CN103163716B - Three-dimensional photographic device - Google Patents
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- CN103163716B CN103163716B CN201110426581.1A CN201110426581A CN103163716B CN 103163716 B CN103163716 B CN 103163716B CN 201110426581 A CN201110426581 A CN 201110426581A CN 103163716 B CN103163716 B CN 103163716B
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Abstract
The invention provides a three-dimensional photographic device. The three-dimensional photographic device comprises two camera modules and a processor, wherein each camera module comprises a camera lens unit and an image sensor, the camera lens unit utilizes a shape memory alloy element as a variable focal length actuator, and the image sensor is used for forming images with at least two colors. The processor comprises a full width focusing module, a focusing driving module and an image synthesis module, the full width focusing module is used for judging an object distance according to acutance of colors, judging whether the object distance is larger than a certain preset distance or not, when the object distance is larger than the preset distance, the images are conducted sharpening processing and the images become distinct, otherwise a control signal is sent to the focusing driving module, the camera modules are driven to change a focal distance to directly acquire distinct images after the focusing driving module receives the control signal, and the image synthesis module is used for utilizing the distinct images to synthesize three-dimension images. The three-dimensional photographic device utilizes a full width focusing technology, and therefore the distinct images can be further acquired in a close distance.
Description
Technical field
The present invention relates to a kind of stereo photographic device.
Background technology
At present, full width focusing technology（WDF, Width Depth Field）It is applied in digital vedio recording photography, its
The image of the object that numerical camera mould is shot is decomposed into different colors, such as RGB three primary colories, corresponding to object distance, different
Color there are different acutances, the full width focusing choice of technology goes out the color in image with optimal acutance, and accordingly
The acutance of good acutance other colors of correction, to lift the definition of overall image.Do not need camera mould using full width focusing technology
The physics focus process of group, thus clearly image can quickly be obtained.
However, when object distance is too small, e.g., less than 40 centimetres（cm）When, now the acutance of all colours is all poor and is not inconsistent
Close requirement, even if full width focusing technology is corrected to image, the image of acquisition is also ambiguous.
Content of the invention
In view of this it is necessary to provide a kind of stereo photographic device, it also can obtain clearly image when closely.
Described stereo photographic device, including two camera modules and a processor.This lens unit include lens barrel, eyeglass,
Load bearing seat, fixed seat, shape memory alloy component and flexible member, resistance and power supply chip.This load bearing seat carries this eyeglass,
This shape memory alloy component connects this load bearing seat and this fixed seat, and this flexible member connects this load bearing seat and this fixed seat, should
Load bearing seat is movably arranged in this lens barrel, and this fixed seat is fixed in this lens barrel, this shape memory alloy component and this resistance heat
Coupling, this resistance is electrically connected with this power supply chip, and this CIS is used for accepting the light coming from this lens unit simultaneously
Form image, this image includes at least two colors.This processor includes full width Focusing module, focusing driving module and image and closes
Become module.This full width Focusing module is used for judging object distance according to the acutance of one of this at least two color color, and judges
Whether this object distance is more than a certain preset distance, and when this object distance is more than this preset distance, this full width Focusing module is to two images
Two images that sensor is formed do Edge contrast to obtain two the first pictures rich in detail.When this object distance is not more than this preset distance
When, this full width Focusing module sends control signal to this focusing driving module, and this focusing driving module is driven according to this control signal
The length that this power supply chip dynamic heats this resistance to change this shape memory alloy component makes this two cameras with this eyeglass mobile
The focal length of module changes, so that this two CISs form two the second pictures rich in detail.This Image compounding module is used for
Receive this two first pictures rich in detail or this two the second pictures rich in detail and stood using this two the first picture rich in detail synthesis first
Body image or using this two second pictures rich in detail synthesize the second stereo-pictures.
Because when object distance is less than preset distance, focusing driving module drives camera module to carry out auto-focusing, so when
Can get a distinct image.
