CN1580947A - System and method for generating amnibearing stereo digital image - Google Patents
System and method for generating amnibearing stereo digital image Download PDFInfo
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Abstract
The present invention relates to a system for producing omnibearing stereoscopic image and its method. Said system includes taking device with large aperture lens and built-in hemispheric lens grating, optical-electric converter equipment, image signal processing device and display device, in which the described image signal processing device can be used for processing image, and is characterized by that said processing device can make th marshalling sequences of X direction and Y direction of pixel in the image unit reversal, and can obtain a synthetic image identical to the shot image. Said invention also includes the correspondent method for producing omnibearing stereoscopic image.
Description
Technical field
The present invention relates to a kind of can produce simultaneously show scenery about and the system and method for the omnibearing stereo digital image of the stereoeffect on the both direction up and down.
Background technology
Stereo-picture typically refer to by additional optical lens grating or slit grating by one group of synthetic image of plane picture with horizontal parallax.When being in by different viewing angle, right and left eyes can be seen a pair of plane picture with left and right sides scape of different parallaxes respectively, produces the stereoeffect of scenery on left and right directions thus.
In the prior art, the process of utilizing additional grating to produce stereo-picture is basically, at first one group of plane picture with left and right sides different shooting angles is cut apart the vertical wire pixel of generation through optical segmentation or computer, according to the type sequence ground of grating the wire pixel is arranged again, and then be equipped with vertical slit grating or optics semicolumn lenticulation, thereby produce desired stereo-picture.When watching stereo-picture, the right and left eyes sight line is seen the pixel of a pair of left and right sides scenery respectively by grating, reaches the stereoeffect that on-the-spot scenery is watched in simulation thus.
When watching actual scenery, can optionally mobile viewing location and can obtain about and the omnibearing stereo perception of any one viewing location on the both direction up and down.But the shortcoming of utilizing the stereo-picture that vertical raster produces of prior art is the stereoeffect that can only produce the position, the left and right sides of scenery, promptly can only obtain the stereoeffect of single direction.
And, be stereoscopic photograph and the stereosopic printing image that adopts the sensitization mode according to the final products of the stereo-picture that prior art produced.
And the image pickup method of stereo-picture of the prior art is that employing has the camera of a plurality of camera lenses to take or mobile one-shot camera is repeatedly taken.
And in the prior art, the stereo-picture and the actual scenery that adopt the large aperture one-shot camera to take are that left and right directions is reverse.
Therefore, in the production process of the stereo-picture of prior art, equipment that is adopted and method all have suitable limitation, and especially the stereo-picture that is produced only has the stereoeffect of left and right directions and do not possess the stereoeffect of above-below direction, promptly is not omnibearing stereo-picture.
Summary of the invention
The object of the present invention is to provide a kind of can produce simultaneously show scenery about and the system and method for the omnibearing stereo digital image of the stereoeffect of both direction up and down, wherein He Cheng stereo-picture by scenery about and up and down the plane picture on the both direction with parallax form.
According to a kind of system that is used to produce plane omnibearing stereo image of the present invention, comprise: a filming apparatus that is equipped with a large aperture and a built-in dome lens grating, be used for scenery is taken to obtain to have the image with the shooting of the different parallaxes of Y direction at X, wherein, directions X is the horizontal direction in the image, and the Y direction is the vertical direction in the image; A photoelectric conversion device is used for the image transitions of described shooting is become image signals corresponding, and described built-in dome lens grating is stacked in the surface of this photoelectric conversion device and focuses on the imaging surface of described photoelectric conversion device; An image signal processing apparatus is used for described picture signal is handled, to draw synthetic picture signal according to the picture signal after handling; With, a display device, be used for described synthetic picture signal is shown, wherein said display device comprises another dome lens grating that is arranged on its place ahead, described another dome lens grating focuses on the display plane of described display device, be used to make shown image to become a synthetic stereoscopic image, wherein, described treating apparatus is to make the X of pixel and putting in order oppositely of Y direction in the corresponding image as unit of each dome lens grating with described built-in dome lens grating to described treatment of picture, and the acquisition image that synthesize identical with the image of described shooting.
