CN102831257A - Establishing method of simulation test platform of road traffic virtual signs and marks - Google Patents
Establishing method of simulation test platform of road traffic virtual signs and marks Download PDFInfo
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- CN102831257A CN102831257A CN2011101629676A CN201110162967A CN102831257A CN 102831257 A CN102831257 A CN 102831257A CN 2011101629676 A CN2011101629676 A CN 2011101629676A CN 201110162967 A CN201110162967 A CN 201110162967A CN 102831257 A CN102831257 A CN 102831257A
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Abstract
The invention relates to research of setting reasonability of road traffic virtual signs and marks, in particular to an establishing method of a simulation test platform of the road traffic virtual signs and marks. The method comprises the following steps: first, shooting a scene video of an actual road by simulating the view of a driver by a vidicon as an original video; second, obtaining path tracking parameters of the vidicon; then, adding drawn signs and marks to the original video by an adding vidicon function by Maya software, and obtaining a real scene video with virtual signs and marks through video synthesis and rendering as a simulating scene; and finally, inputting the simulating video into a simulating driving system to be matched with a driving simulator, so that the simulation test of the virtual signs and marks based on the real scene video can be carried out.
Description
Technical field
the present invention relates to the Rationality Study that is provided with of road signs and markings, particularly a kind of method for building up of analogue test platform of road traffic virtual identifier marking.
Technical background
road signs and markings is being brought into play important effect in road traffic system.According to statistics, traffic sign and marked input is less than 2% of road construction total cost, but the effect that it plays is irreplaceable.External correlative study also shows the correlation ratio of identifier marking and accident up to 72%, the identifier marking conevying efficiency rationally is set can improves 30%.Existing road is linear not changing, and not carrying out through improving the highway traffic sign graticule, provides necessary traffic safety information to human pilot under the prerequisite of large-scale civil engineering work transformation, is one of effective way that reduces the traffic hazard generation.
Factors such as
traffic sign and marked color, size, type, installation site have material impact to driver's safe driving, therefore, the traffic sign and marked security performance that can improve road are set reasonably.The general two kinds of methods that adopt are passed judgment in traffic sign and marked installation of present stage, and the firstth, on real road, carry out traffic sign and marked test, another kind is to carry out the traffic sign and marked test under the complete virtual environment in testing laboratory.First method is employed in traffic sign is installed on the real road, lay traffic marking because road and traffic sign and marked all be actual use, so actual conditions that this method can the actual response road, with a high credibility.But the installation identifier marking that needs repeatedly at the trial, repeats, this causes the experiment work amount big, and cost is high.Need on test roads, go through driver's steering vehicle during test and pass judgment on various traffic sign and marked rationality; Experimentation cost is high, and workload is big, and receives the influence of objective factors such as weather; The continuous variation of experimental enviroment condition makes the consistance of subjective assessment be difficult to realize.The test method of traffic marking under the virtual environment at first adopts the three-dimensional software design of making to produce 3 D stereo emulation road fully, and road periphery scene and traffic sign and marked; Then with traffic sign and marked interpolation, be installed on the virtual road; The input driving simulation system is tested the graticule that is added on driving simulator by the driver, and its cost is low; Workload is less relatively, and is repeatable high.Therefore because the test scene is virtual road scene, test lacks the sense of reality, gets in touch not closely with the practical application road, and the evaluation of test effect is excessive with the gap that real road uses, and has influenced the confidence level of evaluation.
Summary of the invention
the object of the present invention is to provide the method for building up of the analogue test platform that is particularly related to a kind of road traffic virtual identifier marking; Based on road real scene video; It can reflect the real roads environment, can carry out replica test to road environment again.
In order to reach above-mentioned technical purpose, technical scheme of the present invention is to realize like this
.
A kind of method for building up of analogue test platform of road traffic virtual identifier marking based on road real scene video, is characterized in that, may further comprise the steps:
At first, video camera is placed on the steering position of camera car, the scene video of real road is at the uniform velocity produced, as original video in drive simulating person's the visual field;
Secondly; Original video is imported computing machine; Utilize Adobe Premiere Pro software to convert original video the picture of TIF form into, and input Boujou is lost and carries out the video camera path trace in the part, obtain the path trace parameter of camera; And with above-mentioned parameter with Maya software format output, preserve output file;
Then, adopt Maya software to draw needed various identifier markings in the test; And in Maya software, open the output file of Boujou software; Utilize the interpolation camera function of Maya software to add on the original video with drawing good identifier marking; Through video synthetic with render process after; Can obtain having the real scene video of virtual identifier marking, as analog video;
are last, with above-mentioned analog video input driving simulation system, cooperate with driving simulator, can carry out the simulation test based on the virtual identifier marking of road real scene video.
The method for building up of the analogue test platform of
road traffic virtual identifier marking of the present invention; The road real scene that is utilized is chosen and was handled from the real road environment; Need not computer system and create picture again according to Pixel Information, therefore, implementation procedure is simple, efficient is high and have stronger presence; Traffic environment is more true to nature than the virtual emulation scene in the scene; Scene can choose at random, process simultaneously, and can create the scene of multiple highway section, multiple traffic environment, has the extensibility of height.
the present invention utilizes video camera tracking software Boujou that captured original video is carried out the video camera path trace, writes down its path trace parameter.On basis with reference to above-mentioned parameter; Needed various identifier markings and original video in the Maya software development test are carried out video to be synthesized; Eliminated the problem of beating that original video is shaken the virtual identifier marking that brings, can make virtual traffic identifier marking and real scene video close match.
The foundation of
analogue test platform of the present invention; Solved not only that in real roads environment lower berth bidding line cost is high, labor capacity is big, lack the shortcoming of test dirigibility, and can also remedy the deficiency that under the indoor static test, can not reflect the real roads environment.
