CN102868904A - Stereoscopic image display method and image timing controller - Google Patents

Stereoscopic image display method and image timing controller Download PDF

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CN102868904A
CN102868904A CN2011101966631A CN201110196663A CN102868904A CN 102868904 A CN102868904 A CN 102868904A CN 2011101966631 A CN2011101966631 A CN 2011101966631A CN 201110196663 A CN201110196663 A CN 201110196663A CN 102868904 A CN102868904 A CN 102868904A
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image
eye
eye image
common
common sub
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柯杰斌
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Acer Inc
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Acer Inc
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Abstract

The invention provides a stereo image display method and an image time sequence controller, wherein the method comprises the following steps: receiving stereo image information; generating a left-eye image, a right-eye image and a common sub-image according to the stereo image information, wherein the common sub-image also comprises a common part of the left-eye image and the right-eye image; and playing the left eye image, the right eye image and the common sub-image on a three-dimensional image display device according to a preset image playing sequence. The invention can improve the image quality, brightness and resolution of the 3D picture and also can avoid fatigue caused by picture flicker when the audience watches the 3D film.

Description

3 D image display method and image time schedule controller
Technical field
The present invention relates to a kind of stereo-picture Display Technique, particularly a kind of 3 D image display method of use one common state.
Background technology
The generation of 3D stereoscopic vision is to observe the difference that has when seeing object slightly when human two, and this is also referred to as parallax (parallax), and human brain can be understood the parallax of eyes and judgment object distance to produce stereoscopic vision.Under this basis, develop 3D stereo display technique miscellaneous, mainly be divided into glasses and the naked two large types of looking.When the user need to wear Special spectacles when viewing and admiring the 3D anaglyph, can be divided into according to its operating mode being active and passive type.
Passive type 3D anaglyph spectacles also can be divided into red blue color filter type 3D anaglyph spectacles and passive polarization type 3D anaglyph spectacles.All have a polaroid on the left eyeglass lens of passive polarization type 3D anaglyph spectacles and the right eye eyeglass, the light that shakes to filter former present dynasty different directions, the light of obstruct and light polarizing film perpendicular direction, and the identical light of transference light polarizing film direction passes through.Use the passive polarization type 3D anaglyph spectacles corresponding polarization type stereoscopic display device of also need arranging in pairs or groups, the polarization type stereoscopic display device, for example LCD can use two liquid crystal panels to show separately vertical and horizontal polarisation picture, but this kind mode cost is higher.General way commonly used is the vertical and horizontal polaroid of arranging at screen surface configuration oem character set, use respectively half the phase delay design of pixel by phase delay cell (patterned retarder) of picture to allow strange/even lines difference produce 3D effect to carry out polarisation, the cost of this mode is lower, but the picture resolution that left eye and right eye are seen (level or vertical resolution) only has half, as shown in Figure 1, initiatively polarizing layer (active polarizer) 102 and phase delay cell 103 wherein before liquid crystal panel 101, have been settled, left eye at 3D polaroid glasses 104 receives the left-eye image that even lines is only arranged in counterclockwise circularly polarized mode, and the right eye of 3D polaroid glasses 104 receives the eye image that odd lines is only arranged in clockwise circularly polarized mode.
The 3D television system of active-shutter can be applicable to plasma television, LCD or DLP back projection TV etc., and need shutter glasses (shutter glasses) corresponding to collocation and the TV signal of playing to carry out synchronously, could correctly watch corresponding 3D picture, and the price of shutter glasses is relatively high.View and admire the 3D film when using active-shutter 3D TV, for left eye and right eye, every picture all has complete resolution, yet because the cause that left-eye image and eye image wheel spread, the picture update rate that can watch (frame rate) only has half of script image, and the switching of shutter glasses also can cause flicker.
Tradition 3D stereo-picture or other correlation technique concepts all are considered as independently the left-eye/right-eye picture signal to stereo-picture and present 3D stereoscopic vision with the display mode of left-eye/right-eye image independently.Though such way is simple, can cause the shutter glasses flicker, or the problem that lowers of the resolution watched of polaroid glasses, because all being based on, all design concepts only show two states: left-eye image and eye image.