In system according to the present invention, described photoelectric conversion device is a charge-coupled image sensor.
In system according to the present invention, described photoelectric conversion device and described built-in dome lens grating are formed on the same assembly.
In system according to the present invention, described built-in dome lens grating is made up of two semicolumn straight burr gratings.
In system according to the present invention, described filming apparatus is digital camera or Digital Video, or photographic camera.
In system according to the present invention, described display device is liquid crystal indicator or plasm display device or televisor.
In system according to the present invention, the pixel quantity of described another dome lens grating of pixel quantity of described synthetic stereo-picture equates or is unequal.
In system according to the present invention, described synthetic stereo-picture is rest image or live image.
In system according to the present invention, also comprise a digital-code printer, be used for described synthetic image directly is printed on the back side of a dome lens grating; Perhaps be used for described synthetic image directly is printed on a planar materials, adding a dome lens grating then.
In system according to the present invention, also comprise a printing machine, be used for described synthetic image directly is printed on the back side of a dome lens grating; Perhaps be used for described synthetic image directly is printed on a planar materials, adding a dome lens grating then.
In system according to the present invention, also comprise a memory storage, be used to store described synthetic image.
According to a kind of method that is used to produce the omnibearing stereo image of the present invention, may further comprise the steps: adopt one to be equipped with the filming apparatus of a large aperture and a built-in dome lens grating that scenery is taken, to obtain to have the image with the shooting of the different parallaxes of Y direction at X, wherein, directions X is the horizontal direction in the image, and the Y direction is the vertical direction in the image; The image transitions of described shooting is become image signals corresponding; Described picture signal is handled, to draw synthetic picture signal according to the picture signal after handling; With, described synthetic picture signal is shown as a synthetic stereoscopic image, wherein, be to make the X of pixel and putting in order oppositely of Y direction to described treatment of picture, and the acquisition synthetic image identical with the image of described shooting.
In the method according to the invention, the described step that picture signal is handled comprises: the image of taking is divided into the visual unit that equals each dome lens area of raster size through described built-in dome lens grating, wherein, the putting in order on X and Y direction of respective pixel in the corresponding visual unit in the image with described shooting of putting in order of each pixel in the described visual unit all is reverse; Reverse on X and Y direction to putting in order of each pixel in the visual unit that is obtained respectively, thus the composite image identical obtained with the image of described shooting.
Therefore, when watching stereo-picture produced according to the present invention, with viewing location or image relatively during move left and right, the left and right directions that can change scenery is the stereoeffect of X-axis, when viewing location and image are relatively moved up and down, the above-below direction that can change scenery is the stereoeffect of Y-axis, reaches the omnibearing stereoeffect in plane thus, watches on-the-spot true scenery the same seemingly.
Description of drawings
Be description of drawings of the present invention below.In the accompanying drawing:
Fig. 1 takes according to the large aperture camera lens of stereo-picture of the present invention and is equipped with the light path synoptic diagram of the digital code camera of dome lens grating;
The parallax that Fig. 2 produces when the scenery that adopts large aperture lens shooting different distance is shown;
Fig. 3 illustrates the parallax relation of diameter of lens and image;
Fig. 4 illustrates and shows the reverse three-dimensional composograph of scenery after camera lens and dome lens grating focus on again;
Fig. 5 illustrates the process that reverse three-dimensional composograph is reduced into the three-dimensional composograph of forward;
The flat image that Fig. 6 schematically illustrates the X of a scenery and Y-axis parallax rearranges a synthetic image;
Fig. 7 illustrates the display device of omnibearing stereo image.
Embodiment
Describe according to a preferred embodiment of the present invention below in conjunction with accompanying drawing.
