CN102435606B - Method for supporting inspection and identification of line trace by utilizing three-dimensional characteristic data plot - Google Patents
Method for supporting inspection and identification of line trace by utilizing three-dimensional characteristic data plot Download PDFInfo
- Publication number
- CN102435606B CN102435606B CN 201110364168 CN201110364168A CN102435606B CN 102435606 B CN102435606 B CN 102435606B CN 201110364168 CN201110364168 CN 201110364168 CN 201110364168 A CN201110364168 A CN 201110364168A CN 102435606 B CN102435606 B CN 102435606B
- Authority
- CN
- China
- Prior art keywords
- data
- curves
- dimensional
- line trace
- line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Processing Or Creating Images (AREA)
Abstract
The invention relates to a method for supporting inspection and identification of a line trace by utilizing a three-dimensional characteristic data plot. The method comprises the steps of: (1) determining the resolution at the time of acquiring data; (2) installing an field physical evidence on a micro three-dimensional data acquisition instrument, and adjusting the position of the surface of which the line trace is to be collected of the field physical evidence; (3) determining acquisition times of the three-dimensional data and a photo of the line trace, acquiring, numbering and storing in a computer; (4) processing the three-dimensional data by utilizing routine data processing software to obtain a point cloud, and further acquiring multiple three-dimensional characteristic data plots from the point cloud; (5) expressing the data plots on a display of the computer; (6) producing a comparison sample, carrying out steps (1) to (5) on the comparison sample to obtain a photo, a three-dimensional characteristic data plot and a corresponding number of the line trace on the surface of the sample, and storing in the computer; and (7) respectively displaying the three-dimensional characteristic data plots and the photos of the field physical evidence and the comparison sample on the display of the computer one by one for carrying out inspection and identification. The method has the advantages of high inspection efficiency and accurate inspection conclusion.
Description
Technical field
The present invention relates to a kind of three-dimensional feature data and curves of utilizing and support the method that the line trace check is identified.
Background technology
Usually, the modes such as line trace mostly is shearing, wipe draws, shooting form, and the direction on the vestige surface along acting force forms the vestige lines.
Now, the verification of traces personnel are mostly the two dimension checks of carrying out the trace line bar on microscopically or photo, to in evidence at the scene and comparison sample separately the light and shade, width of lines and the coherent situation of docking observe respectively, take make produce described two line traces instrument whether as the expert's conclusion of same object.
Said method to the elevation information of lines be infer, estimate, or even ignore.Separately, the formed line trace of some sharp instruments, can only see baguette on microscope or photo, and the thick lines that are comprised of baguette are extremely not obvious, the width of lines is difficult fixed, highly not quite clear, to such an extent as to when carrying out the lines docking, vertical direction along lines moves, many places can occur all can be to upper result, this docking site is not unique, and therefore, the verification of traces personnel are difficult to make establishing identity or negative check expert's conclusion, the error rate of this check authentication method is higher, has directly affected evidence obtaining work and solving criminal cases.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of three-dimensional feature data and curves of utilizing and supports the method that the line trace check is identified, the method has that checkability is high, check conclusion advantage accurately.
