CN106096508A - A kind of image determines the method and device that target is covered - Google Patents
A kind of image determines the method and device that target is covered Download PDFInfo
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- CN106096508A CN106096508A CN201610370920.1A CN201610370920A CN106096508A CN 106096508 A CN106096508 A CN 106096508A CN 201610370920 A CN201610370920 A CN 201610370920A CN 106096508 A CN106096508 A CN 106096508A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/40—Scenes; Scene-specific elements in video content
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/40—Scenes; Scene-specific elements in video content
- G06V20/46—Extracting features or characteristics from the video content, e.g. video fingerprints, representative shots or key frames
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Abstract
The invention discloses and a kind of image determines the method and device that target is covered, relate to technical field of image processing, solving in prior art in target in the case of suddenly disappearing, follow the trail of because being mistaken for seriously blocking the stopping caused, the technical problem of effect is followed the trail of in impact.Wherein, method includes: follow the tracks of same target in continuous print frame of video；If described target suddenly disappears during following the tracks of, then the track rejection frame of video that described target suddenly disappears is carried out image and clearly process；Described target is searched in described track rejection frame of video after described clear process；If not searching described target, it is determined that described target is blocked.
Description
Technical field
The present invention relates to technical field of image processing, particularly to the method and dress that determine in a kind of image that target is covered
Put.
Background technology
Motion target tracking is the core content of computer vision research, the occlusion issue occurred during particularly following the tracks of
Become the key factor limiting track algorithm robustness.For the occlusion issue in rigid motion target following, adaptive to target
Answer piecemeal, make each sub-block have more significantly feature, increase and block the degree judging to mate with sub-block；Then by each sub-block
Accurately judge the region that is blocked, utilize the remaining sub-block not being blocked to carry out intensity correlation matching and table under occlusion
Certainly, carry out the tracking of blocking of target, but the tracking for the violent non-rigid targets of small volume and deformation comparison has office
Sex-limited.The track algorithm that non-rigid targets is combined by mean shift algorithm and particle filter algorithm, at unshielding or not
Under serious circumstance of occlusion, use the mean shift algorithm improved；Under serious circumstance of occlusion, it is believed that target lost contact or missing, stop
Only follow the trail of.
But, in the case of some seriously blocks, as target enters the situation in tunnel suddenly, after going out tunnel, target is very
May again occurring the most again, if therefore stopping following the trail of, then have impact on the accuracy of whole target tracking, by non-lost contact
Or missing target is mistaken for missing/lost contact, it is impossible to carry out continuing to follow the tracks of.
Summary of the invention
The present invention provides the method and device determining in image that target is covered, with solving in prior art in target suddenly
In the case of disappearance, because being mistaken for seriously blocking the stopping tracking causing, the technical problem of effect is followed the trail of in impact.
A kind of image determines the method that target is covered, including:
Same target is followed the tracks of in continuous print frame of video；
If described target suddenly disappears during following the tracks of, then the track rejection frame of video that described target suddenly disappears is entered
Row image clearly processes；
Described target is searched in described track rejection frame of video after described clear process；
If not searching described target, it is determined that described target is blocked.
The method provided in the present embodiment, during successive video frames is followed the tracks of, uses the target suddenly disappeared in target
Clearly process on missing video frames, if being still in after Chu Liing in this frame of video searching for fall short, it is determined that target is hidden
The technological means of gear, solves in prior art, at this in such cases, directly stops the technical problem continuing to follow the trail of, and then
May be implemented in and determine that target, for blocking, can continue search for following the trail of, improve the technique effect of tracking accuracy.
Optionally, the method also includes:
The camera lens of described continuous print frame of video place video is carried out abrupt climatic change；
If showing after abrupt climatic change, described camera lens does not changes, it is determined that described target is unexpected in track rejection video
Disappear.
