CN102815267B - A kind of line holographic projections reverse image method and system thereof - Google Patents
A kind of line holographic projections reverse image method and system thereof Download PDFInfo
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- CN102815267B CN102815267B CN201210266255.3A CN201210266255A CN102815267B CN 102815267 B CN102815267 B CN 102815267B CN 201210266255 A CN201210266255 A CN 201210266255A CN 102815267 B CN102815267 B CN 102815267B
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Abstract
The invention discloses a kind of line holographic projections reverse image method and system thereof, described line holographic projections reverse image method, comprises the following steps: open reverse; Utilize the image information being arranged on the camera Real-time Obtaining rear of the tailstock; Utilize holographic space shadow casting technique that described image information processing is become 3D image; Line holographic projections machine is utilized to project described 3D image.The present invention utilizes existing reverse image and holographic technique to combine, the reverse image at rear in the three dimensional space imaging of chaufeur front, chaufeur is allowed only to need the stereopsis that look at above when moveing backward, reversing is become and drives a vehicle forward, greatly reduce the difficulty of reversing and effectively avoid the traffic accident occurred of moveing backward.
Description
Technical field
The present invention relates to vehicle imaging device, particularly relate to automobile line holographic projections reverse image method and system thereof.
Background technology
Along with automobile gets more and more, traffic accident is also more, for new hand, reversing difficulty still higher, owing to not seeing the object conditions after the tailstock, thus cause moveing backward occur some little collisions situation get more and more, avoid touching obstacle although there is now Reverse Sensor to point out, also have and use read-out to play car rear image to reach the effect of visual parking device, but still cannot know the far and near situation of car and obstruction, easily cause the generation of accident.
Therefore, prior art haves much room for improvement.
Summary of the invention
The object of the present invention is to provide method and the system thereof of the automobile line holographic projections reverse image can knowing the far and near situation of seeing rear obstacle solid during a kind of reversing.
Technical scheme of the present invention is as follows:
A kind of line holographic projections reverse image method, wherein, comprises the following steps:
A, opens reverse;
B, utilizes the image information being arranged on the camera Real-time Obtaining rear of the tailstock;
C, utilizes holographic space shadow casting technique that described image information processing is become 3D image;
D, utilizes the line holographic projections machine be arranged in car to project described 3D image.
Described line holographic projections reverse image method, wherein, camera described in step B is at least three.
Described line holographic projections reverse image method, wherein, described camera has two left and right sides being 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, described camera is full-view camera.
Described line holographic projections reverse image method, wherein, the image projection of 3D described in step D is on the line holographic projections film being arranged on windshield.
A kind of line holographic projections reverse image system, wherein, comprises,
For detecting the detecting device whether reverse opens;
For obtaining the camera of the image information at rear;
Image information processing for being obtained by described camera becomes the processing module of 3D image;
For projecting the line holographic projections machine of described 3D image;
For storing the memory device of described image information and 3D image;
Described detecting device, camera, memory device, line holographic projections machine are all connected with described processing module.
Described line holographic projections reverse image system, wherein, described camera is at least three.
Described line holographic projections reverse image system, wherein, described camera has two left and right sides being 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, described camera is full-view camera.
Described line holographic projections reverse image system, wherein, also comprises the line holographic projections film being arranged on windshield, and described line holographic projections film is facing to the projection mouth of described line holographic projections machine.
The present invention utilizes existing reverse image and holographic technique to combine, the reverse image at rear in the three dimensional space imaging of chaufeur front, chaufeur is allowed only to need the stereopsis that look at above when moveing backward, reversing is become and drives a vehicle forward, greatly reduce the difficulty of reversing and effectively avoid the traffic accident occurred of moveing backward.
Accompanying drawing explanation
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 schematic diagram of a kind of line holographic projections reverse image of the present invention system.
Detailed description of the invention
The invention provides a kind of line holographic projections reverse image method and system thereof, for making object of the present invention, technical scheme and effect clearly, clearly, referring to accompanying drawing examples, the present invention is described in more detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1 and Figure 2, be schematic diagram and the diagram of circuit thereof of a kind of line holographic projections reverse image of the present invention method, comprise the following steps:
Step S1, reverse is opened.Technical scheme of the present invention only uses for when moveing backward, and therefore judges whether that opening reverse is the first step, if do not open reverse, then automatically stops this program, opens and just enter next step.
