CN1254773C - Device and method for generating interleave type stereo image - Google Patents
Device and method for generating interleave type stereo image Download PDFInfo
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- CN1254773C CN1254773C CN 02121909 CN02121909A CN1254773C CN 1254773 C CN1254773 C CN 1254773C CN 02121909 CN02121909 CN 02121909 CN 02121909 A CN02121909 A CN 02121909A CN 1254773 C CN1254773 C CN 1254773C
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Abstract
The present invention relates to a device for generating an interleave stereoscopic image, which mainly comprises a stereoscopic image engine, an alternative datum processor and a counter, wherein a contractible left eye image and a contractible right eye image of a stereoscopic image are generated by the stereoscopic image engine based on video source data, wherein the size of the contractible left eye image and the contractible right eye image are contracted compared with the video source data in vertical direction. The contractible left eye image and the contractible right eye image are stored in two adjacent storage sections by the interleave datum processor, and the two adjacent storage sections are scanned when the stereoscopic image is displayed. The counter is used for controlling column numbers of a display region, which enables each column of the contractible left eye image and the contractible right eye image to reach the display region in an interleave mode. The present invention also discloses a method for generating the interleave stereoscopic image.
Description
Technical field
The present invention relates to a kind of generation device and method of stereopsis, particularly a kind of generation device of interleave type stereo image and method.
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.
3D three-dimensional display (3D stereo display) is to have the mode of dwindling left-eye images and dwindling right-eye image of a differential seat angle to allow images of left and right eyes see respectively, allows the audience see three-dimensional image.For reaching this purpose, a kind of practice is dwindled left-eye images and is dwindled right-eye image for allowing display alternately show, the audience then puts on a liquid crystal glasses (LCD shutter glasses), its left and right sides eyeglass alternately allows light to pass through, and the vertical flyback (vertical retrace) of action of switching and display is synchronous.So, after the frequency height that switches arrived a certain degree, the audience can watch three-dimensional image.
Need arithmetic capability and bigger image storage area faster owing to show stereopsis, therefore in the prior art, multiple technologies are developed, with the data operation speed of quickening stereopsis, or reduce the required storage space of demonstration stereopsis.For example, staggered display technique (interlace display technique) will be dwindled the odd column that left-eye images is shown in display, dwindles the even column that right-eye image then is shown in display.So, dwindle half that left-eye images and the data volume of dwindling right-eye image all can be reduced to whole image originally.
Please refer to Fig. 1, with resolution be 10 * 10 display 8 (promptly, display frame always has 10 row) for example, when the staggered display technique of utilization, it is 10 * 5 dwindle left-eye images 11 and dwindle right-eye image 12 that video memory (video memory) 1 has stored two image data sizes.When left-eye images was dwindled in demonstration, each row that dwindles left-eye images 11 were shown in the 1st, 3,5,7 and 9 of display respectively and list, and the 2nd, 4,6,8 and 10 row then can be blank.Similarly, when right-eye image was dwindled in demonstration, each row that dwindles right-eye image 12 were shown in the 2nd, 4,6,8 and 10 of display respectively and list, and the 1st, 3,5,7 and 9 row can be blank.Staggered display technique still has multiple different embodiment, for example row blank (line-blanking) and dual (sync-doubling) synchronously etc.
Yet, in the prior art, when showing the 3D image, dwindle left-eye images and dwindle right-eye image processing in advance with staggered display technique.When desiring to produce the 3D stereopsis in real time and apace, when for example producing each page frame of 3D animation continuously, use software to realize that staggered display technique has reaction velocity and crosses the problem that causes film flicker (flickering) slowly.Therefore, how accelerating the real-time processing speed of staggered display technique, has been one important topic to be solved to be arranged.
Summary of the invention
At the problems referred to above, generation device and the method for purpose of the present invention for a kind of interleave type stereo image is provided, it can accelerate the real-time processing speed of interleave type stereo image, reduces storer required when showing the 3D stereopsis simultaneously.
