CN106612382A - Method and device for acquiring static images - Google Patents
Method and device for acquiring static images Download PDFInfo
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- CN106612382A CN106612382A CN201511031778.XA CN201511031778A CN106612382A CN 106612382 A CN106612382 A CN 106612382A CN 201511031778 A CN201511031778 A CN 201511031778A CN 106612382 A CN106612382 A CN 106612382A
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- image
- image acquisition
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- imaging device
- collection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00127—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
- H04N1/00249—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a photographic apparatus, e.g. a photographic printer or a projector
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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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/265—Mixing
Abstract
The embodiment of the invention discloses a method and device for acquiring static images, which are applied to scanning imaging equipment. The method comprises the following steps: acquiring a scanning period T0 of scanning a frame of image by the scanning imaging equipment and exposure time Texp of an image acquisition unit; determining the number N of scanning period required to acquire a complete image according to a numerical relationship between the scanning period T0 and the exposure time Texp; calling the image acquisition unit to acquire images according to a preset image acquisition rule; and performing image synthesis on N acquired images, and obtaining the complete image for a scanned image of the scanning imaging equipment. The scheme provided by the embodiment of the invention is used for acquiring the images, and the complete image of the scanned imaged of the scanning imaging equipment can be easily acquired.
Description
Technical field
The present invention relates to technical field of image processing, more particularly to a kind of method and device of collection still image.
Background technology
With developing rapidly for electronic technology, scan-type imaging device is also seen everywhere, because of its quilt of many uses
Increasing people are of interest and like, at present, scan-type imaging device be widely used to business office,
Video teaching, home theater, cinema etc..Scan-type imaging device can be divided into from different angles
Scan-type imaging device for example, can be divided into by plurality of classes according to scanning source：Laser scan type is imaged
Equipment, noctovisor scan formula imaging device, electronic scanning type imaging device etc..
In practical application, user may may require that the scanogram to scan-type imaging device carries out image acquisition,
However, the scanogram of scan-type imaging device be scan-type imaging device within a scan period with pointwise
What the mode of scanning was imaged, and as the time of exposure of image capture device under normal circumstances is swept less than above-mentioned
The cycle is retouched, so, scan-type imaging device is only capable of scanning the part for completing image in the above-mentioned time of exposure,
And then during the scanogram of image capture device acquisition scans formula imaging device, it is difficult to collect complete image.
The content of the invention
The embodiment of the invention discloses a kind of method and device of collection still image, is swept with readily collecting
Retouch the complete image of the scanogram of formula imaging device.
In order to achieve the above object, the embodiment of the invention discloses it is a kind of collection still image method, including
Step：
Obtain the scan period T that the scan-type imaging device scans a frame scan image0And image acquisition units
Time of exposure Texp；
According to the scan period T0With the time of exposure TexpBetween numerical relation, it is determined that collection one it is complete
The scan period number N that whole image needs；
Image acquisition units are called according to default image acquisition rule collection image, wherein, described image is adopted
Collection unit only gathers a width figure in every scan cycle of N number of scan period of the scan-type imaging device
Picture, the default image acquisition rule are used to specify described image collecting unit in every scan cycle
Image acquisition triggering moment, to ensure that gathered a N width of the image comprising the scan-type imaging device is swept
All the elements of tracing picture；
The N image to being gathered carries out image synthesis, obtains the scanning figure for the scan-type imaging device
One width complete image of picture.
Preferably, described according to the scan period T0With the time of exposure TexpBetween numerical relation, really
Surely the scan period number N of width complete image needs is gathered, including：
According to the scan period T0With the time of exposure Texp, according to relationship below,
T0/N≤Texp<T0/ (N-1),
It is determined that the scan period number needed for one width complete image of collection is N.
Preferably, described call image acquisition units to gather image according to default image acquisition rule, including：
Triggered by way of sending electric signal image acquisition units are called according to default image acquisition rule
Collection image；Or
Triggered by way of sending optics LED flickers image acquisition units are called according to default image acquisition
Rule collection image.
Preferably, described call image acquisition units to gather image according to default image acquisition rule, including：
According to default image acquisition rule, determine each in N number of scan period of the scan-type imaging device
Scan period corresponding image acquisition triggering moment；
Between two image acquisition triggering moments adjacent in image acquisition triggering moment determined by acquisition when
Between be spaced；
During earliest in image acquisition triggering moment determined by arrival image acquisition triggering moment, calling figure
As collecting unit carries out image acquisition, and above-mentioned obtained time interval is sent to described image collecting unit,
So that described image collecting unit carries out image acquisition according to above-mentioned obtained time interval.
Preferably, described call image acquisition units to gather image according to default image acquisition rule, including：
According to default image acquisition rule, determine each in N number of scan period of the scan-type imaging device
Scan period corresponding image acquisition triggering moment；
In each image acquisition triggering moment determined by arrival, described image collecting unit is called to carry out figure
As collection.
Preferably, the N image to being gathered carries out image synthesis, obtain being imaged for the scan-type
One width complete image of the scanogram of equipment, including：
It is determined that the scans content region in the N for being gathered image；
The scans content region position in the picture according to determined by, the N image to being gathered are carried out
Image synthesizes, and obtains a width complete image of the scanogram for the scan-type imaging device.