Fig. 1 is the light path synoptic diagram that the stereocamera that utilizes the large aperture camera lens to cooperate the dome lens grating according to the present invention is taken the omnibearing stereo image.The implication of each Reference numeral among Fig. 1 is as follows: the 1st, and the large aperture camera lens; The 2nd, be stacked in the dome lens grating on the photoreceptor; The 3rd, photoreceptor; 4A, 4B and 4C represent by nearly scenery to different distance far away; 4a, 4b and 4c are respectively the focusedimages of 4A, 4B and 4C scenery, and they focus on different focal length 5A, 5B and 5C respectively.When camera lens 1 was focused at scenery 4B, focus 4b focused on focussing plane 5B.The light beam of Dui Jiao scenery 4A and 4C does not fail to focus on focussing plane 5B, about having in its dispersed light beam or the image luminous point of the different parallaxes of above-below direction, according to its crevice projection angle, by the dome lens optical axis disperse and sensitization sequentially in the zones of different of photoreceptor 3.Filming apparatus among Fig. 1 can be that digital camera also can be a Digital Video, or general photographic camera; Photoreceptor 3 also can be a photographic negative, captured image is through electronic scanning device and by numberization, image as unit under each dome lens is being divided into the detail drawing picture, and then is carrying out further Flame Image Process, concrete processing mode will be described in detail in conjunction with Fig. 5; And captured image can be that rest image also can be a live image.
The parallax that Fig. 2 produces when the scenery that adopts large aperture lens shooting different distance is shown.Referring to Fig. 2, when camera lens 1 was focused at scenery 4B, corresponding image 4b focused on the focussing plane 5B, and the image 4c of scenery 4C focuses on the place ahead of the focal length 5B that the sensitization plane is set, and the image 4a of scenery 4A focuses on the rear of the focal length 5B that the sensitization plane is set.The out-focus light beam of image 4a and 4c forms not the hot spot 6A and the 6C of the blurred picture that focuses on fully on the sensitization plane of focal length 5B, the diameter of hot spot 6A and 6C is based on the ratio of the distance of the diameter of lens aperture and scenery.Luminous point 6A is the maximum disparity of nearest scenery 4A, and luminous point 6C is the maximum disparity of scenery 4C farthest.
Fig. 3 illustrates the parallax relation of diameter of lens and image.Among Fig. 3, the image parallactic of out-of-focus scenery 4C at focal length 5B place is that the large aperture by camera lens 1 causes.This image parallactic is radially outwards launched by the center of camera lens.Among Fig. 3, mark D1 and D2 represent it is the different radii of camera lens, and mark P1 and P2 are the image spot radius of scenery 4C at focal length 5B place, also are the parallax value of scenery 4C simultaneously.Because camera lens is circular, so the section shape along diameter on its different directions is identical and overlaps.
Fig. 4 illustrates the situation that image that scenery forms by the dome lens grating is reversed.In Fig. 4, the shape of mark 8 indication scenery, the little pattern in the mark 9 indication scenery.Take into image 10 through camera lens 1, the mutual relationship of the big arrow points in the big arrow points in the image 10 and the mutual relationship of the arrow points of little pattern image 11 and the actual scenery 8 and the arrow points of little pattern 9 is identical.Image 10 is again by built-in dome lens grating 6, and wherein each dome lens changes the direction (but the shape of the general image 12 that is obtained is identical with image 10, does not change) of the little image 13 in its scope.The effect of built-in dome lens grating 6 is in order to obtain to have the visual unit of different parallaxes on X and Y direction (being left and right directions and above-below direction, down together).The image as unit with directions X parallax of scenery is arranged in the opposite direction again the image as unit 13 of reversal of effect.Resulting composograph needs to handle through computer again, and the pixel of each image as unit 13 is adjusted composograph 14 to be reduced to forward.In this forward composograph 14, the mutual relationship of the big arrow points in the mutual relationship of the arrow points of big arrow points and little pattern image and the image 10 and the arrow points of little pattern is identical.Adjustment to the image as unit with Y direction parallax of scenery is identical with the reduction mode with the processing of directions X.
