CN101629821A - Digital image acquisition and processing method for small-section underground room - Google Patents
Digital image acquisition and processing method for small-section underground room Download PDFInfo
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- CN101629821A CN101629821A CN200910063469A CN200910063469A CN101629821A CN 101629821 A CN101629821 A CN 101629821A CN 200910063469 A CN200910063469 A CN 200910063469A CN 200910063469 A CN200910063469 A CN 200910063469A CN 101629821 A CN101629821 A CN 101629821A
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Abstract
The invention relates to a digital image acquisition and a processing method for a small-section underground room. In the method, a 360-degree panoramic digital photographic device is used to configure a computer; a self-jointed movable track is arranged along the bottom longitudinal axis of the small-section underground room, and a trolley is configured; a bracket for the photographic device is arranged on the trolley so that a photographic lens is arranged in the center of the section of the underground room and the central line of the lens is parallel with the longitudinal axis of the underground room; the focal distance of the photographic lens is adjusted to determine the longitudinal movement length of the photographic device, and a corresponding lighting lamp is configured; the trolley is moved to shoot each section of the underground room until the shooting is finished, and digital images collected in one segment and the next section are mutually linked; image processing software of the computer is used to correct, spread and splice the collected underground room images, and then the images are interpreted by using image interpretation software. The digital image acquisition and processing method solves problems existing in small-section underground room close-up photography, raises image splicing quality and efficiency, and has high image quality and high editing and processing efficiency.
Description
Technical field
The present invention relates to a kind of small-section underground room digital image acquisition and disposal route of being used for, belong to the geological exploration techniques field.
Background technology
Small-section underground room is often referred to the underground chamber of cave footpath in 2-5 rice scope, and common light section chamber is a prospecting adit.
In the construction and work progress of underground chamber, need carry out geological record to its geologic structure and characteristic.For a long time, manual type is adopted in the geological record of underground chamber, writes down geological phenomenon and feature in the mode of literal and sketch, and this recording mode not only workload is big, poor accuracy, and easy drain message, and directly perceived inadequately, achievement expression degree varies with each individual.After numeral taking photo technology occurred, a lot of people attempted that digital photography is used for small-section underground room and edit and record, but rarely had the example of success.Main difficulty is: it is difficult 1, to take.Camera lens was over against wall (it is vertical with wall to take direction) when classic method was taken.Because light section chamber narrow space, photo distance excessively closely cause very difficulty of shooting; 2, the location is difficult.When describing the geology achievement in the light section chamber, need the position of accurate description geological phenomenon, generally photography means are difficult to accomplish.3, illumination is difficult.Tradition is taken and is adopted the iodine-tungsten lamp illumination, is difficult to form even illumination.The alternating current of iodine-tungsten lamp use simultaneously, some chamber can not guarantee.4, splicing is difficult.The traditional approach image will be taken respectively by three walls, because illumination unevenness, lens distortion, and problem such as number of pictures is huge, all make very difficulty of splicing.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of small-section underground room digital image acquisition and disposal route at above-mentioned the deficiencies in the prior art, and it takes easy, accurate positioning, and picture quality is good, edits and records the efficient height of processing.
The present invention for the technical scheme that problem adopted of the above-mentioned proposition of solution is:
Adopt 360 ° of panoramic digital picture pick-up devices, the configuration computing machine;
At the bottom of the cave of light section chamber longitudinal axis install can be successive movable rail, dispose dolly on the movable rail, install the fixedly support of picture pick-up device on the dolly, make pick-up lens be positioned at the center of chamber section, and the center line of camera lens (axis) parallels with the chamber longitudinal axis;
Adjust the focal length of pick-up lens, determine the step-length that vertically moves of picture pick-up device, dispose corresponding lighting;
Travelling car carries out segmentation by step-length to chamber to be taken, and the digital picture that each segmentation is gathered before and after making is connected mutually, and movable rail is constantly alternately continued forward front and back, and travelling car constantly moves forward, and finishes until shooting;
Image processing software by computing machine is proofreaied and correct, is launched and splice the chamber image of gathering, and image is made an explanation with image interpretation software by geological personnel at last, finishes small end face chamber digital image acquisition and processing procedure.
Press such scheme, described 360 ° of panoramic digital picture pick-up devices are made up of 360 ° of full shots and digital camera, once take the chamber wall simultaneously, 360 ° of endless belt images of picked-up cave wall.
