alert target.

3. it is characterized in that according to claim 1：Real two dimension can be seen in the camera icon clicked on Two-dimensional electron map Video image, and control camera pan-tilt to rotate and lens focus regulation.

4. it is characterized in that according to claim 1：Camera icon peripheral region on selected Two-dimensional electron map, can show this The electronic three-dimensional map in region.

5. it is characterized in that according to claim 1：Real shooting can be seen in the machine image mark of taking the photograph clicked on electronic three-dimensional map Machine 3 d video images.

6. it is characterized in that according to claim 4,5：Certain video camera can be shown in larger electronic three-dimensional map region simultaneously The 3 d video images (picture-in-picture) of small range.

7. it is characterized in that according to claim 1：Suspected target characteristic information is inputted to the system, will be in two dimension or three-dimensional electricity The automatic mobile position of display on sub- map.