Fig. 5 further illustrates the detailed process that is reduced into the composograph of forward from reversed image.The implication of each Reference numeral is among Fig. 5, the 15th, and process large aperture camera lens takes the photograph the image at built-in dome lens grating surface; The 16th, the synoptic diagram of the image as unit that equals a dome lens area in the image 15; Pattern in 17 these image as unit 16 of indication; The 18th, equal detail drawing picture as an elemental area of the CCD device of the photoreceptor of camera, identify with alphabetical A to P respectively; The 6th, be stacked in the built-in dome lens grating on the CCD device, wherein 19 is dome lens; The 20th, the reverse synthetic stereo image that the built-in dome lens grating of process focuses on again; The 21st, a reverse image as unit in the image 20, it is equal to the area of a dome lens; The 22nd, equal the detail drawing picture of an elemental area size of CCD device; 23 expressions are because hemispherical grating and at X and all reverse pattern of Y direction, cause the arrangement of sign A to P of each the detail drawing picture in the image as unit 21 inequality with putting in order of the sign by each detail drawing picture in the image as unit 16 of dome lens not thus; The image as unit that 24 indications are adjusted through directions X; The synthetic stereo image that 25 indications are adjusted through directions X; 26 indicate the image as unit of adjusting through the Y direction again, and its result is consistent with the image as unit of mark indication, i.e. the composograph 27 of the image as unit of process adjustment is the positive three-dimensional effect image of reduction.CCD device among Fig. 5 and built-in dome lens grating can be formed on the same assembly; And built-in dome lens grating can be made up of two semicolumn straight burr gratings.
The flat image that Fig. 6 illustrates the X of a scenery and Y-axis parallax rearranges a synthetic image.Among Fig. 6, one group of plane photo 7A to 7K that contains X and Y-axis parallax is synthesized a width of cloth plane picture 8 ' with computer, the implication of each Reference numeral is respectively among the figure: 26 ' is image as unit in the composograph, and as shown in Figure 6, the quantity of image as unit is identical with lens numbers in the grating; 18 ' is the single pixel in the image as unit.Each width of cloth plane photo 7A to 7K is through cat scanner and be divided into a large amount of pixels 18 ', and the quantity of the dome lens 6 in the grating of the divided pixel quantity of each width of cloth plane photo and entire image is identical.Each image as unit 26 ' is made up of the pixel with same position in each width of cloth plane photo among all plane photo 7A to 7K, and the array format of each pixel in the image as unit 26 ' is opposite to the ordering of 6K ' with corresponding camera 6A '.In synthetic plane picture 8 ', the array format of each image as unit in synthetic plane picture is identical with the ordering of the pairing camera of pixel that each image as unit comprises
From the process shown in Fig. 5 and Fig. 6 as can be seen, in the system of generation stereoscopic image according to the present invention, the concrete steps of the Flame Image Process that is adopted comprise: the image of taking is divided into the visual unit that equals each dome lens area of raster size through built-in dome lens grating, and putting in order on X and Y direction of the respective pixel in the corresponding visual unit in the image that puts in order and take of each pixel in the visual unit that is obtained all is reverse; Reverse on X and Y direction to putting in order of each pixel in the visual unit that is obtained respectively, thus the identical composite image of image that obtains and take.
In addition, according to optical principle, when watching stereo-picture, thereby dome lens all becomes the oppositely 26R of composing images unit with single pixel 18 ' at X and Y direction, so when a synthetic image as unit 26 ', should be according to the optical effect of these lens and in advance with the direction adjustment of pixel 18 ', promptly make being arranged on X and the Y direction oppositely of each pixel in the image as unit.But in the ordinary course of things, because the area of single pixel 18 ' is very little and a pixel of whole composograph 8 ' only, so do not cause very big influence even do not adjust the effect that its direction can stereoscopic image yet.