In order to achieve the above object, the embodiment of the invention discloses it is a kind of collection still image device, including：
Hardware parameter obtains module, scans sweeping for a frame scan image for obtaining the scan-type imaging device
Retouch cycle T0With the time of exposure T of image acquisition unitsexp；
Scan period number determining module, for according to the scan period T0With the time of exposure TexpBetween
Numerical relation, it is determined that the scan period number N that one width complete image of collection needs；
Image capture module, for calling image acquisition units according to default image acquisition rule collection image,
Wherein, every scan cycle of the described image collecting unit in N number of scan period of the scan-type imaging device
Piece image is only gathered inside, the default image acquisition rule is used to specify described image collecting unit every
Image acquisition triggering moment in scan cycle, with ensure gathered N image comprising the scan-type into
As all the elements of a width scanogram of equipment；
Image synthesis unit, carries out image synthesis for the N to being gathered image, obtains for the scanning
One width complete image of the scanogram of formula imaging device.
Preferably, the scan period number determining module, specifically for：
According to the scan period T0With the time of exposure Texp, according to relationship below,
T0/N≤Texp<T0/ (N-1),
It is determined that the scan period number needed for one width complete image of collection is N.
Preferably, described image acquisition module, specifically for：
Triggered by way of sending electric signal image acquisition units are called according to default image acquisition rule
Collection image；Or
Triggered by way of sending optics LED flickers image acquisition units are called according to default image acquisition
Rule collection image.
Preferably, described image acquisition module, including：
First triggering moment determination sub-module, for according to default image acquisition rule, determining the scanning
Per the corresponding image acquisition triggering moment of scan cycle in N number of scan period of formula imaging device；
Time interval obtains submodule, for two adjacent in image acquisition triggering moment determined by acquisition
Time interval between image acquisition triggering moment；
First image acquisition submodule, for earliest figure in image acquisition triggering moment determined by arrival
During as the trigger collection moment, image acquisition units are called to carry out image acquisition, and to described image collecting unit
Above-mentioned obtained time interval is sent, so that described image collecting unit is according to above-mentioned the obtained time
Interval carries out image acquisition.
Preferably, described image acquisition module, including：
Second triggering moment determination sub-module, for according to default image acquisition rule, determining the scanning
Per the corresponding image acquisition triggering moment of scan cycle in N number of scan period of formula imaging device；
Second image acquisition submodule, in each image acquisition triggering moment determined by arrival, adjusting
Image acquisition is carried out with described image collecting unit.
Preferably, described image synthesis module, including：
Region determination sub-module, for determining the scans content region in gathered N image；
Image synthesizes submodule, for scans content region position in the picture determined by basis,
The N image to being gathered carries out image synthesis, obtains the scanogram for the scan-type imaging device
A width complete image.
In scheme provided in an embodiment of the present invention, scan-type imaging device obtains the scan-type imaging device and sweeps
Retouch the scan period T of a frame scan image0With the time of exposure T of image acquisition unitsexpAfterwards, according to the scan period
T0With time of exposure TexpBetween numerical relation, it is determined that collection one width complete image need scan period number N,
Then, image acquisition units are called according to default image acquisition rule collection N images, and to being gathered
N images carry out image synthesis, and then obtain a width complete graph of the scanogram for scan-type imaging device
Picture.Although being only capable of collecting above-mentioned scan-type imaging device in an exposure cycle of image acquisition units
A part for scanogram, but in scheme provided in an embodiment of the present invention, by scan-type imaging device
Multiple scan periods in carry out the mode of image acquisition, it is ensured that the various pieces of scanogram can be collected,
Therefore, it is possible to the complete of the scanogram that readily collects scan-type imaging device by way of synthesizing image
Whole image.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to implementing
Example or accompanying drawing to be used needed for description of the prior art are briefly described, it should be apparent that, describe below
In accompanying drawing be only some embodiments of the present invention, for those of ordinary skill in the art, do not paying
On the premise of going out creative work, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is a kind of schematic flow sheet of the method for collection still image provided in an embodiment of the present invention；
Fig. 2 is the schematic flow sheet of the method for another kind of collection still image provided in an embodiment of the present invention；
Fig. 3 is the schematic flow sheet of the method for another kind of collection still image provided in an embodiment of the present invention；
Fig. 4 (a) is a kind of pulse schematic diagram provided in an embodiment of the present invention；
Fig. 4 (b) is another kind of pulse schematic diagram provided in an embodiment of the present invention；
Fig. 5 is the schematic flow sheet of the method for another kind of collection still image provided in an embodiment of the present invention；
Fig. 6 is a kind of structural representation of the device of collection still image provided in an embodiment of the present invention；
Fig. 7 is the structural representation of the device of another kind of collection still image provided in an embodiment of the present invention；
Fig. 8 is the structural representation of the device of another kind of collection still image provided in an embodiment of the present invention；
Fig. 9 is the structural representation of the device of another kind of collection still image provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of the invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
Property work under the premise of the every other embodiment that obtained, belong to the scope of protection of the invention.
