CN1257255A - System and method for field information acquisiton,information dignment and information processing - Google Patents

Abstract

The present invention relates to an equipment for making field information acquisition, localization and real-time processing, including a field image video information sampling unit, a camera for sampling field video information and a computer device for simultaneously displaying moving camera shooting trace, and it is characterized by that said equipment also includes an image location and processing unit with location antenna for displaying location of video image sampling point and a field work centre processor equipped with first interface for making communication with described camera sampled image, second interface for making communication with described computer device and third interface for making communication with location antenna.

Description

The System and method for of carrying out field information acquisition, location and handling

The present invention relates to a kind of System and method for of carrying out field information acquisition, location and processing, the automatically performing of particularly a kind of collection that is used for open-air image/video data and location, in real time, the System and method for of in-line processing.

Normally very complicated work of collection of open-air image/video information, the staff is for obtaining data as far as possible accurately, to carry out a large amount of shooting work in the investigation zone, get back to office then and carry out editing and processing again, therefrom screen the image/video data of the value of withing a hook at the end by work such as montages after, again it is kept on the magnetic recording medium, uses when need treating in the future.If will need the scene system of gathering, be used for such as the one-tenth number of the statistics scene of clapping or be used for mapping operations, the acquisition method of this traditional open-air image/video information also far can not be satisfied the demand.Because the collecting work of this image/video information does not have locating device, so the image/video data of being gathered according to the shooting personnel is difficult to find out its definite longitude and latitude.Way like this, not only inefficiency still can not provide foundation for accurate analysis mapping by complicated like this work during its main defective.

The positioning system of being used widely in the actual life is a kind of auto navigation Positioning System (GPS), it only only limits to automobile in the process of moving, driving trace in time offered be arranged on computer apparatus in the pilothouse, the driver will know own definite longitude and latitude of living in like this, and is unlikely to get lost.

Along with development of technology, it in the actual life demand that satisfies people, the camera that a kind of GPS of being called also occurred---positioning system camera, be that the photo that people take pictures can show the moment of taking pictures definite longitude and latitude of living in, obviously, it is the collection of static scene that this GPS of being called camera also only only limits to, and can't be used for the collection location of consecutive image.

Bad is, because the fast pace of the modern life, brought many realistic problems to need to solve in time, traffic, road construction, agricultural sentiment on the expressway looked into such as wanting to understand, during the situation of scene of fire etc., people need in time to grasp situation there, handle so that can make timely the emergency that may free in the surrounding environment.Obvious above-mentioned one type of prior art syringe can't satisfy emergent needs.

Therefore, need provide a kind of execution field information acquisition, location of more convenient and quicker and the method and system of handling, this system's energy: (1) in time offers the analyst with the image/video data of collection in worksite; (2) determine the geographic position at a certain image kind scene place; (3), obtain to specify the relevant image information of sampled point by automatic playback location; (4) by real-time image/video DATA PROCESSING, in time determine relevant area ratio, determine or revise the attribute data and the boundary demarcation of thematic map.

Fundamental purpose of the present invention provides a user-friendly computing machine integrating device, be used for the automatically performing of the collection of open-air image/video data and location, in real time, in-line processing.

Another purpose of the present invention provides a kind of disposal route that open-air information is gathered, and being used for time is that clue is accurately located.

Another object of the present invention provides a kind of method with sampling unit and localization process cell link, be used for the automatically performing of the collection of open-air image/video data and location, in real time, in-line processing.

According to an aspect of the present invention, the device that field information acquisition is positioned and handles in real time comprises an open-air image/video data sampling unit, be provided with the video camera that is used for open-air video sampling, be used for showing simultaneously the computer apparatus of motion shooting track, wherein this positions with the device of handling in real time field information acquisition and also comprises

A framing and a processing unit that is provided with positioning antenna is used on described computer apparatus showing the location of particular video frequency image sampling point; With

A field work center processor is provided with:

A) first interface is used for communicating by letter with described video camera institute sampled images;

B) second interface is used for communicating by letter with described computer apparatus;

C) the 3rd interface is used for communicating by letter with described positioning antenna.

According to another aspect of the invention, the disposal route that open-air information is gathered comprises the following steps:

A) setting is used to show that the computer clock of particular video frequency image sampling point location is consistent with the video camera clock;

B) setting-up time is chosen institute's sample video image and is stored in described computer with the BMP form at interval;

The time and the date and time information that show on the camera system during c) with images acquired generate the trail file name automatically;

D) each layer is created tables of data, in the tables of data of each layer, generate oid field at this automatically, each entity in the corresponding described figure layer of each OID value.