Fig. 7 schematically illustrates the display device of the omnibearing stereo image that is equipped with the dome lens grating.The implication of each Reference numeral is among Fig. 7, a fraction of 28 indicated number devices; 29 is dome lens; The 30th, LCDs or other forms of image display panel proscenia; The 27th, composograph; 26 is image as unit; 22 is pixels; 31 indications are presented at image as unit on the screen 30; The 32nd, the pixel of display screen.The quantity of the pixel 22 in the image as unit 26 and the quantity of the pixel 32 in the image as unit on the display screen 31 can equate or not wait.Eyes 33 can be seen the stereo-picture by the parallax with different X and Y position, the stereo perception at the scenery scene of thus obtained simulation in different positions.Display device among Fig. 6 can be a liquid crystal indicator, also can be plasm display device or televisor
Can also comprise a digital-code printer according to system of the present invention, be used for synthetic image directly is printed on the back side of a dome lens grating; Perhaps synthetic image directly is printed on the planar materials, is adding a dome lens grating then.
Perhaps, can also comprise a printing machine, be used for synthetic image directly is printed on the back side of a dome lens grating according to system of the present invention; Perhaps synthetic image directly is printed on the planar materials, is adding a dome lens grating then.
In addition, can also comprise a memory storage, be used to store synthetic image according to system of the present invention.
More than adopt the form of preferred embodiment to illustrate the specific embodiment of the present invention.Understand with it will be apparent to those skilled in the art and know, under the situation that does not break away from essence of the present invention and scope, can carry out various modifications, correction or replacement system and method for the present invention.
Reference numeral
The 1st, the large aperture camera lens of camera
The 2nd, built-in dome lens grating
The 3rd, the CCD device of camera
4A, 4B and 4C are scenery
4a, 4b and 4c are respectively the focusing scenes of scenery 4A, 4B and 4C
5A, 5B and 5C are respectively the focussing planes of 4a, 4b and 4c
6A and 6C are that sensitization is at the 4a of CCD device and the light beam of 4c
The 6th, a dome lens in the dome lens grating
6A ' is the camera of arranging by a graded to 6K '
7A to 7K be with camera 6A ' to the corresponding plane photo of 6K '
D1 and D2 are the camera lens radiuses
P1 and P2 are the radiuses of parallax value
The 8th, the shape of scenery
8 ' synthetic image
The 9th, the little pattern in the scenery
The 10th, through the scene image of lens focus
The 11st, the little pattern in the scene image
The 12nd, by the image of dome lens grating
The 13rd, the reciprocal little pattern in the image 12
The 14th, adjust little pattern direction composograph afterwards
The 15th, through the scene image of lens focus
The 16th, the elementary area in the image 15
The 17th, the little pattern in the elementary area 16
18,18 ' is the detail drawing picture that equals an elemental area in the elementary area
19 is dome lens
The 20th, through the image of dome lens grating
The 21st, the detail drawing picture that X and Y arrange in the other direction
22 is pixels
The 23rd, the elementary area that X and Y arrange in the other direction
The 24th, through the elementary area of directions X adjustment
The 25th, through the composograph of directions X adjustment
The 26th, pass through the elementary area that the Y direction is adjusted again
26R is the elementary area before the adjustment of Y direction
26 ' is through the image as unit in the composograph 8 ' after the adjustment of Y direction
The 27th, the composograph of reduction
Claims (17)
1. system that is used to produce the omnibearing stereo image comprises:
A filming apparatus that is equipped with a large aperture camera lens and a built-in dome lens grating, be used for scenery is taken to obtain to have the image with the shooting of the different parallaxes of Y direction at X, wherein, directions X is the horizontal direction in the image, and the Y direction is the vertical direction in the image;
A photoelectric conversion device is used for the image transitions of described shooting is become image signals corresponding, and described built-in dome lens grating is stacked in the surface of this photoelectric conversion device and focuses on the imaging surface of described photoelectric conversion device;
An image signal processing apparatus is used for described picture signal is handled, to draw synthetic picture signal according to the picture signal after handling; With
A display device, be used for described synthetic picture signal is shown, wherein said display device comprises another dome lens grating that is arranged on its place ahead, described another dome lens grating focuses on the display plane of described display device, be used to make shown image to become a synthetic stereoscopic image
Wherein, described treating apparatus is to make the X of pixel and putting in order oppositely of Y direction in the corresponding image as unit of each dome lens grating with described built-in dome lens grating to described treatment of picture, and the acquisition image that synthesize identical with the image of described shooting.
