CN102340678A - Stereoscopic display device with adjustable field depth and field depth adjusting method - Google Patents

Stereoscopic display device with adjustable field depth and field depth adjusting method Download PDF

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CN102340678A
CN102340678A CN2010102329744A CN201010232974A CN102340678A CN 102340678 A CN102340678 A CN 102340678A CN 2010102329744 A CN2010102329744 A CN 2010102329744A CN 201010232974 A CN201010232974 A CN 201010232974A CN 102340678 A CN102340678 A CN 102340678A
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depth
field
eye view
view
unit
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CN102340678B (en
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杨福军
王凌晨
谢仁礼
刘永新
李中梅
陈涛
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TCL Corp
Shenzhen TCL New Technology Co Ltd
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TCL Corp
Shenzhen TCL New Technology Co Ltd
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Abstract

The invention provides a stereoscopic display device with an adjustable field depth. The device comprises an input unit, a processing unit and an output unit, wherein the input unit is used for receiving a 3D video signal and a field depth control signal which are input from the external; the processing unit is used for receiving the field depth control signal and the 3D video signal and adjusting the field depth of a 3D video according to the field depth control signal; and the output unit is used for outputting adjusted 3D video signal. After the field depth control signal is received by the device, the parallactic error information dx in the field depth control signal is analyzed, a left eye view and a right eye view in the 3D video signal are amplified by utilizing the parallactic error information, the resolution ratio of the amplified views in the horizontal direction exceeds the resolution ratio of a 3D image not divided, different parts of the left eye view and the right eye view are intercepted according to field depth variation information stating whether the field depth is increased or reduced in the field depth control signal and the stereoscopic effect type of the 3D image, and a purpose of adjusting the field depth is achieved.

Description

3 d display device that a kind of depth of field is adjustable and focus depth adjusting method thereof
Technical field
The invention belongs to stereo display technique, relate in particular to adjustable 3 d display device of the depth of field and focus depth adjusting method.
Background technology
Display unit has been gone through from the white and black displays to the colour and has been shown, is shown to the development that present plane shows from sphere.Colour display device rich color, perfection embody the colourful of the world; The plane shows undistorted, can accurately image be presented to the spectator, and these all are the major progress in demonstration field undoubtedly.Yet; Above-mentioned display unit remains two-dimensional display, and what present to the spectator is plane picture, can't make the spectator realize the third dimension of real world; Its this quality factor is: in plane picture; The depth of view information that stereo-picture comprised can't embody, and the spectator can experience the object each several part apart from the distance of human eye and the depth of view information such as position relation between the object each several part when watching real world.
Obtain relief hope in order to satisfy the spectator, can express the 3 d display device of depth of view information, like three-dimensional film, stereoscopic TV, binocular projector etc., snatch development.The image of the 3 d display device normally video camera of the left eye through the anthropomorphic dummy and right eye is taken scene to note from two different angles and is obtained; This image is transferred to 3 d display device through binary channels; The image of the shot by camera of simulating two eyes is play simultaneously; The spectator utilizes vision auxiliary equipments such as polarised light, liquid crystal shutter glasses, red blue glasses or prismatic lens, grating then; Make its right and left eyes see the image of two different angles records respectively, thereby produce three-dimensional visual effect.
Yet, in the middle of the production process, must realize the synchronous focusing of two cameras; Take synchronously, the production technical sophistication, and also Cool Video Clips will be used manual type; Make spectators produce continual and steady third dimension, must be accurate to concrete a certain frame picture, have error that three-dimensional effect is disappeared slightly the montage of two image sequences; Therefore, the post-production of stereopsis is a bothersome effort, costly engineering.
Afterwards, along with the very big raising of computer process ability, the depth of view information that exists in can the plane picture with width of cloth two dimension (2D) extracted, utilize depth of view information that two dimensional image is converted into three-dimensional (3D) image after, show through display terminal.This method is with low cost, is convenient to operation, becomes an important development direction of stereo display.
