CN1455339A - Control method and device of three-dimensional image display for non-stereo video source - Google Patents
Control method and device of three-dimensional image display for non-stereo video source Download PDFInfo
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- CN1455339A CN1455339A CN 02119015 CN02119015A CN1455339A CN 1455339 A CN1455339 A CN 1455339A CN 02119015 CN02119015 CN 02119015 CN 02119015 A CN02119015 A CN 02119015A CN 1455339 A CN1455339 A CN 1455339A
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Abstract
The control device comprises the memory, the read/write controller and the motion analyzer. The memory stores the current image, the previous image and the next image. The current image and the previous image are as the stereo image for the right and left eye images respectively. The read/write controller controls the write in address of the memory for current and previous images as well as the reading sequence of current and previous images. The motion analyzer calculates the next overall motion direction of the next image relative to the current image as well as compares the next overall motion direction with the previous overall motion direction of the current image relative to the previous image in order to control the action of the read/write controller to read/write memory. Relationships between current and next images as well as left and right eye images are changed along with relationship of horizontal direction between next and previous overall motion directions.
Description
Technical field
The present invention relates to a kind of control device and method of display, relate in particular to the control device and the method for the dimensional image display in a kind of non-three-dimensional video-frequency source (non-stereo video source).
Background technology
The human vision that why has solid, be to know extraneous scenery because human eyes can independently be examined separately, be the scenery that left eye is seen left eye, right eye is seen the scenery of right eye, gap on the angle is arranged between the two, then pass through the natural fusion (fusing) of brain again, can in brain, present three-dimensional scenery.
The generation of stereopsis (stereoscopic images) promptly utilizes similar principle.Independent separately by the image that allows images of left and right eyes see, holographic display device can allow audience's two arrive different images soon.For example, the image of right and left eyes alternately is presented on the display device, and cooperate synchro-shutter to view and admire device (Synchronized Shutter Viewer), the for example running of a crystal glasses (LC shutter glasses), when showing left-eye images, display device covers right eye, when the screen display right-eye image, cover left eye, can make left eye can only see the image of left eye, and right eye can only be seen the image of right eye.So go round and begin again, carry out Alternation Display with the speed that persists faster than human vision, holographic display device can make the audience perceive three-dimensional image.
Please refer to Fig. 1 and Fig. 2, a kind of existing stereopsis technology is in storer 1, and two memory block B1 and B2 are provided, with the buffer zone as the data of the data of depositing left-eye images and right-eye image.The picture that display device 8 is shown alternately corresponds to the memory block of depositing left-eye images and right-eye image, that is, and and one of them of memory block B1 and B2.Figure 1 shows that display device 8 shown pictures correspond to memory block B1,, Figure 2 shows that display device 8 shown pictures correspond to memory block B2, to show the situation of right-eye image to show the situation of left-eye images.When showing different pictures, a synchronous shutter is viewed and admired device (Synchronized Shutter Viewer) 9 need synchronously carry out change action, allows left-eye images only enter user's left eye, and right-eye image only enters user's right eye.
Please refer to Fig. 3, when video source was the video source of non-stereopsis, if desire shows stereopsis, holographic display device can be with continuous two pictures (frame) respectively as left-eye images and right-eye image.With Fig. 1 and Fig. 2 similarly, in the storer 1 shown in Figure 3 also with two memory block B1 and B2 with as buffer zone, but stored two pictures among buffer zone B1 and the B2 respectively.During stored image, picture F1 and F2 alternately are shown in display device 8 in showing memory block B1, with as left-eye images and right-eye image.And in showing memory block B2 during stored image, picture F2 and F3 can alternately be shown in display device 8, with as next left-eye images and right-eye image.
Owing to have small difference between two continuous pictures, therefore by this kind mode, for example cooperate synchro-shutter to view and admire device, holographic display device can make audience's left eye receive different images with right eye.When next picture, promptly picture F3 in memory block B2 ready after, holographic display device is changeable alternately to be shown in display device 8 with picture F2 among the memory block B2 and F3, and prepares next picture in memory block B1.So, can after the video source that reads non-stereopsis, dial continuously and put stereopsis.
Yet, above-mentioned group of problem of putting stereopsis, when changing for the moving direction when the object in the image, the audience may experience different 3-D effects suddenly.For example, if object is mobile from left to right originally, and the audience perceives " the place ahead " that object is positioned at display device, serves as reasons rightly toward left back when object changes moving direction, and it is that the position is at display device " rear " that the audience can perceive object suddenly.This problem can cause the audience can't experience consistent 3-D effect, causes audience's puzzlement.
