A kind of line holographic projections reverse image method and system thereof
Technical field
The present invention relates to the vehicle imaging device, relate in particular to automobile line holographic projections reverse image method and system thereof.
Background technology
Along with automobile is more and more, traffic accident is also many more, for new hand; The difficulty of reversing is still than higher, owing to do not see the object situation behind the tailstock, thereby the situation that some little collisions occur of causing moveing backward is more and more; Though being arranged now, the Reverse Sensor prompting avoids touching obstacle; Also have and use read-out to play the effect that car rear image reaches visual reversing, still still can't know the far and near situation of car and obstruction, cause the generation of accident easily.
Therefore, prior art haves much room for improvement.
Summary of the invention
Can know the method and the system thereof of the automobile line holographic projections reverse image of the far and near situation of seeing that rear obstacle is three-dimensional when the object of the present invention is to provide a kind of the reversing.
Technical scheme of the present invention is following:
A kind of line holographic projections reverse image method wherein, may further comprise the steps:
A opens reverse;
B utilizes the camera that is arranged on the tailstock to obtain the image information at rear in real time;
C utilizes holographic space projection technology that said image information is processed into the 3D image;
D utilizes the line holographic projections machine that is arranged in the car to throw said 3D image.
Described line holographic projections reverse image method, wherein, camera described in the step B is at least three.
Described line holographic projections reverse image method, wherein, said camera has two left and right sides that are separately positioned on the tailstock at least, and at least one is arranged between the left and right sides.
Described line holographic projections reverse image method, wherein, said camera is the panoramic shooting head.
Described line holographic projections reverse image method, wherein, the image of 3D described in the step D projects on the line holographic projections film that is arranged on windshield.
A kind of line holographic projections reverse image system wherein, comprises,
Be used to detect the detecting device whether reverse opens;
Be used to obtain the camera of the image information at rear;
Be used for the image information that said camera obtains is processed into the processing module of 3D image;
Be used to throw the line holographic projections machine of said 3D image;
Be used to store the memory device of said image information and 3D image;
Said detecting device, camera, memory device, line holographic projections machine all are connected with said processing module.
Described line holographic projections reverse image system, wherein, said camera is at least three.
Described line holographic projections reverse image system, wherein, said camera has two left and right sides that are separately positioned on the tailstock at least, and at least one is arranged between the left and right sides.
Described line holographic projections reverse image system, wherein, said camera is the panoramic shooting head.
Described line holographic projections reverse image system wherein, also comprises the line holographic projections film that is arranged on windshield, and said line holographic projections film is facing to the projection mouth of said line holographic projections machine.
The present invention utilizes existing reverse image and holographic technique to combine; The three dimensional space imaging of the reverse image at rear in chaufeur the place ahead; Let chaufeur when reversing, only need see the fwd stereopsis; Become forward driving to reversing, reduce the difficulty of reversing greatly and effectively avoid the traffic accident of moveing backward and being taken place.
Description of drawings
Fig. 1 is the structural representation of a kind of line holographic projections reverse image of the present invention.
Fig. 2 is the diagram of circuit of a kind of line holographic projections reverse image of the present invention method.
Fig. 3 is the scheme drawing of a kind of line holographic projections reverse image of the present invention system.
The specific embodiment
The invention provides a kind of line holographic projections reverse image method and system thereof, clearer, clear and definite for making the object of the invention, technical scheme and effect, below with reference to accompanying drawing and give an actual example to further explain of the present invention.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Like Fig. 1, shown in Figure 2, scheme drawing and diagram of circuit thereof for a kind of line holographic projections reverse image of the present invention method may further comprise the steps:
Step S1, reverse is opened.Only under the situation of reversing, using, therefore judge whether to open reverse is the first step to technical scheme of the present invention, if do not open reverse, then stops this program automatically, has opened and has just got into next step.
Step S2 utilizes the camera of the tailstock to obtain the image information at rear, and said camera preferably is provided with and is at least three, wherein have two left and right sides that are separately positioned on the tailstock at least, and at least one is arranged between the left and right sides.Can state the leglibility of handling the 3D image after the raising from taking with multi-angle like this; As shown in Figure 1; Comprise that specifically camera angle is that tailstock left side camera 31, the camera angle of α is the middle part camera 32 of β and the tailstock right side camera 33 that camera angle is γ; Said camera is preferably the panoramic shooting head; Can enlarge the imaging region of 3D image like this, reduce the usage quantity of camera.Said tailstock left side camera 31 can photograph most of situation in automobile left side; Said tailstock right side camera 33 can photograph the most situation in right side; And the situation that middle part camera 32 mainly just is used to take tailstock rear; Just the situation at automobile both sides and rear just can appear in appearance 3D image, and image when showing reversing in all directions comprises the scratching that prevents that the vehicle right and left both sides from may occur.Preferred scheme is that said tailstock left side camera 31 and tailstock right side camera 33 are all in the camera angle of said middle part camera 32.Can guarantee the integraty and the continuity of follow-up 3D image like this.Said image information mainly is to utilize principle of interference record object light-wave information: subject forms the object beam of diffuse under laser irradiation; Another part laser light beam as a reference is mapped on the holofilm; Stack produces and interferes with object beam; Convert the position phase and the amplitude of each point on the object light wave to spatially change intensity, thereby utilize the contrast between interference fringe the full detail of object light wave to be noted with the interval.