For reaching above-mentioned purpose, the generation device of complying with interleave type stereo image of the present invention mainly comprises a stereopsis engine, an intercrossed data processor and a counter.The stereopsis engine produces one of a stereopsis based on a video source data and dwindles left-eye images and and dwindle right-eye image, dwindles left-eye images and to dwindle right-eye image size in vertical direction reduced compared to video source data.The intercrossed data processor will dwindle left-eye images and be stored in the two adjacent storage sections with dwindling right-eye image, and scan this two storages sections when showing stereopsis.The column number of counter controls one viewing area makes and dwindles left-eye images and can arrive at the viewing area in staggered mode with each row that dwindles right-eye image.
Dwindle left-eye images and dwindle right-eye image and can be reduced become half of the size of viewing area on vertical direction in the size on the vertical direction.Dwindle left-eye images with dwindle right-eye image in the size on the horizontal direction then can with viewing area measure-alike on horizontal direction.
The generation device of interleave type stereo image can also comprise a memory storage, and its storage is aforesaid to be dwindled left-eye images and dwindle right-eye image.This memory storage can have two page frame buffer zones, dwindling left-eye images and dwindling right-eye image during one stores and shows at present, and another then stores dwindling left-eye images and dwindling right-eye image of then showing.Memory storage can adopt dynamic RAM (DRAM) or Synchronous Dynamic Random Access Memory (SDRAM) etc.
The viewing area can be positioned at a display that is provided with little delayer (micro-retarder).Little delayer makes the odd column of viewing area different with the polarised direction of even column.So, see through the different polarization glasses of a left and right sides eyeglass polarised direction, audience's right and left eyes can be seen different images, that is, left eye is only seen left-eye images, and right eye is only seen right-eye image.
According to the production method of interleave type stereo image of the present invention, the dwindling left-eye images and dwindle right-eye image and after generation, be stored in the two adjacent storage sections an of stereopsis.When showing stereopsis, this two storages sections is scanned.By controlling a column number of a viewing area, method provided by the present invention makes dwindles left-eye images and dwindles respectively being listed as and can arriving at the viewing area with interlace mode of right-eye image.
Before beginning to scan the storage sections, the counter of control column number is made zero.Before demonstration was dwindled left-eye images or dwindled wherein row of right-eye image, register was then added one.
When memory storage had two page frame buffer zones, before preparing stereopsis, method provided by the present invention can prerequisitely fix on the stereopsis in which page frame buffer zone storage processing.Behind the end of scan of storage sections, method provided by the present invention also can judge whether to switch to another page frame buffer zone.
Because the present invention realizes the demonstration of interleave type stereo image with the framework of hardware, and by left-eye images and right-eye image are stored in adjacent storer sections, and the mode of column number of control viewing area is handled and is shown stereopsis, so the efficient of image processing and demonstration can be raised, and has reduced the use amount of storer simultaneously.
Description of drawings
The present invention is described in detail below in conjunction with drawings and Examples:
Fig. 1 is a synoptic diagram, shows to use staggered display technique to show the example of stereopsis in the prior art;
Fig. 2 is a calcspar, shows the structure according to the interleave type stereo image generation device of preferred embodiment of the present invention;
Fig. 3 is a synoptic diagram, shows according in the preferred embodiment of the present invention the process that interleave type stereo image produces;
Fig. 4 is a process flow diagram, in the generation of demonstration according to the interleave type stereo image of preferred embodiment of the present invention, stores the flow process of stereopsis to memory storage;
Fig. 5 is a process flow diagram, in the generation of demonstration according to the interleave type stereo image of preferred embodiment of the present invention, shows the flow process of stereopsis to display.