Summary of the invention
At the problems referred to above, the purpose of this invention is to provide the control device and the method for the dimensional image display in a kind of non-three-dimensional video-frequency source, it can make the audience can experience consistent 3-D effect when watching stereopsis.
For reaching above-mentioned purpose, the control device of the dimensional image display in non-three-dimensional video-frequency of the present invention source mainly comprises a storer, a read-write controller (read/write controller) and a motion analyzer (motion analyzer).Next picture of this present picture in the last picture of memory storage one present picture, this present picture and the preparation.At present picture and last picture are respectively as a right-eye image and a left-eye images of a stereopsis.Read-write controller is controlled present picture and next picture in the address that writes of storer, and reading in proper order of picture and last picture at present.Motion analyzer then calculates next picture next total direction of motion (overall motion direction) with respect to present picture, and next total direction of motion of comparison and the last total direction of motion of present picture with respect to last picture, with the action of control read-write controller read-write memory, make that the corresponding relation between present picture and next picture and right-eye image and the left-eye images can change along with the relation of the horizontal direction of next total direction of motion and last total direction of motion.
In addition, the control method of the dimensional image display in non-three-dimensional video-frequency of the present invention source is to calculate next picture of a present picture in non-three-dimensional video-frequency source earlier with respect to next total direction of motion of present picture.Then, relatively next total direction of motion and present picture are with respect to a last total direction of motion of the last picture of present picture, with according to a comparative result, determine present picture and next picture and as a right-eye image of a stereopsis and the corresponding relation between the left-eye images.
One embodiment of the invention, storer can have one first buffer zone and one second buffer zone.First buffer zone stores last picture and present picture, and second buffer zone then stores present picture and next picture.In this example, read-write controller writes the address by changing present picture and next picture in second buffer zone, change the corresponding relation between present picture and next picture and right-eye image and the left-eye images.
According to another embodiment of the present invention, storer can have one first buffer zone, one second buffer zone and one the 3rd buffer zone.First buffer zone stores last picture, and second buffer zone stores present picture, and the 3rd buffer zone then stores next picture.In this example, read-write controller changes the corresponding relation between present picture and next picture and right-eye image and the left-eye images by changing the order that reads of present picture and next picture.
According to the present invention, when the moving direction of the object in the image changed, the corresponding relation of picture and right and left eyes image can adjust according to the conversion of moving direction, so the audience can experience consistent 3-D effect.
Description of drawings
Hereinafter with reference to relevant drawings, illustrate that wherein components identical will be illustrated with identical reference marks according to the control device and the method for the dimensional image display in the non-three-dimensional video-frequency source of preferred embodiment of the present invention.
Fig. 1 and Fig. 2 are synoptic diagram, show the technology of existing demonstration stereopsis;
Fig. 3 is a synoptic diagram, shows the existing technology that is shown stereopsis by non-three-dimensional video-frequency source;
Fig. 4 is a calcspar, and demonstration is according to the structure of the control device of the dimensional image display in the non-three-dimensional video-frequency source of preferred embodiment of the present invention;
Fig. 5 is a process flow diagram, and demonstration is according to the flow process of the control method of the dimensional image display in the non-three-dimensional video-frequency source of preferred embodiment of the present invention;
Fig. 6 is a calcspar, shows in first aspect according to preferred embodiment of the present invention the structure of the control device of the dimensional image display in non-three-dimensional video-frequency source;
Fig. 7 A and 7B are synoptic diagram, are presented in first aspect according to preferred embodiment of the present invention data-moving and the situation that writes in the storer;
Fig. 8 is a calcspar, shows in second aspect according to preferred embodiment of the present invention the structure of the control device of the dimensional image display in non-three-dimensional video-frequency source;
Fig. 9 A and 9B are synoptic diagram, are presented in second aspect according to preferred embodiment of the present invention the situation that data write and read in the storer;
Figure 10 is a synoptic diagram, is presented at according in the preferred embodiment of the present invention the account form of total direction of motion.
Symbol description among the figure:
1 storer
2 Memory Controllers
3 code translators
4 read-write controllers
41 writing controllers
42 Read Controllers
5 motion analyzers
50 ~ 59 controlled step
6DAC
8 display device
9 synchro-shutters are viewed and admired device
B
1Buffer zone
B
2Buffer zone
B
3Buffer zone
F
I-1Last picture
F
iPresent picture
F
I+1Next picture
Embodiment
Please refer to Fig. 4, control device according to the dimensional image display of preferred embodiment of the present invention has comprised a storer 1, a Memory Controller 2, a code translator (decoder) 3, a read-write controller (read/write controller) 4, one motion analyzer (motion analyzer) 5 and one digital/analog converter (DAC, digit-to-analog converter) 6.After reading a non-three-dimensional video-frequency source, the simulating signal that can export stereopsis according to the control device of the dimensional image display of preferred embodiment of the present invention is to display device 8, and export a synchronous signal to synchronously shutter view and admire device 9.