According to another aspect of the invention, the disposal route that open-air information is gathered comprises the following steps:

A) setting is used to show that the computer clock of particular video frequency image sampling point location is consistent with the video camera clock;

B) setting-up time at interval;

C) choose institute's sample video image and be stored in described computer with the BMP form.

This step also comprises:

The time and the date and time information that show on the camera system during d) with images acquired generate the trail file name automatically;

E) in the picture library of described computer, only deposit the map that a width of cloth is edited sampling, so that in system, can operate from many places;

F) described map for editor's sampling is provided with the sample level that is arranged on ground floor, is arranged on the sampling route layer of the second layer, and is arranged on the 3rd layer soil utilization layer;

G) each layer is created tables of data, in the tables of data of each layer, generate oid field at this automatically, each entity in the corresponding described figure layer of each OID value.

This step also comprises:

F) below described soil utilizes layer, generate road buffering district floor automatically, be used for showing and operation;

G) below described sampling route layer, generate the overlapping layers that is used for superimposed operation automatically, compound for a plurality of aspects of described road buffering district's floor and the setting of described map.According to a further aspect in the invention, a kind of computer system that field information acquisition is positioned and handles in real time comprises the program of carrying out following processing:

A) open first of the picture of gathering, the temporal information that is provided on the image is provided;

B) trail file that temporal information is complementary on title and the described image that opens file;

C) date and time information of the described trail file of automatic record on the sampling time tablet, and according to described first image information input time;

D) setting-up time step-length;

E) locate the sample level that desire is added a series of anchor points, set up Database Lists automatically simultaneously, comprising: OID sign indicating number, the map title, longitude and latitude, trajectory direction, temporal information;

F) in playback institute images acquired video information process, add up according to described time step and the described time that is input on the sampling time plate, choose the time of required every width of cloth image;

G) there is time on the described sampling time plate according to each width of cloth image, searches the trail file that is complementary, extract the pairing longitude and latitude of trail file of this time.

Below with reference to accompanying drawings above-mentioned and other purpose of the present invention and advantage are described, accompanying drawing is the part of explanation, and following explanation is an example with a preferred embodiment of the present invention, but the invention is not restricted to this.

In the accompanying drawing:

Fig. 1 shows the structural drawing according to system of the present invention;

Fig. 2 shows the binding block diagram according to system of the present invention field sampling unit;

Fig. 3 shows the field sampling unit hardware structural drawing according to system of the present invention;

Fig. 4 shows according to system of the present invention, the functional block diagram of its application software;

Fig. 5 is an overall system operating process of the present invention;

Fig. 6 is the legend that the motion sampled subsystem of system of the present invention shows;

Fig. 7 is that the parameter of the image acquisition subsystem of system of the present invention is provided with legend;

Fig. 8 is the legend of demonstration of the framing subsystem of system of the present invention;

Fig. 9 is the legend of demonstration of the agricultural feelings sampled subsystem of system of the present invention.

Hereinafter, will be applied to agricultural feelings with System and method for of the present invention and be sampled as the present invention of example detailed description.

The automatically performing of collection that is used for open-air image/video data of the present invention and location, in real time, system (GVG system) structure of in-line processing is illustrated in Fig. 1, carry out on-line real-time by the image/video information that the field sampling unit is gathered and handle, therefore can screen conditionally.Wherein position with the device of handling in real time and comprise an open-air image/video data sampling unit, be provided with the video camera that is used for open-air video sampling, be used for showing simultaneously the computer apparatus of motion shooting track, and field work center processor, the binding block diagram of this processor hardware structure as shown in Figure 2, be R232 first interface that native system is integrated with a standard, be used for the camera communication of using with field sampling; One second interface is used for communicating by letter with the computer apparatus of computing with Flame Image Process; A positioning antenna interface is used for communicating by letter with positioning antenna (gps antenna).In addition, a field work center processor of the present invention is for ease of the convenience of field work, also be provided with convertible power interface, as shown in Figure 3, this processor is except being provided with the interface that matches with civil power, also be provided with a socket special and automobile cigarette lighter matches especially,, in device, also be provided with the DC12-AC220V inversion unit in order to supply with computer apparatus, video camera and GPS orientator power supply simultaneously.

