CN105496444B - Scan control method and scanning means - Google Patents
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- CN105496444B CN105496444B CN201510866760.5A CN201510866760A CN105496444B CN 105496444 B CN105496444 B CN 105496444B CN 201510866760 A CN201510866760 A CN 201510866760A CN 105496444 B CN105496444 B CN 105496444B
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- A—HUMAN NECESSITIES
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Abstract
The present invention provides a kind of scan control method and scanning means, the scan control method include：Image sensing processing unit sends out the first trigger signal；Projection process unit judges are from receiving the first trigger signal after first time period, in the first projected image to determinand for projecting in multiple projected images in second time period, before the first projected image is projected or when send out the second trigger signal；Image sensing processing unit judges, from the second trigger signal is received after the third period, to shoot determinand in the 4th period to obtain the first shooting picture；Until when the projection process unit judges multiple projected images to be projected have projected, projection process unit sends out image reset signal；For image sensing processing unit according to the image reset signal of reception and the number of shooting determinand, it is by picture of which projected when on determinand in multiple projected images to determine each first shooting picture.
Description
Technical field
The present invention relates to scanning means field more particularly to a kind of scan control methods and scanning means.
Background technology
In the prior art, scanner generates image using fixed grating and is projeced on determinand when being scanned, because
Raster image is fixed, can not arbitrarily convert projected image, and the accuracy for leading to 3D (three-dimensional) model of structure is poor.
Invention content
The purpose of the present invention is to provide a kind of scan control method and scanning means, to solve the above problems.
It in order to achieve the above object,, should for scanning means in a first aspect, the present invention provides a kind of scan control method
Scanning means includes image sensing processing unit, image acquisition unit, projection process unit and projecting cell, this method packet
It includes：
The image sensing processing unit sends out the first trigger signal to the projection process unit；
The projection process unit receives first trigger signal, judges from when receiving first trigger signal by first
Between after section, control the first projected image in the projecting cell multiple projected images to be projected in second time period to treating
It surveys on object, and the second trigger signal is sent out to the shadow before first projected image is projected or when projecting first projected image
As sense process unit；
The image sensing processing unit receives second trigger signal, judges from second trigger signal is received by the
After three periods, the image acquisition unit is controlled to shoot the determinand in the 4th period to obtain the first shooting picture；
The image sensing processing unit returns to above-mentioned the step of sending out first trigger signal to the projection process unit, and
The projection process unit repeat above-mentioned reception first trigger signal and later the step of, until the projection process unit judges should
When the multiple projected images to be projected have projected, which sends out image reset signal to image sensing processing
Unit；
After the image sensing processing unit receives the image reset signal, the image sensing processing unit is according to the image
Reset signal and the image acquisition unit shoot the number of the determinand, determine that each first shooting picture is to be intended to throw by this
Picture of which projected when on the determinand in multiple projected images of shadow；
Wherein, at least two projected images in the multiple projected images to be projected are different.
Preferably, the second time period was more than for the 4th period.
Preferably, judge that the image sensing processing unit returns from first shooting picture is obtained after the 5th period
The step of returning above-mentioned transmission first trigger signal.
Second aspect, the present invention provide a kind of scan control method, and for scanning means, which includes image sense
Processing unit, image acquisition unit, projection process unit and projecting cell, this method is surveyed to include：
The image sensing processing unit sends out third trigger signal to the projection process unit；
The projection process unit receives the third trigger signal, judges from when receiving the third trigger signal by the 9th
Between after section, the projecting cell is controlled to project the second projected image in the multiple projected images to be projected in the tenth period extremely
On the determinand；
The image sensing processing unit judges, from the third trigger signal is sent out after the 6th period, to control the image
Acquisition unit shoots determinand to obtain the second shooting picture in the 7th period；
The image sensing processing unit judges, from second shooting picture is obtained after the 8th period, to return to above-mentioned hair
The step of going out the third trigger signal to the projection process unit, and the projection process unit returns and receives the third trigger signal
And later the step of until when the projection process unit judges multiple projected images to be projected have projected, the projection process
Unit sends out image reset signal to the image sensing processing unit；
After the image sensing processing unit receives the image reset signal, the image sensing processing unit is according to the image
Reset signal and the image acquisition unit shoot the number of the determinand, determine that each second shooting picture is by being intended to project
Multiple projected images in picture of which projected when on the determinand；
Wherein, at least two projected images in the multiple projected images to be projected are different.
Preferably, the 6th period was more than for the 9th period, the tenth period was more than for the 7th period, this
The sum of nine periods and the tenth period be less than twice of the 6th period, the 7th period, the 8th period it
With.