Brief description
Fig. 1 is the structured flowchart of the stereo photographic device of the present invention one preferred implementation.
Fig. 2 is the structured flowchart that Fig. 1 neutral body camera head is connected with a stereoscopic television.
Fig. 3 is the schematic perspective view of the camera module of Fig. 1 neutral body camera head.
Fig. 4 is the IV-IV of Fig. 3 to sectional view.
Fig. 5 is the explosive view removing lens unit of Fig. 3.
Specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Refer to Fig. 1, there is disclosed the stereo photographic device 10 of the present invention one preferred implementation.In present embodiment
In, this stereo photographic device 10 is mobile phone.This stereo photographic device 10 includes a two camera modules 21,22, processor 30,
Display screen 40 and an output port 50.
This two camera module 21,22 is used for shooting the image of the different angles of same object, and delivers in processor 30,
Stereoscopic image is synthesized by processor 30.For ensureing the effect of stereoscopic shooting, the centre-to-centre spacing between this two camera module 21,22
（I.e. the distance between optical axis of two camera modules）Scope be 25～40 millimeters（mm）, preferably 32.5 millimeters（mm）.Due to
Stereo camera shooting technology is known to those skilled in the art, here and below, to the related content of stereo camera shooting not
It is described in detail.
This processor 30 respectively with this camera module 21,22, display screen 40, output port 50 be connected.Wherein, processor 30
With camera module 21,22 connect through mobile Industry Processor Interface（Mobile Industry Processor
Interface, MIPI）.
This processor 30 includes a full width Focusing module 31, a focusing driving module 32 and an Image compounding module 33.
Full width Focusing module 31 is used for receiving the image of camera module 21,22 transmission.Due to general numerical camera mould
Sensor possesses the element differentiating different colours light, therefore, has different colors from the image of camera module 21,22 transmission,
And the light homologue of a certain color is away from having specific acutance, therefore, the acutance of certain color in analysis of the image, can obtain
Know object distance d, that is, object is to the distance of camera module 21,22.Full width Focusing module 31 judges object distance according to above-mentioned principle first
D, full width Focusing module 31 can judge object distance according to the image of arbitrary camera module 21,22 transmission, also dependent on two camera modules
21st, the image of 22 transmission judges object distance respectively and calculates meansigma methodss, and due to two camera module 21,22 shooting is same object
Image, according to the difference very little between the value that above-mentioned different judgment mode is obtained.Full width Focusing module 31 simultaneously judges object distance d
Whether it is more than a certain preset distance D, if object distance d is more than preset distance D, full width Focusing module 31 is to focusing driving module 32
Send the first control signal, and it is first clear to obtain two that respectively the image of camera module 21,22 transmission is done with Edge contrast
Then this two first pictures rich in detail are sent to Image compounding module 33 by image, by Image compounding module 33 by this two
One picture rich in detail synthesizes the first stereo-picture.In the present embodiment, described preset distance D is 40 centimetres（cm）, judge thing
Away from d when, full width Focusing module 31 does not analyze entire image, but predetermined block in analysis of the image, for example, be located at image central authorities
The block with predefined size, the size that this predetermined block accounts for entire image can be 1/3rd.
In Edge contrast, full width Focusing module 31 divides the image into multiple blocks, and each block is sharpened respectively
Process, specific processing method is referred on March 6th, 2006 to Patent Office of the People's Republic of China's proposition, Application No.
200680012390.8, entitled《Using color digital picture to the action method that for example acutance modification is controlled》Patent Shen
Please.
When object distance d is not more than preset distance D, full width Focusing module 31 sends second to focusing driving module 32 and controls letter
Number, focusing driving module 32 according to this second control signal, drives camera module 21,22 to carry out physics focusing so that this two
The CIS of individual camera module 21,22 forms two the second pictures rich in detail, and the detailed process of this physics focusing will below
It is described by.