System of the present invention is a simultaneously integrated framing and processing unit that is provided with positioning antenna is used for showing the location of particular video frequency image sampling point on described computer apparatus.The module of its software function is illustrated among Fig. 4.Its composition has: motion sampled subsystem, image acquisition subsystem, framing subsystem, agricultural feelings sampled subsystem and also be equipped with the image transitions subsystem especially.

Positioning system is normally mated according to the function of certain attribute, such as according to longitude and latitude, and direction vector and time parameter etc., existing is that the positioning system of function coupling all has inaccurate clock to cause mating inaccurate problem with time.Positioning system of the present invention is that function positions with time, has solved this problem well with following method.At first, the time of the video camera of setting recording image will be aimed at the time of the notebook of record position, in the time of could guaranteeing framing handled, is that clue is accurately located according to the time.Concrete steps are: setting is used to show that the computer clock of particular video frequency image sampling point location is consistent with the video camera clock; For reducing positioning error, it is littler that the relative distance of video camera and notebook is wanted, as being arranged in the same car; Extract the temporal information of video camera, and this temporal information is added on the screen in case afterwards during localization process according to this time to framing; Time that shows on the camera system during with images acquired and date and time information generate the trail file name automatically, be that title (such as 18 samplings in the open air on June 29, the track name just saves as 6-29-18.TCK automatically so) is like this so that the easier trail file that finds the some time during with aftertreatment during the moon as the trail file name during day automatically with sport car at that time; Each layer is created tables of data, in the tables of data of each layer, generate oid field at this automatically, each entity in the corresponding described figure layer of each OID value.Secondly, can divide free mode and automated manner to sample according to above-mentioned steps.The image of gathering in free mode does not have certain time interval for selecting icon collection, and the figure title successively adds up on time automatically.Under automated manner, 1 second at a certain time interval and even a few minutes gather the information of video reproduction, be saved as BMP figure title automatically and with successively from cumulative number.For long-time the collection provides possibility, title is removed 0 of front with protection computer automatically with 8 word length storages and the 1st position 1, and the title contraposition of automated graphics location is had problems.Then according to said method if the setting-up time step-length is 5 seconds, with the 10000000 BMP picture name that begin to add up, the BMP picture name that is filtered out should be followed successively by 10000005,10000010 etc.

Please refer to Fig. 5, the processing procedure of this aspect is described in detail in detail.The GVG farming feelings sampling system of present embodiment at first should be carried out geographical environment information set-up procedure, promptly information such as the landform of perform region, traffic, administrative division division are carried out vector quantization, this vector quantization process also can be changed by the polar plot of extended formatting, adds the remote sensing analysis figure of Bitmap form then.

The motion sampled subsystem

After the vehicle GPS binding is finished, in the setup menu serial ports is set now, output statement at interval, selected then real-time follow-up, at this moment prompting occurs, click " affirmation " button, statement promptly occurs at interval, input trajectory storing path and trail file name, the form of this trail file name are " moon _ day _ time .TCK ".Open composite diagram simultaneously, its screen as shown in Figure 6.After this, system's shooting of can moving on the spot, when obtaining image/video information, the sampled point geographical position coordinates that gps system was determined when system can records photographing.

Image acquisition subsystem

Image acquisition subsystem is by being arranged on the image pick-up card in the computer apparatus, by time step length the picture in the shooting data being carried out craft and select or select automatically, simultaneously selected image file being numbered in order.Concrete parameter set-up mode as shown in Figure 7; At first, system be provided with image acquisition at interval default value be 1 second.Select display mode.32 or 24 very color 800 * 600 patterns of suggestion sampling are to reach ideal effect.

Gather the present image file under image fixes state, each operation store piece image filename increases progressively automatically, simultaneously document image filename in login.System is images acquired in two ways, promptly gathers automatically and manually gathers.After this, can carry out synchronous playing and fix images acquired; Control screen-picture show state, after the selection " synchronous playing ", screen is consistent with the video recorder picture; After selecting " fixing ", screen-picture is static, and then can store this still frame.

The framing subsystem

By video camera and each self-recording temporal information coupling of gps system, make image document corresponding, and the pairing sampled point of image is added in the corresponding figures layer, as shown in Figure 8 with the sampling point position coordinate.