Symbol description among the figure:
1 memory storage
11 dwindle left-eye images
11a dwindles left-eye images
11b dwindles left-eye images
12 dwindle right-eye image
12a dwindles right-eye image
12b dwindles right-eye image
14 video source datas
2 storage controllers
3 stereopsis engines
4 intercrossed data processors
The flow process that is stored to memory storage of 401～405 stereopsis
The flow process that exports display to of 501～511 stereopsis
6 counters
8 displays
81 little delayers
9 polarization glasses
Embodiment
Hereinafter with reference to relevant drawings, generation device and method according to the interleave type stereo image of preferred embodiment of the present invention are described, wherein components identical will be illustrated with identical reference marks.
Please refer to Fig. 2, generation device according to the interleave type stereo image of preferred embodiment of the present invention is implemented in the computer system, and mainly comprises a memory storage 1, a storage controller 2, a stereopsis engine (3D graphics engine) 3 and one intercrossed data processor 4.This device cooperates with a display 8 and polarization glasses (polarized glasses) 9.Display 8 is provided with a little delayer (micro-retarder) 81.
Data access in the storage controller 2 control store devices 1 with move action, it can accept the also request of other element of decipher (interpret), and confirm the address of data in memory storage, so that by the memory storage reading of data, or write data to memory storage.
The stereopsis engine 3 receives via the video source data (video sourcedata) that bus transmitted, and is converted into and has dwindling left-eye images and dwindling right-eye image of differential seat angle.The stereopsis engine 3 can be and is generally positioned on the display card, in order to handling the microprocessor of 3D figure, or has the software or the hardware module of similar functions.
In this enforcement, the screen of display 8 is provided with a little delayer (micro retarder) 81, makes that odd column is different with the polarised direction of even column on the screen of display.When watching the shown picture of display, the audience has on polarization glasses (polarized glasses) 9.The polarised direction difference of the left and right sides eyeglass of polarization glasses 9 makes audience's left eye only receive the image of odd column, and right eye only receives the image of even column.Be noted that display 8 is the LCD display of the little delayer of tool, and select the analog or digital input signal according to the specification of LCD display itself.
Intercrossed data processor 4 will dwindle left-eye images and dwindle right-eye image through storage controller 2 and be stored in two adjacent storage sections.Please refer to Fig. 3, in the present embodiment, when producing stereopsis, half that the physical dimension of video source data 14 is in vertical direction can first reduced one-tenth original.So when generation was dwindled left-eye images 11 and dwindled right-eye image 12, what produced dwindled left-eye images 11 and dwindles half that right-eye image 12 size in vertical direction can only have video source data 14.Intercrossed data processor 4 can will dwindle left-eye images 11 and dwindle right-eye image 12 and be stored in one of two page frame buffer zones of memory storage 1, and is stored in two adjacent storage sections.
When image output during, owing to dwindle left-eye images 11 and dwindle right-eye image 12 and be stored in the adjacent storage sections, so dwindle left-eye images 11 and dwindle right-eye image 12 and can be read in the mode of interlocking to the viewing area of display 8.That is when first of scanning page frame buffer zone was listed as, first row that dwindle left-eye images 11 can be scanned earlier, and first row that then dwindle right-eye image 12 can be scanned.So, when outputing to display 8, first row of viewing area can show first row that dwindle left-eye images 11 on the display 8, and the secondary series of viewing area then shows first row that dwindle right-eye image 12 on the display 8.In like manner, when scanning the secondary series of page frame buffer zone, the secondary series that dwindles left-eye images 11 can be scanned earlier, and the secondary series that then dwindles right-eye image 12 can be scanned.So, when outputing to display 8, the 3rd row of viewing area can show the secondary series that dwindles left-eye images 11 on the display 8, and the 4th row of viewing area then show the secondary series that dwindles right-eye image 12.
When scanning page frame buffer zone, the column number that the present display of counter 6 controls 8 is shown makes that (first-out) image data that transmits of order correctly is shown in display 8 for FIFO, first-in according to first-in first-out.
