CN109151312A - Focusing method, device and video presenter - Google Patents
Focusing method, device and video presenter Download PDFInfo
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- CN109151312A CN109151312A CN201811027925.XA CN201811027925A CN109151312A CN 109151312 A CN109151312 A CN 109151312A CN 201811027925 A CN201811027925 A CN 201811027925A CN 109151312 A CN109151312 A CN 109151312A
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- moving object
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
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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
- G06V20/41—Higher-level, semantic clustering, classification or understanding of video scenes, e.g. detection, labelling or Markovian modelling of sport events or news items
- G06V20/42—Higher-level, semantic clustering, classification or understanding of video scenes, e.g. detection, labelling or Markovian modelling of sport events or news items of sport video content
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Abstract
The invention discloses a kind of focusing method, device and video presenters, this method comprises: being split to video clip, obtain multiple regions；Identify the target moving object in video pictures with designated shape；Determine that target area, target area are one of a plurality of areas according to the direction of target moving object；Control video camera focuses to target area.Through the invention, achieved the effect that video presenter realizes interactive function.
Description
Technical field
The present invention relates to video presenter fields, in particular to a kind of focusing method, device and video presenter.
Background technique
Show stand is also known as article showing platform, when it is connected in projector and television set, so that it may by data, handout,
Material object, lantern slide etc. are clearly shown, and are indispensable one of the teaching equipments of multi-media classroom.
Video showing platform can be applied in each course teaching: literal arts class can be imparted knowledge to students numerous resources materials with each
The class books space of a whole page, is placed directly within show stand table top, passes through the application of light, the adjustment of enlarging function, so that it may clearly show
Come；Chemistry, physics subject can directly carry out some experiments on show stand, allow student's clear view.Again and multimedia overhead projector
The outputs, input equipment such as machine, large screen back projection TV, general television set, LCD monitor, video recorder, VCD, DVD player, microphone
It matches, video showing platform has wider purposes in information technology teaching.
But video presenter can not be interacted with user at present, can not carry out emphasis displaying, inadequate intelligence to key content
Energy.
Summary of the invention
The main purpose of the present invention is to provide a kind of focusing method, device and video presenters, to solve the prior art
Middle video presenter does not have the problem of interactive function.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of focusing method, the method packet
It includes: video clip is split, obtain multiple regions；Identify the target moving object in video pictures with designated shape；
Determine that target area, the target area are one in multiple regions according to the direction of the target moving object；Control
Video camera processed focuses to the target area.
Further, target area is determined according to the direction of the target moving object, comprising: determine the target movement
The front end of object, the front end are the one end being directed toward with direction；By region pointed by the front end of the target moving object
As the target area.
Further, the target moving object in video pictures with designated shape is identified, comprising: identify that the video is drawn
Moving object in face；Judge whether the moving object has designated shape；If the moving object has designated shape,
Then using the moving object as the target moving object, alternatively, identifying the object in the video pictures with designated shape
Body；Whether the position of the judgement object with designated shape is changed；If the object with designated shape
Position changed, then using the object with designated shape as the target moving object.
Further, it identifies the moving object in the video pictures, judges whether the moving object has specified shape
Shape, if the moving object has designated shape, using the moving object as the target moving object, comprising: know
Moving object in the not described video pictures；Judge the motion range of the moving object whether within the scope of predeterminated position；
If it is specified that the motion range of the moving object within the scope of predeterminated position, judges whether the moving object has
Shape；If the moving object has designated shape, using the moving object as the target moving object.
Further, it identifies the moving object in the video pictures, judges whether the moving object has specified shape
Shape, if the moving object has designated shape, using the moving object as the target moving object, comprising: know
Moving object in the not described video pictures；It is default to judge whether the size and Orientation of the movement velocity of the moving object meets
Condition；If the size and Orientation of the movement velocity of the moving object meets the preset condition, the moving object is judged
Whether there is designated shape；If the moving object has designated shape, transported the moving object as the target
Animal body.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of focusing mechanism, described device packet
Include: cutting unit obtains multiple regions for being split to video clip；Recognition unit has in video pictures for identification
There is the target moving object of designated shape；Determination unit, for determining target area according to the direction of the target moving object,
The target area is one in multiple regions；Control unit carries out the target area for controlling video camera
Focusing.