2. the system that is used to produce the omnibearing stereo image according to claim 1 is characterized in that described photoelectric conversion device is a charge-coupled image sensor.
3. the system that is used to produce the omnibearing stereo image according to claim 1 and 2 is characterized in that, described photoelectric conversion device and described built-in dome lens grating are formed on the same assembly.
4. the system that is used to produce the omnibearing stereo image according to claim 1 and 2 is characterized in that, described built-in dome lens grating is made up of two semicolumn straight burr gratings.
5. the system that is used to produce the omnibearing stereo image according to claim 1 and 2 is characterized in that, described filming apparatus is digital camera or Digital Video, or photographic camera.
6. the system that is used to produce the omnibearing stereo image according to claim 1 and 2 is characterized in that, described display device is liquid crystal indicator or plasm display device or televisor.
7. the system that is used to produce the omnibearing stereo image according to claim 1 and 2 is characterized in that, the pixel quantity of described synthetic stereo-picture equates with the pixel quantity of described another dome lens grating.
8. the system that is used to produce the omnibearing stereo image according to claim 1 and 2 is characterized in that, the pixel quantity of described synthetic stereo-picture and the pixel quantity of described another dome lens grating are unequal.
9. the system that is used to produce the omnibearing stereo image according to claim 1 and 2 is characterized in that, described synthetic stereo-picture is a rest image.
10. the system that is used to produce the omnibearing stereo image according to claim 1 and 2 is characterized in that, described synthetic stereo-picture is a live image.
11. the system that is used to produce the omnibearing stereo image according to claim 1 and 2 is characterized in that, also comprises a digital-code printer, is used for described synthetic image directly is printed on the back side of a dome lens grating.
12. the system that is used to produce the omnibearing stereo image according to claim 1 and 2, it is characterized in that, also comprise a digital-code printer, be used for described synthetic image directly is printed on a planar materials, adding a dome lens grating then.
13. the system that is used to produce the omnibearing stereo image according to claim 1 and 2 is characterized in that, also comprises a printing machine, is used for described synthetic image directly is printed on the back side of a dome lens grating.
14. the system that is used to produce the omnibearing stereo image according to claim 1 and 2, it is characterized in that, also comprise a digital-code printer, be used for described synthetic image directly is printed on a planar materials, adding a dome lens grating then.
15. the system that is used to produce the omnibearing stereo image according to claim 1 and 2 is characterized in that, also comprises a memory storage, is used to store described synthetic image.
16. a method that is used to produce the omnibearing stereo image may further comprise the steps:
Adopt one to be equipped with the filming apparatus of a large aperture camera lens and a built-in dome lens grating that scenery is taken, to obtain to have the image with the shooting of the different parallaxes of Y direction at X, wherein, directions X is the horizontal direction in the image, and the Y direction is the vertical direction in the image;
The image transitions of described shooting is become image signals corresponding;
Described picture signal is handled, to draw synthetic picture signal according to the picture signal after handling; With
Described synthetic picture signal is shown as a synthetic stereoscopic image,
Wherein, be to make the X of pixel and putting in order oppositely of Y direction to described treatment of picture, and the acquisition synthetic image identical with the image of described shooting.
17. method according to claim 16 is characterized in that, the described step that picture signal is handled comprises:
The image of taking is divided into the visual unit that equals each dome lens area of raster size through described built-in dome lens grating, wherein, the putting in order on X and Y direction of respective pixel in the corresponding visual unit in the image with described shooting of putting in order of each pixel in the described visual unit all is reverse;
Reverse on X and Y direction to putting in order of each pixel in the visual unit that is obtained respectively, thus the composite image identical obtained with the image of described shooting.
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