In the method that the present embodiment provides, before determining that target is the most missing, abrupt climatic change can be carried out.Because if finding
Target is lost suddenly and camera lens is undergone mutation, then explanation track rejection causes due to shot change, and non-real target is unexpected
Disappear；Because not changing and the situation of track rejection at camera lens, the situation probability pole that successive video frames target is suddenlyd change in video
Little, so selecting in the case of determining that camera lens does not sends sudden change, then judge that target is blocked and can improve judgement further
Target is the accuracy being blocked.
Optionally, the method also includes:
During following the tracks of same target, according to described this target of clarification of objective information updating on different video frame
Feature description template, described feature description template has this clarification of objective information, and this feature information is in the video frame
Identify this target.
Optionally, the method also includes:
When determining that target suddenly disappears, stop updating described feature description template；
The background change that described feature description template after last update combines described frame of video obtains for searching
The feature description template of rope；
According to the described feature description template for search in the ensuing continuous videos frame relay described target of continuous search.
This enforcement provide method, due to be used for identify the feature description template in frame of video before target is the most missing always
Being in the state updated, therefore when there is contact lost, just can obtain up-to-date feature description template for continuing to search
Target after rope disappearance, it is simple to improve the accuracy of search.
Optionally, the feature description template being used for searching for described in described basis continues at ensuing continuous videos frame relay searches
Suo Suoshu target, including:
In described ensuing continuous videos, the region that target suddenly disappears in described track rejection frame of video is for searching
Rope region, according to the described feature description template for search, continues in region of search described in ensuing successive video frames
The described target of continuous search.
In the method that the present embodiment provides, using in target disappearance region is the technological means that region of search scans for,
Hunting zone can be reduced, improve search efficiency simultaneously.
Based on same inventive concept, the embodiment of the present invention continues to determine, in a kind of image of offer, the device that target is covered,
Including:
Tracking module, for following the tracks of same target in continuous print frame of video；
Processing module, if suddenly disappearing during following the tracks of for described target, then the mesh described target suddenly disappeared
Mark missing video frames carries out image and clearly processes；
Search module, searches for described target in the described track rejection frame of video after described clear process；
Determine module, if for not searching described target, it is determined that described target is blocked.
The device provided in the present embodiment, has during successive video frames is followed the tracks of, and employing suddenly disappears in target
Clearly process in track rejection frame of video, if being still in after Chu Liing in this frame of video searching for fall short, it is determined that target
The function being blocked, solves in prior art, at this in such cases, directly stops the technical problem continuing to follow the trail of, and then
May be implemented in and determine that target, for blocking, can continue search for following the trail of, improve the technique effect of tracking accuracy.
Optionally, this device also includes: detection module, for carrying out the camera lens of described continuous print frame of video place video
Abrupt climatic change；
Accordingly, described determining module, if showing after being additionally operable to abrupt climatic change, described camera lens does not changes, it is determined that institute
State target to suddenly disappear in track rejection video.
Optionally, this device also includes:
More new module, for during following the tracks of same target, according to the described clarification of objective on different video frame
This clarification of objective description template of information updating, described feature description template has this clarification of objective information, this feature information
For identifying this target in the video frame.
Optionally, this device also includes: binding modules, for when determining that target suddenly disappears, stops updating described spy
Levy description template, and the background change that the described feature description template after last update combines described frame of video is used
Feature description template in search；
Accordingly, described search module, it is additionally operable to according to the described feature description template for search in ensuing company
Continuous frame of video continues search for described target.
Optionally, described search module, specifically for, in described ensuing continuous videos, regarding with described track rejection
Frequently the region that in frame, target suddenly disappears is region of search, according to the described feature description template for search, ensuing
Described target is continued search in region of search described in successive video frames.
In the device that the present embodiment provides, having in target disappearance region is the function that region of search scans for, permissible
Reduce hunting zone, improve search efficiency simultaneously.
Other features and advantages of the present invention will illustrate in the following description, and, partly become from description
Obtain it is clear that or understand by implementing the present invention.The purpose of the present invention and other advantages can be by the explanations write
Structure specifically noted in book, claims and accompanying drawing realizes and obtains.
Below by drawings and Examples, technical scheme is described in further detail.