Further, the determination unit includes: the first determining subelement, before determining the target moving object
End, the front end is the one end being directed toward with direction；Second determines subelement, for by the front end institute of the target moving object
The region of direction is as the target area.
Further, the recognition unit includes: the first identification subelement, for identification the movement in the video pictures
Object；First judgment sub-unit, for judging whether the moving object has designated shape；Third determines subelement, is used for
If the moving object has designated shape, using the moving object as the target moving object, alternatively, second knows
Small pin for the case unit, for identification with the object of designated shape in the video pictures；Second judgment sub-unit, it is described for judging
Whether the position of the object with designated shape is changed；4th determines subelement, if having specified shape for described
The position of the object of shape is changed, using the object with designated shape as the target moving object.
Further, the first identification subelement includes: the first identification module, for identification in the video pictures
Moving object；First judgment module, for judging the motion range of the moving object whether within the scope of predeterminated position；Institute
It states the first judgment sub-unit to be used for: if the motion range of the moving object within the scope of predeterminated position, judges institute
State whether moving object has designated shape；The third determines that subelement is used for: if the moving object has specified shape
Shape, using the moving object as the target moving object.
Further, the first identification subelement includes: the second identification module, for identification in the video pictures
Moving object；Second judgment module, for judging it is default whether the size and Orientation of movement velocity of the moving object meets
Condition；First judgment sub-unit is used for: if the size and Orientation of the movement velocity of the moving object meet it is described pre-
If condition, judge whether the moving object has designated shape；The third determines that subelement is used for: if the moving object
Body has designated shape, then using the moving object as the target moving object.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of video presenter, the exhibition booth packet
It includes: video camera, for shooting video；Data processing module, the target in video pictures with designated shape moves for identification
Object, and target area is determined according to the direction of the target moving object.
Further, the exhibition booth includes: memory module, for storing the video of the video camera shooting.
Further, the exhibition booth includes: video output interface, is connected with external equipment, for exporting the video camera
The video of shooting.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of display systems, the system packet
It includes: video presenter；It shows equipment, is connect with the video presenter, for showing the video of video camera shooting.
In the embodiment of the present application, video clip is split, obtains multiple regions, identifying has finger in video pictures
The target moving object of setting shape, target moving object can be finger, pen, teacher's pointer etc., according to the direction of target moving object
Determine target area, control video camera focuses to target area, thus user is wanted carry out the region of emphasis displaying with
Higher clarity is shown, and improves bandwagon effect, is realized the interaction between video presenter and user, is improved video
The intelligence of exhibition booth.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart according to a kind of optional focusing method of the embodiment of the present application；
Fig. 2 is the schematic diagram according to the front end of the finger of the embodiment of the present application；
Fig. 3 is the flow chart according to another optional focusing method of the embodiment of the present application；
Fig. 4 is the flow chart according to another optional focusing method of the embodiment of the present application；
Fig. 5 is the schematic diagram according to a kind of optional focusing mechanism of the embodiment of the present application；
Fig. 6 is the schematic diagram according to a kind of optional display systems of the embodiment of the present application.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
The embodiment of the application a part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
Member's every other embodiment obtained without making creative work, all should belong to the model of the application protection
It encloses.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to embodiments herein described herein.In addition, term " includes " and " tool
Have " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing a series of steps or units
Process, method, system, product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include without clear
Other step or units listing to Chu or intrinsic for these process, methods, product or equipment.
Fig. 1 is according to a kind of flow chart of optional focusing method of the embodiment of the present application, as shown in Figure 1, this method packet
Include following steps:
Step S102: being split video clip, obtains multiple regions.
It is split region for video clip, for example, dividing the image under the image of 1920*1080 picture size
192*108 equal portions, 96*54 equal portions, 48*27 equal portions etc..
Step S104: the target moving object with designated shape in identification video pictures.
Designated shape can be the shapes such as finger, pen, teacher's pointer.Target moving object is moving object, and is had specified
Shape.
Specifically, the specific implementation procedure of step S104 can be following two:
As a kind of optional embodiment, the target moving object in video pictures with designated shape is identified, comprising: know
Moving object in other video pictures；Judge whether moving object has designated shape；If moving object has designated shape,
Then using moving object as target moving object.