Be converted into the method for 3D rendering through above-mentioned 2D image; The fixing nonadjustable depth of view information often that obtains; And different people is inconsistent at feeling aspect the three-dimensional perception, and this stereoeffect that just causes the fixing 3D rendering of depth of view information in different human eyes, to be reached is still inequality, can't satisfy the demand that different stereo effects is known the people of degree; Particularly nearest scientific research shows; At least 12% people has problem to a certain degree aspect stereoscopic vision, about 5% people has serious dysopia, causes its three-dimensional perception very difficulty or fully impossible perception; Just need make more that the depth of field of 2D commentaries on classics 3D rendering need be more much bigger than the depth of field of reality, just can make this part people obtain third dimension; Equally, for different scenes and different displaying contents, the needed third dimension of spectator is different; Possibly need stronger third dimension for the scene that has; Then need more weak third dimension for the scene that has, like this, present conversion method also can't satisfy different spectators' different demands.
In addition, different 3 d display devices divides three-dimensional show etc. like bore hole solid, time-division stereo display, light, causes the third dimension of stereo display also maybe be different.
Therefore; Need a kind of 3 d display device, different so that the user can be according to self needs and 3 d display device, the depth of view information of 3D rendering is adjusted; So that different user under the situation of using different display unit, can both obtain good solid impression.
Summary of the invention
The object of the present invention is to provide the method for the adjustable 3 d display device of a kind of depth of field and depth of field adjustment, be intended to solve the problem that the depth of field that exists in the prior art can not be adjusted according to user's request.
The present invention is achieved in that the 3 d display device that a kind of depth of field is adjustable, comprising: input unit, processing unit, output unit.Input unit receives the 3D vision signal and the depth of field control signal of outside input; Processing unit receives depth of field control signal and 3D vision signal, according to the depth of field control signal depth of field of 3D video is adjusted; The adjusted 3D vision signal of the output unit output depth of field.
In this 3 d display device, input unit comprises controller and 3D video input unit, and controller receives depth of field control signal, and 3D video input unit receives the 3D vision signal, and depth of field control signal comprises depth of field change information and depth of field variable quantity.
In this 3 d display device, processing unit comprises MCU, control signal acquiring unit, right and left eyes view acquiring unit, depth of field adjustment unit.The control signal acquiring unit receives the depth of field control information that controller sends, and obtains corresponding depth of field change information and depth of field variable quantity, and obtains amplification coefficient according to depth of field variable quantity; Right and left eyes view acquiring unit obtains left-eye view and right-eye view according to the control of MCU from the 3D vision signal of input, be sent to depth of field adjustment unit; Depth of field adjustment unit receives amplification coefficient, amplifies the right and left eyes view, and under MCU control, according to depth of field change information and depth of field variable quantity, intercepting right and left eyes view.
In this 3 d display device, right and left eyes view acquiring unit comprises sampling unit, main storage, split cells, first memory and second memory.The data of sampling unit intercepting one frame from the 3D vision signal; The data of main memory store sampling unit intercepting; Split cells splits there being the data in the main storage according to the format information in the vision signal, splits out left-eye view and right-eye view; First memory and second memory are stored left-eye view and the right-eye view that splits out respectively.
In this 3 d display device; MCU analyzes to this two field picture; Judge that the right and left eyes view is to show the depression stereoeffect or the form of protrusion stereoeffect and this two field picture, and judge that according to form the right and left eyes view resolution is to reduce by half in the horizontal direction or in vertical direction.
In this 3 d display device, this control signal receiving element comprises: control signal decoding unit and amplification coefficient resolution unit.The control signal decoding unit receives the depth of field control signal of controller input; And under the control of MCU, control signal is decoded; Output is that the parallax dx and the depth of field of the right and left eyes view of unit increases the depth of field change information that still reduces with the pixel, and this parallax dx is the depth of field variable quantity that needs adjustment on the right and left eyes view behind the screen; Reducing by half in the horizontal direction or in vertical direction of the right and left eyes view of amplification coefficient resolution unit according to the parallax dx of input, after splitting generates horizontal amplification coefficient and vertical amplification coefficient.When resolution reduces by half in the horizontal direction by the right and left eyes view that split, the relation of horizontal amplification coefficient kx and vertical amplification coefficient ky and dx and W:
k x = 2 × ( d x W + 1 )
k Y＝1
When resolution reduces by half in the horizontal direction by the right and left eyes view that split, the relation of kx and ky and dx and W:
k x = d x W + 1
k Y＝2
W is the capable pixel count under the full resolution.