A kind of method and device of collection still image is embodiments provided, scan-type imaging is applied to
Equipment, specifically, during scan-type imaging device collection still image, obtains the scan-type imaging device and sweeps
Retouch the scan period T of a frame scan image0With the time of exposure T of image acquisition unitsexp, according to the scanning week
Phase T0With the time of exposure TexpBetween numerical relation, it is determined that collection one width complete image need scanning week
Issue N, calls image acquisition units according to default image acquisition rule collection image, wherein, described image
Collecting unit only gathers a width in every scan cycle of N number of scan period of the scan-type imaging device
Image, the default image acquisition rule are used to specify described image collecting unit in every scan cycle
Image acquisition triggering moment, to ensure gathered a N width of the image comprising the scan-type imaging device
All the elements of scanogram, the N image to being gathered carry out image synthesis, obtain for the scan-type
One width complete image of the scanogram of imaging device.
Below by specific embodiment, the present invention is described in detail.
Fig. 1 is a kind of schematic flow sheet of the method for collection still image provided in an embodiment of the present invention, including such as
Lower step：
S1：Obtain the scan period T that scan-type imaging device scans a frame scan image0And image acquisition units
Time of exposure Texp。
Understandable to be, scan-type imaging device can be laser scan type imaging device, noctovisor scan
Formula imaging device, electronic scanning type imaging device, can also be MEMS based on laser
(Micro-Electro-Mechanical System, MEMS) spacescan projector equipment etc., this
Bright not doing to scan-type imaging device further limits.
Those skilled in the art are it is understood that scan-type imaging device scans a frame scan image
Scan period T0Usually determined by the hardware parameter of scan-type imaging device, the refreshing of such as scanogram
Rate, resolution of projects images etc..
The time of exposure T of image acquisition unitsexpAmbient light usually by residing for image acquisition units and
What the hardware parameter of image acquisition units was together decided on, wherein, ambient light is that image acquisition units are residing answers
With the ambient light of scene, the related letter of ambient light can be obtained by light sensor in image acquisition units
Breath, and the signal of telecommunication is translated into, image acquisition units adjust time of exposure further according to the signal of telecommunication；It is above-mentioned
The hardware parameter of image acquisition units, can be light sensitivity of shutter speed, light sensor etc., the application
The concrete form of the hardware parameter of image acquisition units is not defined.
S2：According to the scan period T0With the time of exposure TexpBetween numerical relation, it is determined that collection one
The scan period number N that width complete image needs.
In a kind of specific implementation of the application, can be according to the scan period T0With during the exposure
Between Texp, according to relationship below,
T0/N≤Texp<T0/ (N-1),
It is determined that the scan period number needed for one width complete image of collection is N.
It is worth emphasizing that scan period number N determined by above-mentioned relation formula is positive integer.For example, it is described to sweep
Retouch cycle T0For 0.5 second, the time of exposure TexpFor 0.3 second, due to 0.5/2<0.3<0.5, so this
In the case of N=2 in above-mentioned relation formula, i.e., determined by scan period number be 2.For another example, the scan period
T0For 0.8 second, the time of exposure TexpFor 0.3 second, due to 0.8/3<0.3<0.8/2, so such case
N=3 in lower above-mentioned relation formula, i.e., determined by scan period number be 3.
S3：Image acquisition units are called according to default image acquisition rule collection image.
Wherein, described image collecting unit was often swept in N number of scan period of the scan-type imaging device
Retouch and in the cycle, only gather piece image, the default image acquisition rule is single for specifying described image collection
Image acquisition triggering moment of the unit in every scan cycle, to ensure gathered N image comprising described
All the elements of one width scanogram of scan-type imaging device.
Specifically, above-mentioned image acquisition units can be photographic head, photographing unit, video camera etc., the application
The concrete manifestation form of image acquisition units is not defined.
It should be understood that image acquisition units can be a part for above-mentioned scan-type imaging device, this feelings
Under condition, the portions such as the main control unit of image acquisition units and scan-type imaging device can be realized by wired mode
/ connection.In consideration of it, in a kind of specific implementation of the application, scan-type imaging device can
Image acquisition units are called to trigger by way of sending electric signal.The process of implementing is, first in figure
As being connected with data wire between collecting unit and scan-type imaging device, then by the corresponding number of the data wire
It is believed that number coming the scanning mode of indication scan-type imaging device, specifically, the corresponding data signal of the data wire
Can be configured by the depositor inside scan-type imaging device, when scan-type imaging device every one scan week
When image acquisition triggering moment in phase arrives, image acquisition units are acquired image, are imaged in scan-type
Piece image is gathered only in every scan cycle in N number of scan period of equipment, to ensure gathered N
Open all the elements of a width scanogram of the image comprising the scan-type imaging device.
Certainly, image acquisition units may not be a part for above-mentioned scan-type imaging device, but pass through
The external equipment that WLAN, bluetooth etc. are connected with scan-type imaging device.Specifically, work as image acquisition
Unit not on scan-type imaging device when, scan-type imaging device can be by sending optics LED flicker etc.