Summary of the invention
In order to overcome the defective of prior art, the invention provides a kind of 3 D image display method, comprising: receive a stereo image information; According to this stereo image information, produce a left-eye image, an eye image and a common subimage, wherein this common subimage also comprises the common ground of this left-eye image and this eye image; And according to predetermined image player order, on a stereoscopic display device, play this left-eye image, this eye image and this common subimage.
The present invention also provides a kind of image clock generator, comprise: a common state generator, in order to receive a stereo image information, and according to this stereo image information, to produce a left-eye image, an eye image and a common subimage, wherein this common subimage also comprises the common ground of this left-eye image and this eye image; And an image controller, in order to according to image player order, on a stereoscopic display device, play this left-eye image, this eye image and this common subimage.
The present invention can allow the content of common subimage can be presented in simultaneously spectators' eyes, and can promote image quality, brightness and the resolution of 3D picture, the fatigue that also can avoid spectators to produce because of film flicker when viewing and admiring the 3D film.
Description of drawings
Fig. 1 is for showing the schematic diagram of a traditional 3D liquid crystal indicator and polaroid glasses.
Fig. 2 A is for showing the schematic diagram according to the common state generator of one embodiment of the invention.
Fig. 2 B, Fig. 2 C carry out the schematic diagram that state is judged for showing the common state generator according to another embodiment of the present invention for the different images source.
Fig. 3 A, Fig. 3 B are for showing the schematic diagram that calculates identical image according to the common state generator of one embodiment of the invention.
Fig. 3 C, Fig. 3 D are for showing whether between the common state generator calculating consecutive image according to one embodiment of the invention be the schematic diagram of identical image.
Fig. 3 E, Fig. 3 F, Fig. 3 G, Fig. 3 H are for showing according to the use different blocks of one embodiment of the invention schematic diagram with the expression common state.
Fig. 4 A, Fig. 4 B are for showing the schematic diagram of the left-eye image according to one embodiment of the invention, common subimage and eye image.
Fig. 4 C uses different images to set the flow chart of shelves for showing the common state generator according to one embodiment of the invention for different images.
Fig. 5 is for showing according to the block diagram of perspective view of an embodiment of the present invention as display unit 500.
Fig. 6 A, Fig. 6 B are for showing according to the schematic diagram of perspective view of an embodiment of the present invention as the image player order of display unit collocation shutter glasses.
Fig. 6 C is for showing the image player schematic diagram sequentially according to the stereoscopic display device collocation polaroid glasses of another embodiment of the present invention.
Fig. 6 D is for showing according to the naked parallax stereogram of another embodiment of the present invention schematic diagram as the image player order of display unit.
Fig. 7 is for showing according to the flow chart of perspective view of an embodiment of the present invention as display packing.
And the description of reference numerals in the above-mentioned accompanying drawing is as follows:
101～liquid crystal panel;
102～initiatively polarizing layers;
103～phase delay cell;
104～rotatory polarization glasses;
201～common state generator;
301,303,305～left-eye image;
302,304～eye image;
306,307,308,309,310,311～image;
500～stereoscopic display device;
501～image controller;
502～state controller;
503～state delay device;
510～image timing control unit;
520～display floater;
530～initiatively control photosphere.
Embodiment
About aforementioned and other technology contents, characteristics and effect of the present invention, in the detailed description of a following cooperation preferred embodiment with reference to the accompanying drawings, can clearly present.
Because the correlation technique of traditional 3D stereo-picture only defines left-eye image and eye image, yet in fact human eyes are when observing object, two eye pattern pictures only have difference slightly, in other words, having many objects in the two eye pattern pictures looks like identical, the present invention proposes the concept of " common subimage " at this, and based on this concept to improve the 3D stereo image display system of existing various active/passive polarization types.Fig. 2 A is for showing the schematic diagram according to the common state generator 201 of one embodiment of the invention, wherein stereo image information can be the source of any 3D of having information, for example: the 2D film is through the 3D film that produces after suitably processing (for example be the 2D image with corresponding depth image), or the 3D film (having had the left-eye/right-eye image) that is captured by 3D stereophotograph equipment, also can be the file that has the MVC form of 3D information in blue light (Blu-ray) form, or the 2D image adds that corresponding depth information is to present the source of 3D steric information.The stereo-picture that common state generator 201 is exported comprises left-eye image, eye image and common subimage.Status signal comprises state 1,2,3, wherein state 1,2,3 is defined as respectively left-eye image, eye image and common subimage, common ground in left-eye image and the eye image, this is called common subimage, its purpose is to allow the content of common subimage can be presented in simultaneously spectators' eyes, and can promote image quality, brightness and the resolution of 3D picture, the fatigue that also can avoid spectators when viewing and admiring the 3D film, to produce because of film flicker.