In this 3 d display device, this depth of field adjustment unit comprises: image amplifying unit, the 3rd memory and interception unit.The image amplifying unit receives from the amplification coefficient of amplification coefficient resolution unit and comes from first memory and the left-eye view and the right-eye view of second memory storage, and two views are amplified by amplification coefficient; Left-eye view and right-eye view that the 3rd memory stores is amplified through the image amplifying unit; Interception unit is according to the parallax dx of amplification coefficient resolution unit output, and the type of the stereoeffect of depth of field variable quantity and MCU output is to being carried out intercepting in the 3rd memory.Left-eye view after the amplification and right-eye view resolution are (W+dx) * H; When under the three-dimensional condition of protrusion, increasing the depth of field; The intercepting of MCU control interception unit goes out capable new left-eye view, the new right-eye view of the capable composition of the preceding W row H of right-eye view formed of back W row H of left-eye view; Increase the depth of field at present in the three-dimensional condition of depression, the intercepting of MCU control interception unit goes out capable new left-eye view, the new right-eye view of the capable composition of the back W row H of right-eye view formed of preceding W row H of left-eye view; When under the three-dimensional condition of depression, reducing the depth of field, the intercepting of MCU control interception unit goes out capable new left-eye view, the new right-eye view of the capable composition of the preceding W row H of right-eye view formed of back W row H of left-eye view; When under the three-dimensional condition of protrusion, reducing the depth of field, the intercepting of MCU control interception unit goes out capable new left-eye view, the new right-eye view of the capable composition of the back W row H of right-eye view formed of preceding W row H of left-eye view.
The focus depth adjusting method of the adjustable 3 d display device of this depth of field comprises step: input depth of field adjustment information and stereo video signals; Obtain right and left eyes view and the depth of field variable quantity in stereoeffect type and the depth of field adjustment information in the stereo video signals, depth of field change information and amplification coefficient; Amplify the right and left eyes view, and cut-away view; Output right and left eyes view.Depth of field variable quantities such as wherein, the depth of field adjustment information of input comprises the depth of field change information that the increase depth of field still reduces the depth of field, and how many changes of the depth of field is; Comprise left-eye view and right-eye view in the stereo video signals; The right and left eyes view comes from the fractionation of a frame in the stereoscopic video signal; Comprise depth of field variable quantity in the depth of field adjustment information, this depth of field variable quantity is represented with parallax dx, is unit with the pixel; The right and left eyes view is when resolution reduces by half in the horizontal direction, the relation of horizontal amplification coefficient kx and vertical amplification coefficient ky and dx and W:
k x = 2 × ( d x W + 1 )
k Y＝1
When resolution reduces by half in the horizontal direction by the right and left eyes view that split, the relation of kx and ky and dx and W:
k x = d x W + 1
k Y＝2
W is the row pixel count under the full resolution;
The stereoeffect type is arranged according to the right and left eyes view and to be obtained.
In this method; The screen resolution of 3 d display device is W*H; Left-eye view after the amplification and right-eye view resolution all are (W+dx) * H; When under the three-dimensional condition of protrusion, increasing the depth of field, go out capable new left-eye view, the new right-eye view of the capable composition of the preceding W row H of right-eye view formed of back W row H of left-eye view through intercepting; Increase the depth of field at present in the three-dimensional condition of depression, go out capable new left-eye view, the new right-eye view of the capable composition of the back W row H of right-eye view formed of preceding W row H of left-eye view through intercepting; When under the three-dimensional condition of depression, reducing the depth of field, go out capable new left-eye view, the new right-eye view of the capable composition of the preceding W row H of right-eye view formed of back W row H of left-eye view through intercepting; When under the three-dimensional condition of protrusion, reducing the depth of field, go out capable new left-eye view, the new right-eye view of the capable composition of the back W row H of right-eye view formed of preceding W row H of left-eye view through intercepting.
After 3 d display device of the present invention receives depth of field control signal; Parse parallax information dx wherein; Utilize parallax information that the right and left eyes view is amplified, the resolution in the horizontal direction of the view after the amplification exceeds the preceding 3D rendering resolution dx of not fractionation, then according to the depth of field change information that increase still reduces to the depth of field in the depth of field control signal and the type of stereoeffect; The different piece of intercepting right and left eyes view reaches the purpose of adjusting the depth of field.
Focus depth adjusting method of the present invention, through the right and left eyes view is increased depth of field variable quantity in the horizontal direction, i.e. parallax dx, then according to depth of field change information and stereoeffect type, intercepting enlarges the different piece of back image, reaches the purpose of the adjustment depth of field.