Behind each row that has scanned the page frame buffer zone, the shown picture in viewing area promptly as shown in Figure 3, odd column shows each row that dwindles left-eye images 11, even column then shows each row that dwindles right-eye image 12.As discussed previously, cooperate little delayer 81 and polarization glasses 9, audience's left eye can only receive the image of odd column, and right eye then only receives the image of even column.So, the audience will perceive the image of a solid.
Please refer to Fig. 4, when receiving video source data, the stereopsis engine can dwindle video source data physical dimension in vertical direction earlier and become half original (step 401), and then, produce one of a stereopsis and dwindle left-eye images and and dwindle right-eye image (step 403) according to the geological information in the video source data.Because when producing stereopsis, video source data physical dimension in vertical direction can be reduced, is the image that has dwindled so dwindle left-eye images and dwindle right-eye image.
Because in present embodiment, the page frame buffer zone is to take the double buffering framework, so before generation is dwindled left-eye images and dwindled right-eye image, need determine in which page frame buffer zone, to store the stereopsis (step 402) in handling.For example, if the stereopsis that is showing is by page frame buffer zone A output, then the stereopsis engine 3 can be stored in the image data in handling among the page frame buffer zone B.After the image data among the page frame buffer zone B disposed, display 8 can be exported the image data among the page frame buffer zone B.This moment, the stereopsis engine 3 can be with the image data in handling then be stored among the page frame buffer zone A.
After having determined to store the page frame buffer zone of image data, dwindling left-eye images and dwindling right-eye image and promptly be stored in the storage sections adjacent in the page frame buffer zone (step 404) in the processing.Then, after the factors such as renewal speed of coordination display,, then get back to step 401, otherwise finish the preparation flow process (step 405) of page frame if desire is handled next page frame.
Please refer to Fig. 5, when showing a stereopsis, at first register can be made zero (step 501), then since the reference position scanning (step 502) of a page frame buffer zone according to the generation device of the interleave type stereo image of preferred embodiment of the present invention.Because the left-eye images of dwindling of a stereopsis is to be stored in the adjacent storage sections with dwindling right-eye image, so when first of scanning page frame buffer zone was listed as, first row that dwindle left-eye images can be read in regular turn with first row that dwindle right-eye image.At this moment, earlier register is added one (step 503) and makes its numeral become one, and be shown in first row (step 504) of display according to first row that the numeral of register will be dwindled left-eye images by zero; And then register is added one (step 505) make its numeral become two, and be shown in the secondary series (step 506) of display according to first row that the numeral of register will be dwindled right-eye image by one.
Behind first row of scanned page frame viewing area, because the scanning of page frame buffer zone does not finish (step 507) as yet, so the next column of page frame buffer zone, promptly secondary series can continue to be scanned (step 510), and again register is added one, make the numeral of register become three by two.So,, and control the demonstration columns of display, dwindle left-eye images and dwindle right-eye image and can be shown on the display by the staggered mode of row with register by each row of scanning page frame buffer zone.
If the page frame buffer zone is the end of scan, then judge whether to switch to another page frame buffer zone (step 508).If dwindling left-eye images and dwindling right-eye image in another page frame buffer zone is ready, then carry out the change action (step 511) of page frame buffer zone, for example, the memory storage address pointer of initial scanning is pointed to the start address of another page frame buffer zone.
If present page frame buffer zone is been scanned, do not switch to another page frame buffer zone again, then judge whether to have dialled to put to finish.If do not switch to the reason of another page frame buffer zone, be that stored data have been the data of last page frame in the present page frame buffer zone, then finish whole flow process.If do not switch to the reason of another page frame buffer zone, be that the data in next page frame buffer zone are still unripe, dwindling left-eye images and dwindling right-eye image in the then present page frame buffer zone will be shown in display once more.