The third aspect, the present invention provide a kind of scanning means, which includes：First storage unit, projecting cell,
Image acquisition unit, the second storage unit, projection process unit and image sensing processing unit；First storage unit is used for
Store the multiple projected images to be projected；The projecting cell is used to project the first projection in the multiple projected images to be projected
Image is to determinand；The image acquisition unit is used to shoot the determinand；Second storage unit shoots picture for storing first
Face；The projection process unit couples first storage unit and the projecting cell, and the projection process unit is for reception first
Trigger signal judges, from first trigger signal is received after first time period, to control the projecting cell in the second time
Section is projected in first projected image to the determinand in the multiple projected images to be projected, and projects first projection
The second trigger signal is sent out before image or when projecting first projected image, has judged the multiple projected images to be projected
Image reset signal is sent out during projection；The image sensing processing unit couple the projection process unit, the image acquisition unit with
And second storage unit, the image sensing processing unit connect for sending out first trigger signal to the projection process unit
Second trigger signal is received, judges, from second trigger signal is received after the third period, to control the image capture list
Member shoots the determinand to obtain the first shooting picture in the 4th period, and stores first shooting picture to second storage
Unit sends out first trigger signal, after receiving the image reset signal, according to this again after obtaining first shooting picture
The number that image reset signal and the image acquisition unit shoot the determinand determines that each first shooting picture is by this
Picture of which projected when on the determinand in the multiple projected images to be projected；Wherein, this is intended to project
Multiple projected images at least two projected images it is different.
Preferably, the second time period was more than for the 4th period.
Preferably, the scanning means is mouth cavity scanner.
Fourth aspect, the present invention provide a kind of scanning means, which includes：Third storage unit, projecting cell,
Image acquisition unit, the 4th storage unit, projection process unit and image sensing processing unit；The third storage unit is used for
Store the multiple projected images to be projected；The projecting cell is used to project the second projection in the multiple projected images to be projected
Image is to determinand；The image acquisition unit is used to shoot the determinand；4th storage unit shoots picture for storing second
Face；The image sensing processing unit couples the image acquisition unit and the 4th storage unit, the image sensing processing unit
For sending out third trigger signal, judge, from the third trigger signal is sent out after the 6th period, to control the image capture
Unit shoots determinand in the 7th period and is deposited with obtaining second shooting picture and storing second shooting picture to the 4th
Storage unit judges, from second shooting picture is obtained after the 8th period, to send out the third trigger signal again, receive
After image reset signal, according to the image reset signal and the image acquisition unit shoot the determinand number determine it is each
Second shooting picture be by which projected in the multiple projected images to be projected when on the determinand
Picture；The projection process unit couples the image sensing processing unit, the third storage unit and the projecting cell, the throwing
For shadow processing unit for receiving the third trigger signal, judgement receives the third trigger signal after the 9th period certainly,
The projecting cell is controlled to project second projected image in the multiple projected images to be projected in the tenth period to treat to this
It surveys on object, when the projection process unit judges multiple projected images to be projected have projected, sends out image resetting letter
Number to the image sensing processing unit；Wherein, at least two projected images in the multiple projected images to be projected are different.
Preferably, the scanning means is mouth cavity scanner.
Compared with prior art, scan control method and scanning means provided by the invention, multiple projected pictures of projection
Whole is not identical and can be arbitrary black and white or the image with grayscale, since the image of projection can be converted arbitrarily and can be
The image that grating can not be realized so that it is subtleer various for the difference data of 3D operations, accordingly, with respect to the fixed image of projection
The 3D models of structure, accuracy higher.
Description of the drawings
Fig. 1 is the flow diagram of a kind of scan control method that one embodiment of the invention provides；
Fig. 2 is the time diagram of scan control method shown in FIG. 1；
Fig. 3 is the flow diagram of a kind of scan control method that another embodiment of the present invention provides；
Fig. 4 is the flow diagram of a kind of scan control method that another embodiment of the present invention provides；
Fig. 5 is the time diagram of scan control method shown in Fig. 4；
Fig. 6 is the structure diagram of a kind of scanning means that one embodiment of the invention provides；
Fig. 7 is the structure diagram of a kind of scanning means that another embodiment of the present invention provides.
Specific embodiment
To make have further understanding to the purpose of the present invention, construction, feature and its function, hereby coordinate embodiment detailed
It is described as follows.
Fig. 1 is the flow diagram of a kind of scan control method that one embodiment of the invention provides；Fig. 2 is shown in FIG. 1
The time diagram of scan control method.As shown in Figure 1 and Figure 2, scan control method is used for scanning means, and scanning means can be with
For mouth cavity scanner, which includes image sensing processing unit, image acquisition unit, projection process unit and projection
Unit, the scan control method include：
Step S101, image sensing processing unit sends out the first trigger signal X1 to projection process unit.