When stereo image information process common state generator 201, can obtain the stereo-picture that left-eye image, eye image or common subimage consist of, and corresponding status signal.Fig. 2 B and Fig. 2 C are for showing the schematic diagram according to the common state generator 201 of another embodiment of the present invention.Shown in Fig. 2 B, if the stereo image information that common state generator 201 receives is the captured left-eye image of 3D stereoscopic camera and eye image, then common state generator 201 judges whether left-eye image is identical with eye image, if, then the status signal of output is state 3, if not, then the status signal of output is state 1 (left-eye image) or state 2 (eye image).Shown in Fig. 2 C, if the stereo image information that common state generator 201 receives is the information of various visual angles or the information that the 2D image adds depth image, then 201 of common state generators judge whether left-eye image and eye image that it produces be identical, if, then the status signal of output is state 3, if not, then the status signal of output is state 1 (left-eye image) or state 2 (eye image).In one embodiment, common state generator 201 can be the performed software of personal computer, the scaler (scalar) in the display, the time schedule controller (T-CON) in the display floater or the firmware of player (firmware), but the invention is not restricted to this.The stereo-picture that common state generator 201 produces can be its stereo image information that receives and is produced through bypass (bypass) or by known 3D format conversion technology.
Common state generator 201 can carry out different processing for different stereo image information sources, but its purpose all is to find out the common ground of left-eye image (state 1) and eye image (state 2).Fig. 3 A, Fig. 3 B, Fig. 3 C, Fig. 3 D are the schematic diagram of demonstration according to the algorithm of the common state generator of one embodiment of the invention.In one embodiment, as shown in Figure 3A, whether the left-eye/right-eye image that common state generator 201 can calculate each image pair is close, for example: the pixel gray level value difference of left-eye image 301 and eye image 302 is less than 10, or the pixel gray level value of left-eye/right-eye image is less than 5, also or the aberration of the pixel of left-eye/right-eye image (DeltaE) less than 1 o'clock, common state generator 201 judges that the right and left eyes image of these image pair has the pixel of a state 3.In another embodiment, shown in Fig. 3 B, common state generator 201 can be for per two continuous left-eye image and eye image (that is front and back image, for example left-eye image 303 and eye image 304, or eye image 304 and left-eye image 305), whether be close image, for example: the absolute value that subtracts each other the result of the pixel gray level value of front and back image is less than 10, and image had the pixel of a state 3 before and after common state generator 201 was judged this if calculating it.In another embodiment, when the GTG value of the pixel of front and back image less than 5, also or the aberration of the pixel of front and back image (DeltaE) less than 1 o'clock, therefore the otherness of left-eye image and eye image is very little the time, and then the common state generator judges that left-eye image and eye image are common subimage.In another embodiment, common state generator 201 also can calculate for the GTG value variation that consecutive numbers is opened between the image, the common images of existence 3 whether between the consecutive image that is calculated to learn, shown in Fig. 3 C, the GTG value of image 306 and 307 pixel is changed to 3, the GTG value of image 306 and 308 pixel is changed to 6, what then the common state generator can add up that GTG value between these continuous 3 images changes one adds total value less than predetermined value (for example 10), take this pixel of judging image 306 as state 3.Shown in Fig. 3 D, the GTG value of image 309 and 310 pixel is changed to 6, the GTG value of image 309 and 311 pixel is changed to 6, what then the common state generator can add up that GTG value between these continuous 3 images changes one adds total value greater than predetermined value (for example 10), the image take this pixel of judging image 309 as state 1.Can calculate the complete common subimage with state 3 according to aforesaid way, wherein the state value of each pixel is also replaceable is the block state value, that is use the block (the large I of block by single pixel to whole picture) of a plurality of pixels, and replace the state of this block with a typical value, be depicted as more than half methods such as Fig. 3 E, Fig. 3 F, take the more than half persons of number of states as main, also or shown in Fig. 3 G, take the state value at block center as main, also or such as Fig. 3 H, it is 1 that one state value is arranged in block, and then the state value of this block then is 1.Pixel or block that state 3 is only arranged in the common subimage in sum.