Mode is triggered calls photographic head, and the process of implementing is, first in image acquisition units and scan-type imaging device
Between set up communication connection by way of wireless connection, the form for wirelessly connecting has a lot, for example：Bluetooth
Pairing connection, Internet of Things connection, the connection of Wifi wireless signals etc..Scan-type imaging device is with lightening LED lamp
As drive signal, when the image acquisition triggering moment in the every scan cycle of scan-type imaging device arrives,
Lightening LED lamp, image acquisition units start photographic head after recognizing drive signal, in scan-type imaging device
N number of scan period in every scan cycle in only gather piece image, to ensure gathered N image
All the elements of a width scanogram comprising the scan-type imaging device, of course, it is possible to believe as driving
Number carrier have a lot, such as：Laser, sound, infrared ray etc., the application is not defined to this.
S4：The N image to being gathered carries out image synthesis, obtains for the scan-type imaging device
One width complete image of scanogram.
Specifically, image in every scan cycle of N number of scan period of scan-type imaging device in S3 is adopted
The common N image gathered by collection unit carries out image synthesis, obtains sweeping for the scan-type imaging device
One width complete image of tracing picture.
As seen from the above, in the scheme that the present embodiment is provided, scan-type imaging device obtain the scan-type into
As the scan period T of one frame scan image of device scan0With the time of exposure T of image acquisition unitsexpAfterwards, according to
Scan period T0With time of exposure TexpBetween numerical relation, it is determined that collection one width complete image need scanning
Periodicity N, then, calls image acquisition units according to default image acquisition rule N image of collection, and
Carry out image synthesis to the N that gathered image, and then obtain the scanogram for scan-type imaging device
One width complete image.Although being only capable of collecting above-mentioned scan-type in an exposure cycle of image acquisition units
A part for the scanogram of imaging device, but in scheme provided in an embodiment of the present invention, by scanning
The mode of image acquisition is carried out in multiple scan periods of formula imaging device, it is ensured that scanogram can be collected
Various pieces, therefore, it is possible to scan-type imaging device is readily collected by way of synthesizing image
The complete image of scanogram.
After those skilled in the art are it is understood that S2 is calculated scan period number, Ke Yiyou
Image acquisition units actively carry out image acquisition when it is determined that reaching the image acquisition moment in each cycle, may be used also
During being that scan-type imaging device judges the image acquisition moment that must reach each cycle, letter is called by sending
Number mode call image acquisition units to carry out image acquisition, below by two embodiments pair of Fig. 2 and Fig. 3
Above two is illustrated respectively.
Fig. 2 is the schematic flow sheet of the method for another kind of collection still image provided in an embodiment of the present invention, with
Embodiment illustrated in fig. 1 is compared, and in the present embodiment, calls image acquisition units to advise according to default image acquisition
Image (S3) is gathered then, including：
S31：According to default image acquisition rule, N number of scan period of the scan-type imaging device is determined
In per scan cycle corresponding image acquisition triggering moment.
As image acquisition units are merely capable of collecting a part for scanogram within the scan period,
So, be to ensure complete scanogram to be obtained in that using scheme provided in an embodiment of the present invention, determined
N number of week need to be ensured per the corresponding image acquisition triggering moment of scan cycle in the above-mentioned N number of scan period for going out
The image collected in phase can include the various pieces in a width complete image.
Those skilled in the art are it is understood that image acquisition units are being touched it is determined that reaching image acquisition
Send out after the moment when really image acquisition is proceeded by, need certain time delay, the time delay is by image acquisition
The hardware factors such as unit determine, in consideration of it, it is determined that each scan period image acquisition triggering moment when,
Above-mentioned Delay can be considered in the lump.
For example：It is assumed that scan-type imaging device scans the scan period T of a frame scan image0For 0.8 second, image
The time of exposure T of collecting unitexpFor 0.3 second, can determine that scan period number is 3 according to S2, be computed obtaining
Arrive, need to start 3 image acquisition units and complete 3 exposures and take pictures to obtain 3 images, in each scan period
Only complete 1 exposure to take pictures and obtain 1 image, if it is desired at the 1/3 of second scan period, image acquisition
Unit carries out image acquisition, around the 3rd scanning 2/3 when, image acquisition units carry out image acquisition, then
Can determine that second scan period corresponding image acquisition triggering moment is：1/3 of second scan period
Put the corresponding moment-above-mentioned time delay, it may be determined that the 3rd scan period, corresponding image acquisition triggering moment was：
The 1/3 position corresponding moment-above-mentioned time delay of the 3rd scan period.First scanning is not limited in this example
Cycle corresponding image acquisition is set out the calculation at moment, specifically, can be counted according to other modes
Calculate.
S32：Between two image acquisition triggering moments adjacent in image acquisition triggering moment determined by acquisition
Time interval.
Specifically, scan-type imaging device will be the adjacent image sampling triggering moment determined in S31 poor,
Obtain the time interval between adjacent two image acquisition triggering moments in image acquisition triggering moment.
S33：During earliest in image acquisition triggering moment determined by arrival image acquisition triggering moment, adjust
Image acquisition is carried out with image acquisition units, and above-mentioned the obtained time is sent to described image collecting unit
Interval, so that described image collecting unit carries out image acquisition according to above-mentioned obtained time interval.
It should be noted that in the present embodiment, image acquisition units need to have clocking capability.