Step S3 utilizes holographic space projection technology that said image information is processed into the 3D image.Specifically can be in vehicle-mounted computer install software; The image information that camera is obtained is processed into the 3D image; Holographic space projection technology is also claimed the virtual image technology, is to utilize interference and diffraction principle record and reproduce the record of the real 3-D view of object and the technology of reproduction.Specifically be to utilize diffraction principle to reproduce the object light-wave information; This is an imaging procedures: hologram is just as the grating of a complicacy; Under coherent laser illumination, the diffraction light wave of the sinusoidal pattern hologram of a bracing cable property record generally can provide two and resemble, promptly original elephant (claiming initial image again) and conjugate image.The image three-dimension effect that reproduces is strong, has real visual effect.Each part of hologram has all write down the optical information of each point on the object; So its each part can both be reproduced the entire image of the original in principle; Can also on same egative film, write down a plurality of pictures different through multiexposure, multiple exposure, and can show respectively without interfering with each other.Holographic space projection technology repeatedly has been applied to star's concert, museum, and concrete realization principle repeats no more at this.
Step S4; Utilize the line holographic projections machine to throw said 3D image; Said line holographic projections machine can use the 3D line holographic projections machine of model as the XG-D5000XA of Sharp, and the place ahead that directly said 3D image is incident upon chaufeur gets final product, and chaufeur is just felt to open forward the same in reversing like this.In order to reach 3D effect more true to nature; Can also arrange in pairs or groups and use the line holographic projections film; Can said line holographic projections film be arranged on the inboard of the Windshield in operator seat the place ahead, and face toward the projection mouth of said line holographic projections machine, chaufeur will be seen real image through Windshield by perceptual image like this.Though do not need the technology of line holographic projections film not popularize, a notion mobile phone (holographic little pitcher's machine) by design engineer Mac Funamizu design-calculated Cobalto by name is just used this technology.And this technology is to be applied to said line holographic projections machine equally.Believing does not need the line holographic projections function of holographic projection film to popularize use in the near future.
The invention also discloses a kind of line holographic projections reverse image system; Comprise and be used to detect the detecting device 13 whether reverse opens; Be used to obtain the camera 30 of the image information at rear; Be used for the image information that said camera obtains is processed into the processing module 11 of 3D image, be used to throw the line holographic projections machine 20 of said 3D image; Comprise that also one is used to store the memory device 12 of said image information and 3D image, said detecting device 13, camera 30, memory device 12, line holographic projections machine 20 all are connected with said processing module 11.Particularly, said processing module 11 is a vehicle-mounted computer, and said camera 30 can be the panoramic shooting head, and said detecting device 13 can be infrared detector, only needs to detect whether a certain position of reverse, just knows whether open reverse.The information that said detecting device 13 gets access to sends to processing module 11; Said processing module 11 will notify said camera 30 to obtain the image information at tailstock rear in real time; Through memory device 12 storages; Said processing module 11 will be processed into the 3D image with said image information, casts out through said line holographic projections machine 20 at last, and chaufeur just can be seen the stereopsis true to nature at tailstock rear in real time.Thereby reduce the reversing collision case that does not cause by force owing to far and near sense.
In practical application, said camera 30 is at least three.As shown in Figure 1, wherein have two left and right sides that are separately positioned on the tailstock at least, and at least one is arranged between the left and right sides.Can state the leglibility of handling the 3D image after the raising from taking with multi-angle like this; As shown in Figure 1; Comprise that specifically camera angle is that tailstock left side camera 31, the camera angle of α is the middle part camera 32 of β and the tailstock right side camera 33 that camera angle is γ; Said camera is preferably the panoramic shooting head; Can enlarge the imaging region of 3D image like this, reduce the usage quantity of camera.Said tailstock left side camera 31 can photograph most of situation in automobile left side; Said tailstock right side camera 33 can photograph the most situation in right side; And the situation that middle part camera 32 mainly just is used to take tailstock rear; Just the situation at automobile both sides and rear just can appear in appearance 3D image, and image when showing reversing in all directions comprises the scratching that prevents that the vehicle right and left both sides from may occur.Preferred scheme is that said tailstock left side camera 31 and tailstock right side camera 33 are all in the camera angle of said middle part camera 32.Can guarantee the integraty and the continuity of follow-up 3D image like this.
Preferred version is, line holographic projections reverse image of the present invention system also comprises the line holographic projections film 21 that is arranged on windshield, and said line holographic projections film 21 is facing to the projection mouth of said line holographic projections machine.For make chaufeur reversing the time have the sensation of opening forward, said line holographic projections film 21 can be arranged on chaufeur just before.The method of line holographic projections reverse image system of the present invention and above-mentioned line holographic projections reverse image is to support each other to be mutually related, and concrete know-why as stated.
Should be understood that, concerning those of ordinary skills, can improve or conversion, and all these improvement and conversion all should belong to the protection domain of accompanying claims of the present invention according to above-mentioned explanation.