The framing process is handled the main points key and how the time of image was corresponded to the track time, the wherein visual location process following processing procedure of sampling: open the picture of gathering first, extract the temporal information (month day Hour Minute Second) that is provided on the image; Open the trail file that comprises this temporal information, this trail file name is named during with the day time code moon; When opening this trail file software program automatically the information of month day is recorded in the date hurdle of sampling time tablet (year with at that time year for default) again according to image in Hour Minute Second manually insert the sampling time plate; It is the Fixed Time Interval of finding out during for automatic batch processing location before the width of cloth figure that subsystem provides following instrument with the aid of pictures of the width of cloth, if it (is to gather automatically at interval with 5 seconds during as image acquisition at interval that unified time is arranged, interval under the last width of cloth between the width of cloth just is 5 seconds) so can according to this at interval fixed step size for how long, Hour Minute Second in the time plate is carried out from add up (as every width of cloth figure interval was that step-length is to be added up automatically by the time of last piece image in 5 second sampling time to insert the time plate in 5 seconds in 5 seconds, and the Hour Minute Second of first width of cloth figure wants operating personnel to insert according to image); The time of this sampled images exists automatically on the sampling time plate and is corresponding one by one with image.

In order to make framing in electronic chart, at first to add a sample level, promptly be positioned among the sample level XX, be the anchor point that will be added in the sample level simultaneously, build a Database Lists, the field in this database column comprises information such as OID sign indicating number, the map title, longitude and latitude, trajectory direction time.After these preliminary works are carried out, can carry out automated graphics and locate i.e. batch processing.At this moment image is opened since first more than of the width of cloth 10000000.BMP, and according to add up out the orthochronous of every width of cloth image of time step and first width of cloth image the time on the sampling time plate of manually being input to, there is time on the sampling time plate according to each width of cloth image, in corresponding trail file, find this time, and longitude and latitude that should time institute's corresponding record.Deposit during these information of same in the record of sample level XX database, each width of cloth image has just had a corresponding point in sample level like this.In elected this time, its image and database will show, and just can the soil utilization layer in the electronic chart be made amendment according to image document.

It should be noted that, because images match is to mate with the tracing point time of trail file record according to the image time, receive under the situation about going wrong at gps satellite signal, make under the situation that positioning signal loses,, a certain image recording might occur and can't determine corresponding anchor point if be that unit carries out the time coupling with the second, the method of systematic sampling fuzzy matching this moment, can automatically seek the tracing point nearest, preferably, error is arranged in 10 seconds scopes with it.

Because the contraposition of the video camera depth of field is equipped with influence, expansion along with sample range, deviations also increases simultaneously, for addressing this problem, except that should keeping certain camera angle as best one can, best is to make camera lens vertical with direction of motion, and calculates lead when mating in the time, and the formula of institute's basis is:

Cosθ×L＝M (1) $\frac{M}{v\×\frac{1000}{3600}}=t----\left(2\right)$

Wherein, θ is video camera and reversing of motion angulation, and L is the video camera depth of field; M is vertical potential difference; V represents the movement rate of automobile; T represents to answer lead.For example, when taking faithfully, with 40 kilometers/hour of the speed of a motor vehicle, 100 meters of the shooting depth of field, video camera becomes 30 ° and calculates with direction of motion, then according to formula (1) as can be known vertically the depth of field should be: 86.6 meters of Cos30 ° * 100 ≈ according to formula (2) as can be known Timing Advance be:

Promptly should transfer slow 8 seconds to the video camera clock, to offset this error.Certainly, at turn inside diameter or do under the situation of non-uniform movement, then must accurately locate by artificial intervention.

In addition, the shooting sampling often hockets at left and right sides both direction, and the right and left may be diverse situation, so must be distinguished.Because the shooting data is continuous, there is direction of motion can obviously distinguish left and right directions, and in case after gathering into static images, just can't discern, so the present invention takes to determine its direction in image acquisition, and this direction is recorded in the attribute database.

Farming feelings sampled subsystem

Farming feelings sampled subsystem can be used for for information about that agricultural mutual affection is analysed and work such as the yield by estimation by inquiry on composite diagram and statistics, and can determine or revise the attribute data and the boundary demarcation of thematic map according to the sampled images information of remote sensing figure and corresponding sampled point.Therefore, this is the purpose that this GVG system finally will reach, and promptly land-use map is revised and compiled picture according to image document, and its process is:

(1) opens polar plot, can comprise soil utilization floor, the sample level that in the framing subsystem, newly adds in this polar plot, also water system floor, block floor, mark floor, linear sampling floor, path layer and road buffering district floor or the like can be arranged.