In practical application, two image acquisition adjacent in the image acquisition triggering moment obtained in S32 are touched
Send out the moment between time interval send image acquisition units to after, when image acquisition units scan-type be imaged
When the 1st scan period corresponding image acquisition triggering moment of equipment arrives, scan-type imaging device is called
Image acquisition units, start photographic head exposure and take pictures, and while startup order is performed, scan-type imaging sets
It is standby to send the 1st time interval to image acquisition units, while image acquisition units start timing, work as figure
When reaching the time interval between the 1st image acquisition and the 2nd image acquisition as collecting unit timing, figure
As collecting unit proceeds by the 2nd image acquisition, and restart timing from zero, then, carry out according to this
Subsequent image acquisition, obtains N image.
As seen from the above, in the present embodiment, scan-type imaging device is calculated adjacent two image acquisition
After time interval between triggering moment, these time interval datas are sent to into image acquisition units, by scheming
As collecting unit control carries out image acquisition, N image is obtained, effectively can be mitigated in image acquisition process
The operating pressure of scan-type imaging device.
Fig. 3 is the schematic flow sheet of the method for another kind of collection still image provided in an embodiment of the present invention, with
Embodiment illustrated in fig. 1 is compared, and in the present embodiment, calls image acquisition units to advise according to default image acquisition
Image (S3) is gathered then, including：
S34：According to pre-set image collection rule, in determining N number of scan period of the scan-type imaging device
Per the corresponding image acquisition triggering moment of scan cycle.
Those skilled in the art are it is understood that when the signal transmission between hardware cell needs transmission
Between, further, since the characteristic of hardware, image acquisition units are received after trigger to starting collection figure
As usually there will be certain start-up study before, therefore, it is determined that N number of scanning week of scan-type imaging device
It is interim, to consider by above-mentioned transmission time and startup during corresponding image acquisition triggering moment per scan cycle
The overall time delay of the information such as time delay composition.Specifically, above-mentioned overall time delay is typically by scan-type imaging device
Scan period T0With the time of exposure T of image acquisition unitsexpAnd the factor such as image acquisition units local environment
Together decide on.Further, it is assumed that ideally, want to allow image acquisition units in moment TnCarry out image
Collection, then can be in moment T for guarantee image acquisition unitsnStart to gather image, it may be determined that moment TnCorrespondence
Image acquisition triggering moment be Tn- above-mentioned overall time delay.
S35：In each image acquisition triggering moment determined by arrival, described image collecting unit is called to enter
Row image acquisition.
In the present embodiment, scan-type imaging device without the need for by the N number of scan period obtained in S34 each sweep
Retouch cycle corresponding image acquisition triggering moment and send image acquisition units to, but S34 is reached in monitoring
During each image acquisition triggering moment determined, scan-type imaging device calls image acquisition units, starts
Photographic head, gathers corresponding image.
Learnt by described above, image acquisition units can be and scan-type imaging device one, can be with
It is not and scan-type imaging device one, specifically, in image acquisition units and scan-type imaging device one
In the case of body, the equipment can start image acquisition units collection by way of data line transfer signal
Image；Image acquisition units not with scan-type imaging device one in the case of, the equipment can pass through point
The mode of bright display lamp starts image acquisition units collection image.
It should be noted that the application is simply illustrated as a example by above-mentioned, in practical application, scan-type into
As the concrete mode that equipment calls image acquisition units gather image is not limited to that.
The present embodiment is described in detail below by instantiation.
1) when, for image acquisition units and scan-type imaging device one
Realization can be engaged by data wire and depositor and call image acquisition units.Specifically, sweeping
Retouch, with
PARTIAL_INT representing the transmission signal of above-mentioned hardware connection, wherein, PARTIAL_INT is used for indication
The scanning mode of a frame scan image inside scan-type imaging device.
Inside scan-type imaging device, can newly define a set of depositor to configure PARTIAL_INT signals.
Specifically, several depositors be can be defined as follows：
REG_NEW_1：Bit0=0/1, enables part field sync signal PARTIAL_INT；
REG_NEW_1：Bit1=0/1, configuration repeat to load automatically；
REG_NEW_1：Bit2=0/1, enables and drives instruction modulating signal；
REG_NEW_2：Bit0～7, N=1,2,3,4,5N represent that every 1/N frames threshold triggers are interrupted；
REG_NEW_3：Bit0～15, arrange the time delay of output PARTIAL_INT, 1bit=TD_INT。
Specifically, referring to Fig. 4 (a), there is provided a kind of signal pulse schematic diagram, in the schematic diagram, show root
According to TD_INTDetermine the situation of three scan periods corresponding image acquisition triggering moment.
2) when, for image acquisition units and scan-type imaging device one
It is above-mentioned 1) on the basis of, two depositors can also be defined as follows：
REG_NEW_4：Bit0～15, arrange display lamp output pulse delay 1bit=TD_IND；
REG_NEW_5：Bit0～15, arrange display lamp output pulse width WPULSE。
It is assumed that scan-type imaging device scans the scan period T of a frame scan image0For 0.5 second, image acquisition list
The time of exposure T of unitexpFor 0.3 second, can determine that scan period number is 2 according to S2, be computed obtaining, need
Start 2 image acquisition units to complete 2 exposures and take pictures to obtain 2 images, only complete in each scan period
1 exposure is taken pictures and obtains 1 image, and the 1st time image acquisition triggering moment is swept for scan-type imaging device the 1st
Retouch intermittent scanning image start time-TD_IND, i.e., the 1st time exposure is taken pictures is touched in the 1st image acquisition
When sending out moment arrival, above-mentioned scan-type imaging device starts image acquisition units carries out image acquisition；2nd image
The trigger collection moment be the 2nd 1/2 position of scan period scanogram of scan-type imaging device correspondence moment-
TD_IND。
Specifically, referring to Fig. 4 (b), Fig. 4 (b) is there is provided another kind of signal pulse schematic diagram, the schematic diagram
In show the situation that two scan periods corresponding image acquisition triggering moment is determined according to TD_IND.