Embodiment
The method for building up of the analogue test platform of road traffic virtual identifier marking of the present invention based on road real scene video, specifically may further comprise the steps:
at first, with taking the photograph the steering position that the Chi machine is placed on camera car, the scene video of real road is at the uniform velocity produced, as original video in drive simulating person's the visual field.Be specially: arrange on the right of steering position then video camera to be installed in tripod on the tripod, make just position, 10 centimetres of left and right sides below room mirror of video camera.Select for use DV that test roads is taken one section video record, vehicle at the uniform velocity went in the central authorities in track as far as possible when video recording was taken, and marked out the height of looking of video camera viewpoint when recording.Simultaneously, take viewpoint and require to overlap as far as possible, so promptly meet general driver's real visual angle, and help the shooting of road real scene with driver's actual view.
Secondly
; Original video is imported computing machine; Utilize Adobe Premiere Pro software to convert original video the picture of TIF form into, and carry out the video camera path trace in the input Boujou software, obtain the path trace parameter of video camera; And with above-mentioned parameter with Maya software format output, preserve output file.Be specially: taken original video and be transferred in the computing machine, utilized Adobe Premiere Pro software that the original video of being gathered is changed, original video files has been converted to the picture of TIF form through the USB2.0 connection.The picture of the TIF form that Adobe Premiere Pro is converted to; In video camera tracking software Boujou, open; It is carried out the video camera path trace, calculate the motion (position, rotation and focal length) of video camera and the path trace parameters such as georeferencing position of many unique points, and with the form output of these parameters with Maya; Preserve output file, in order to solve the jitter problem that brings when virtual identifier marking adds.
adopt Maya software to draw needed various identifier markings in the test then; And in Maya software, open the output file of Bouj ou software; Utilize the interpolation camera function of Maya software to add on the original video with drawing good identifier marking; Through video synthetic with render process after; Get final product to such an extent that cut the throat real scene video, as analog video with virtual identifier marking.Be specially: adopt Maya three-dimensional drawing software to draw needed various identifier markings in the test, like speed(-)limit sign, turning mark, road surface speed reduction marking etc.After the drawing of complement mark graticule, in Maya software, open the output file of Boujou software, so that next utilize the interpolation camera function of Maya software to add on the original video with drawing good identifier marking.Different demands according to test can be arranged on identifier marking on the different positions, play the effect of contrast test.After identifier marking add to be accomplished, it was synthetic to carry out video, pass through render process again after, can obtain having the real scene video of virtual identifier marking, as analog video, store in the computing machine.
are last, with above-mentioned analog video input driving simulation system, cooperate with driving simulator, can carry out the simulation test based on the virtual identifier marking of road real scene video.Driving simulator is by bearing circle, accelerator pedal, and brake pedal, shift handle is formed, and links to each other with computing machine through USB interface.Computer loads driving simulation system, and input analog video file.After starting driving simulation system; The driver's operation accelerator pedal; Brake pedal comes the acceleration and deceleration of simulating vehicle, makes video image deflect the turning of simulating vehicle through steering wheel rotation, comes the actual shift process of simulating vehicle through the operation shift handle; With normal running vehicle environmental basically identical, guaranteed the fidelity of test.
driver accomplishes after the test in certain highway section the condition survey that makes an experiment to the driver; Emphasis is that inquiry agency adds the traffic sign and marked situation that influences to driver's drive simulating vehicle; Record unlike signal graticule, different installation site obtain the traffic sign and marked best plan of establishment in this highway section to driver's influence through whole highway section is made an experiment.
Claims (1)
1. the method for building up of the analogue test platform of a road traffic virtual identifier marking based on road real scene video, is characterized in that, may further comprise the steps:
At first, video camera is placed on the steering position of camera car, the scene video of real road is at the uniform velocity produced, as original video in drive simulating person's the visual field;
Secondly; Original video is imported computing machine; Utilize Adobe Premiere Pro software to convert original video the picture of TIF form into, and carry out the video camera path trace in the input Boujou software, obtain the path trace parameter of video camera; And with above-mentioned parameter with Maya software format output, preserve output file;
Then, adopt Maya software to draw needed various identifier markings in the test; And in Maya software, open the output file of Boujou software; Utilize the interpolation camera function of Maya software to add on the original video with drawing good identifier marking; Through video synthetic with render process after; Can obtain having the real scene video of virtual identifier marking, as analog video;
At last,, cooperate, can carry out simulation test based on the virtual identifier marking of road real scene video with driving simulator with above-mentioned analog video input driving simulation system.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101629676A CN102831257A (en) | 2011-06-17 | 2011-06-17 | Establishing method of simulation test platform of road traffic virtual signs and marks |
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| CN2011101629676A CN102831257A (en) | 2011-06-17 | 2011-06-17 | Establishing method of simulation test platform of road traffic virtual signs and marks |
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| CN102831257A true CN102831257A (en) | 2012-12-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103093653A (en) * | 2013-01-21 | 2013-05-08 | 福建省纳金网信息技术有限公司 | Augmented reality training system and method |
| CN108646718A (en) * | 2018-07-03 | 2018-10-12 | 吉林大学 | The detection device of automobile intelligent speed limiting control system |
-
2011
- 2011-06-17 CN CN2011101629676A patent/CN102831257A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103093653A (en) * | 2013-01-21 | 2013-05-08 | 福建省纳金网信息技术有限公司 | Augmented reality training system and method |
| CN108646718A (en) * | 2018-07-03 | 2018-10-12 | 吉林大学 | The detection device of automobile intelligent speed limiting control system |
| CN108646718B (en) * | 2018-07-03 | 2023-11-10 | 吉林大学 | Detection equipment of intelligent speed limiting control system of automobile |
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Application publication date: 20121219 |