If being the 2D image, the stereo image information that common state generator 201 receives adds the MVC form of 3D content in depth information or the Blu-ray Disc, wherein the 2D image can utilize degree of depth video camera to produce with corresponding depth information, in this embodiment, can utilize known technology (for example: Blu-ray player or PC) to be converted into take the stereo-picture of right and left eyes as the basis 2D image and depth information (or MVC form), and by specific algorithm (after being illustrated in), to be converted to stereo-picture and corresponding state information.In one embodiment, common state generator 201 is state 3 with the zone definitions of certain depth value in the depth image, for instance, general left-eye image and eye image are for the scenery of certain depth, the image of seeing does not almost have difference, therefore can be state 3 with the zone definitions of certain depth value in the depth image or certain depth scope, left eye or eye image be then looked to be defined as state 1 or state 2 in remaining zone.For instance, if in depth image, use GTG value 0 to 255 with the expression different depth, then the above-mentioned certain depth scope that may be defined as state 3 can be GTG value 0 to 10,120 to 135 or 233 to 255, and remaining GTG value is then regarded it as left-eye image or eye image to be defined as state 1 or state 2.
Whole left-eye image of previous embodiment explanation or eye image are the situation of state 3, in another embodiment, common state generator 201 also can calculate the common factor part of left-eye image and eye image, that is common subimage, and the stereo-picture of amplification can represent with following letter formula:
Frame{L，R}→Frame{L *，S，R *}
&property(Frame)＝StateX，wherein?X＝1～3
Wherein the left-eye image corresponding states 1, eye image corresponding states 2, and common subimage corresponding states 3, wherein the common state generator also can be exported status signal corresponding to each image, with panel and the active polarizing layer of further control 3D display.In one embodiment, take left-eye image as example, L *Can be pure left-eye image, left-eye image or optimization left-eye image, wherein left-eye image is processed rear resulting left-eye image for carrying out the 3D stereo-picture, " pure left-eye image " expression only comes across the subimage of the part object of left-eye image, and it is rear to obtain the left-eye image of better visual effect that the optimization left-eye image represents to use image to process reinforcement for different scenes.Common subimage can represent with following letter formula:
S＝(L *∩R *)
Wherein S represents common subimage, L *Can be pure left-eye image, left-eye image or optimization left-eye image, R *Can be pure eye image, eye image or optimization eye image, and L *With R *Be pair relationhip, for example L *Be optimization left-eye image, R *Be required to be the optimization eye image.For L *With R *The part of common factor outside, that is the zone outside the common subimage S, can compensate black picture, white picture or other can improve the image of image quality, for example comprise special ratios (for example: common subimage in the ratio of picture less than 50%) or the image that is optimized for the left-eye/right-eye image.Shown in Fig. 4 A and Fig. 4 B, the present invention can calculate L with different modes *, R *And corresponding common subimage S, the wherein L among Fig. 4 A *And R *Be respectively left-eye image and eye image, the L among Fig. 4 B *And R *Be respectively pure left-eye image and pure eye image.
In another embodiment, the present invention can be respectively finely tunes for state 1,2,3 left-eye image, eye image and common subimage, for example common state generator 201 uses image setting shelves (profile) A to heighten state 1,2 contrast and saturation, and reduces its overall brightness; Common state generator 201 uses image setting shelves B to heighten the brightness of state 3, its flow process please refer to Fig. 4 C, at step S410, if common state generator 201 judges that this image is state 3, then use image setting shelves B, otherwise use image setting shelves A, that is utilize the detecting result of the status attribute of image, accordingly image is applied mechanically to different image setting shelves, process the change left-eye image with image, the pixel value of eye image and common subimage, wherein the image that carries out of image setting shelves A and image setting shelves B is processed the brightness that comprises institute corresponding region in left-eye image/eye image of adjusting in state 1～3/common subimage, contrast, Gamma, saturation and the colour of skin one of at least, but the invention is not restricted to this.