Accompanying drawing explanation
Accompanying drawing is for providing a further understanding of the present invention, and constitutes a part for description, with the reality of the present invention
Execute example together for explaining the present invention, be not intended that limitation of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of a kind of method determining in image in the embodiment of the present invention that target covers；
Fig. 2 is the flow chart of the method determining in another kind of image in the embodiment of the present invention that target covers；
Fig. 3 is the block diagram of the device determining in a kind of image in the embodiment of the present invention that target covers.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are illustrated, it will be appreciated that preferred reality described herein
Execute example be merely to illustrate and explain the present invention, be not intended to limit the present invention.
As it is shown in figure 1, the present embodiment provides in a kind of image determines the method that target is covered, the method is suitable for being deployed in
On the device of track demand or equipment, the method comprises the steps:
101, continuous print frame of video is followed the tracks of same target；
Video is all made up of frame of video, 25 frame of video the most per second, and each frame of video is an image.In group
Become and on the continuous print image of video, constantly follow the tracks of same target.
102, if described target suddenly disappears during following the tracks of, then the track rejection video described target suddenly disappeared
Frame carries out image and clearly processes；
In this enforcement, described suddenly disappearing, refers to that target there is also on the image of a upper frame of video, and currently
Frame of video on target be just wholly absent, can't see any part in target, and this disappearance be the most not due to target
Walk out caused by the camera lens of frame of video place video.
Wherein, above-mentioned clear process can be any place making track rejection frame of video be easier to observe or trace into target
Reason.As except making an uproar, sharpen, blast, amplify, reduce, even translation etc..
Optionally, definition process can be carried out in the region that target suddenly disappears.
103, the described track rejection frame of video after described clear process searches for described target；
If this target is also in frame of video, it is only to diminish or thicken, after above-mentioned clear process, it will usually aobvious
Reveal to come, then search target, if not real the suddenly disappearing of target, generally can search in this frame of video.
104, if not searching described target, it is determined that described target is blocked.
The method provided in the present embodiment, during successive video frames is followed the tracks of, uses the target suddenly disappeared in target
Clearly process on missing video frames, if being still in after Chu Liing in this frame of video searching for fall short, it is determined that target is hidden
The technological means of gear, solves in prior art, at this in such cases, directly stops the technical problem continuing to follow the trail of, and then
May be implemented in and determine that target, for blocking, can continue search for following the trail of, improve the technique effect of tracking accuracy.
Optionally, the method for the present embodiment also includes:
The camera lens of described continuous print frame of video place video is carried out abrupt climatic change；If showing described camera lens after abrupt climatic change
Do not change, it is determined that described target suddenly disappears in track rejection video.
It is to suddenly disappear to get rid of the target caused due to shot change that the camera lens of video carries out abrupt climatic change.Therefore
Before determining that target is the most missing, abrupt climatic change can be carried out.Because if finding that target is lost suddenly and camera lens is undergone mutation, then
Illustrate that track rejection causes due to shot change, and non-real target suddenly disappears；Because not changing and target is lost at camera lens
Situation about losing, the situation probability that successive video frames target is suddenlyd change in video is minimum, so selecting to determine that camera lens does not sends prominent
In the case of change, then judge that target is blocked.
Optionally, the method can also include:
During the same target of tracking of step 101, also perform according to the described target on different video frame simultaneously
Characteristic information update this clarification of objective description template, described feature description template has this clarification of objective information, this spy
Reference breath is for identifying this target in the video frame.
Feature description template is just used to identify target, and this template can be characterized as a square suitable with target sizes
Shape region, updates this template, is i.e. the characteristic information updating the rectangular area to this target, this feature information such as color, brightness,
Gray scale etc..Owing to, in continuous print frame of video, the brightness on frame that may be different is different, it is therefore desirable to during following the tracks of,
The characteristic information of this feature description template is constantly automatically updated according to target feature in frame of video.