Step S102, projection process unit receives the first trigger signal X1, judges to receive the first trigger signal X1 warps certainly
After crossing first time period T1, first in the projecting cell multiple projected images to be projected in second time period T2 is controlled to throw
On shadow image to determinand, and the second trigger signal is sent out before the first projected image is projected or when projecting the first projected image
X2 is to image sensing processing unit.Send out the second triggering letter in Fig. 2 before the first projected image is projected with projection process unit
For number X2.
Step S103, image sensing processing unit receives the second trigger signal X2, judges to receive the second trigger signal certainly
For X2 after third period T3, control image acquisition unit shoots determinand to obtain the first shooting picture in the 4th period T4
Face.
Step S104, image sensing processing unit returns to the above-mentioned first trigger signal X1 that sends out to the step of projection process unit
Suddenly, and projection process unit repeat above-mentioned reception the first trigger signal X1 and later the step of, until projection process unit judges
When the multiple projected images to be projected have projected, it is single to image sensing processing that projection process unit sends out image reset signal Y
Member.
Step S105, after image sensing processing unit receives image reset signal Y, image sensing processing unit is according to figure
As reset signal Y and the number of image acquisition unit shooting determinand, determine that each first shooting picture is projected by being intended to
Picture of which projected when on determinand in multiple projected images.
Wherein, at least two projected images in the multiple projected images to be projected are different.Second time period T2 is more than the
Four period T4 (i.e. T2>T4), with ensure image acquisition unit shooting picture it is effective.Image acquisition unit is thrown in projecting cell
Determinand is shot when penetrating projected image can obtain effective shooting picture, therefore, image acquisition unit shooting determinand
The second time period T2 that 4th period T4 should project projected image with projecting cell is least partially overlapped, preferably, image
4th period T4 of acquisition unit shooting determinand is within the second time period T2 of projecting cell projection projected image.
As shown in Fig. 2, the multiple projected images to be projected include：At least two phases in P1, P2 ... Pn, P1, P2 ... Pn
It is different, preferably, P1, P2 ... Pn are all different, after image sensing processing unit receives image reset signal Y, it may be determined that
The number of determinand is shot before image reset signal Y, can be determined in multiple shooting pictures according to the number of shooting determinand
Each shooting picture respectively with which is corresponding in multiple projected image P1, P2 ... Pn.
Illustratively, image sensing processing unit sends out the first trigger signal X1 to projection process unit, projection process list
Member receives the first trigger signal X1, judges that control projection is single from the first trigger signal X1 is received after first time period T1
Member before projected image P1 project or projects projected image on second time period T2 projections projected image P1 to determinand
The second trigger signal X2 is sent out during P1 to image sensing processing unit, image sensing processing unit receives the second trigger signal X2,
Judge that control image acquisition unit is clapped in the 4th period T4 from the second trigger signal X2 is received after third period T3
Determinand is taken the photograph to obtain shooting picture B1；Image sensing processing unit sends out the first trigger signal X1 to projection process unit, throws
Shadow processing unit receives the first trigger signal X1, judges, from the first trigger signal X1 is received after first time period T1, to control
Projecting cell processed is projected in second time period T2 on projected image P2 to determinand, and before projected image P2 is projected or is projected
The second trigger signal X2 is sent out during projected image P2 to image sensing processing unit, image sensing processing unit receives the second triggering
Signal X2 judges that control image acquisition unit is when the 4th from the second trigger signal X2 is received after third period T3
Between section T4 shooting determinands to obtain shooting picture B2；Image sensing processing unit sends out the first trigger signal X1 to projection process
Unit, projection process unit receive the first trigger signal X1, judge from the first trigger signal X1 is received by first time period
After T1, control projecting cell on second time period T2 projections projected image P3 to determinand, and projection projected image P3 it
The second trigger signal X2 is sent out during preceding or projection projected image P3 to image sensing processing unit, image sensing processing unit receives
Second trigger signal X2 judges, from the second trigger signal X2 is received after third period T3, to control image acquisition unit
Determinand is shot in the 4th period T4 to obtain shooting picture B3；Cycle performs ... until projection process unit judges are intended to throw
When multiple projected images of shadow have projected, projection process unit sends out image reset signal Y to image sensing processing unit, shadow
After receiving image reset signal Y as sense process unit, image sensing processing unit is according to image reset signal Y and image
Acquisition unit shoots the number of determinand, and which in the multiple projected images to be projected determines each first shooting picture is by
Picture of a projected when on determinand.Assuming that the number of image acquisition unit shooting determinand is 5 times, image sense
Shooting can be determined according to image reset signal Y and the number (5 times) of image acquisition unit shooting determinand by surveying processing unit
Picture B1 is picture, the shooting picture when first projected image (i.e. projected image P1) in projected image is projeced on determinand
Face B2 is picture when second projected image (i.e. projected image P2) in projected image is projeced on determinand, shooting picture
B3 is picture, the shooting picture B4 when third projected image (i.e. projected image P3) in projected image is projeced on determinand
It is that picture, shooting picture B5 when the 4th projected image (i.e. projected image P4) in projected image is projeced on determinand is
Picture when the 5th projected image (i.e. projected image P5) in projected image is projeced on determinand.