Description of drawings
Fig. 1 is the structural representation of 3 d display device of the present invention;
Fig. 2 is the structured flowchart of right and left eyes view acquiring unit in the processing unit;
Fig. 3 is the structured flowchart of control signal acquiring unit in the processing unit;
The concrete structure of Fig. 4 depth of field adjustment unit and with the annexation figure of other part;
Fig. 5 is the formation schematic diagram of stereoeffect;
Fig. 6 is the basic principle figure of the method for depth of field adjusting;
Fig. 7 strengthens the sketch map that the depth of field is carried out video intercepting;
Fig. 8 reduces the sketch map that the depth of field is carried out video intercepting;
Fig. 9 is the flow chart of focus depth adjusting method of the present invention.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Seeing also Fig. 1, is the structural representation of 3 d display device of the present invention.This 3 d display device comprises input unit 10, processing unit 20 and output unit 30.
Input unit 10 comprises controller 11 and 3D video input unit 12; Controller 11 receives and is used to receive the depth of field control signal of input and exports processing unit 20 to, and the 3D vision signal that 12 of 3D video input units are used to receive input also exports processing unit 20 to.In the present embodiment, the depth of field control signal that controller 11 is received comprises depth of field variable quantities such as the increase depth of field still reduces the depth of field change information of the depth of field, and how many changes of the depth of field is, what depth of field variable quantity was common representes with parallax, is 6 pixels etc. like parallax.This depth of field control signal can come from the key information of remote controller or television set self, for example, can on remote controller, establish two hot keys or establish the menu option that the depth of field is regulated at the TV end, is used for the increase or the minimizing of the depth of field.In the concrete design, be set as 15 grades to depth of field adjusting, 0～4 is used to regulate the depth of field of outstanding stereoeffect, and the 5th grade of parallax is 0,6～15 grades of depth of field that are used to regulate the depression stereoeffect.Under the screen resolution of 1080P, every grade of parallax of representing 3 pixels, promptly the maximum disparity of outstanding stereoeffect is 30 pixels, maximum disparity is 15 pixels under the depression stereoeffect.
Processing unit 20 receives depth of field control signal and 3D vision signal, according to the depth of field control signal depth of field of 3D video is adjusted.This processing unit 20 comprises control signal acquiring unit 21, right and left eyes view acquiring unit 22, MCU23 and depth of field adjustment unit 24.Right and left eyes view acquiring unit 22 obtains left-eye view and right-eye view according to the control of MCU23 from the 3D vision signal of input, be sent to depth of field adjustment unit 24; Control signal acquiring unit 21 receives the depth of field control information that controller 11 sends, and obtains corresponding depth of field change information and depth of field variable quantity, and obtains amplification coefficient according to depth of field variable quantity; Depth of field adjustment unit 24 receives amplification coefficient, amplifies the right and left eyes view, and under MCU23 control, according to depth of field change information and depth of field variable quantity, intercepting right and left eyes view.
Below will the each several part of processing unit 20 be described in detail.
As shown in Figure 2, be the structured flowchart of right and left eyes view acquiring unit 22 in the processing unit 20.This right and left eyes view acquiring unit 22 comprises sampling unit 221, main storage 222, split cells 223 and first memory 224 and second memory 225.When the 3D vision signal is imported by 3D video input unit 12; The MCU23 of processing unit 20 sends out the sampling unit 221 that an interrupt signal is given right and left eyes view acquiring unit 22; The data of this sampling unit 221 intercepting one frame from the 3D vision signal are deposited in the main storage 222; Utilize then split cells 223 under the control of MCU23 to existing the data in the main storage 222 to split, split out left-eye view and right-eye view.Here, MCU23 not only sends interrupt signal, also analyzes arranging of right and left eyes view in this two field picture, on the right-eye view left side, then is the depression effect like left-eye view; Otherwise be the protrusion stereoeffect; Also analyze the form of this two field picture simultaneously, and judge that according to form the right and left eyes view resolution is to reduce by half in the horizontal direction or in vertical direction, this information supplies split cells 223 stereoscopic image signals to split.The 3D video has a variety of forms, as about, up and down, interweave etc., the combination of different-format right and left eyes view is different, the format information in the vision signal that the fractionation of 223 pairs of data of split cells analyzes based on MCU.The view resolution that different-format splits out is different, if about or the form that vertically interweaves, resolution reduces by half on the horizontal direction of the right and left eyes view that splits out, if up and down or the level form that interweaves, then resolution reduces by half in vertical direction.For instance; Suppose that the 3D film source is 1080P, promptly resolution is 1920*1080, if the 3D form be about or vertically interweave; The resolution of the right and left eyes view that splits out is 960*1080, up and down or the resolution of the right and left eyes view that splits out when interweaving form of level be 1920*540.The right and left eyes view that is split out is existed respectively in first memory 224 and the second memory 225.