As an alternative embodiment, the target moving object in video pictures with designated shape is identified, comprising:
Identify the object in video pictures with designated shape；Judge whether the position with the object of designated shape is changed；
If the position of the object with designated shape is changed, using the object with designated shape as target moving object
Body.
Specifically, the method for moving object in video pictures is identified are as follows: find position in the picture of different frame and change
Object, the changed object in position is moving object.
Judge in picture an object whether be designated shape method are as follows: calculate the phase between the object and designated shape
Like degree, a similarity threshold is set, if calculated similarity is less than similarity threshold, it is determined that the object is not specified
Shape；If calculated similarity is greater than or equal to similarity threshold, it is determined that the object is designated shape.
Step S106: determine that target area, target area are one in multiple regions according to the direction of target moving object
It is a.
Step S108: control video camera focuses to target area.
In the embodiment of the present application, video clip is split, obtains multiple regions, identifying has finger in video pictures
The target moving object of setting shape, target moving object can be finger, pen, teacher's pointer etc., according to the direction of target moving object
Determine target area, control video camera focuses to target area, thus user is wanted carry out the region of emphasis displaying with
Higher clarity is shown, and improves bandwagon effect, is realized the interaction between video presenter and user, is improved video
The intelligence of exhibition booth.
As a kind of optional embodiment, identifies the moving object in video pictures, judge whether moving object has finger
Shape shape, if moving object has designated shape, using moving object as target moving object, comprising: identification video is drawn
Moving object in face；Judge the motion range of moving object whether within the scope of predeterminated position；If the fortune of moving object
Dynamic range judges whether moving object has designated shape within the scope of predeterminated position；If moving object has specified shape
Shape, then using moving object as target moving object.
As a kind of optional embodiment, identifies the moving object in video pictures, judge whether moving object has finger
Shape shape, if moving object has designated shape, using moving object as target moving object, comprising: identification video is drawn
Moving object in face；Judge whether the size and Orientation of the movement velocity of moving object meets preset condition；If moving object
The size and Orientation of the movement velocity of body meets preset condition, judges whether moving object has designated shape；If moving object
Body has designated shape, then using moving object as target moving object.
When teacher is using the cooperations such as finger, pen, teacher's pointer explanation paper or books, with finger, pen, teacher's pointer adopting consecutive click chemical reaction,
Finger, pen, teacher's pointer are moving object.Movement for teacher's finger, pen or teacher's pointer adopting consecutive click chemical reaction paper or books, fortune
Dynamic range is very little, and predeterminated position range is a lesser position range.Assuming that teacher is in explanation paper, teacher's index finger
It is clicked on paper, during shooting video, there is a small winged insect to fly over, then not only contained in the video pictures shot
Index finger clicks paper, also contains small winged insect.But the motor pattern that the motor pattern of small winged insect clicks paper with index finger has been
It is complete different.Assuming that the plane where video presenter is the plane of X-axis Y-axis composition, the axis perpendicular to video presenter is Z axis, then
As can be seen that the variation of coordinate value of the small winged insect in the plane that X-axis Y-axis forms is bigger when small winged insect flies over.And in index finger
It clicks under this motor pattern of paper, coordinate value of the index finger in the plane that X-axis Y-axis forms varies less, and index finger
The direction of motion is substantially parallel with Z axis, it may also be said to, the mitre joint of the plane of the direction of motion and X-axis the Y-axis composition of index finger
Nearly 90 degree.
By limiting the motion range when moving object within the scope of predeterminated position, it is likely to as target moving object,
Eliminate the interference for taking that winged insect flies over or other situations generate.
Preset condition can also be met by limiting the size and Orientation for the movement velocity for working as moving object, be likely to as mesh
Moving object is marked, the interference for taking that winged insect flies over or other situations generate is eliminated.
Optionally, target area is determined according to the direction of target moving object, comprising: before determining target moving object
End, front end is the one end being directed toward with direction；Using region pointed by the front end of target moving object as target area.Fig. 2
Show the front end of finger.
Region pointed by the front end of target moving object is the region focused.Before target moving object
The pointed region in end is focused, and the picture in the region of shooting can be made relatively sharp, to reach better bandwagon effect.