According to present embodiment, put a plurality of page frames continuous dialling, for example to dial when putting animation, the flow process of above-mentioned Fig. 4 and Fig. 5 may be carried out simultaneously.In other words, the production method of the disclosed interleave type stereo image of present embodiment is simultaneously prepared the stereopsis data at a page frame buffer zone, and shows that image data in another page frame buffer zone is to display.So, can accelerate the processing speed of image, reduce in the generation probability of dialling picture delay when putting animation.
Be noted that those skilled in the art carry out the modification and the change of various equivalences to foregoing, and do not exceed spirit of the present invention and category.For example, the generation device of interleave type stereo image provided by the present invention also may be implemented in any electrical appliance with image Presentation Function of televisor, electronic game machine or other.In addition, in the above-described embodiment, memory storage is to adopt the double buffering structure.Yet those skilled in the art also can adopt other buffer zone structure, for example use single page frame buffer zone to show stereopsis.
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 the scope of claim its equivalent modifications of carrying out or change.
Claims (21)
1. the generation device of an interleave type stereo image comprises:
One stereopsis engine, it produces one of a stereopsis based on a video source data and dwindles left-eye images and and dwindle right-eye image, and this dwindles left-eye images and this, and to dwindle right-eye image size in vertical direction reduced compared to this video source data;
One intercrossed data processor, it dwindles left-eye images and this with this and dwindles right-eye image and be stored in the two adjacent storage sections, and scans this storage sections when showing this stereopsis;
One counter, the column number that it controls a viewing area makes this dwindle left-eye images and this each row that dwindles right-eye image can arrive at this viewing area with interlace mode; And
One memory storage, it stores this and dwindles left-eye images and this dwindles right-eye image.
2. the generation device of interleave type stereo image as claimed in claim 1 is characterized in that: this dwindles left-eye images and dwindles right-eye image with this and become half of the size of this viewing area on vertical direction in the size on the vertical direction is reduced.
3. the generation device of interleave type stereo image as claimed in claim 1 is characterized in that: this dwindle left-eye images and this dwindle right-eye image in the size on the horizontal direction and this viewing area measure-alike on horizontal direction.
4. the generation device of interleave type stereo image as claimed in claim 1, it is characterized in that: this memory storage has a page frame buffer zone, and this dwindles left-eye images and this and dwindles right-eye image and be stored in this page frame buffer zone.
5. the generation device of interleave type stereo image as claimed in claim 1, it is characterized in that: this memory storage has two page frame buffer zones, dwindling left-eye images and dwindling right-eye image during one of this page frame buffer zone stores and shows at present, another of this page frame buffer zone store dwindling left-eye images and dwindling right-eye image of then showing.
6. the generation device of interleave type stereo image as claimed in claim 1 is characterized in that: also comprise: a storage controller, its control in this memory storage data access with move action.
7. the generation device of interleave type stereo image as claimed in claim 1, it is characterized in that: this memory storage comprises a dynamic RAM.
8. the generation device of interleave type stereo image as claimed in claim 1, it is characterized in that: this memory storage comprises a synchronous dynamic RAM.
9. the generation device of interleave type stereo image as claimed in claim 1, it is characterized in that: this viewing area is positioned at a display, and this display is provided with a little delayer, makes the odd column of this viewing area different with the polarised direction of even column.
10. computer system comprises:
One memory storage, it has at least one page frame buffer zone;
One storage controller;
One stereopsis engine, it produces one of a stereopsis based on a video source data and dwindles left-eye images and and dwindle right-eye image, and this dwindles left-eye images and this, and to dwindle right-eye image size in vertical direction reduced compared to this video source data size in vertical direction;
One intercrossed data processor, it sees through this storage controller and will dwindle left-eye images at this and dwindle right-eye image with this and be stored in two adjacent in this page frame buffer zone storage sections, and scans this storage sections when this stereopsis of demonstration; And
One counter, the column number that it controls a viewing area makes this dwindle left-eye images and this each row that dwindles right-eye image can arrive at this viewing area with interlace mode in through after the conversion of this numeral/digital quantizer.