Data access in Memory Controller 2 control stores 1 with move action.It can accept and explain the request of (interpret) other element, confirms the address of data in memory storage, so that by the memory storage reading of data, or writes data to memory storage.
The image data that digital/analog converter 6 will be stored in the storer is converted to the simulation kenel by digital kenel, to be output on the display device 8, send a synchronous signal simultaneously and give synchro-shutter and view and admire device 9, so that the left and right alternately guiding action that the vertical more new element of the screen of display device 8 and synchro-shutter are viewed and admired device 9 is synchronous.
Motion analyzer 5 can be a software module, or is one to be integrated in hardware chip or the circuit in video card or the chipset, and it analyzes next picture F
I+1F with respect to present picture
iRelativeness, to obtain next total direction of motion (overall motion direction).For example, please refer to Figure 10, is example with the video archive of MPEG specification, when code translator 3 to its decoding when obtaining each picture, it can obtain each macroblock (macroblock) M in each picture
1To M
9Motion vector (motion vector) V1 to V with respect to the corresponding macroblock of previous picture
9So, the motion vector of each macroblock is average, can obtain next picture F
I+1With respect to present picture F
iNext total direction of motion V
0About process and the macroblock and the motion vector relevant information of MPEG decoding, owing to be those skilled in the art, so repeat no more in this.
Total direction of motion can be used to judge present picture F
iIn all objects moving situation roughly.Whether change by observing total direction of motion component direction in the horizontal direction, motion analyzer 5 can inform whether read-write controller 4 will switch the corresponding relation of present picture and next picture and right-eye image and left-eye images.For example, if last picture is set to the left-eye images in the stereopsis, picture is set to the right-eye image in the stereopsis at present, when last total direction of motion component in the horizontal direction for left, next total direction of motion component in the horizontal direction is also left the time, picture can be set to the left-eye images in the stereopsis at present, and next picture then can be set to the right-eye image in the stereopsis, so that the audience experiences identical 3-D effect constantly.On the contrary, if next total direction of motion component in the horizontal direction changes into to the right, then motion analyzer 5 changeable read-write controller 4 read-write motion make present picture be set to the right-eye image in the stereopsis, and next picture is set to the left-eye images in the stereopsis.
Please refer to Fig. 5, when reading non-three-dimensional video-frequency source with the demonstration stereopsis, motion analyzer 5 can be in code translator 3 decodings with before obtaining next picture, calculate earlier next picture next total direction of motion (step 51) with respect to present picture, and the horizontal direction whether different (step 52) of next total direction of motion and last total direction of motion relatively.If it is identical, then when setting left-eye images and right-eye image, present picture is set at one (step 53) of pairing left-eye images of last picture and right-eye image, and next picture is set at one of pairing left-eye images of present picture and right-eye image (step 54).If it is different, then when setting left-eye images and right-eye image, present picture still is set at one of present pairing left-eye images and right-eye image (step 55), and next picture is set at one of pairing left-eye images of last picture and right-eye image (step 56).Solving next picture (step 57) afterwards, be about to present picture and be set at last picture, next picture is being set at present picture (step 58), and alternately showing new last picture and present picture (step 59) according to previous setting.If do not finish as yet (step 50), for example video archive does not finish as yet, then continues to handle next picture.
The embodiment of corresponding relation between two kinds of different set pictures and right and left eyes image below is described.Wherein, Fig. 6, Fig. 7 A and Fig. 7 B are depicted as first aspect, and Fig. 8, Fig. 9 A and Fig. 9 B those shown are second aspect.
Please refer to Fig. 6, in first aspect, storer 1 has two buffer zone B1 and B2.Buffer zone B1 stores last picture F
I-1With present picture F
i, buffer zone B2 then stores present picture F
iNext picture F with present picture
I+1Read-write controller 4 comprises a writing controller 41 and a Read Controller 42.Writing controller 41 in the motion analyzer 5 control read-write controllers 4 is to change the storage address of picture in storer 1.
In the buffer zone B1 and B2 of storer 1, the stored data of first half are set to left-eye images, the latter half of stored right-eye image that then is set to.Therefore, read-write controller 4 can be a first half or latter half of by changing the storage address of picture in buffer zone, changes the corresponding relation of picture and left-eye images and right-eye image.