Press such scheme, the described step-length that vertically moves is provided with by 1/4 of cave footpath, or presses 1/4 setting of rectangle chamber (footrill) the section length of side, finely tunes according to the picture quality of pilot production collection again.
Press such scheme, described chamber section is rectangle, city gate shape or circular arc.
Press such scheme, by the computer picture interpretation software to calibrated, expansion and spliced image carry out that coordinate is demarcated, explains, measured, mark, draw, editor and preserving.
Press such scheme, install displacement transducer on dolly, displacement transducer and computing machine link, and realize step-length and dark counting and the control of cave.
Press such scheme, described lighting adopts the LED light fixture of low-power consumption, installs forward and backward two and overlap the rotatable LED light fixture of doorframe shapes on dolly, to realize by synchronous, the shadowless lighting of photography cave wall.
Press such scheme, described movable rail is divided into 2 sections, and every section is 10 meters, is made up of 5 joint guide rails splicings for every section, and during shooting alternately continue forward in front and back.
Beneficial effect of the present invention is: 1, the panoramic shooting head is used to explore the digital image acquisition of light section chamber, takes direction and cave to parallel, take wall simultaneously, solved the problem of up short; 2, adopt tracks positioned, gamma camera is positioned at chamber section center, by the step-length continuous acquisition, has solved the problem of location, and can realize the automated graphics collection, and track adopts the movable rail of composite assembly, leapfrogs during shooting, has simplified auxiliary facility; 3, adopt the LED light fixture of low-power consumption, and the rotatable light fixture of forward and backward two cover doorframe shapes is installed, solved the problem of even illumination, also save energy consumption; 4, carry out image rectification, expansion and splicing by Computer Image Processing software, improved image connection quality and efficient, picture quality is good, edits and records the efficient height of processing.
Description of drawings
Fig. 1 is an image automated collection systems logical organization synoptic diagram in the one embodiment of the invention.
Fig. 2 is movable rail and a picture pick-up device one-piece construction stereographic map in the one embodiment of the invention.
Fig. 3 is the movable rail structural perspective of one embodiment of the invention.
Fig. 4 is that illumination zone and camera coverage concern synoptic diagram in the one embodiment of the invention.
Fig. 5 is a camera position synoptic diagram in the one embodiment of the invention.
Fig. 6 is the annular panoramic picture of one embodiment of the invention.
Fig. 7 is the unfolded image of annular panoramic picture among Fig. 6.
Fig. 8 is the partial image of an example of the present invention and the enlarged image of explanation.
Embodiment
Further specify specific embodiments of the invention below in conjunction with accompanying drawing.
Auxiliary facility includes image capturing system, low-power consumption shadowless lighting system, track vehicle positioning system.
Image capturing system comprises parts such as 360 ° of panoramic digital picture pick-up devices 13 being made up of DCTV Digital Color Television video camera (DH-HV3102UC) and 360 ° of full shots (SONY), computing machine 8 (notebook computer), the dark controller of cave.Video camera is fixed on the dolly by scalable camera support 12, by adjusting the height of orbital position and scalable camera support, be located at the center of chamber section, and the center line of camera lens (axis) is consistent with the chamber longitudinal axis.The dark controller 6 of cave is made up of displacement transducer, counter, single-chip microcomputer and power supply 7, power supply adaptor.Displacement transducer 5 adopts the E6B2 photoelectric code disk, be installed on the wheel shaft of small rail car, 600 pulses of photoelectric code disk revolution output of the moving week, counter receives the pulse that photoelectric code disk transmits, converting cave to counts deeply, and send to computing machine by USB cable, and send signal according to the step-length of prior setting to video camera by acquisition software, finish automatic shooting.
Low-power consumption shadowless lighting system: form by 6 low-loss and energy-saving LED lightings, 2 12V maintenance-free lead accumulators, 12V → 3V power modules etc.The long 1.2m of LED lighting, cumulative reflection shield and travel(l)ing rest are equipped with in the back side, and each light fixture contains 308 highlighted LED.Respectively it is installed on former and later two dollies during use, forms former and later two doorframe shape structures LED lighting 14,15, illuminate the cave wall from both direction.By adjusting irradiating angle, it is even to make illuminating ray push up in image acquisition region (87 ° of the image acquisition scopes) scope of three walls illumination about footrill, the formation shadowless lighting.The shadowless lighting system adopts direct current supply, uses 2 chargeable storage batterys 11 of 12V-33Ah and 12V (IN) → 3V (OUT) power module to power, but continuous working 8～10 hours behind the full charge.