Fig. 5 is for showing according to the block diagram of perspective view of an embodiment of the present invention as display unit 500.Stereoscopic display device 500 comprises common state generator 201, image controller 501, state controller 502, display floater 520 and initiatively controls photosphere 530, after common state generator 201 calculates every left-eye image, eye image and common subimage, and output stereo-picture, and can be by the image player order of an image controller 501 with left-eye image, eye image and the common subimage of control in the stereo-picture, and export stereo-picture to display floater 520.In addition, more by a state controller 502 with the subelement (for example: initiatively control photosphere 530) of control in the stereoscopic display device 500, carry out the control of correspondence with the different conditions for stereo-picture, its details will be introduced in aftermentioned embodiment.In one embodiment, the image time schedule controller 510 that common state generator 201, image controller 501 and state controller 502 form can be the performed software of personal computer, the scaler (scalar) in the display, the time schedule controller (T-CON) in the display floater or the firmware of player (firmware), but the invention is not restricted to this.
In one embodiment, as shown in Figure 6A, if the frame frequency of left-eye image and eye image is 60Hz (NTSC form), when using active shutter glasses of the present invention, the playing image of stereoscopic display device of the present invention sequentially can be L *→ S → R *→ S → L *→ S, that is after every left-eye image and eye image, insert a common subimage, this moment, the picture disply frequency of stereoscopic display device was required to be 240Hz, this is take the NTSC form as example, if with the PAL form, the picture disply frequency that then needs 200Hz is in order to show the output image of 2 haplotype data amounts at the same time.In another embodiment, shown in Fig. 6 B, the image sequence that stereoscopic display device is play also can be L *→ S → R *→ L *→ S → R *That is insert a common subimage before only after left-eye image, reaching eye image, this moment, the picture disply frequency of stereoscopic display device was required to be 180Hz, this is take the NTSC form as example, if with the PAL form, the picture disply frequency that then needs 150Hz is in order to show the output image of 1.5 haplotype data amounts at the same time.In the aforementioned embodiment, originally shutter glasses is that the right eye eyeglass is closed and left eyeglass lens is closed (that is left eyeglass lens is opened and the right eye eyeglass is opened) for the mode of operation of the image of state 1 and state 2, yet the image for state 3, shutter glasses has the state of " two with opening ", that is left eyeglass lens and right eye eyeglass are opened simultaneously, to allow eyes can observe simultaneously common subimage, so as to promoting picture quality.
In another embodiment, shown in Fig. 6 C, when using polaroid glasses collocation active polarizing layer, the image player of stereoscopic display device 500 of the present invention sequentially can be L *→ S → R *→ S → L *→ S, or L *→ S → R *→ L *→ S → R *In stereoscopic display device 500, has a state controller 502, with control active polarizing layer, when receiving the signal of state 3, state controller 502 control initiatively polarizing layers between about between middle polarizing angle send picture signal, the eyes of polaroid glasses can be observed the common subimage of state 3 simultaneously at this moment.
In another embodiment, shown in Fig. 6 D, when stereoscopic display device 500 uses naked parallax stereogram as technology (such as disparity barrier formula (parallax barriers)/active lens (Active lenses)/directive property (direct backlight) backlight etc.), be operator scheme originally at naked parallax stereogram as the left-eye image in the display unit (state 1) and eye image (state 2), the common subimage of state 3 then is applied to naked parallax stereogram as the 2D pattern of display unit.More specifically, in one embodiment, for the naked display of looking of 3D that uses disparity barrier, state controller 502 is the controller of disparity barrier, when it received the signal of state 3, state controller 502 can be controlled disparity barrier, views and admires pattern and sends the signal that 2D views and admires to switch to 2D.In another embodiment, for using the initiatively naked display of looking of 3D of lens, state controller 502 is the initiatively controller of lens, when it receives the signal of state 3, then the lens angle of state controller 502 meeting control active lens recovers normal, view and admire pattern and send the signal that 2D views and admires to allow naked parallax stereogram switch to 2D as display unit, and two can receive left-eye image and eye image simultaneously.In another embodiment, for using the directive property naked display of looking of 3D backlight, state controller 502 is the directive property backlight module controller of (or being called initiatively light sensing layer), when it receives state 1,2 status signal, state controller can be opened respectively left district backlight module and the right district backlight module in the directive property backlight module, to allow human eye receive respectively left-eye image and eye image, this is the 3D pattern of directive property backlight module.When it received the signal of state 3, then left district backlight module and the right district backlight module in the state controller 502 meeting control directive property backlight modules opened simultaneously, views and admires pattern and sends the signal that 2D views and admires to allow naked parallax stereogram switch to 2D as display unit.Previous embodiment only is that the present invention is in the application mode of different stereoscopic display devices, when not limiting the present invention with this.