(2) road is to prepare for buffering (BUFFER) computing that provides towards district's floor: (a) BUFFER computing and superimposed computing are the algorithmic tools that this subsystem offers the personnel that repair figure, and this subsystem also provides the statistical calculation worker energy, degree of rectificating computing.(b) also provide the political affairs figure instrument of when land-use map being made amendment, using: click, add entity, merge line, merge polygon, break, change data, the instrument of maintenance data base attribute number according to positioning image.(c) also provide attribute query and freely drag, delete or the like and the layer management device.(d) and provide repair the data readback window these in the real-time sampling subsystem, extract to before the instrument of data readback.(e) more provide the basic tool of graphic operation to amplify, dwindle, move, repaint etc.

Claims (12)

1, a kind of field information acquisition is positioned with the device of handling in real time comprises an open-air image/video data sampling unit, be provided with the video camera that is used for open-air video sampling, be used for showing simultaneously the computer apparatus of motion shooting track, it is characterized in that this device that field information acquisition is positioned and handle in real time also comprises:

A framing and a processing unit that is provided with positioning antenna is used on described computer apparatus showing the location of particular video frequency image sampling point; With

A field work center processor is provided with:

A) first interface is used for communicating by letter with described video camera institute sampled images;

B) second interface is used for communicating by letter with described computer apparatus;

C) the 3rd interface is used for communicating by letter with described positioning antenna.

2, device according to claim 1 is characterized in that described field work center processor comprises an outlet that matches with common civil power and one and the adaptive plug of automobile cigarette lighter.

3, device according to claim 2 is characterized in that described field work center processor comprises the switch controller of power supply and a power change-over switch that can be converted into AC power from automobile power source.

4, a kind of disposal route that open-air information is gathered is characterized in that this method comprises the following steps:

A) setting is used to show that the computer clock of particular video frequency image sampling point location is consistent with the video camera clock;

B) setting-up time at interval;

C) choose institute's sample video image and be stored in described computer with the BMP form.

5, method according to claim 4 is characterized in that this method also comprises the following steps:

The time and the date and time information that show on the camera system during d) with images acquired generate the trail file name automatically;

E) in the picture library of described computer, only deposit the map that a width of cloth is edited sampling, so that in system, can operate from many places;

F) described map for editor's sampling is provided with the sample level that is arranged on ground floor, is arranged on the sampling route layer of the second layer, and is arranged on the 3rd layer soil utilization layer;

G) each layer is created tables of data, in the tables of data of each layer, generate oid field at this automatically, each entity in the corresponding described figure layer of each OID value.

6, method according to claim 5 is characterized in that this method also comprises the following steps:

F) below described soil utilizes layer, generate road buffering district floor automatically, be used for showing and operation;

G) below described sampling route layer, generate the overlapping layers that is used for superimposed operation automatically, compound for a plurality of aspects of described road buffering district's floor and the setting of described map.

7, method according to claim 4 is characterized in that this method also is included in a certain image can't determine its anchor point the time, looks for the tracing point nearest with it automatically in error range.

8, method according to claim 4, it is characterized in that this method also be included in video camera time and machine time when being complementary computing time lead, be used for the slow video camera clock of corresponding accent.

9, method according to claim 4 is characterized in that writing down when this method also is included in image acquisition direction in attribute database.

10, a kind of computer system that field information acquisition is positioned and handles in real time comprises the program of carrying out following processing:

A) open first of the picture of gathering, the temporal information that is provided on the image is provided;

B) trail file that temporal information is complementary on title and the described image that opens file;

C) date and time information of the described trail file of automatic record on the sampling time tablet, and according to described first image information input time;

D) setting-up time step-length;

E) locate the sample level that desire is added a series of anchor points, set up Database Lists automatically simultaneously, comprising: OID sign indicating number, the map title, longitude and latitude, trajectory direction, temporal information;

F) in playback institute images acquired video information process, add up according to described time step and the described time that is input on the sampling time plate, choose the time of required every width of cloth image;

G) there is time on the described sampling time plate according to each width of cloth image, searches the trail file that is complementary, extract the pairing longitude and latitude of trail file of this time.

11, handling procedure according to claim 10, it is characterized in that described handling procedure also comprises stores described time and latitude and longitude information in the record of described sample level database.

12, handling procedure according to claim 10 is characterized in that described handling procedure comprises degree of rectificating computing.

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