In the scheme that the present embodiment is provided, scan-type imaging device is monitoring corresponding image of every one scan week
During the collection moment, image acquisition units are just called to carry out image acquisition, image acquisition units need not have timing
Etc. function, the requirement to image acquisition units is relatively low.
Fig. 5 is the schematic flow sheet of the method for another kind of collection still image provided in an embodiment of the present invention, with
Embodiment illustrated in fig. 1 is compared, and in the present embodiment, the N image to being gathered carries out image synthesis, obtains
For a width complete image (S4) of the scanogram of the scan-type imaging device, including：
S41：It is determined that the scans content region in the N for being gathered image.
By the collection moment that can be seen that each image described above corresponding to the spy in a scan period
Timing is carved, and moment corresponding scans contents different in every scan cycle is located at the not same district of scanogram
Domain, therefore, it can the corresponding relation between the collection moment and scan period according to the N for being gathered image,
Obtain the region at scans content place in this N image.
The present invention is not construed as limiting to the image-region mode for determining collection, in addition to aforesaid way, it is determined that collection
Image-region be named as when can also first pass through the acquired image in image acquisition image correspondence scan-type into
As the scan period number n of equipment, this mode is easy for can determine that the residing region of collection image is n/N.
S42：The scans content region position in the picture according to determined by, to the N figure for being gathered
As carrying out image synthesis, a width complete image of the scanogram for the scan-type imaging device is obtained.
Specifically, after S41 determines every pictures in the region residing for scanogram content, can basis
The corresponding image overlapping region of each two adjacent area collection is covered, and obtains 1 new image, according to
It is secondary that remaining N-1 image is finally superposed to into the complete image of a width according to this rule.
It is corresponding, can be in another kind of image-region mode for determining collection according to S41, will be named
Good image is overlapped coverings by the order from little arrival, obtains final opening image full content comprising N
A width complete image.
Using the scheme that the present embodiment is provided, area residing for each image in image synthesizing procedure, can be accurately known
Domain, and the complete image of a width is synthesized, effectively reduce the algorithm complex of image synthesis.
Fig. 6 is a kind of structural representation of the device of collection still image provided in an embodiment of the present invention, with Fig. 1
Shown method flow diagram correspondence, obtains module 1, scan period number determining module 2, figure including hardware parameter
As acquisition module 3, image synthesis unit 4.
Wherein, hardware parameter obtains module 1, scans a frame scan figure for obtaining the scan-type imaging device
The scan period T of picture0With the time of exposure T of image acquisition unitsexp；
Scan period number determining module 2, for according to the scan period T0With the time of exposure TexpBetween
Numerical relation, it is determined that collection one width complete image need scan period number N；
Image capture module 3, for calling image acquisition units according to default image acquisition rule collection image.
Wherein, described image collecting unit was often swept in N number of scan period of the scan-type imaging device
Retouch and in the cycle, only gather piece image, the default image acquisition rule is single for specifying described image collection
Image acquisition triggering moment of the unit in every scan cycle, to ensure gathered N image comprising described
All the elements of one width scanogram of scan-type imaging device.
Image synthesis unit 4, carries out image synthesis for the N to being gathered image, obtains for described
One width complete image of the scanogram of scan-type imaging device.
As seen from the above, in the scheme that the present embodiment is provided, scan-type imaging device obtain the scan-type into
As the scan period T of one frame scan image of device scan0With the time of exposure T of image acquisition unitsexpAfterwards, according to
Scan period T0With time of exposure TexpBetween numerical relation, it is determined that collection one width complete image need scanning
Periodicity N, then, calls image acquisition units according to default image acquisition rule N image of collection, and
Carry out image synthesis to the N that gathered image, and then obtain the scanogram for scan-type imaging device
One width complete image.Although being only capable of collecting above-mentioned scan-type in an exposure cycle of image acquisition units
A part for the scanogram of imaging device, but in scheme provided in an embodiment of the present invention, by scanning
The mode of image acquisition is carried out in multiple scan periods of formula imaging device, it is ensured that scanogram can be collected
Various pieces, therefore, it is possible to scan-type imaging device is readily collected by way of synthesizing image
The complete image of scanogram.
Fig. 7 is the structural representation of the device of another kind of collection still image provided in an embodiment of the present invention, with
Embodiment illustrated in fig. 6 is compared, in the present embodiment, image capture module 3, including：
First triggering moment determination sub-module 31, for according to default image acquisition rule, it is determined that described sweep
Per the corresponding image acquisition triggering moment of scan cycle in the N number of scan period for retouching formula imaging device.