Fig. 3 is the structured flowchart of control signal acquiring unit 21 in the processing unit 20.This control signal receiving element comprises control signal decoding unit 211 and amplification coefficient resolution unit 212.Control signal decoding unit 211 receives the depth of field control signal of controller 11 inputs; And under the control of MCU23, control signal is decoded; Output is that the parallax dx and the depth of field of the right and left eyes view of unit increases the depth of field change information that still reduces with the pixel; This parallax dx is the parallax that needs adjustment on the right and left eyes view behind the screen; Be depth of field variable quantity, MCU23 is according to the 3D video format information simultaneously, and the right and left eyes view resolution that output is split out is in the horizontal direction or the information that reduces by half in vertical direction.Parallax dx and depth of field change information all export amplification coefficient resolution unit 212 to.
The resolution of the right and left eyes view of amplification coefficient resolution unit 212 according to the parallax dx of input, after splitting reduces by half in the horizontal direction or in vertical direction and generates horizontal amplification coefficient kx and vertical amplification coefficient ky.Suppose that full resolution (3D rendering do not split before resolution) is W*H (W row pixel, the capable pixel of H), when the right and left eyes view that is split when resolution reduces by half in the horizontal direction, the relational expression of kx and ky and dx and W is suc as formula shown in (1):
k x = 2 × ( d x W + 1 )
k Y＝1................(1)
When resolution reduced by half in the horizontal direction by the right and left eyes view that split, the relational expression of kx and ky and dx and W was suc as formula shown in (2):
k x = d x W + 1 . . . . . . ( 2 )
k Y＝2
The horizontal amplification coefficient kx of amplification coefficient resolution unit 212 outputs regulates the depth of field for depth of field adjustment unit 24 with vertical amplification coefficient ky, and simultaneously, this amplification coefficient resolution unit 212 is also exported parallax dx and depth of field change information to depth of field adjustment unit 24.
The concrete structure of depth of field adjustment unit 24 and as shown in Figure 4 with the annexation of other part.This depth of field adjustment unit 24 comprises image amplifying unit 241, interception unit 243 and the 3rd memory 242.Image amplifying unit 241 receives from the amplification coefficient kx and the ky of amplification coefficient resolution unit 212 and comes from first memory 224 and the left-eye view and the right-eye view of second memory 225 storages; And two views are amplified by amplification coefficient kx and ky, left-eye view after the amplification and right-eye view are stored in the 3rd memory 242.Right and left eyes view after the amplification, in the horizontal direction greater than a screen dx pixel, promptly resolution becomes (W+dx) * H, the parallax of dx for adjusting.
Interception unit 243 is according to the parallax dx of amplification coefficient resolution unit 212 outputs, and the type of the stereoeffect of depth of field variable quantity and MCU23 output is carried out intercepting to the view data that is exaggerated in the 3rd memory 242.Serve screen 40 to the right and left eyes view of intercepting through this output unit 30 then.
Intercepting is that the depth of field is regulated pith, will do detailed introduction to the process that interception unit 243 is implemented image interception below.
At first introduce the formation principle of stereoeffect, as shown in Figure 5, stereoeffect has depression and protrudes these two types; L represents left-eye view, and R represents right-eye view, when the left side of L at R; Observer's eyes are observed the sight line intersection point of L and R at the screen rear, and stereoscopic picture plane demonstrates the depression effect; When L the right at R, observer's eyes are observed the sight line intersection point of L and R in screen the place ahead, and stereoscopic picture plane demonstrates the depression effect.