Preferably, image sensing processing unit judges, from the first shooting picture is obtained after the 5th period T5, to return
Step S101.
Projection process unit also needs to judge whether the multiple projected images to be projected have projected, and projection process unit is sentenced
The step of whether disconnected multiple projected images to be projected have projected, can before the first trigger signal X1 is received, alternatively,
When before projecting the first projected image or projecting the first projected image, alternatively, projecting the first projected image second time period T2
During completion or after the completion；In Fig. 2 with project the first projected image second time period T2 after, projection process unit judges to be projected
Whether multiple projected images have projected.Fig. 3 is the flow of a kind of scan control method that another embodiment of the present invention provides
Pictorial examples.As shown in figure 3, before the first trigger signal X1 is received, the multiple projections to be projected of projection process unit judges
Whether image has projected, which includes：
Step S301, image sensing processing unit sends out the first trigger signal X1 to projection process unit.
Step S302, whether the projection process unit judges multiple projected images to be projected have projected.If it is not, perform step
Rapid S303；If so, perform step S305.
Step S303, if the projection process unit judges multiple projected images to be projected have not projected, projection process list
Member receives the first trigger signal X1, judges that control projection is single from the first trigger signal X1 is received after first time period T1
In the first projected image to determinand in first second time period T2 multiple projected images to be projected, and in projection first
The second trigger signal X2 is sent out to image sensing processing unit before projected image or when projecting the first projected image.Wherein, it is intended to
At least two projected images in multiple projected images of projection are different, and second time period T2 is more than the 4th period T4 (i.e. T2>
T4)。
Step S304, image sensing processing unit receives the second trigger signal X2, judges to receive the second trigger signal certainly
X2 controls the image acquisition unit to shoot determinand in the 4th period T4 to obtain the first shooting after third period T3
Picture, and after the first shooting picture is obtained, return to above-mentioned steps S301.
Step S305, if the projection process unit judges multiple projected images to be projected have projected, projection process unit
Image reset signal Y is sent out to image sensing processing unit.
Step S306, after image sensing processing unit receives image reset signal Y, according to image reset signal Y and
The number of image acquisition unit shooting determinand determines that each first shooting picture is by the multiple projected images to be projected
Picture of which projected when on determinand.
Preferably, image sensing processing unit judges, from the first shooting picture is obtained after the 5th period T5, to return
Above-mentioned steps S301.
Scan control method provided by the invention, multiple projected pictures of projection are not all identical and can be arbitrary black and white
Or the image with grayscale, since the image of projection can be converted arbitrarily and can be the image that grating can not be realized so that can
It is subtleer various for the difference data of 3D operations, accordingly, with respect to the 3D models of the fixed picture construction of projection, accuracy higher.
Fig. 4 is a kind of scan control method that another embodiment of the present invention provides；Fig. 5 is scan control side shown in Fig. 4
The time diagram of method.As shown in Figure 4, Figure 5, scan control method is used for scanning means, and scanning means can be that oral cavity is scanned
Instrument, the scanning means include image sensing processing unit, image acquisition unit, projection process unit and projecting cell, this is swept
Control method is retouched to include：
Step S401, image sensing processing unit sends out third trigger signal X3 to projection process unit.
Step S402, after projection process unit receives third trigger signal X3, judge to receive third trigger signal X3 certainly
After the 9th period T9, the in the projecting cell multiple projected images to be projected in the tenth period T10 is controlled
In two projected images to determinand.
Step S403, image sensing processing unit judges to send out third trigger signal X3 after the 6th period T6 certainly,
Control image acquisition unit shoots determinand to obtain the second shooting picture in the 7th period T7.
Step S404, image sensing processing unit judges, from the second shooting picture is obtained after the 8th period T8, to return
Return above-mentioned steps S401, and projection process unit return above-mentioned reception third trigger signal X3 and later the step of, until projection
When processing unit judges that the multiple projected images to be projected have projected, projection process unit sends out image reset signal Y to shadow
As sense process unit.