The track vehicle positioning system: comprise support rack type movable rail, former and later two dollies 10,3, each dolly is installed four wheels 4 all around, and the wheel inboard is provided with seam, matches with movable rail, prevents the dolly derailing.The support rack type movable rail is made up of mounting bracket 2 and removable track 1, and track is the rectangle hollow stainless-steel tube, connect in the connector mode of being inserted in, and fixing by fixed head 17 and bolt 16.Mounting bracket 2 is welded by circular stainless-steel tube and angle steel, adopts caulking groove to add the pin mode with track and being connected of support.The support foot hight of mounting bracket can be adjusted separately, to adapt to the rough situation in underground chamber bottom.Movable rail is divided into 2 sections, and every section is 10 meters, and every section is saved the guide rails splicing by 5 and forms.Link to each other synchronous operation in orbit with connecting link 9 between former and later two dollies.The dolly 10 of front is the supplementary instrument car, and a door font LED lamp group mainly is installed, and lays the accumulator of power supply for it, and the dolly 3 of back is an instrument truck, lays another font lamp group and image capturing system.Adjust the distance of former and later two dollies according to the scalable connecting link of chamber size, make and obtain optimal illumination in the shooting area.
Small-section underground room image acquisition and processing also comprise software systems, and described software systems are made up of image acquisition Control Software, image stretching splicing process software, interpretation software.
The image acquisition Control Software mainly is to cooperate hardware system realization image to control collection automatically.Exposure parameter can be set, gather step-length etc., also be responsible for the control gamma camera simultaneously and take, preserve image.Image stretching splicing process software major function exactly to 360 ° of panoramic digital image of chamber launch, processing such as non-linear lopsided correction, image mosaic, image equalization, form the striograph of facing of chamber wall, as shown in Figure 7.Image interpretation software is to image coordinate demarcation, explanation, measurement, mark, drawing, editor and preservation etc.Interpretation software can carry out length, angle, strike-dip survey to information that image comprises, and with these information editing's arrangements, with the form performance of character, lines, preserves with suitable form.Can also allow simultaneously work such as the geological work personnel carry out that accent such as formation lithology, tectonic structure are painted on image, visual with quick geological record and the chamber geologic information of having realized underground chamber.
The method of small-section underground room image acquisition and processing and process are:
After having installed track and each auxiliary facility, determine the step-length that vertically moves of 360 ° of panoramic digital picture pick-up devices, step-length is pressed 1/4 of cave footpath and is provided with, and finely tunes according to the picture quality of pilot production collection again.The dark controller of cave provides the computer acquisition picture signal by displacement transducer setting, control step-length; 360 ° of panoramic cameras are installed on the dolly, adjust camera mount, make video camera be in the center of chamber section, absorb 360 ° of endless belt images of cave wall; 360 ° of panoramic cameras of computer control are adjusted parameter, obtaining best cave wall image information, and are saved on the hard disk according to controller step-length automatic information collecting cave wall image; Offer the dark controller power source of cave by the DC12V power supply, offer computing machine, illuminating lamp use by power supply adaptor simultaneously.All devices is installed on the dolly, and dolly moves on movable rail, and movable rail is placed in the central authorities of chamber bottom surface, combined and spliced structure before and after movable rail adopts, and alternative splicing reach in front and back during shooting is until the shooting of finishing full cave; 360 ° of endless belt images are the raw image that picture pick-up device obtains, as shown in Figure 6; The displacement transducer of the dark controller of cave is installed on the wheel shaft of dolly, convert the revolution of wheel to cave dark counting and send to computing machine (notebook computer), acquisition software is according to the automatic shooting of the step-length that sets in advance control gamma camera, and with image with the dark (unit: be that filename is kept on the hard disk of computing machine rice) of cave.Computer control location, initial parameter setting, control image acquisition, storage realize accurately location, automated graphics collection continuously; Carry out pattern distortion processing, contact splicing automatically, form the consecutive image of three walls pressing the coordinate arrangement; Carry out work such as image interpretation, measurement, mark, drawing, editor, as shown in Figure 8.