The signal of the common subimage of the state 3 among the present invention corresponding stereoscopic display device of need arranging in pairs or groups, and the stereo-picture display unit can be used the Display Techniques such as LCD, plasma or OLED, the LCD display polarizing layer (active polarizer) initiatively of can arranging in pairs or groups, but not the display of polarized light type (for example plasma or OLED) needs the rear polaroid of collocation.Active polarizing layer in the 3D LCD display, be and have the liquid crystal rotating layer that changes polarization direction, can be equipped with phase delay cell and polarisation unit in the front and back of active polarizing layer, as shown in Figure 1, the purpose of the active polarizing layer among the present invention is that pure left-eye image only has left eye to observe, pure eye image only has right eye to observe, and common subimage or the right and left eyes image is identical then all can be observed for two.Phase delay cell postpones to be circular polarization with linear polarization, to improve the visual angle of user when viewing and admiring stereoscopic display device.The light leak that rear polarizing layer is responsible for avoiding optical is to cause crosstalk (crosstalk) of right and left eyes picture signal.In addition, initiatively the design of polarizing layer must be primary with panel polarity and the collocation of 3D glasses.The 3D glasses of rotatory polarization or line polarisation are known technology, seldom explain at this.In another embodiment, above-mentioned disparity barrier, active lens, directive property backlight module or active polarizing layer can be commonly referred to as " initiatively controlling photosphere ", according to status signal with respectively by different modes control light to show left-eye image, eye image and common subimage, to reach 3D effect.
3 D image display method of the present invention can use the corresponding stereoscopic display device of previous embodiment, according to predetermined image player order (for example: L *→ S → R *→ S → L *→ S or L *→ S → R *→ L *→ S → R *) play.The flow chart of 3 D image display method of the present invention as shown in Figure 7, at step S700, common state generator 201 receives at least one left-eye image and eye image.At step S710, common state generator 201 produces a common subimage according to this left-eye image and this eye image, and the computational methods of common subimage can be with reference to previous embodiment.At step S720, the common state generator is according to predetermined image player order (L for example *→ S → R *→ S → L *→ S or L *→ S → R *→ L *→ S → R *), on a stereoscopic display device, play this left-eye image, this eye image and this common subimage.
The above, it only is preferred embodiment of the present invention, when not limiting scope of the invention process with this, the simple equivalence of namely generally doing according to claim of the present invention and invention description content changes and modifies, and all still belongs in the scope that patent of the present invention contains.Arbitrary embodiment of the present invention or claim must not reached whole purpose disclosed in this invention or advantage or characteristics in addition.In addition, summary part and title only are the usefulness in order to auxiliary patent document search, are not to limit interest field of the present invention.