In the present embodiment, when object distance d is not more than preset distance D, this two second pictures rich in detail are without full width
The Edge contrast of Focusing module 31, but directly the second stereo-picture is synthesized by Image compounding module 33；In other embodiment party
In formula, when object distance d is not more than preset distance D, this two second pictures rich in detail may also pass through at full width Focusing module 31 sharpening
Again the second stereo-picture is synthesized by Image compounding module 33 after reason.
After Image compounding module 33 synthesizes the first or second stereo-picture, the first or second stereo-picture is delivered to display screen
40 are shown, and the first or second stereo-picture are delivered to output port 50 simultaneously, by this output port 50, this first or
Second stereo-picture can be sent to and be shown on stereoscopic image display electronics assemblies.In the present embodiment, this output port
50 is high-definition multimedia port（High Definition Multimedia Interface, HDMI）.This stereoscopic image
Display electronics assemblies are the electronic installation with body image display capabilities, such as TV, mobile phone, notebook, display etc..
Refer to Fig. 2, there is disclosed and the first or second stereo-picture is transferred to by stereoscopic image by output port 50 shows
Show that electronic installation is shown.In the present embodiment, this holographic display device is a stereoscopic television 60, this stereoscopic television
60 include a mainboard 61, time schedule controller 63 and a display screen 65.It is defeated with what output port 50 was connected that this mainboard 61 includes one
Inbound port 62, in the present embodiment, this input port 62 is HDMI port, and this time schedule controller 63 includes a synchronizing signal and sends out
Penetrate unit 64.Mainboard 61 receive from input port 62 input picture signal, by picture signal decompose into left-eye image signal and
Eye image signal, and left-eye image signal and eye image signal are delivered to time schedule controller 63.Time schedule controller 63 is by a left side
Eye picture signal and eye image signal timesharing are delivered to display screen 65 and are shown.Time schedule controller 63 is launched by synchronizing signal simultaneously
Unit 64 launches the liquid crystal glasses that synchronizing signal is worn to user（Not shown）, to ensure when left-eye image signal is in display screen 65
During display, the right eye eyeglass of liquid crystal glasses is closed, and user can only watch the image of display on display screen 65 by left eye, otherwise
As the same, user, by seeing different images in left eye and right eye, forms the image of solid in brain.
Refer to Fig. 3 to Fig. 5, there is disclosed the structure of camera module 21,22.In the present embodiment, there is disclosed phase
The structure of machine module 21, the structure of camera module 22 is identical with the structure of camera module 21.
Camera module 21 include image stabilization unit 100, lens unit 200 and be fixed on circuit substrate 500 and with electricity
The CIS 510 that base board 500 is electrically connected with.CIS 510 is just right with lens unit 200, passes through for sensing
The light of lens unit 200, to obtain image, at least includes two kinds of colors in the image of this acquisition.
Image stabilization unit 100 includes a movable frame 120, and lens unit 200 is contained in movable frame 120.In this reality
Apply in mode, because camera module 21 also has optical anti-vibration function simultaneously, so camera module 21 includes this image stabilization
Unit 100, in other embodiments, when not needing optical anti-vibration function, this image stabilization unit 100 can also omit,
Now lens unit 200 is directly fixed on this circuit substrate 500.The concrete structure of image stabilization unit 100 will be situated between below
Continue.
This lens unit 200 includes lens barrel 210 and is contained in eyeglass in lens barrel 210 and drives subelement 220, the first eyeglass
230 and retaining piece 240.
Retaining piece 240 is toroidal, and radial depressions form fluted 241.First eyeglass 230 is glued by dispensing mode
It is embedded in groove 241, retaining piece 240 is fixed on lens barrel 210 inwall by dispensing mode gluing.
This eyeglass drives subelement 220 to include the second eyeglass 231, load bearing seat 242 and load bearing seat 242 and is relatively fixed seat
244th, resistance 221, spring 222, shape memory alloy component 223（Shape memory alloys component, letter below
Claim SMA element）With power supply chip 224.