Step S405, image sensing processing unit receives image reset signal Y, and image sensing processing unit is according to image
The number of reset signal Y and image acquisition unit shooting determinand, it is more by what is projected to determine each second shooting picture
Picture of which projected when on determinand in a projected image.
Wherein, at least two projected images in the multiple projected images to be projected are different.
Image acquisition unit shooting determinand when projecting cell projects projected image can obtain effective shooting picture
Face, therefore, the 7th period T7 of image acquisition unit shooting determinand should project the tenth of projected image with projecting cell
Period, T10 was least partially overlapped, preferably, the 7th period T7 of image acquisition unit shooting determinand is thrown in projecting cell
It penetrates within the tenth period T10 of projected image.Preferably, the 6th period T6 is more than the 9th period T9, the tenth period
T10 is more than the 7th period T7, the sum of the 9th period T9 and the tenth period T10 be less than 2 times of the 6th period T6, the 7th
The sum of period T7, the 8th period T8 are (that is, T6>T9, T10>T7,T9+T10<2T6+T7+T8), to ensure image capture list
The picture of member shooting is effective.
As shown in figure 5, the multiple projected images to be projected include：At least two phases in P1, P2 ... Pn, P1, P2 ... Pn
It is different, preferably, P1, P2 ... Pn are all different, after image sensing processing unit receives image reset signal Y, it may be determined that
The number of determinand is shot before image reset signal Y, can be determined in multiple shooting pictures according to the number of shooting determinand
Each shooting picture respectively with which is corresponding in multiple projected image P1, P2 ... Pn.
Illustratively, image sensing processing unit sends out third trigger signal X3 to projection process unit, projection process list
After member receives third trigger signal X3, judge, from third trigger signal X3 is received after the 9th period T9, to control projection
For unit on the tenth period T10 projection projected images P1 to determinand, image sensing processing unit judges that sending out third certainly touches
For signalling X3 after the 6th period T6, control image acquisition unit shoots determinand to be shot in the 7th period T7
Screen D 1；Image sensing processing unit judges that image sensing processing is single from shooting picture D1 is obtained after the 8th period T8
Member sends out third trigger signal X3 to projection process unit, after projection process unit receives third trigger signal X3, judges to connect certainly
Third trigger signal X3 is received after the 9th period T9, control projecting cell projects projected image in the tenth period T10
On P2 to determinand, image sensing processing unit judges, from third trigger signal X3 is sent out after the 6th period T6, to control
Image acquisition unit shoots determinand to obtain shooting picture D2 in the 7th period T7；Image sensing processing unit judges to obtain certainly
Shooting picture D2 is obtained after the 8th period T8, image sensing processing unit sends out third trigger signal X3 to projection process list
Member after projection process unit receives third trigger signal X3, is judged from third trigger signal X3 is received by the 9th period
After T9, on the tenth period T10 projection projected images P3 to determinand, image sensing processing unit judges control projecting cell
From third trigger signal X3 is sent out after the 6th period T6, control image acquisition unit shoots to be measured in the 7th period T7
Object is to obtain shooting picture D3；Image sensing processing unit judges to obtain shooting picture D3 certainly after the 8th period T8, shadow
As sense process unit sends out third trigger signal X3 to projection process unit ..., cycle execution, until projection process unit
When judging that the multiple projected images to be projected have projected, projection process unit is sent out at image reset signal Y to image sensing
Unit is managed, image sensing processing unit receives image reset signal Y, and image sensing processing unit is according to image reset signal Y
And the number of image acquisition unit shooting determinand, it is by the multiple projected images to be projected to determine each second shooting picture
In picture of which projected when on determinand.Assuming that the number of image acquisition unit shooting determinand is 4
Secondary, image sensing processing unit can be according to image reset signal Y and the number (4 of image acquisition unit shooting determinand
It is secondary), when to determine shooting picture D1 be that first projected image (i.e. projected image P1) in projected image is projeced on determinand
Picture, shooting picture D2 is when being that second projected image (i.e. projected image P2) in projected image is projeced on determinand
Picture, shooting picture D3 are pictures when third projected image (i.e. projected image P3) in projected image is projeced on determinand
Face, shooting picture D4 are pictures when the 4th projected image (i.e. projected image P4) in projected image is projeced on determinand
Face.
Scan control method provided by the invention, multiple projected pictures of projection are not all identical and can be arbitrary black and white
Or the image with grayscale, since the image of projection can be converted arbitrarily and can be the image that grating can not be realized so that can
It is subtleer various for the difference data of 3D operations, accordingly, with respect to the 3D models of the fixed picture construction of projection, accuracy higher.