Claims (15)

1.一种立体图像显示方法，包括：1. A stereoscopic image display method, comprising: 接收一立体图像信息；receiving a stereoscopic image information; 依据该立体图像信息，产生一左眼图像、一右眼图像及一共同子图像，其中该共同子图像还包括该左眼图像及该右眼图像的共同部分；以及generating a left-eye image, a right-eye image, and a common sub-image according to the stereoscopic image information, wherein the common sub-image also includes a common portion of the left-eye image and the right-eye image; and 依据预定的一图像播放顺序，于一立体图像显示装置上播放该左眼图像、该右眼图像及该共同子图像。Playing the left-eye image, the right-eye image and the common sub-image on a stereoscopic image display device according to a predetermined image playing sequence. 2.如权利要求1所述的立体图像显示方法，其中该图像播放顺序为该左眼图像、该共同子图像、该右眼图像及该共同子图像，或该左眼图像、该共同子图像及该右眼图像。2. The stereoscopic image display method according to claim 1, wherein the image playback sequence is the left-eye image, the common sub-image, the right-eye image and the common sub-image, or the left-eye image and the common sub-image and the right-eye image. 3.如权利要求1所述的立体图像显示方法，其中产生该共同子图像的步骤还包括：3. The stereoscopic image display method as claimed in claim 1, wherein the step of generating the common sub-image further comprises: 计算该左眼图像及该右眼图像的一交集部分，且该共同子图像还包括该交集部分。An intersection portion of the left-eye image and the right-eye image is calculated, and the common sub-image further includes the intersection portion. 4.如权利要求1所述的立体图像显示方法，其中产生该共同子图像的步骤还包括：4. The stereoscopic image display method as claimed in claim 1, wherein the step of generating the common sub-image further comprises: 计算该左眼图像及该右眼图像中的一特征值，当该特征值小于一预定值，则判断该特征值所对应的一子图像为该共同子图像的一部分；calculating a feature value in the left-eye image and the right-eye image, and determining that a sub-image corresponding to the feature value is a part of the common sub-image when the feature value is less than a predetermined value; 其中该特征值包含一像素灰阶值差值、一像素亮度值以及一色差值中的至少其一。Wherein the feature value includes at least one of a pixel gray scale value difference, a pixel brightness value and a color difference value. 5.如权利要求1所述的立体图像显示方法，其中该立体图像信息还包括一2D图像及所对应的一深度图像，该深度图像具有多个深度，且在产生该共同子图像的步骤还包括：5. The stereoscopic image display method according to claim 1, wherein the stereoscopic image information further comprises a 2D image and a corresponding depth image, the depth image has multiple depths, and the step of generating the common sub-image also includes include: 依据该2D图像及该深度图像，产生对应于该深度图像的一左眼图像及一右眼图像；以及generating a left-eye image and a right-eye image corresponding to the depth image according to the 2D image and the depth image; and 判断在该深度图像中的所述多个深度在一特定深度范围所对应的该左眼图像及该右眼图像为该共同子图像。It is determined that the left-eye image and the right-eye image corresponding to the plurality of depths in a specific depth range in the depth image are the common sub-image. 6.如权利要求1所述的立体图像显示方法，还包括：6. The stereoscopic image display method as claimed in claim 1, further comprising: 对该左眼图像及该右眼图像使用一第一图像设定档，并对该共同子图像使用一第二图像设定档。A first image profile is used for the left-eye image and the right-eye image, and a second image profile is used for the common sub-image. 7.如权利要求1所述的立体图像显示方法，其中于产生该共同子图像的步骤之后还包括：7. The stereoscopic image display method according to claim 1, further comprising: after the step of generating the common sub-image: 产生对应于该左眼图像、该右眼图像及该共同子图像的一状态信号，其中该状态信号还对应于该图像播放顺序；以及generating a status signal corresponding to the left-eye image, the right-eye image and the common sub-image, wherein the status signal also corresponds to the image playback order; and 使用该状态信号以控制该立体图像显示装置中的一主动控光层；using the state signal to control an active light control layer in the stereoscopic image display device; 其中该主动控光层为一主动光指向层、一主动偏光层或一指向性背光模块。Wherein the active light control layer is an active light directing layer, an active polarizing layer or a directional backlight module. 8.