Load bearing seat 242 is toroidal, and its external diameter is less than the internal diameter of lens barrel 210 so that it is movably arranged as lens barrel 210
Interior.Load bearing seat 242 radial depressions form fluted 243, and the second eyeglass 231 is embedded in groove 243 by dispensing mode gluing.
Guide hole 247 is formed with load bearing seat 242.Fixed seat 244 is toroidal, and it is fixed on lens barrel by dispensing mode gluing
On 210 inwalls.Fixed seat 244 protrudes above and is formed with guide posts 246, and guide posts 246 stretch into guide hole 247.Load bearing seat 242 with
There is between fixed seat 244 space stretched for spring 222 and SMA element 223.
Resistance 221 is hollow structure, and it is fixed in load bearing seat 242 and is connected with power supply chip 224（Not shown）.SMA
One end of element 223 is fixed on load bearing seat 242 through resistance 221, and the other end is fixed in fixed seat 244.The one of spring 222
End is fixed on load bearing seat 242, and the other end is fixed in fixed seat 244.Original state（Room temperature）When, spring 222 is because bearing
Carry the pressure of seat 242 and slightly compress, SMA element 223 is elongated condition, now, the first eyeglass 230 and the second eyeglass 231 it
Combination has the first focal length.
Before SMA element 223 is fixing, SMA element 223 is trained make it carry out certain plastic deformation first
（It is elongated under room temperature）, so when being heated to uniform temperature to SMA element 223, SMA element 223 can return to original form
（Parent phase）, i.e. natural length；When temperature is reduced to room temperature, SMA element 223 can return to shape during room temperature, that is, elongate shape
State, the object being connected with SMA element 223 is subject to the effect of power.
Please also refer to Fig. 1, when focusing driving module 32 is connected to the second control signal of full width Focusing module 31 transmission,
Focusing driving module 32 driving power supply chip 224 is energized to resistance 221, and the resistance 221 of energising produces heat, and resistance 221 produces
Heat the temperature of SMA element 223 can be made to raise, when temperature reaches the deformation temperature of SMA element 223, SMA element 223 is extensive
Arrive natural length again, load bearing seat 242 will be pulled to drive the second eyeglass 231 to move near the direction of fixed seat 244, spring
222 are compressed, in the case of the elastic force of the spring 222 that load bearing seat 242 is subject to the tension balanced of SMA element 223, load bearing seat
242 remain stationary as, and now, the first eyeglass 230 has the second focal length with combining of the second eyeglass 231, so that this two cameras
The CIS of module 21,22 forms two the second pictures rich in detail.
When focusing driving module 32 is connected to the first control signal of full width Focusing module 31 transmission, focusing driving module 32
Driving power supply chip 224 stops resistance 221 is energized, and the temperature of SMA element 223 reduces, and SMA element 223 returns to elongation shape
State, load bearing seat 242 in the presence of the elastic force of spring 222 away from fixed seat 244 so that the second eyeglass 231 is to away from solid
The direction of reservation 244 is moved.
Performance that load bearing seat 242 and the second eyeglass 231 change by SMA element 223 temperature change shape simultaneously combines
The effect of spring 222 is subjected to displacement, so that eyeglass drives, the structure of subelement 220 is simple, small volume.Meanwhile, load bearing seat
242 and fixed seat 244 on guide hole 247 and guide posts 246 play the effect of the stable movement making load bearing seat 242.
Image stabilization unit 100 includes a fixed mount 110,120,130, two, subelement of driving of above-mentioned movable frame
140, controller 160 of shell fragment and an OPTICAL SENSORS 170.
The substantially rectangular body framework of fixed mount 110, it is fixedly arranged on circuit substrate 500.Movable frame 120 is in substantially hollow
Cuboid shape, it is contained in fixed mount 110.Movable frame 120 includes four sides 122 and is oppositely arranged and connects four respectively
Two end faces 123 of individual side 122.Form the receiving space 124 for receiving fixed lens unit 200 in movable frame 120.End
Face 123 offers the loophole 125 communicating with receiving space 124.This four sides 122 four sides with fixed mount 110 respectively
Wall is spaced and forms four segment distances.