Fig. 3 is according to the flow chart of another optional focusing method of the embodiment of the present application, as shown in figure 3, this method
It include: for current video interface initialization picture cut zone, for example, will scheme under the image of 1920*1080 picture size
As being divided into 192*108 equal portions, 96*54 equal portions, 48*27 equal portions etc..If not opening tracking focusing, focusing is not started.If
Tracking focusing is opened, then obtains image information and carries out image recognition, same object is in some position range in extraction video
Interior continuous motion information, detects whether above-mentioned continuous motion information falls in limits, if above-mentioned continuous motion information does not have
It falls in limits, is then shown to be interference information, does not then start focusing process.If above-mentioned continuous motion information falls in limit
It is worth in range, then judging whether it is adopting consecutive click chemical reaction information, (judgement of adopting consecutive click chemical reaction information can be by the movement speed of moving object
The size and Orientation of degree is judged).If not adopting consecutive click chemical reaction information, then do not start focusing process；If it is adopting consecutive click chemical reaction
Information then starts focusing, is directed toward region starting focusing to moving object.
Fig. 4 is according to the flow chart of another optional focusing method of the embodiment of the present application, as shown in figure 4, this method
It include: for current video interface initialization picture cut zone, for example, will scheme under the image of 1920*1080 picture size
As being divided into 192*108 equal portions, 96*54 equal portions, 48*27 equal portions etc..If not opening tracking focusing, focusing is not started.If
Tracking focusing is opened, then obtains image information and carries out image recognition, same object is in some position range in extraction video
Interior continuous motion information, if detect moving object only one, detect whether above-mentioned continuous motion information falls in limit value
In range, if above-mentioned continuous motion information is not fallen in limits, it is shown to be interference information, then is not started at focusing
Reason.If above-mentioned continuous motion information is fallen in limits, adopting consecutive click chemical reaction information is judged whether it is.If not continuity point
Information is hit, then does not start focusing process；If it is adopting consecutive click chemical reaction information, then start focusing, region starting is directed toward to moving object
Focusing.If detecting that the quantity of moving object is greater than 1, the moving object nearest apart from video clip central point is selected, is sentenced
Whether the continuous motion information of the moving object nearest apart from video clip central point of breaking falls in limits, if above-mentioned
Continuous motion information is not fallen in limits, then is shown to be interference information, does not then start focusing process.If above-mentioned continuous
Motion information is fallen in limits, then judges whether it is adopting consecutive click chemical reaction information.If not adopting consecutive click chemical reaction information, then do not start
Focusing process；If it is adopting consecutive click chemical reaction information, then start focusing, region starting focusing is directed toward to moving object.
Fig. 5 is according to a kind of schematic diagram of optional focusing mechanism of the embodiment of the present application, as shown in figure 5, the device packet
It includes: cutting unit 10, recognition unit 20, determination unit 30, control unit 40.
Cutting unit 10 obtains multiple regions for being split to video clip.
Recognition unit 20, for identification with the target moving object of designated shape in video pictures.
Determination unit 30, for determining that target area, target area are multiple regions according to the direction of target moving object
In one.
Control unit 40 focuses to target area for controlling video camera.
In the embodiment of the present application, video clip is split, obtains multiple regions, identifying has finger in video pictures
The target moving object of setting shape, target moving object can be finger, pen, teacher's pointer etc., according to the direction of target moving object
Determine target area, control video camera focuses to target area, thus user is wanted carry out the region of emphasis displaying with
Higher clarity is shown, and improves bandwagon effect, is realized the interaction between video presenter and user, is improved video
The intelligence of exhibition booth.
Optionally it is determined that unit 30 includes: the first determining subelement, the second determining subelement.
First determines subelement, for determining that the front end of target moving object, front end are the one end being directed toward with direction.
Second determines subelement, for using region pointed by the front end of target moving object as target area.
Optionally, recognition unit 20 includes: that the first identification subelement, the first judgment sub-unit, third determine subelement.
First identification subelement, for identification moving object in video pictures.
First judgment sub-unit, for judging whether moving object has designated shape.
Third determines subelement, if having designated shape for moving object, moves moving object as target
Object.
Optionally, recognition unit 20 includes: the second identification subelement, the second judgment sub-unit, the 4th determining subelement.
Second identification subelement, for identification with the object of designated shape in video pictures.
Second judgment sub-unit, for judging whether the position of the object with designated shape is changed.
4th determines subelement, if the position for the object with designated shape is changed, will have specified
The object of shape is as target moving object.
Optionally, the first identification subelement includes: the first identification module, first judgment module.