The method that the depth of field is regulated is exactly to regulate the parallax of right and left eyes view, and its basic principle is as shown in Figure 6.In depression during situation, when R moves to R ', L and R be apart from becoming far away, the increase of expression parallax, and sight line watches the intersection point of L and R also to become away from screen, and such depression effect is obvious more, and promptly the depth of field is big more; When the left side of R at L, the situation of little parallax (protruding), i.e. the protrusion situation of stereoscopic picture plane, the little depth of field shown in the figure (protruding); L and R are far away more, the situation of big parallax (protruding), and parallax strengthens, and it is obvious more then to protrude situation, occurs the result of the big depth of field (protruding) among the figure.Generally speaking, parallax strengthens the depth of field and strengthens, and parallax reduces the depth of field and reduces.
Interception unit 243 is the right and left eyes view parallax dx and the parallax adjustment information of unit according to 212 decodings of amplification coefficient resolution unit and output with the pixel, and the right and left eyes view after amplifying in the 3rd memory 242 is strengthened the depth of field and the intercepting that reduces the depth of field.
As shown in Figure 7, be to strengthen the sketch map that the depth of field is carried out video intercepting.The view intercepting that strengthens the depth of field is a parallax dx pixel that on the basis of original parallax, increases the right and left eyes view again, and the dx here comes the input of self information amplification coefficient resolution unit 212.Storage is to amplify the right and left eyes view of back horizontal resolution greater than dx pixel of screen level resolution in the 3rd memory 242, and the resolution of establishing screen is W*H, and promptly W row H is capable.Under the three-dimensional condition of protrusion, 243 interceptings of MCU23 control interception unit go out that the back W row H of left-eye view is capable to form new left-eye view, and the preceding W row H of right-eye view is capable to form new right-eye view, has promptly increased the parallax of dx pixel of right and left eyes view; Under the three-dimensional condition of depression, 243 interceptings of MCU23 control interception unit go out the new left-eye view of the capable composition of preceding W row H of left-eye view, and the back W row H of right-eye view is capable to form new right-eye view, thereby reaches the purpose of a parallax dx pixel that increases the right and left eyes view.
As shown in Figure 8, be to reduce the sketch map that the depth of field is carried out video intercepting.Reducing the intercepting of the depth of field, then is a parallax dx pixel that on the basis of original parallax, reduces the right and left eyes view, and the dx here is from the input of amplification coefficient resolution unit 212.The intercepting that reduces the depth of field is similar with the intercepting that strengthens the depth of field; Under the three-dimensional condition of depression; 243 interceptings of MCU23 control interception unit go out the new left-eye view of the capable composition of back W row H of left-eye view; The preceding W row H of right-eye view is capable to form new right-eye view, has promptly increased the parallax of dx pixel of right and left eyes view; Under the three-dimensional condition of protrusion, 243 interceptings of MCU23 control interception unit go out the new left-eye view of the capable composition of preceding W row H of left-eye view, and the back W row H of right-eye view is capable to form new right-eye view, thereby reaches the purpose of a parallax dx pixel that increases the right and left eyes view.
Through the adjusted vision signal of the depth of field, the screen that is exported to 3 d display device by output device shows.
After above-mentioned 3 d display device receives depth of field control signal; Parse parallax information dx wherein; Utilize parallax information that the right and left eyes view is amplified, the resolution in the horizontal direction of the view after the amplification exceeds the preceding 3D rendering resolution dx of not fractionation, then according to the depth of field change information that increase still reduces to the depth of field in the depth of field control signal; The different piece of intercepting right and left eyes view reaches the purpose of adjusting the depth of field.The focus depth adjusting method that this device adopts is summed up as follows through concluding:
Seeing also Fig. 9, is the flow chart of focus depth adjusting method of the present invention.The concrete steps of depth of field adjustment are following:
Step S1, input depth of field adjustment information and stereo video signals;
Depth of field variable quantities such as the depth of field adjustment information of input comprises the depth of field change information that the increase depth of field still reduces the depth of field, and how many changes of the depth of field is; Comprise left-eye view and right-eye view in the stereo video signals.
Step S2 obtains right and left eyes view and the depth of field variable quantity in stereoeffect type and the depth of field adjustment information in the stereo video signals, depth of field change information and amplification coefficient;
Sampling unit 221 is intercepting one frame from the stereo video signals of output, and splits out the right and left eyes view by split cells 223, is stored in respectively in first memory 224 and the second memory 225; Control signal decoding unit 211 in the control signal acquiring unit 21 receives depth of field control signal, and exports depth of field variable quantity and the depth of field change information that wherein comprises, and depth of field variable quantity is represented with parallax dx, is unit with the pixel; Amplification coefficient resolution unit 212 in the control signal acquiring unit 21 according to the full resolution information in parallax dx and the three-dimensional image signal, is obtained amplification coefficient; MCU obtains the stereoeffect type according to the characteristic of a picture format and a two field picture, and judgement is the stereoeffect of protrusion stereoeffect or depression.