Each shell fragment 140 is in substantially tabular, and it includes movable part 410, from movable part 410 opposite sides side outwards successively
Two fixed parts 412 being symmetrically extended and two kinks 414 connecting movable part 410 and fixed part 412.This movable part 410 has
With end face 123 same shape of this movable frame 120, that is, rectangular, this movable part 410 offers and this end face 123
The through hole 416 of loophole 125 be aligned.Two movable parts 410 of two shell fragments 140 are separately fixed at two ends of movable frame 120
On face 123, move with the motion of movable frame 120.This fixed part 412 is fixed on fixation by the cooperation of hole 412a and pin 142
On frame 110, thus this movable frame 120 is fixed on fixed mount 110.
Driving subelement 130 includes the coil 132 being fixed on fixed mount 110 and is fixed on the Magnet in movable frame 120
Group 134.Coil 132 is oppositely arranged with group of magnets 134.Subelement 130 is driven to pass through coil 132 and the drive of group of magnets 134 generation
Power drive movable frame 120 rotates with respect to fixed mount 110, shakes produced displacement to compensate stereo photographic device 10.
The number of coil 132 is four, its generally rectangular shaped ring-type, and four coils 132 are respectively for the four of movable frame 120
Individual side 122 is fixed on fixed mount 110, and all alives.
The number of group of magnets 134 is four, and four group of magnets 134 correspond to four coils 132 respectively and are fixed on movable frame 120
Four sides 122 on.Each group of magnets 134 includes being spaced on relative one permanent magnet 134a and once permanent magnet 134b.On
Permanent magnet 134a, lower permanent magnet 134b are arranged respectively close to two end faces 123, and belong to the upper permanent magnetism of same group of magnets 134
Ferrum 134a, the magnetic pole of lower permanent magnet 134b are distributed contrary, if that is, the magnetic pole near coil 132 one end for the upper permanent magnet 134a is N
Pole, the magnetic pole being affixed on side 122 one end is S pole, then descend the magnetic pole near coil 132 one end for the permanent magnet to be S pole, be affixed on side
The magnetic pole of 122 one end is N pole.
OPTICAL SENSORS 170 is laser sensor or infrared sensor, and OPTICAL SENSORS 170 is fixed on circuit substrate 500, uses
In the displacement sensing movable frame 120 movement, this displacement is, for example, angular displacement.Specifically, OPTICAL SENSORS 170 and movable frame 120
Edge be correspondingly arranged.So, OPTICAL SENSORS 170 can sense the maximum jitter amount of movable frame 120 movement, judges more accurate
Really.
Controller 160 is all electrically connected with OPTICAL SENSORS 170 and four coils 132.Controller 160 is used for according to light sensing
The amount of jitter that device 170 detects is controlling size of current and direction and group of magnets 134 collective effect by four coils 132
Movable frame 120 is driven to rotate.Specifically, after OPTICAL SENSORS 170 senses the shake of movable frame 120, controller 160 controls can
Moving frame 120 rotates to the opposite direction of jitter direction to carry out jitter compensation so that the amount of jitter that OPTICAL SENSORS 170 senses is changed into
Zero, so that eyeglass be aligned CIS 510.
In addition, those skilled in the art also can do other changes in present invention spirit, certainly, these are according to present invention essence
The change that god is done, all should be included in scope of the present invention.