First identification module, for identification moving object in video pictures.
First judgment module, for judging the motion range of moving object whether within the scope of predeterminated position.
First judgment sub-unit is used for: if the motion range of moving object within the scope of predeterminated position, judges to move
Whether object has designated shape.
Third determines that subelement is used for: if moving object has designated shape, using moving object as target moving object
Body.
Optionally, the first identification subelement includes: the second identification module, the second judgment module.
Second identification module, for identification moving object in video pictures.
Second judgment module, for judging whether the size and Orientation of movement velocity of moving object meets preset condition.
First judgment sub-unit is used for: if the size and Orientation of the movement velocity of moving object meets preset condition, being sentenced
Whether disconnected moving object has designated shape.
Third determines that subelement is used for: if moving object has designated shape, moving moving object as target
Object.
The embodiment of the present application provides a kind of video presenter, which includes: video camera, data processing module.
Video camera, for shooting video.
Data processing module, for identification with the target moving object of designated shape in video pictures, and according to target
The direction of moving object determines target area.
Optionally, exhibition booth includes: memory module.
Memory module, for storing the video of video camera shooting.
Optionally, exhibition booth includes: video output interface.
Video output interface is connected with external equipment, for exporting the video of video camera shooting.
In the embodiment of the present application, video clip is split, obtains multiple regions, identifying has finger in video pictures
The target moving object of setting shape, target moving object can be finger, pen, teacher's pointer etc., according to the direction of target moving object
Determine target area, control video camera focuses to target area, thus user is wanted carry out the region of emphasis displaying with
Higher clarity is shown, and improves bandwagon effect, is realized the interaction between video presenter and user, is improved video
The intelligence of exhibition booth.
The embodiment of the present application provides a kind of display systems, which includes: video presenter, display equipment.
It shows equipment, is connect with video presenter, for showing the video of video camera shooting.
Fig. 6 is according to a kind of schematic diagram of optional display systems of the embodiment of the present application, as shown in fig. 6, the system packet
It includes: video presenter and display equipment.Video presenter include: camera (i.e. Camera module in Fig. 6), data processing module,
Memory module, video output interface.Show that equipment includes: video input interface.Video camera is mainly used for video acquisition, if made
It is focused with tracking, back and forth stretches focusing to accelerate focusing speed and camera lens, it can be preferentially using taking the photograph with PDAF focus function
As head, data processing module mainly handles collected video data and makes image judgement, and memory module is mainly used
In storage program and processing data.The video output interface of video presenter is connected with the video input interface of display equipment, video
Exhibition booth, which exports video, gives display equipment, and the video that display equipment interconnection receives is shown.
Current real object exhibition booth or high photographing instrument is only used as common capture apparatus, most camera plane image, no interactions
Function.Display systems provided by the embodiments of the present application realize focus function by the identification to hand gesture location, and do not need to show
Show that equipment has interactive function, without using mouse.Also, the focusing that can not only realize planar object, also can be realized
The focusing of three-dimensional object.
It should be noted that since length is limited, there is no the embodiments that exhaustion is all in the application, as long as not mutually
The feature contradicted can be freely optionally combined, and become the optional embodiment of the application.
The embodiment of the invention provides a kind of storage medium, storage medium includes the program of storage, wherein is run in program
When control storage medium where equipment execute above-mentioned focusing method.
Equipment where storage medium can be intelligent interaction plate.
The embodiment of the invention provides a kind of processor, processor is for running program, wherein executes when program is run
The focusing method stated.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two ", " third " etc. is to be used to distinguish similar objects, without being used to describe a particular order or precedence order.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
In a typical configuration, calculating equipment includes one or more processors (CPU), input/output interface, net
Network interface and memory.
Memory may include the non-volatile memory in computer-readable medium, random access memory (RAM) and/
Or the forms such as Nonvolatile memory, such as read-only memory (ROM) or flash memory (flash RAM).Memory is computer-readable Jie
The example of matter.
Computer-readable medium includes permanent and non-permanent, removable and non-removable media can be by any method
Or technology come realize information store.Information can be computer readable instructions, data structure, the module of program or other data.