Claims (8)
1, a kind of small-section underground room digital image acquisition and disposal route is characterized in that
Adopt 360 ° of panoramic digital picture pick-up devices, the configuration computing machine;
At the bottom of the cave of light section chamber longitudinal axis install can be successive movable rail, dispose dolly on the movable rail, install the fixedly support of picture pick-up device on the dolly, make pick-up lens be positioned at the center of chamber section, and the center line of camera lens parallels with the chamber longitudinal axis;
Adjust the focal length of pick-up lens, determine the step-length that vertically moves of picture pick-up device, dispose corresponding lighting;
Travelling car carries out segmentation by step-length to chamber to be taken, and the digital picture that each segmentation is gathered before and after making is connected mutually, and movable rail is constantly alternately continued forward front and back, and travelling car constantly moves forward, and finishes until shooting;
Image processing software by computing machine is proofreaied and correct, is launched and splice the chamber image of gathering, and image is made an explanation with image interpretation software by geological personnel at last, finishes small end face chamber digital image acquisition and processing procedure.
2, by described small-section underground room digital image acquisition of claim 1 and disposal route, it is characterized in that described 360 ° of panoramic digital picture pick-up devices are made up of 360 ° of full shots and digital camera, once take the chamber wall simultaneously, 360 ° of endless belt images of picked-up cave wall.
3,, it is characterized in that the described step-length that vertically moves is provided with by 1/4 of cave footpath, or press 1/4 setting of the rectangle chamber section length of side by claim 1 or 2 described small-section underground room digital image acquisition and disposal routes.
4, by claim 1 or 2 described small-section underground room digital image acquisition and disposal routes, it is characterized in that described chamber section is rectangle, city gate shape or circular arc.
5, by claim 1 or 2 described small-section underground room digital image acquisition and disposal routes, it is characterized in that by the computer picture interpretation software to proofread and correct, expansion and spliced image carry out that coordinate is demarcated, explains, measured, mark, draw, editor and preserving.
6, by claim 1 or 2 described small-section underground room geologic prospecting image acquisition and disposal routes, it is characterized in that installing displacement transducer on travelling car, displacement transducer and computing machine link, and realize step-length and dark counting and the control of cave.
7, by claim 1 or 2 described small-section underground room digital image acquisition and disposal routes, it is characterized in that described lighting adopts the LED light fixture of low-power consumption, on dolly, install forward and backward two and overlap the rotatable LED light fixture of doorframe shapes, to realize by synchronous, the shadowless lighting of photography cave wall.
8, by claim 1 or 2 described small-section underground room geologic prospecting image acquisition and disposal routes, it is characterized in that described movable rail is the support rack type movable rail, form that during shooting alternately continue forward in front and back by mounting bracket and removable track.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102682492A (en) * | 2012-05-14 | 2012-09-19 | 青岛秀山移动测量有限公司 | Mobile polling method and device of coal mine vertical shaft |
| CN103808306A (en) * | 2014-01-27 | 2014-05-21 | 长江三峡勘测研究院有限公司（武汉） | Flat plate type construction geologic visualization rapid catalog method based on windows |
| CN112082533A (en) * | 2019-06-13 | 2020-12-15 | 泰科电子(上海)有限公司 | Image acquisition system and image acquisition method |
| CN114372939A (en) * | 2022-03-22 | 2022-04-19 | 成都理工大学 | Image distortion correction method for panoramic photography |
-
2009
- 2009-08-07 CN CN2009100634699A patent/CN101629821B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102682492A (en) * | 2012-05-14 | 2012-09-19 | 青岛秀山移动测量有限公司 | Mobile polling method and device of coal mine vertical shaft |
| CN103808306A (en) * | 2014-01-27 | 2014-05-21 | 长江三峡勘测研究院有限公司（武汉） | Flat plate type construction geologic visualization rapid catalog method based on windows |
| CN103808306B (en) * | 2014-01-27 | 2015-04-08 | 长江三峡勘测研究院有限公司（武汉） | Flat plate type construction geologic visualization rapid catalog method based on windows |
| CN112082533A (en) * | 2019-06-13 | 2020-12-15 | 泰科电子(上海)有限公司 | Image acquisition system and image acquisition method |
| CN114372939A (en) * | 2022-03-22 | 2022-04-19 | 成都理工大学 | Image distortion correction method for panoramic photography |
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