Optionally, the method also includes:
When determining that target suddenly disappears, stop updating described feature description template；Described in after last update
Feature description template combines the background change of described frame of video and obtains the feature description template for search；Search according to described being used for
The feature description template of rope is in the ensuing continuous videos frame relay described target of continuous search.
The method that the present embodiment provides, uses feature description template to constantly update during following the tracks of, but is occurring
During loss, stop updating, and combine video background brightness flop be used as searching for mistake with the feature description template before losing
Track clarification of objective description template, and according to this template, target is scanned for.
Wherein, the feature description template of search it is used for described in described basis in the continuous search of ensuing continuous videos frame relay
Described target, including:
In described ensuing continuous videos, the region that target suddenly disappears in described track rejection frame of video is for searching
Rope region, according to the described feature description template for search, continues in region of search described in ensuing successive video frames
The described target of continuous search.
In the method that the present embodiment provides, carried out not by particle filter method in track rejection region, i.e. region of search
Disconnected search carries out the technological means of the coupling of feature description template, may be implemented in obstruction conditions when changing, it is possible to essence again
The true technique effect finding target to be tracked.
As in figure 2 it is shown, the present embodiment specifically provides a kind of method that target is covered that determines in image, including:
200, continuous print frame of video is followed the tracks of same target；
In the continuous print frame of video of video, such as follow the tracks of a little girl.
201, during following the tracks of same target, should according to the described clarification of objective information updating on different video frame
Clarification of objective description template, described feature description template has this clarification of objective information, and this feature information is at video
Frame identifies this target.
202, if described target suddenly disappears during following the tracks of, as little girl enters into tunnel, then described continuous print is regarded
Frequently the camera lens of frame place video carries out abrupt climatic change, has changed suddenly angle such as camera lens, or color becomes dark suddenly；If sudden change inspection
Show after survey that described camera lens does not changes, then perform 203；Otherwise attempt adjusting camera lens, remove lens mutation reason.
203, region target in track rejection frame of video suddenly disappeared carries out image amplification, translation etc. and clearly processes；
204, the described track rejection frame of video after described clear process searches for described target；If not searching institute
State target, then perform 205；If the target of searching, then continue 201.
205, determine that described target suddenly disappears in track rejection video.Will that piece of video suddenly disappearing of little girl
Frame is as track rejection frame of video.
206, stop updating described feature description template；
207, the background change that the described feature description template after last update combines described frame of video is used
Feature description template in search；
208, in described ensuing continuous videos, the region suddenly disappeared with target in described track rejection frame of video
For region of search, according to the described feature description template for search, region of search described in ensuing successive video frames
In continue search for described target little girl.
209, when obstruction conditions changes, such as little girl walks out from tunnel, retouches for the feature of search according to this
State template and can search again for this little girl, and continue to follow the tracks of.
The present embodiment provides in said method, and step 200 and 201 can perform simultaneously；And camera lens is dashed forward
The step 202 becoming detection can perform before 203, it is also possible to performs after step 204 determines and do not searches target again.
Method for the ease of the embodiment shown in above-mentioned Fig. 1 and Fig. 2 is capable of, and the present embodiment continues the one provided
Image determines the device that target is covered, as it is shown on figure 3, include:
Tracking module 31, for following the tracks of same target in continuous print frame of video；
Processing module 32, if suddenly disappearing during following the tracks of for described target, then suddenly disappears described target
Track rejection frame of video carries out image and clearly processes；
Search module 33, searches for described target in the described track rejection frame of video after described clear process；
Determine module 34, if for not searching described target, it is determined that described target is blocked.
The device provided in the present embodiment, has during successive video frames is followed the tracks of, and employing suddenly disappears in target
Clearly process in track rejection frame of video, if being still in after Chu Liing in this frame of video searching for fall short, it is determined that target
The function being blocked, solves in prior art, at this in such cases, directly stops the technical problem continuing to follow the trail of, and then
May be implemented in and determine that target, for blocking, can continue search for following the trail of, improve the technique effect of tracking accuracy.