Fig. 7 A shows the horizontal direction and the unaltered situation of total direction of motion.Shown in Fig. 7 A, last picture F
I-1Be set to left-eye images, be stored in the first half of buffer zone B1, at present picture F
iThen be set to right-eye image, be stored in buffer zone B1 latter half of.Because the horizontal direction of next total direction of motion is identical with the horizontal direction of last total direction of motion, so the writing controller 41 in the read-write controller 4 can be with present picture F
iMove the first half of buffer zone B2, and next picture F
I+1After decoding, can be stored in the latter half of of buffer zone B2.
Fig. 7 B then shows the situation that the horizontal direction of total direction of motion changes.Because the horizontal direction of next total direction of motion is different with the horizontal direction of last total direction of motion, so the writing controller 41 in the read-write controller 4 can be with present picture F
iMove the latter half of of buffer zone B2, and next picture F
I+1After decoding, can be stored in the first half of buffer zone B2, so that the audience experiences identical 3-D effect constantly.
Please refer to Fig. 8, in second aspect, storer 1 has three buffer zone B1, B2 and B3.Buffer zone B1 stores last picture F
I-1, buffer zone B2 stores present picture F
i, buffer zone B3 then stores next picture F
I+1With first aspect similarly, read-write controller 4 also comprises a writing controller 41 and a Read Controller 42.Read Controller 42 in the motion analyzer 5 control read-write controllers 4, reading in proper order when from storer 1, being read to change picture.
Fig. 9 A shows the horizontal direction and the unaltered situation of total direction of motion.Shown in Fig. 9 A, last picture F
I-1Be set to left-eye images, be stored among the buffer zone B1, at present picture F
iThen be set to right-eye image, be stored among the buffer zone B2.Because the horizontal direction of next total direction of motion is identical with the horizontal direction of last total direction of motion, so the Read Controller 42 in the read-write controller 4 can be at next picture F
I+1In buffer zone B3, behind decoded the finishing, the present picture that is stored among the buffer zone B2 is set at left-eye images, and will be stored in next picture among the buffer zone B3 and be set at right-eye image and reads.
Fig. 9 B then shows the situation that the horizontal direction of total direction of motion changes.Because the horizontal direction of next total direction of motion is different with the horizontal direction of last total direction of motion, so in buffer zone B3 behind decoded the finishing, the present picture that Read Controller 42 in the read-write controller 4 can will be stored among the buffer zone B2 is set at right-eye image, and will be stored in next picture among the buffer zone B3 and be set at left-eye images and read, so that the audience experiences identical 3-D effect constantly.
According to the present invention, because when the moving direction of the object in the image changed, the corresponding relation of picture and right and left eyes image can adjust according to the conversion of moving direction, the audience can experience consistent 3-D effect.
Be noted that those skilled in the art can carry out the modification and the change of various equivalences to it, and do not exceed spirit of the present invention and category.For example, when using two buffer zones, can adopt alternating expression (interleaved) or double (sync doubling) technology synchronously, with use that reduces storer or the display speed that speeds picture.
Therefore, the above only is an illustrative, but not is restricted.Anyly do not break away from spirit of the present invention and category, and, all should be contained in claims scope its equivalent modifications of carrying out or change.
Claims (18)
1. the control device of the dimensional image display in a non-three-dimensional video-frequency source is characterized in that, comprises:
One storer, it stores the last picture of a present picture, this present picture and next picture of the present picture in the preparation, and this present picture and last picture are respectively as a right-eye image and a left-eye images of a stereopsis;
One read-write controller, it controls this present picture and next picture in the address that writes of storer, and reading in proper order of picture and last picture at present; And
One motion analyzer, it calculates this next picture next total direction of motion with respect to this present picture, and next total direction of motion of comparison and the last total direction of motion of present picture with respect to last picture, to control the action of this read-write controller read-write memory, make the corresponding relation between this present picture and next picture and right-eye image and the left-eye images can be along with the relation of the horizontal direction of next total direction of motion and last total direction of motion and change.
2. the control device of the dimensional image display in non-according to claim 1 three-dimensional video-frequency source is characterized in that, also comprises: a code translator, it produces last picture, present picture and next picture from this non-three-dimensional video-frequency source.
3. the control device of the dimensional image display in non-according to claim 1 three-dimensional video-frequency source, it is characterized in that: this storer has one first buffer zone and one second buffer zone, this first buffer zone stores last picture and present picture, and this second buffer zone then stores present picture and next picture.