Step S2, utilize the camera of the tailstock to obtain the image information at rear, described camera preferably arranges and is at least three, wherein have two left and right sides being separately positioned on the tailstock at least, and at least one is arranged between the left and right sides.From taking with multi-angle, the leglibility of aftermentioned process 3D image can be improved like this; As shown in Figure 1, specifically comprise camera 31 on the left of the tailstock that camera angle is α, camera 33 on the right side of the tailstock that middle part camera 32 that camera angle is β and camera angle are γ, described camera is preferably full-view camera, the imaging region of 3D image can be expanded like this, reduce the usage quantity of camera.On the left of the described tailstock, camera 31 can photograph most of situation of automobile left side, on the right side of the described tailstock, camera 33 can photograph the most situation in right side, and middle part camera 32 is main just for taking the situation at tailstock rear, the situation at automobile both sides and rear just can be there is with regard to sample 3D image, image during displaying reversing in all directions, comprises the scratching preventing vehicle right and left both sides from may occur.Preferred scheme is, on the left of the described tailstock on the right side of camera 31 and the tailstock camera 33 all in the camera angle of described middle part camera 32.Integraty and the continuity of follow-up 3D image can be ensured like this.Described image information mainly utilizes principle of interference record object light-wave information: subject forms the object beam of diffuse type under laser irradiation; Another part laser is as being mapped on holofilm with reference to light beam, produce with object beam superposition and interfere, the position phase of each point on object light wave and amplitude are converted to the intensity spatially changed, thus utilizes the contrast between interference fringe and interval to be recorded by the full detail of object light wave.
Step S3, utilizes holographic space shadow casting technique that described image information processing is become 3D image.Specifically can in vehicle-mounted computer mounting software, the image information processing that camera obtains is become 3D image, holographic space shadow casting technique also claims virtual image technology, is to utilize interference and diffraction principle record and the technology of the recording and reconstruction of the real 3-D view of reconstructed object.Specifically utilize diffraction principle reconstructed object light-wave information, this is imaging procedures: the grating that hologram is complicated just as, under coherent laser illumination, the diffraction light wave of the sinusoidal pattern hologram of a linear recording generally can provide two and resemble, and namely originally resembles (also known as initial image) and conjugate image.The image three-dimension effect reproduced is strong, has real visual effect.Every part of hologram all have recorded the optical information of each point on object, therefore its every part can reproduce the whole image of the original in principle, multiple different image can also be recorded on same egative film by multiexposure, multiple exposure, and can show respectively without interfering with each other.Holographic space shadow casting technique is repeatedly applied to star's concert, museum, and concrete realizes principle, does not repeat them here.
Step S4, line holographic projections machine is utilized to project described 3D image, the 3D line holographic projections machine that described line holographic projections machine can use model to be Sharp XG-D5000XA, directly by described 3D image projection in the front of chaufeur, such chaufeur is just felt to open forward the same when reversing.In order to reach 3D effect more true to nature, can also arrange in pairs or groups and use line holographic projections film, described line holographic projections film can be arranged on the inner side of the Windshield in operator seat front, and face toward the projection mouth of described line holographic projections machine, such chaufeur will see real image through Windshield by perceptual image.Although do not need the technology of line holographic projections film not popularize, this technology just applied by the concept mobile phone (holographic micro-pitcher's machine) of a Cobalto by name designed by design engineer Mac Funamizu.And this technology to be applied to described line holographic projections machine equally.Believe the universal use of line holographic projections function not needing holographic projection film in the near future.
The invention also discloses a kind of line holographic projections reverse image system, comprise the detecting device 13 whether opened for detecting reverse, for obtaining the camera 30 of the image information at rear, image information processing for being obtained by described camera becomes the processing module 11 of 3D image, for projecting the line holographic projections machine 20 of described 3D image; Also comprise one for storing the memory device 12 of described image information and 3D image, described detecting device 13, camera 30, memory device 12, line holographic projections machine 20 are all connected with described processing module 11.Particularly, described processing module 11 is vehicle-mounted computer, and described camera 30 can be full-view camera, and described detecting device 13 can be infrared detector, only need detect the whether a certain position of reverse, just can know whether unlatching reverse.The information that described detecting device 13 gets is sent to processing module 11, described processing module 11 will notify the image information at described camera 30 Real-time Obtaining tailstock rear, store through memory device 12, described image information processing will be become 3D image by described processing module 11, cast out finally by described line holographic projections machine 20, chaufeur just can see the lifelike stereoscopic image at tailstock rear in real time.Thus reduce and that cause reversing collision case strong due to distance sense.
In actual applications, described camera 30 is at least three.As shown in Figure 1, wherein have two left and right sides being separately positioned on the tailstock at least, and at least one is arranged between the left and right sides.From taking with multi-angle, the leglibility of aftermentioned process 3D image can be improved like this; As shown in Figure 1, specifically comprise camera 31 on the left of the tailstock that camera angle is α, camera 33 on the right side of the tailstock that middle part camera 32 that camera angle is β and camera angle are γ, described camera is preferably full-view camera, the imaging region of 3D image can be expanded like this, reduce the usage quantity of camera.On the left of the described tailstock, camera 31 can photograph most of situation of automobile left side, on the right side of the described tailstock, camera 33 can photograph the most situation in right side, and middle part camera 32 is main just for taking the situation at tailstock rear, the situation at automobile both sides and rear just can be there is with regard to sample 3D image, image during displaying reversing in all directions, comprises the scratching preventing vehicle right and left both sides from may occur.Preferred scheme is, on the left of the described tailstock on the right side of camera 31 and the tailstock camera 33 all in the camera angle of described middle part camera 32.Integraty and the continuity of follow-up 3D image can be ensured like this.