Fig. 6 is the structure diagram of a kind of scanning means that one embodiment of the invention provides.As shown in fig. 6, scanning means 1
For the method shown in Fig. 1-Fig. 3 embodiments.Scanning means 1 includes：First storage unit 11, projecting cell 12, image capture
Unit 13, the second storage unit 14, projection process unit 15 and image sensing processing unit 16.First storage unit 11 is used for
Store the multiple projected images to be projected.Projecting cell 12 is used for the first perspective view in the multiple projected images to be projected
As to determinand.Image acquisition unit 13 is used to shoot determinand.Second storage unit 14 is for the first shooting picture of storage.It throws
Shadow processing unit 15 couples the first storage unit 11 and projecting cell 12, and projection process unit 15 is believed for receiving the first triggering
Number X1 judges that projection process unit 15 controls projecting cell from the first trigger signal X1 is received after first time period T1
In the first projected image to determinand in the 12 multiple projected images to be projected in second time period T2, and in projection the
The second trigger signal X2 is sent out before one projected image or when projecting the first projected image, projection process unit 15 is additionally operable to judge
Whether the multiple projected images to be projected have projected, and when judging that the multiple projected images to be projected have projected, send out
Image reset signal Y.Image sensing processing unit 16 couples projection process unit 15, image acquisition unit 13 and second stores
Unit 14, image sensing processing unit 16 receive the second trigger signal X2, image sense for sending out the first trigger signal X1
Processing unit 16 is surveyed to judge from receiving the second trigger signal X2 after third period T3, control image acquisition unit 13 in
4th period T4 shoots determinand to obtain the first shooting picture, and stores the first shooting picture to the second storage unit 14,
The first trigger signal X1 is sent out again after obtaining the first shooting picture；It influences sense process unit 16 and receives image reset signal
After Y, the number that determinand is shot according to image reset signal Y and image acquisition unit 13 determines that each first shooting picture is
By picture of which projected in the multiple projected images to be projected when on determinand.Wherein, it to be projected
At least two projected images in multiple projected images are different.
Further, second time period T2 is more than the 4th period T4, to ensure that the picture that image acquisition unit 13 is shot has
Effect.The shooting determinand when projecting cell 12 projects projected image of image acquisition unit 13 can obtain effective shooting picture
Face, therefore, the 4th period T4 that image acquisition unit 13 shoots determinand should project projected image with projecting cell 12
Second time period T2 is least partially overlapped, preferably, the 4th period T4 that image acquisition unit 13 shoots determinand is being projected
Unit 12 is projected within the second time period T2 of projected image.
Scanning means 1 can also include the elements such as necessary light source, lens.
Preferably, scanning means 1 can be mouth cavity scanner.
Scanning means provided by the invention, multiple projected pictures of projection it is all not identical and can be arbitrary black and white or
Image with grayscale, since the image of projection can be converted arbitrarily and can be the image that grating can not be realized so that for 3D
The difference data of operation is subtleer various, accordingly, with respect to the 3D models of the fixed picture construction of projection, accuracy higher.
Fig. 7 is a kind of structure diagram of scanning means provided in an embodiment of the present invention.As shown in fig. 7, imaging apparatus 2 is used for
Method shown in Fig. 4-Fig. 5 embodiments, scanning means 2 include：Third storage unit 21, projecting cell 22, image acquisition unit
23rd, the 4th storage unit 24, projection process unit 25 and image sensing processing unit 26.Third storage unit 21 is used to store
The multiple projected images to be projected.Projecting cell 22 be used for the multiple projected images to be projected in the second projected image extremely
Determinand.Image acquisition unit 23 is used to shoot determinand.4th storage unit 24 is for the second shooting picture of storage.Image sense
It surveys processing unit 26 and couples 23 and the 4th storage unit 24 of image acquisition unit, image sensing processing unit 26 is for sending out the
Three trigger signal X3 are judged from sending out third trigger signal X3 after the 6th period T6, control image acquisition unit 23 in
7th period T7 shoots determinand to obtain the second shooting picture and store the second shooting picture to the 4th storage unit 24, shadow
As sense process unit 26 judges, from the second shooting picture is obtained after the 8th period T8, to send out third trigger signal again
X3, after image sensing processing unit 26 receives image reset signal Y, according to image reset signal Y and image acquisition unit
The number of 23 shooting determinands determines each second shooting picture is by which projection in the multiple projected images to be projected
Picture when image is projeced on determinand.Projection process unit 25 couples image sensing processing unit 26, third storage unit
21 and projecting cell 22, projection process unit 25 is judged from receiving third triggering letter for receiving third trigger signal X3
Number X3 is after the 9th period T9, and control projecting cell 22 is in the tenth period T10 multiple projected images to be projected
In the second projected image to determinand on, whether the projection process unit judges multiple projected images to be projected have projected,
And when the projection process unit judges multiple projected images to be projected have projected, projection process unit sends out image resetting letter
Number Y is to image sensing processing unit 26.