The example of the storage medium of computer includes, but are not limited to phase change memory (PRAM), static random access memory (SRAM), moves
State random access memory (DRAM), other kinds of random access memory (RAM), read-only memory (ROM), electric erasable
Programmable read only memory (EEPROM), flash memory or other memory techniques, read-only disc read only memory (CD-ROM) (CD-ROM),
Digital versatile disc (DVD) or other optical storage, magnetic cassettes, tape magnetic disk storage or other magnetic storage devices
Or any other non-transmission medium, can be used for storage can be accessed by a computing device information.As defined in this article, it calculates
Machine readable medium does not include temporary computer readable media (transitory media), such as the data-signal and carrier wave of modulation.
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability
It include so that the process, method, commodity or the equipment that include a series of elements not only include those elements, but also to wrap
Include other elements that are not explicitly listed, or further include for this process, method, commodity or equipment intrinsic want
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including element
There is also other identical elements in process, method, commodity or equipment.
It will be understood by those skilled in the art that embodiments herein can provide as method, system or computer program product.
Therefore, complete hardware embodiment, complete software embodiment or embodiment combining software and hardware aspects can be used in the application
Form.It is deposited moreover, the application can be used to can be used in the computer that one or more wherein includes computer usable program code
The shape for the computer program product implemented on storage media (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
Formula.
The above is only embodiments herein, are not intended to limit this application.To those skilled in the art,
Various changes and changes are possible in this application.It is all within the spirit and principles of the present application made by any modification, equivalent replacement,
Improve etc., it should be included within the scope of the claims of this application.
Claims (10)
1. a kind of focusing method, which is characterized in that the described method includes:
Video clip is split, multiple regions are obtained；
Identify the target moving object in video pictures with designated shape；
Determine that target area, the target area are one in multiple regions according to the direction of the target moving object
It is a；
Control video camera focuses to the target area.
2. the method according to claim 1, wherein determining target area according to the direction of the target moving object
Domain, comprising:
Determine that the front end of the target moving object, the front end are the one end being directed toward with direction；
Using region pointed by the front end of the target moving object as the target area.
3. the method according to claim 1, wherein the target with designated shape moves in identification video pictures
Object, comprising:
Identify the moving object in the video pictures；
Judge whether the moving object has designated shape；
If the moving object has designated shape, using the moving object as the target moving object,
Alternatively,
Identify the object in the video pictures with designated shape；
Whether the position of the judgement object with designated shape is changed；
If the position of the object with designated shape is changed, using the object with designated shape as
The target moving object.
4. according to the method described in claim 3, judging institute it is characterized in that, identify the moving object in the video pictures
State whether moving object has designated shape, if the moving object have designated shape, using the moving object as
The target moving object, comprising:
Identify the moving object in the video pictures；
Judge the motion range of the moving object whether within the scope of predeterminated position；
If the motion range of the moving object within the scope of predeterminated position, judges whether the moving object has
Designated shape；
If the moving object has designated shape, using the moving object as the target moving object.
5. according to the method described in claim 3, judging institute it is characterized in that, identify the moving object in the video pictures
State whether moving object has designated shape, if the moving object have designated shape, using the moving object as
The target moving object, comprising:
Identify the moving object in the video pictures；
Judge whether the size and Orientation of the movement velocity of the moving object meets preset condition；
If the size and Orientation of the movement velocity of the moving object meets the preset condition, judge that the moving object is
It is no that there is designated shape；
If the moving object has designated shape, using the moving object as the target moving object.
6. a kind of focusing mechanism, which is characterized in that described device includes:
Cutting unit obtains multiple regions for being split to video clip；
Recognition unit, for identification with the target moving object of designated shape in video pictures；
Determination unit, for determining that target area, the target area are multiple institutes according to the direction of the target moving object
State one in region；
Control unit focuses to the target area for controlling video camera.
7. a kind of video presenter, which is characterized in that the exhibition booth includes:
Video camera, for shooting video；
Data processing module, for identification with the target moving object of designated shape in video pictures, and according to the target
The direction of moving object determines target area.
8. video presenter according to claim 7, which is characterized in that the exhibition booth includes:
Memory module, for storing the video of the video camera shooting.
9. video presenter according to claim 8, which is characterized in that the exhibition booth includes:
Video output interface is connected with external equipment, for exporting the video of the video camera shooting.
10. a kind of display systems, which is characterized in that the system comprises:
Video presenter as claimed in claim 7；
It shows equipment, is connect with the video presenter, for showing the video of video camera shooting.
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