Optionally, this device also includes: detection module, for carrying out the camera lens of described continuous print frame of video place video
Abrupt climatic change；Accordingly, described determining module 34, if showing after being additionally operable to abrupt climatic change, described camera lens does not changes, the most really
Fixed described target suddenly disappears in track rejection video.
Optionally, this device also includes:
More new module, for during following the tracks of same target, according to the described clarification of objective on different video frame
This clarification of objective description template of information updating, described feature description template has this clarification of objective information, this feature information
For identifying this target in the video frame.
Optionally, this device also includes: binding modules, for when determining that target suddenly disappears, stops updating described spy
Levy description template, and the background change that the described feature description template after last update combines described frame of video is used
Feature description template in search；
Accordingly, described search module 33, it is additionally operable to according to the described feature description template for search ensuing
Continuous videos frame relay is continuous searches for described target.
Optionally, described search module 33, specifically in described ensuing continuous videos, with described track rejection
The region that in frame of video, target suddenly disappears is region of search, according to the described feature description template for search, next
Successive video frames described in continue search for described target in region of search.
In the device that the present embodiment provides, having in target disappearance region is the function that region of search scans for, permissible
Reduce hunting zone, improve search efficiency simultaneously.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the reality in terms of the present invention can use complete hardware embodiment, complete software implementation or combine software and hardware
Execute the form of example.And, the present invention can use at one or more computers wherein including computer usable program code
The shape of the upper computer program implemented of usable storage medium (including but not limited to disk memory and optical memory etc.)
Formula.
The present invention is with reference to method, equipment (system) and the flow process of computer program according to embodiments of the present invention
Figure and/or block diagram describe.It should be understood that can the most first-class by computer program instructions flowchart and/or block diagram
Flow process in journey and/or square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
Instruction arrives the processor of general purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce
A raw machine so that the instruction performed by the processor of computer or other programmable data processing device is produced for real
The device of the function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame now.
These computer program instructions may be alternatively stored in and computer or other programmable data processing device can be guided with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in this computer-readable memory produces and includes referring to
Make the manufacture of device, this command device realize at one flow process of flow chart or multiple flow process and/or one square frame of block diagram or
The function specified in multiple square frames.
These computer program instructions also can be loaded in computer or other programmable data processing device so that at meter
Perform sequence of operations step on calculation machine or other programmable devices to produce computer implemented process, thus at computer or
The instruction performed on other programmable devices provides for realizing at one flow process of flow chart or multiple flow process and/or block diagram one
The step of the function specified in individual square frame or multiple square frame.
Obviously, those skilled in the art can carry out various change and the modification essence without deviating from the present invention to the present invention
God and scope.So, if these amendments of the present invention and modification belong to the scope of the claims in the present invention and equivalent technologies thereof
Within, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. an image determines the method that target is covered, it is characterised in that including:
Same target is followed the tracks of in continuous print frame of video；
If described target suddenly disappears during following the tracks of, then the track rejection frame of video that described target suddenly disappears is carried out figure
Process as clear；
Described target is searched in described track rejection frame of video after described clear process；
If not searching described target, it is determined that described target is blocked.
Method the most according to claim 1, it is characterised in that the method also includes:
The camera lens of described continuous print frame of video place video is carried out abrupt climatic change；
If showing after abrupt climatic change, described camera lens does not changes, it is determined that described target disappears suddenly in track rejection video
Lose.
Method the most according to claim 1 and 2, it is characterised in that the method also includes:
During following the tracks of same target, according to the spy of described clarification of objective this target of information updating on different video frame
Levying description template, described feature description template has this clarification of objective information, and this feature information is for identifying in the video frame
This target.
Method the most according to claim 3, it is characterised in that the method also includes:
When determining that target suddenly disappears, stop updating described feature description template；
The background change that described feature description template after last update combines described frame of video obtains for search
Feature description template；
According to the described feature description template for search in the ensuing continuous videos frame relay described target of continuous search.