Time interval obtains submodule 32, in image acquisition triggering moment determined by acquisition adjacent two
Time interval between individual image acquisition triggering moment.
First image acquisition submodule 33, for earliest in image acquisition triggering moment determined by arrival
During image acquisition triggering moment, image acquisition units are called to carry out image acquisition, and it is single to described image collection
Unit sends above-mentioned obtained time interval so that described image collecting unit according to it is above-mentioned obtained when
Between interval carry out image acquisition.
As seen from the above, in the present embodiment, scan-type imaging device is calculated adjacent two image acquisition
After time interval between triggering moment, these time interval datas are sent to into image acquisition units, by scheming
As collecting unit control carries out image acquisition, N image is obtained, effectively can be mitigated in image acquisition process
The operating pressure of scan-type imaging device.
Fig. 8 is the structural representation of the device of another kind of collection still image provided in an embodiment of the present invention, with
Embodiment illustrated in fig. 6 is compared, in the present embodiment, image capture module 3, including：
Second triggering moment determination sub-module 34, for according to default image acquisition rule, it is determined that described sweep
Per the corresponding image acquisition triggering moment of scan cycle in the N number of scan period for retouching formula imaging device；.
Second image acquisition submodule 35, in each image acquisition triggering moment determined by arrival,
Described image collecting unit is called to carry out image acquisition.
In the scheme that the present embodiment is provided, it is corresponding that scan-type imaging device reaches each scanning week in monitoring
During the image acquisition moment, image acquisition units are just called to carry out image acquisition, image acquisition units need not have
Calendar scheduling function, the requirement to image acquisition units are relatively low.
Fig. 9 is the structural representation of the device of another kind of collection still image provided in an embodiment of the present invention, with
Embodiment illustrated in fig. 5 is compared, in the present embodiment, image synthesis unit 4, including：
Region determination sub-module 41, for determining the scans content region in gathered N image.
Image synthesizes submodule 42, for scans content region position in the picture determined by basis,
The N image to being gathered carries out image synthesis, obtains the scanogram for the scan-type imaging device
A width complete image.
In the scheme that the present embodiment is provided, region residing for each image in image synthesizing procedure, can be accurately known,
And the complete image of a width is synthesized, effectively reduce the algorithm complex of image synthesis.
For device embodiment, as which is substantially similar to embodiment of the method, so the comparison of description is simple
Single, related part refers to the corresponding part explanation in embodiment of the method.
It should be noted that herein, such as first and second or the like relational terms be used merely to by
One entity or operation are made a distinction with another entity or operation, and are not necessarily required or implied these
There is any this actual relation or order between entity or operation.And, term " including ", "comprising"
Or its any other variant is intended to including for nonexcludability, so that including a series of mistake of key elements
Journey, method, article or equipment not only include those key elements, but also including be not expressly set out other
Key element, or also include the key element intrinsic for this process, method, article or equipment.Do not having
In the case of more restrictions, the key element limited by sentence "including a ...", it is not excluded that wanting including described
The process of element, method, also there is other identical element in article or equipment.
Each embodiment in this specification is described by the way of correlation, phase homophase between each embodiment
As part mutually referring to what each embodiment was stressed is the difference with other embodiment.
For especially for device embodiment, as which is substantially similar to embodiment of the method, so the comparison of description
Simply, related part is illustrated referring to the part of embodiment of the method.
One of ordinary skill in the art will appreciate that realizing all or part of step in said method embodiment
Program be can be by instruct the hardware of correlation to complete, described program can be stored in computer-readable
Take in storage medium, the storage medium for obtaining designated herein, such as：ROM/RAM, magnetic disc, CD etc..
Presently preferred embodiments of the present invention is the foregoing is only, protection scope of the present invention is not intended to limit.
All any modification, equivalent substitution and improvements made within the spirit and principles in the present invention etc., are all contained in
In protection scope of the present invention.
Claims (12)
1. a kind of method of collection still image, is applied to scan-type imaging device, it is characterised in that described
The scanogram of scan-type imaging device is still image, and methods described includes step：
Obtain the scan period T that the scan-type imaging device scans a frame scan image0And image acquisition units
Time of exposure Texp；
According to the scan period T0With the time of exposure TexpBetween numerical relation, it is determined that collection one it is complete
The scan period number N that whole image needs；
Image acquisition units are called according to default image acquisition rule collection image, wherein, described image is adopted
Collection unit only gathers a width figure in every scan cycle of N number of scan period of the scan-type imaging device
Picture, the default image acquisition rule are used to specify described image collecting unit in every scan cycle
Image acquisition triggering moment, to ensure that gathered a N width of the image comprising the scan-type imaging device is swept
All the elements of tracing picture；
The N image to being gathered carries out image synthesis, obtains the scanning figure for the scan-type imaging device
One width complete image of picture.
2. method according to claim 1, it is characterised in that described according to the scan period T0With
The time of exposure TexpBetween numerical relation, it is determined that collection one width complete image need scan period number N,
Including：
According to the scan period T0With the time of exposure Texp, according to relationship below,
T0/N≤Texp<T0/ (N-1),
It is determined that the scan period number needed for one width complete image of collection is N.