Wherein, at least two projected images in the multiple projected images to be projected are different.
The shooting determinand when projecting cell 22 projects projected image of image acquisition unit 23 can obtain effective bat
Picture is taken the photograph, therefore, the 7th period T7 that image acquisition unit 23 shoots determinand should project perspective view with projecting cell 22
Tenth period T10 of picture is least partially overlapped, preferably, the 7th period T7 that image acquisition unit 23 shoots determinand exists
Projecting cell 22 is projected within the tenth period T10 of projected image.Preferably, the 6th period T6 was more than for the 9th period
T9, the tenth period T10 are more than the 7th period T7, and the sum of the 9th period T9 and the tenth period T10 were less than for the 6th time
The sum of section 2 times of T6, the 7th period T7 and the 8th period T8 are (that is, T6>T9, T10>T7,T9+T10<2T6+T7+T8), with
Ensure that the picture that image acquisition unit 23 is shot is effective.
Scanning means 2 can also include the elements such as necessary light source, lens.
Preferably, scanning means can be mouth cavity scanner.
Scanning means provided by the invention, multiple projected pictures of projection it is all not identical and can be arbitrary black and white or
Image with grayscale, since the image of projection can be converted arbitrarily and can be the image that grating can not be realized so that for 3D
The difference data of operation is subtleer various, accordingly, with respect to the 3D models of the fixed picture construction of projection, accuracy higher.
The present invention is described by above-mentioned related embodiment, however above-described embodiment is only the example for implementing the present invention.
It must be noted that the embodiment disclosed is not limiting as the scope of the present invention.On the contrary, do not depart from the present invention spirit and
In the range of made change and retouch, belong to the present invention scope of patent protection.
Claims (10)
1. a kind of scan control method, for scanning means, which is characterized in that it is single that the scanning means includes image sensing processing
Member, image acquisition unit, projection process unit and projecting cell, this method include：
The image sensing processing unit sends out the first trigger signal to the projection process unit；
The projection process unit receives first trigger signal, judges from first trigger signal is received by first time period
Afterwards, the first projected image in the projecting cell multiple projected images to be projected in second time period is controlled to determinand
On, and the second trigger signal is sent out to the image sense before first projected image is projected or when projecting first projected image
Survey processing unit；
The image sensing processing unit receives second trigger signal, judges from when receiving second trigger signal by third
Between after section, the image acquisition unit is controlled to shoot the determinand in the 4th period to obtain the first shooting picture；
The image sensing processing unit returns to above-mentioned the step of sending out first trigger signal to the projection process unit, and the throwing
Shadow processing unit repeat above-mentioned reception first trigger signal and later the step of, until the projection process unit judges this be intended to throw
When multiple projected images of shadow have projected, it is single to image sensing processing which sends out image reset signal
The step of whether member, wherein projection process the unit judges multiple projected images to be projected have projected, can receive this
It either before first projected image is projected or when projecting first projected image or is projected before one trigger signal
When first projected image second time period is completed or after the completion；
After the image sensing processing unit receives the image reset signal, which resets according to the image
Signal and the image acquisition unit shoot the number of the determinand, determine that each first shooting picture is intended to project by this
Picture of which projected when on the determinand in multiple projected images；
Wherein, at least two projected images in the multiple projected images to be projected are different.
2. scan control method as described in claim 1, which is characterized in that the second time period was more than for the 4th period.
3. scan control method as described in claim 1, which is characterized in that the scan control method further includes：The image sense
Processing unit is surveyed to judge, from first shooting picture is obtained after the 5th period, to return to the above-mentioned image sensing processing unit
The step of sending out first trigger signal.