Preferred version is, line holographic projections reverse image system of the present invention also comprises the line holographic projections film 21 being arranged on windshield, and described line holographic projections film 21 is facing to the projection mouth of described line holographic projections machine.In order to make chaufeur move backward time have the sensation opened forward, described 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 mutually supports to be mutually related, and concrete know-why is described above.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (2)
1. a line holographic projections reverse image method, is characterized in that, comprises the following steps:
A, opens reverse;
B, utilizes the image information being arranged on the camera Real-time Obtaining rear of the tailstock;
C, utilizes holographic space shadow casting technique that described image information processing is become 3D image;
D, utilizes the line holographic projections machine be arranged in car to project described 3D image;
Camera described in step B is three;
Described camera has two left and right sides being separately positioned on the tailstock, and one is arranged between the left and right sides;
On the left of the tailstock on the right side of camera and the tailstock camera all in the middle part of the tailstock camera camera angle in;
Described camera is full-view camera;
The image projection of 3D described in step D is on the line holographic projections film being arranged on windshield;
The model of described line holographic projections machine is the 3D line holographic projections machine of Sharp XG-D5000XA;
The principle of described holographic space shadow casting technique is: hologram is a complicated grating, and under coherent laser illumination, the diffraction light wave of the sinusoidal pattern hologram of a linear recording provides original elephant and resembles with conjugate image two; Every part of hologram all have recorded the optical information of each point on object, records multiple different image, show respectively without interfering with each other by multiexposure, multiple exposure on same egative film.
2. a line holographic projections reverse image system, is characterized in that, comprises,
For detecting the detecting device whether reverse opens;
For obtaining the camera of the image information at rear;
Image information processing for being obtained by described camera becomes the processing module of 3D image;
For projecting the line holographic projections machine of described 3D image;
For storing the memory device of described image information and 3D image;
Described detecting device, camera, memory device, line holographic projections machine are all connected with described processing module;
Described camera is three;
Described camera has two left and right sides being separately positioned on the tailstock, and one is arranged between the left and right sides;
On the left of the tailstock on the right side of camera and the tailstock camera all in the middle part of the tailstock camera camera angle in;
Described camera is full-view camera;
Also comprise the line holographic projections film being arranged on windshield, described line holographic projections film is facing to the projection mouth of described line holographic projections machine;
The model of described line holographic projections machine is the 3D line holographic projections machine of Sharp XG-D5000XA;
The principle of described holographic space shadow casting technique is: hologram is a complicated grating, and under coherent laser illumination, the diffraction light wave of the sinusoidal pattern hologram of a linear recording provides original elephant and resembles with conjugate image two; Every part of hologram all have recorded the optical information of each point on object, records multiple different image, show respectively without interfering with each other by multiexposure, multiple exposure on same egative film.
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| CN103496339B (en) * | 2013-08-26 | 2015-12-09 | 江西好帮手电子科技有限公司 | A kind of display system by 3D display automobile panorama and its implementation |
| KR20150051735A (en) * | 2013-11-05 | 2015-05-13 | 현대모비스 주식회사 | Parking Guide System and the Method |
| CN103822614B (en) * | 2014-03-14 | 2015-12-30 | 河北工业大学 | The method for three-dimensional measurement of reverse image |
| CN104135654B (en) * | 2014-07-01 | 2016-07-06 | 浙江吉利控股集团有限公司 | A kind of intelligence 3D reverse image method and system thereof |
| CN104442399B (en) * | 2014-11-26 | 2017-04-12 | 深圳市华宝电子科技有限公司 | Vehicle part displaying method and device |
| CN104883557A (en) * | 2015-05-27 | 2015-09-02 | 世优（北京）科技有限公司 | Real time holographic projection method, device and system |
| CN105427591B (en) * | 2015-10-30 | 2017-10-27 | 上海斐讯数据通信技术有限公司 | A kind of intelligent Garage System and intelligent garage operation method |
| CN105539288A (en) * | 2015-12-10 | 2016-05-04 | 合肥虔视光电科技有限公司 | Transparent automobile backseat projection display system |
| CN105857177A (en) * | 2015-12-14 | 2016-08-17 | 乐视云计算有限公司 | Holographic driving recording device and method |
| CN105702090B (en) * | 2016-01-29 | 2018-08-21 | 深圳市美好幸福生活安全系统有限公司 | A kind of reversing alarm set and method |
| CN105882525A (en) * | 2016-04-13 | 2016-08-24 | 乐视控股（北京）有限公司 | Method, device and system for displaying rear view |
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| CN107399276A (en) * | 2017-07-28 | 2017-11-28 | 合肥芯福传感器技术有限公司 | AR optical projection systems and projecting method for vehicle safety reversing |
| CN111231833A (en) * | 2020-01-30 | 2020-06-05 | 华东交通大学 | Automobile auxiliary driving system based on combination of holographic projection and AR |
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