Step S3 amplifies the right and left eyes view, and cut-away view;
Image amplifying unit 241 in the depth of field adjustment unit 24 amplifies the right and left eyes view according to amplification coefficient, and interception unit 243 is according to depth of field variable quantity, and depth of field change information and stereoeffect type are carried out intercepting to the right and left eyes view under the control of MCU23.
Step S4, output right and left eyes view;
Right and left eyes view after the intercepting shows through the screen 40 that output unit 30 exports display unit to.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims (15)

1. the 3 d display device that the depth of field is adjustable comprises: input unit, the 3D vision signal and the depth of field control signal of the outside input of reception; Processing unit receives depth of field control signal and 3D vision signal, according to the depth of field control signal depth of field of 3D video is adjusted; Output unit, the adjusted 3D vision signal of the output depth of field.
2. according to the adjustable 3 d display device of the said depth of field of claim 1; It is characterized in that: input unit comprises controller and 3D video input unit; Controller receives depth of field control signal; 3D video input unit receives the 3D vision signal, and depth of field control signal comprises depth of field change information and depth of field variable quantity.
3. according to the adjustable 3 d display device of the said depth of field of claim 2, it is characterized in that this processing unit comprises MCU;
The control signal acquiring unit receives the depth of field control information that controller sends, and obtains corresponding depth of field change information and depth of field variable quantity, and obtains amplification coefficient according to depth of field variable quantity;
Right and left eyes view acquiring unit according to the control of MCU, obtains left-eye view and right-eye view from the 3D vision signal of input, be sent to depth of field adjustment unit; And
Depth of field adjustment unit receives amplification coefficient, amplifies the right and left eyes view, and under MCU control, according to depth of field change information and depth of field variable quantity, intercepting right and left eyes view.
4. according to the adjustable 3 d display device of the said depth of field of claim 3, it is characterized in that this right and left eyes view acquiring unit comprises:
Sampling unit, the data of intercepting one frame from the 3D vision signal;
Main storage, the data of store sample unit intercepting;
Split cells according to the format information in the vision signal, splits there being the data in the main storage, splits out left-eye view and right-eye view.
And first memory and second memory, store left-eye view and the right-eye view that splits out respectively.
5. according to the adjustable 3 d display device of the said depth of field of claim 4; It is characterized in that; MCU analyzes to this two field picture; Judge that the right and left eyes view is to show the depression stereoeffect or the form of protrusion stereoeffect and this two field picture, and judge that according to form the right and left eyes view resolution is to reduce by half in the horizontal direction or in vertical direction.
6. according to the adjustable 3 d display device of the said depth of field of claim 5, it is characterized in that this control signal receiving element comprises:
The control signal decoding unit; Receive the depth of field control signal of controller input; And under the control of MCU, control signal is decoded; Output is that the parallax dx and the depth of field of the right and left eyes view of unit increases the depth of field change information that still reduces with the pixel, and this parallax dx is the depth of field variable quantity that needs adjustment on the right and left eyes view behind the screen; With
The amplification coefficient resolution unit according to reducing by half in the horizontal direction or in vertical direction of the right and left eyes view after the parallax dx that imports, the fractionation, generates horizontal amplification coefficient and vertical amplification coefficient.
7. according to the adjustable 3 d display device of the said depth of field of claim 6, it is characterized in that, when resolution reduces by half in the horizontal direction by the right and left eyes view that split, the relation of horizontal amplification coefficient kx and vertical amplification coefficient ky and dx and W:
k x = 2 × ( d x W + 1 )
k Y＝1
W is the row pixel count under the full resolution.
8. according to the adjustable 3 d display device of the said depth of field of claim 6, it is characterized in that: when resolution reduces by half in the horizontal direction by the right and left eyes view that split, the relation of kx and ky and dx and W:
k x = d x W + 1
k Y＝2
W is the capable pixel count under the full resolution.