Method the most according to claim 4, it is characterised in that described in described basis, the feature description template for search exists
Ensuing continuous videos frame relay is continuous searches for described target, including:
In described ensuing continuous videos, the region that target suddenly disappears in described track rejection frame of video is as the field of search
Territory, according to the described feature description template for search, continues to search in region of search described in ensuing successive video frames
Suo Suoshu target.
6. an image determines the device that target is covered, it is characterised in that including:
Tracking module, for following the tracks of same target in continuous print frame of video；
Processing module, if suddenly disappearing during following the tracks of for described target, then loses the target that described target suddenly disappears
Mistake frame of video carries out image and clearly processes；
Search module, searches for described target in the described track rejection frame of video after described clear process；
Determine module, if for not searching described target, it is determined that described target is blocked.
Device the most according to claim 6, it is characterised in that
This device also includes: detection module, for the camera lens of described continuous print frame of video place video is carried out abrupt climatic change；
Described determining module, if showing after being additionally operable to abrupt climatic change, described camera lens does not changes, it is determined that described target is at mesh
Mark is lost in video and is suddenly disappeared.
8. according to the device described in claim 6 or 7, it is characterised in that this device also includes:
More new module, for during following the tracks of same target, according to the described clarification of objective information on different video frame
Updating this clarification of objective description template, described feature description template has this clarification of objective information, and this feature information is used for
Identify this target in the video frame.
Device the most according to claim 8, it is characterised in that
This device also includes: binding modules, for when determining that target suddenly disappears, stops updating described feature description template,
And the background change that the described feature description template after last update combines described frame of video obtains the spy for search
Levy description template；
Described search module, is additionally operable to according to the described feature description template for search at ensuing continuous videos frame relay
The described target of continuous search.
Device the most according to claim 9, it is characterised in that
Described search module, specifically in described ensuing continuous videos, with target in described track rejection frame of video
The region suddenly disappeared is region of search, according to the described feature description template for search, in ensuing successive video frames
Described in continue search for described target in region of search.
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| CN201610370920.1A CN106096508B (en) | 2016-05-30 | 2016-05-30 | The method and device that target is covered is determined in a kind of image |
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| CN201610370920.1A CN106096508B (en) | 2016-05-30 | 2016-05-30 | The method and device that target is covered is determined in a kind of image |
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Citations (5)
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| CN1738426A (en) * | 2005-09-09 | 2006-02-22 | 南京大学 | Video motion goal division and track method |
| CN101141633A (en) * | 2007-08-28 | 2008-03-12 | 湖南大学 | Moving object detecting and tracing method in complex scene |
| CN102063614A (en) * | 2010-12-28 | 2011-05-18 | 天津市亚安科技电子有限公司 | Method and device for detecting lost articles in security monitoring |
| CN104504724A (en) * | 2015-01-15 | 2015-04-08 | 杭州国策商图科技有限公司 | Moving object extracting and tracking algorithm capable of being not affected by obstacles |
| US9057783B2 (en) * | 2011-01-18 | 2015-06-16 | The United States Of America As Represented By The Secretary Of The Army | Change detection method and system for use in detecting moving targets behind walls, barriers or otherwise visually obscured |
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2016
- 2016-05-30 CN CN201610370920.1A patent/CN106096508B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1738426A (en) * | 2005-09-09 | 2006-02-22 | 南京大学 | Video motion goal division and track method |
| CN101141633A (en) * | 2007-08-28 | 2008-03-12 | 湖南大学 | Moving object detecting and tracing method in complex scene |
| CN102063614A (en) * | 2010-12-28 | 2011-05-18 | 天津市亚安科技电子有限公司 | Method and device for detecting lost articles in security monitoring |
| US9057783B2 (en) * | 2011-01-18 | 2015-06-16 | The United States Of America As Represented By The Secretary Of The Army | Change detection method and system for use in detecting moving targets behind walls, barriers or otherwise visually obscured |
| CN104504724A (en) * | 2015-01-15 | 2015-04-08 | 杭州国策商图科技有限公司 | Moving object extracting and tracking algorithm capable of being not affected by obstacles |
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