4. a kind of scan control method, for scanning means, which is characterized in that it is single that the scanning means includes image sensing processing
Member, image acquisition unit, projection process unit and projecting cell, this method include：
The image sensing processing unit sends out third trigger signal to the projection process unit；
The projection process unit receives the third trigger signal, judges from the third trigger signal is received by the 9th period
Afterwards, the projecting cell is controlled to project the second projected image in the multiple projected images to be projected in the tenth period to treat to this
It surveys on object；
The image sensing processing unit judges, from the third trigger signal is sent out after the 6th period, to control the image capture
Unit shoots determinand to obtain the second shooting picture in the 7th period；
The image sensing processing unit judges that, from second shooting picture is obtained after the 8th period, return is above-mentioned to send out this
The step of third trigger signal to projection process unit, and the projection process unit return receive the third trigger signal and it
Rear step is until when the projection process unit judges multiple projected images to be projected have projected, the projection process unit
Image reset signal is sent out to the image sensing processing unit, wherein the projection process unit judges multiple projected images to be projected
The step of whether having projected, can be before first trigger signal is received or before first projected image be projected
Or when projecting first projected image or when projecting the first projected image second time period and completing or after the completion；
After the image sensing processing unit receives the image reset signal, which resets according to the image
Signal and the image acquisition unit shoot the number of the determinand, determine that each second shooting picture is more by what is projected
Picture of which projected when on the determinand in a projected image；
Wherein, at least two projected images in the multiple projected images to be projected are different.
5. scan control method as claimed in claim 4, which is characterized in that the 6th period was more than for the 9th period,
Tenth period was more than for the 7th period, and the sum of the 9th period and the tenth period were less than for the 6th period
Twiceth, the sum of the 7th period, the 8th period.
6. a kind of scanning means, which is characterized in that include：
First storage unit, for storing the multiple projected images to be projected；
Projecting cell, for projecting the first projected image in the multiple projected images to be projected to determinand；
Image acquisition unit, for shooting the determinand；
Second storage unit, for storing the first shooting picture；
Projection process unit couples first storage unit and the projecting cell, and the projection process unit is for reception first
Trigger signal judges, from first trigger signal is received after first time period, to control the projecting cell in the second time
Section is projected in first projected image to the determinand in the multiple projected images to be projected, and projects first projection
The second trigger signal is sent out before image or when projecting first projected image, has judged the multiple projected images to be projected
Image reset signal is sent out during projection；
Image sensing processing unit couples the projection process unit, the image acquisition unit and second storage unit, the shadow
As sense process unit for sending out first trigger signal to the projection process unit, second trigger signal is received, is judged
From second trigger signal is received after the third period, the image acquisition unit is controlled to shoot this in the 4th period and is treated
Object is surveyed to obtain the first shooting picture, and stores first shooting picture to second storage unit, obtains the first shooting picture
First trigger signal is sent out behind face again, after receiving the image reset signal, according to the image reset signal and the shadow
As the number that acquisition unit shoots the determinand determines that each first shooting picture is the multiple projected images to be projected by this
In picture of which projected when on the determinand；
Wherein, at least two projected images in the multiple projected images to be projected are different.
7. scanning means as claimed in claim 6, which is characterized in that the second time period was more than for the 4th period.
8. scanning means as claimed in claim 6, which is characterized in that the scanning means is mouth cavity scanner.
9. a kind of scanning means, which is characterized in that include：
Third storage unit, for storing the multiple projected images to be projected；
Projecting cell, for projecting the second projected image in the multiple projected images to be projected to determinand；
Image acquisition unit, for shooting the determinand；
4th storage unit, for storing the second shooting picture；
Image sensing processing unit couples the image acquisition unit and the 4th storage unit, the image sensing processing unit
For sending out third trigger signal, judge, from the third trigger signal is sent out after the 6th period, to control the image capture
Unit shoots determinand in the 7th period and is deposited with obtaining second shooting picture and storing second shooting picture to the 4th
Storage unit judges, from second shooting picture is obtained after the 8th period, to send out the third trigger signal again, receive
After image reset signal, according to the image reset signal and the image acquisition unit shoot the determinand number determine it is each
Second shooting picture be by which projected in the multiple projected images to be projected when on the determinand
Picture；
Projection process unit, couples the image sensing processing unit, the third storage unit and the projecting cell, at the projection
Reason unit judges, from the third trigger signal is received after the 9th period, to control for receiving the third trigger signal
The projecting cell projects second projected image in the multiple projected images to be projected in the tenth period to the determinand
On, when the projection process unit judges multiple projected images to be projected have projected, send out the image reset signal extremely
The image sensing processing unit；
Wherein, at least two projected images in the multiple projected images to be projected are different.
10. scanning means as claimed in claim 9, which is characterized in that the scanning means is mouth cavity scanner.
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| CN110581951B (en) * | 2019-08-22 | 2021-12-14 | 苏州佳世达光电有限公司 | Mouth cleaner and control method thereof |
| CN116416178A (en) * | 2021-12-27 | 2023-07-11 | 广州镭晨智能装备科技有限公司 | Visual inspection equipment, visual inspection system and visual inspection method for product surface defects |
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