11. computer system as claimed in claim 10 is characterized in that: the number of the page frame buffer zone that this memory storage had is two.
12. computer system as claimed in claim 10 is characterized in that: this memory storage comprises a dynamic RAM.
13. computer system as claimed in claim 10 is characterized in that: this memory storage comprises a synchronous dynamic RAM.
14. computer system as claimed in claim 10 is characterized in that: also comprise:
One display, this viewing area is positioned at this display, and this display is provided with a little delayer, makes the odd column of this viewing area different with the polarised direction of even column.
15. the production method of an interleave type stereo image comprises:
Produce one of a stereopsis based on a video source data and dwindle left-eye images and and dwindle right-eye image, this dwindles left-eye images and this, and to dwindle right-eye image size in vertical direction reduced compared to this video source data;
This is dwindled left-eye images and this dwindles right-eye image and is stored in the two adjacent storage sections; And
Scan this storage sections, and the column number by control one viewing area, each that makes this dwindle that left-eye images dwindles right-eye image with this is listed as and can arrives at this viewing area with interlace mode.
16. the production method of interleave type stereo image as claimed in claim 15 is characterized in that: this dwindles left-eye images and dwindles right-eye image with this and become half of the size of this viewing area on vertical direction in the size on the vertical direction is reduced.
17. the production method of interleave type stereo image as claimed in claim 15 is characterized in that: this dwindle left-eye images and this dwindle right-eye image in the size on the horizontal direction and this viewing area measure-alike on horizontal direction.
18. the production method of interleave type stereo image as claimed in claim 15 is characterized in that: also comprise:
The stereopsis of decision in which page frame buffer zone storage is handled.
19. the production method of interleave type stereo image as claimed in claim 15 is characterized in that: this column number is to control by a counter.
20. the production method of interleave type stereo image as claimed in claim 19 is characterized in that: this step of controlling this column number comprises:
Before beginning to scan this storage sections, this counter is made zero; And
Show this dwindle left-eye images maybe this dwindle wherein row of right-eye image before, this register is added one.
21. the production method of interleave type stereo image as claimed in claim 15 is characterized in that: this adjacent storage sections is arranged in a page frame buffer zone, and this method also comprises:
Behind the end of scan of this storage sections, judge whether to switch to another page frame buffer zone.
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| CN 02121909 CN1254773C (en) | 2002-05-27 | 2002-05-27 | Device and method for generating interleave type stereo image |
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| CN 02121909 CN1254773C (en) | 2002-05-27 | 2002-05-27 | Device and method for generating interleave type stereo image |
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| JP4361435B2 (en) * | 2004-07-14 | 2009-11-11 | 株式会社エヌ・ティ・ティ・ドコモ | Moving picture decoding method, moving picture decoding program, moving picture decoding apparatus, moving picture encoding method, moving picture encoding program, and moving picture encoding apparatus |
| CN102300103B (en) * | 2010-06-25 | 2013-08-14 | 深圳Tcl新技术有限公司 | Method for converting 2D (Two-Dimensional) content into 3D (Three-Dimensional) contents |
| CN102137268B (en) * | 2011-04-08 | 2013-01-30 | 清华大学 | Line-staggered and tessellated rendering method and device for three-dimensional video |
| CN102780901B (en) * | 2012-05-02 | 2017-04-12 | 新奥特（北京）视频技术有限公司 | Method for optimizing memory in three-dimensional (3D) television |
| CN103428463B (en) * | 2012-05-19 | 2016-10-12 | 腾讯科技（深圳）有限公司 | 3D video source stores method and apparatus and 3D video broadcasting method and device |
| CN105243999A (en) * | 2014-07-10 | 2016-01-13 | 捷达创新股份有限公司 | Driving display method of liquid crystal display |
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