9. according to the adjustable 3 d display device of the said depth of field of claim 6, it is characterized in that this depth of field adjustment unit comprises:
The image amplifying unit, the left-eye view and the right-eye view that receive from the amplification coefficient of amplification coefficient resolution unit and come from first memory and store with second memory, and two views are amplified by amplification coefficient;
The 3rd memory, left-eye view and right-eye view that storage is amplified through the image amplifying unit;
Interception unit, according to the parallax dx of amplification coefficient resolution unit output, the type of the stereoeffect of depth of field variable quantity and MCU output is to being carried out intercepting in the 3rd memory.
10. according to the adjustable 3 d display device of the said depth of field of claim 9; It is characterized in that; Left-eye view after the amplification and right-eye view resolution are (W+dx) * H; When under the three-dimensional condition of protrusion, increasing the depth of field, the intercepting of MCU control interception unit goes out capable new left-eye view, the new right-eye view of the capable composition of the preceding W row H of right-eye view formed of back W row H of left-eye view; Increase the depth of field at present in the three-dimensional condition of depression, the intercepting of MCU control interception unit goes out capable new left-eye view, the new right-eye view of the capable composition of the back W row H of right-eye view formed of preceding W row H of left-eye view.
11. according to the adjustable 3 d display device of the said depth of field of claim 9; It is characterized in that; Left-eye view after the amplification and right-eye view resolution are (W+dx) * H; When under the three-dimensional condition of depression, reducing the depth of field, the intercepting of MCU control interception unit goes out capable new left-eye view, the new right-eye view of the capable composition of the preceding W row H of right-eye view formed of back W row H of left-eye view; When under the three-dimensional condition of protrusion, reducing the depth of field, the intercepting of MCU control interception unit goes out capable new left-eye view, the new right-eye view of the capable composition of the back W row H of right-eye view formed of preceding W row H of left-eye view.
12. a focus depth adjusting method comprises step:
Step S1, input depth of field adjustment information and stereo video signals;
Step S2 obtains right and left eyes view and the depth of field variable quantity in stereoeffect type and the depth of field adjustment information in the stereo video signals, depth of field change information and amplification coefficient;
Step S3 amplifies the right and left eyes view, and cut-away view;
Step S4, output right and left eyes view.
13. focus depth adjusting method according to claim 12 is characterized in that, among the step S1, and depth of field variable quantity such as the depth of field adjustment information of input comprises and increases the depth of field change information that the depth of field still reduces the depth of field, and how many changes of the depth of field is; Comprise left-eye view and right-eye view in the stereo video signals.
14. focus depth adjusting method according to claim 12 is characterized in that, among the step S2, the right and left eyes view comes from the fractionation of a frame in the stereoscopic video signal; Comprise depth of field variable quantity in the depth of field adjustment information, this depth of field variable quantity is represented with parallax dx, is unit with the pixel; The right and left eyes view is when resolution reduces by half in the horizontal direction, the relation of horizontal amplification coefficient kx and vertical amplification coefficient ky and dx and W:
k x = 2 × ( d x W + 1 )
k Y＝1
When resolution reduces by half in the horizontal direction by the right and left eyes view that split, the relation of kx and ky and dx and W:
k x = d x W + 1
k Y＝2
W is the row pixel count under the full resolution;
The stereoeffect type is arranged according to the right and left eyes view and to be obtained.
15. focus depth adjusting method according to claim 12; It is characterized in that among the step S3, screen resolution is W*H; Left-eye view after the amplification and right-eye view resolution all are (W+dx) * H; When under the three-dimensional condition of protrusion, increasing the depth of field, go out capable new left-eye view, the new right-eye view of the capable composition of the preceding W row H of right-eye view formed of back W row H of left-eye view through intercepting; Increase the depth of field at present in the three-dimensional condition of depression, go out capable new left-eye view, the new right-eye view of the capable composition of the back W row H of right-eye view formed of preceding W row H of left-eye view through intercepting; When under the three-dimensional condition of depression, reducing the depth of field, go out capable new left-eye view, the new right-eye view of the capable composition of the preceding W row H of right-eye view formed of back W row H of left-eye view through intercepting; When under the three-dimensional condition of protrusion, reducing the depth of field, go out capable new left-eye view, the new right-eye view of the capable composition of the back W row H of right-eye view formed of preceding W row H of left-eye view through intercepting.
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