如权利要求1所述的立体图像显示方法，其中该立体图像显示装置还包括一快门眼镜，其具有一左眼镜片及右眼镜片，以及该方法还包括：8. The stereoscopic image display method as claimed in claim 1, wherein the stereoscopic image display device further comprises a shutter glasses having a left eye glass and a right eye glass, and the method further comprises: 当该3D显示装置播放该左眼图像，仅开启该左眼镜片以观赏该左眼图像；When the 3D display device plays the left-eye image, only the left-eye lens is turned on to watch the left-eye image; 当该3D显示装置播放该右眼图像，仅开启该右眼镜片以观赏该右眼图像；以及When the 3D display device plays the right-eye image, only the right-eye lens is turned on to watch the right-eye image; and 当该3D显示装置播放该共同子图像，同时开启该左眼镜片及该右眼镜片以观赏该共同子图像。When the 3D display device plays the common sub-image, simultaneously open the left-eye glass and the right-eye glass to view the common sub-image. 9.一种图像时序产生器，包括：9. An image timing generator, comprising: 一共同状态产生器，用以接收一立体图像信息，并依据该立体图像信息，以产生一左眼图像、一右眼图像及一共同子图像，其中该共同子图像还包括该左眼图像及该右眼图像的共同部分；以及A common state generator is used to receive a stereoscopic image information, and generate a left-eye image, a right-eye image and a common sub-image according to the stereoscopic image information, wherein the common sub-image also includes the left-eye image and the common part of the right-eye image; and 一图像控制器，用以依据一图像播放顺序，于一立体图像显示装置上播放该左眼图像、该右眼图像及该共同子图像。An image controller is used for displaying the left-eye image, the right-eye image and the common sub-image on a stereoscopic image display device according to an image display sequence. 10.如权利要求9所述的图像时序产生器，其中该图像播放顺序为该左眼图像、该共同子图像、该右眼图像及该共同子图像，或该左眼图像、该共同子图像及该右眼图像。10. The image timing generator as claimed in claim 9, wherein the image playing sequence is the left-eye image, the common sub-image, the right-eye image and the common sub-image, or the left-eye image and the common sub-image and the right-eye image. 11.如权利要求9所述的图像时序产生器，其中该共同状态产生器还计算该左眼图像及该右眼图像的一交集部分，且该共同子图像还包括该交集部分。11. The image timing generator as claimed in claim 9, wherein the common state generator further calculates an intersection of the left-eye image and the right-eye image, and the common sub-image further includes the intersection. 12.如权利要求9所述的图像时序产生器，其中该共同状态产生器还计算该左眼图像及该右眼图像中的一特征值，当该特征值小于一预定值，则判断该特征值所对应的一子图像为该共同子图像的一部分；其中该特征值包含一像素灰阶值差值、一像素亮度值以及一色差值中的至少其一。12. The image timing generator as claimed in claim 9, wherein the common state generator also calculates a feature value in the left-eye image and the right-eye image, and when the feature value is less than a predetermined value, it is judged that the feature A sub-image corresponding to the value is a part of the common sub-image; wherein the feature value includes at least one of a pixel grayscale value difference, a pixel brightness value, and a color difference value. 13.如权利要求9所述的图像时序产生器，其中该共同状态产生器还接收具有多个深度且对应于该左眼图像及该右眼图像的一深度图像，并判断该深度图像中的所述多个深度在一特定深度范围所对应的该左眼图像及该右眼图像为该共同子图像。13. The image timing generator as claimed in claim 9, wherein the common state generator also receives a depth image having a plurality of depths corresponding to the left-eye image and the right-eye image, and determines the depth image in the depth image The left-eye image and the right-eye image corresponding to the plurality of depths in a specific depth range are the common sub-image. 14.如权利要求9所述的图像时序产生器，其中该共同状态产生器还对该左眼图像及该右眼图像使用一第一图像设定档，并对该共同子图像使用一第二图像设定档。14. The image timing generator as claimed in claim 9, wherein the common state generator also uses a first image profile for the left-eye image and the right-eye image, and uses a second image profile for the common sub-image. image profile. 15.如权利要求9所述的图像时序产生器，还包括：15. The image timing generator as claimed in claim 9, further comprising: 一状态控制器，用以产生对应于该左眼图像、该右眼图像及该共同子图像的一状态信号，其中该状态信号还对应于该图像播放顺序，且该状态控制器还使用该状态信号以控制该立体图像显示装置中的一主动控光层；A state controller is used to generate a state signal corresponding to the left-eye image, the right-eye image and the common sub-image, wherein the state signal also corresponds to the image playing sequence, and the state controller also uses the state signal to control an active light control layer in the stereoscopic image display device; 其中该主动控光层为一主动光指向层、一主动偏光层或一指向性背光模块。Wherein the active light control layer is an active light directing layer, an active polarizing layer or a directional backlight module.
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