Claims (10)
1. a kind of stereo photographic device is it is characterised in that include：
Two camera modules, each camera module includes lens unit and CIS, and this lens unit includes lens barrel, mirror
Piece, load bearing seat, fixed seat, shape memory alloy component and flexible member, resistance and power supply chip, this load bearing seat carries this mirror
Piece, this shape memory alloy component connects this load bearing seat and this fixed seat, and this flexible member connects this load bearing seat and this fixed seat,
This load bearing seat is movably arranged in this lens barrel, and this fixed seat is fixed in this lens barrel, this shape memory alloy component and this resistance
Thermal coupling, this resistance is electrically connected with this power supply chip, and this CIS is used for the light accepting to come from this lens unit
And forming image, this image includes at least two colors；And
One processor, this processor includes full width Focusing module, focusing driving module and Image compounding module, this full width focusing mould
Whether block is used for judging object distance according to the acutance of one of this at least two color color, and judge this object distance more than a certain pre-
Set a distance, when this object distance is more than this preset distance, two images that this full width Focusing module is formed to two CISs
Do Edge contrast to obtain two the first pictures rich in detail；When this object distance is not more than this preset distance, this full width Focusing module to
This focusing driving module sends control signal, and this focusing driving module drives this power supply chip to heat this electricity according to this control signal
Resistance makes the focal length of this two camera modules change with the length changing this shape memory alloy component with this eyeglass mobile, so that
This two CISs form two the second pictures rich in detail, and this Image compounding module is used for receiving this two the first pictures rich in detail
This two second pictures rich in detail and using this two first pictures rich in detail synthesize the first stereo-pictures or utilize this two second
Picture rich in detail synthesizes the second stereo-picture, and described preset distance is 40 centimetres.
2. stereo photographic device as claimed in claim 1 it is characterised in that：When this object distance is more than this preset distance, this is complete
Width Focusing module sends another drive signal to this focusing driving module, and this focusing driving module is driven according to this another drive signal
Move this power supply chip to stop heating this resistance.
3. stereo photographic device as claimed in claim 1 it is characterised in that：It has been correspondingly formed on this load bearing seat and this fixed seat
Guide hole and guide posts, this guide posts stretches in this guide hole.
4. stereo photographic device as claimed in claim 1 it is characterised in that：This each camera module also includes image stabilization list
Unit, this image stabilization unit includes fixed mount, movable frame, drives subelement, shell fragment, OPTICAL SENSORS and controller, this movable frame
It is spaced in this fixed mount and with this fixed mount, this lens unit is located in this movable frame and this lens barrel is fixed on this movable frame
Interior；This driving subelement includes being arranged at the element circle of this fixed mount and this element circle relatively is arranged at the Magnet of this movable frame
Group, this driving subelement is used for driving this movable frame with respect to this fixed mount by this element circle and this group of magnets produces driving force
Motion；This this fixed mount of shell fragment elastic connection and this movable frame；This OPTICAL SENSORS is used for sensing the amount of jitter of this movable frame；This control
Device processed is used for controlling this driving subelement to drive this movable frame to tremble to compensate this with respect to the motion of this fixed mount according to this amount of jitter
Momentum.
5. stereo photographic device as claimed in claim 1 it is characterised in that：This preset distance is 40 centimetres.
6. stereo photographic device as claimed in claim 1 it is characterised in that：This stereo photographic device also includes an outfan
Mouth, this first stereo-picture or this second stereo-picture are sent to this output port.
7. stereo photographic device as claimed in claim 6 it is characterised in that：This output port is HDMI port.
8. stereo photographic device as claimed in claim 7 it is characterised in that：This HDMI port is used for showing with a stereoscopic image
Electronic installation connects.
9. stereo photographic device as claimed in claim 1 it is characterised in that：Centre distance model between this two camera modules
Enclose for 25～40 millimeters.
10. stereo photographic device as claimed in claim 9 it is characterised in that：Centre distance between this two camera modules
For 32.5 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110426581.1A CN103163716B (en) | 2011-12-19 | 2011-12-19 | Three-dimensional photographic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110426581.1A CN103163716B (en) | 2011-12-19 | 2011-12-19 | Three-dimensional photographic device |
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| CN103163716A CN103163716A (en) | 2013-06-19 |
| CN103163716B true CN103163716B (en) | 2017-02-22 |
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| CN201110426581.1A Active CN103163716B (en) | 2011-12-19 | 2011-12-19 | Three-dimensional photographic device |
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