4. as the control device of the dimensional image display in non-three-dimensional video-frequency source as described in the claim 3, it is characterized in that: this read-write controller writes the address by changing present picture and next picture in second buffer zone, change the corresponding relation between this present picture and next picture and right-eye image and the left-eye images.
5. the control device of the dimensional image display in non-according to claim 1 three-dimensional video-frequency source, it is characterized in that: this storer has one first buffer zone, one second buffer zone and one the 3rd buffer zone, this first buffer zone stores last picture, second buffer zone stores present picture, and the 3rd buffer zone then stores next picture.
6. as the control device of the dimensional image display in non-three-dimensional video-frequency source as described in the claim 5, it is characterized in that: this read-write controller changes the corresponding relation between present picture and next picture and right-eye image and the left-eye images by changing the order that reads of present picture and next picture.
7. the control device of the dimensional image display in non-three-dimensional video-frequency as claimed in claim 1 source, it is characterized in that: this non-three-dimensional video-frequency source is the video archive of a MPEG specification, and this motion analyzer is the motion vector of each macroblock in average next picture, to obtain next total direction of motion.
8. the control method of the dimensional image display in a non-three-dimensional video-frequency source is characterized in that, comprises: next picture of a present picture that calculates this non-three-dimensional video-frequency source is with respect to next total direction of motion of present picture;
Relatively next total direction of motion and present picture are with respect to a last total direction of motion of the last picture of present picture; And
According to a comparative result of this comparison step, determine present picture and next picture and as a right-eye image of a stereopsis and the corresponding relation between the left-eye images.
9. as the control method of the dimensional image display in non-three-dimensional video-frequency source as described in the claim 8, it is characterized in that: it is to finish by changing present picture and next picture address that writes in storer that this corresponding relation deciding step comprises.
10. as the control method of the dimensional image display in non-three-dimensional video-frequency source as described in the claim 8, it is characterized in that: this corresponding relation deciding step is by changing present picture and next picture is finished from the order that storer reads.
11. the control method as the dimensional image display in non-three-dimensional video-frequency source as described in the claim 8 is characterized in that also comprise: decoding is to obtain next picture; And
Setting this present picture is last picture, and to set next picture be present picture.
12. control method as the dimensional image display in non-three-dimensional video-frequency source as described in the claim 8, it is characterized in that: this non-three-dimensional video-frequency source is the video archive of a MPEG specification, and calculation procedure is to finish by the motion vector of each macroblock in average next picture.
13. a computer system comprises:
One code translator, it produces the last picture of a last picture, this present picture from this non-three-dimensional video-frequency source and next picture of the present picture prepared, and present picture and last picture are respectively as a right-eye image and a left-eye images of a stereopsis;
One storer, it stores present picture, last picture and next picture;
One Memory Controller, the data access in its control store with move action;
One read-write controller, it controls present picture and next picture in the address that writes of storer, and reading in proper order of picture and last picture at present; And
One motion analyzer, it calculates next picture next total direction of motion with respect to present picture, and next total direction of motion of comparison and the last total direction of motion of present picture with respect to last picture, with the action of control read-write controller read-write memory, the corresponding relation between present picture and next picture and right-eye image and the left-eye images can be changed along with the relation of the horizontal direction of next total direction of motion and last total direction of motion.
14. as computer system as described in the claim 13, it is characterized in that: this storer has one first buffer zone and one second buffer zone, this first buffer zone stores last picture and picture at present, and second buffer zone then stores present picture and next picture.
15. as computer system as described in the claim 14, it is characterized in that: this read-write controller is to write the address by changing present picture and next picture in second buffer zone, changes the corresponding relation between present picture and next picture and right-eye image and the left-eye images.
16. as computer system as described in the claim 13, it is characterized in that: this storer has one first buffer zone, one second buffer zone and one the 3rd buffer zone, first buffer zone stores last picture, and second buffer zone stores present picture, and the 3rd buffer zone then stores next picture.
17. as computer system as described in the claim 16, it is characterized in that: this read-write controller is by changing the order that reads of present picture and next picture, changing the corresponding relation between present picture and next picture and right-eye image and the left-eye images.
18. as computer system as described in the claim 13, it is characterized in that: this non-three-dimensional video-frequency source is the video archive of a MPEG specification, and this motion analyzer is the motion vector of each macroblock in average next picture, to obtain next total direction of motion.
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| CN101995943B (en) * | 2009-08-26 | 2011-12-14 | 介面光电股份有限公司 | three-dimensional image interactive system |
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| CN101995943B (en) * | 2009-08-26 | 2011-12-14 | 介面光电股份有限公司 | three-dimensional image interactive system |
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