3. method according to claim 1 and 2, it is characterised in that it is described call image acquisition units by
Image is gathered according to default image acquisition rule, including：
Triggered by way of sending electric signal image acquisition units are called according to default image acquisition rule
Collection image；Or
Triggered by way of sending optics LED flickers image acquisition units are called according to default image acquisition
Rule collection image.
4. method according to claim 1 or claim 2, it is characterised in that it is described call image acquisition units according to
Default image acquisition rule collection image, including：
According to default image acquisition rule, determine each in N number of scan period of the scan-type imaging device
Scan period corresponding image acquisition triggering moment；
Between two image acquisition triggering moments adjacent in image acquisition triggering moment determined by acquisition when
Between be spaced；
During earliest in image acquisition triggering moment determined by arrival image acquisition triggering moment, calling figure
As collecting unit carries out image acquisition, and above-mentioned obtained time interval is sent to described image collecting unit,
So that described image collecting unit carries out image acquisition according to above-mentioned obtained time interval.
5. method according to claim 1 or claim 2, it is characterised in that it is described call image acquisition units according to
Default image acquisition rule collection image, including：
According to default image acquisition rule, determine each in N number of scan period of the scan-type imaging device
Scan period corresponding image acquisition triggering moment；
In each image acquisition triggering moment determined by arrival, described image collecting unit is called to carry out figure
As collection.
6. method according to claim 1, it is characterised in that the N image to being gathered is carried out
Image synthesizes, and obtains a width complete image of the scanogram for the scan-type imaging device, including：
It is determined that the scans content region in the N for being gathered image；
The scans content region position in the picture according to determined by, the N image to being gathered are carried out
Image synthesizes, and obtains a width complete image of the scanogram for the scan-type imaging device.
7. a kind of device of collection still image, is applied to scan-type imaging device, it is characterised in that described
The scanogram of scan-type imaging device is still image, and described device includes：
Hardware parameter obtains module, scans sweeping for a frame scan image for obtaining the scan-type imaging device
Retouch cycle T0With the time of exposure T of image acquisition unitsexp；
Scan period number determining module, for according to the scan period T0With the time of exposure TexpBetween
Numerical relation, it is determined that the scan period number N that one width complete image of collection needs；
Image capture module, for calling image acquisition units according to default image acquisition rule collection image,
Wherein, every scan cycle of the described image collecting unit in N number of scan period of the scan-type imaging device
Piece image is only gathered inside, the default image acquisition rule is used to specify described image collecting unit every
Image acquisition triggering moment in scan cycle, with ensure gathered N image comprising the scan-type into
As all the elements of a width scanogram of equipment；
Image synthesis unit, carries out image synthesis for the N to being gathered image, obtains for the scanning
One width complete image of the scanogram of formula imaging device.
8. device according to claim 7, it is characterised in that the scan period number determining module,
Specifically for：
According to the scan period T0With the time of exposure Texp, according to relationship below,
T0/N≤Texp<T0/ (N-1),
It is determined that the scan period number needed for one width complete image of collection is N.
9. the device according to claim 7 or 8, it is characterised in that described image acquisition module, specifically
For：
Triggered by way of sending electric signal image acquisition units are called according to default image acquisition rule
Collection image；Or
Triggered by way of sending optics LED flickers image acquisition units are called according to default image acquisition
Rule collection image.
10. according to claim 7 or 8 described devices, it is characterised in that described image acquisition module, including：
First triggering moment determination sub-module, for according to default image acquisition rule, determining the scanning
Per the corresponding image acquisition triggering moment of scan cycle in N number of scan period of formula imaging device；
Time interval obtains submodule, for two adjacent in image acquisition triggering moment determined by acquisition
Time interval between image acquisition triggering moment；
First image acquisition submodule, for earliest figure in image acquisition triggering moment determined by arrival
During as the trigger collection moment, image acquisition units are called to carry out image acquisition, and to described image collecting unit
Above-mentioned obtained time interval is sent, so that described image collecting unit is according to above-mentioned the obtained time
Interval carries out image acquisition.
11. according to claim 7 or 8 described devices, it is characterised in that described image acquisition module, including：
Second triggering moment determination sub-module, for according to default image acquisition rule, determining the scanning
Per the corresponding image acquisition triggering moment of scan cycle in N number of scan period of formula imaging device；
Second image acquisition submodule, in each image acquisition triggering moment determined by arrival, adjusting
Image acquisition is carried out with described image collecting unit.
12. devices according to claim 7, it is characterised in that described image synthesis module, including：
Region determination sub-module, for determining the scans content region in gathered N image；
Image synthesizes submodule, for scans content region position in the picture determined by basis,
Image synthesis is carried out to the N that gathered image, scanogram for the scan-type imaging device is obtained
One width complete image.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201511031778.XA CN106612382B (en) | 2015-12-31 | 2015-12-31 | Method and device for collecting static image |
| PCT/CN2016/111248 WO2017114252A1 (en) | 2015-12-31 | 2016-12-21 | Static image collection method and device |
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| CN201511031778.XA CN106612382B (en) | 2015-12-31 | 2015-12-31 | Method and device for collecting static image |
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| CN115225542A (en) * | 2022-07-20 | 2022-10-21 | 北京京东乾石科技有限公司 | Video information processing method and device, electronic equipment and storage medium |
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| CN106612382B (en) | 2023-06-30 |
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