For solving the problems of the technologies described above, the invention provides a kind of three-dimensional feature data and curves of utilizing and support the method that the line trace check is identified, it comprises following processing step:
1) adopt conventional micro-3-D data collection instrument, and according to the kind of line trace, the resolution when determining image data;
2) evidence at the scene is arranged on micro-3-D data collection instrument, adjust the position on line trace to be collected in evidence at the scene surface, make the video camera of described line trace surface and micro-3-D data collection instrument and the primary optical axis of its microlens be vertical position relationship, perhaps described position relationship is controlled in the error range of a permission, and similar line trace will adopt identical or close collection position;
3) according to the concrete condition of evidence at the scene, determine the three-dimensional data of described evidence at the scene lines on surface vestige and the times of collection of photo, operate again 2) micro-3-D data collection instrument in step, adopt the routine data acquisition software in micro-3-D data collection instrument, gather three-dimensional data and photo and be numbered respectively, then, respectively be kept in computing machine with the form of file above-mentioned three-dimensional data and photo;
4) utilize conventional data processing software that the three-dimensional data of the evidence at the scene of collection is processed, when processing, acquisition is specially by the point cloud chart that corresponding three-dimensional data points consists of at every turn:
shear or wipe at general purpose tool the point cloud chart of drawing the line trace that forms and comprise thick line trace and the baguette vestige that is attached on thick line trace, point cloud chart at the bullet surface line trace comprises one crest line vestige and some the thick line traces that are made of little strain line, utilize above-mentioned data processing software, vertical line direction according to thick line trace in point cloud chart is made respectively some vertical lines with certain spacing distance, extracted successively each three-dimensional data points of every vertical line, and will use successively segment link with each three-dimensional data points on the bar vertical line, and then obtain some three-dimensional feature data and curves of the line trace of described line trace surface corresponding site, separately, during each the processing, situation according to each point cloud chart center line bar variation, determine to extract the number of three-dimensional feature data and curves, and be numbered successively according to the position of some three-dimensional feature data and curves on point cloud chart, then be kept in the lump the three-dimensional feature data and curves corresponding with it in computing machine to be numbered filename,
5) utilize conventional software that the three-dimensional feature data and curves is processed, be accredited as precondition with convenient check, the three-dimensional feature data and curves is expressed on the display of computing machine;
6) related request of identifying by check is made the comparison sample, and this sample is repeated 1) to 5) step, obtain the photo, three-dimensional feature data and curves of this sample surface line trace and the above two numbering accordingly separately, be stored in respectively standby inspection in computing machine;
7) evidence at the scene, the comparison three-dimensional feature data and curves of sample and photo are tested on the display of computing machine respectively one by one evaluation.
For can concise description for the purpose of problem, below utilize method that the three-dimensional feature data and curves supports that the line trace check identifies all referred to as this method to of the present invention.
The present invention adopts conventional micro-3-D data collection instrument and data acquisition software, line trace to the evidence at the scene surface carries out the collection of three-dimensional data and photo and they is kept in computing machine, then utilize conventional data processing software that the three-dimensional data of the evidence at the scene of collection is processed, obtain point cloud chart and obtain the three-dimensional feature data and curves by point cloud chart, and they are kept in computing machine; Adopt again said method, obtain comparing three-dimensional data, photo, the three-dimensional feature data and curves of the line trace of sample surface, and they are kept in computing machine; At last, to the evaluation of testing one by one on the display of computing machine respectively of evidence at the scene, the comparison three-dimensional feature data and curves of sample and photo.
the three-dimensional feature data and curves can be true, objective, the microscopic pattern feature that accurately reflects line trace, can accurately show the position relationship between thick lines in line trace, position relationship between thick lines and baguette, position relationship between baguette, more crucial is, thick lines for line trace, medium lines, the feature of baguette and the mutual relationship (as: height of lines, width, mutual distance, the mutual information such as the discrepancy in elevation), can obtain accurately sign and accurately reflection with the respective digital in the three-dimensional feature data and curves.
the present invention utilizes the three-dimensional feature data and curves to the line trace evaluation of testing, overcome the defective of only with two dimensional image, line trace being tested and identifying in the prior art, make the reviewer to the check of line trace by supposition, the perception consciousness of estimating rises to digitizing, information-based, the reason consciousness of electronization, in other words, utilize the height of the line trace that comprises in the three-dimensional feature data and curves, width, distance, the mutual alignment digital information is compared, and utilize the photo performance to reflect the card effect, like this, reduced the difficulty that check is identified, solved the difficult problem of line trace comparison, guaranteed the correctness of check expert's conclusion, improved the efficient that check is identified, good application value and market outlook are arranged.
This method is scientific, rapid and accurate, directly perceived, simple, and this method is to check sublating of authentication method to having now, can predict, and this method is the developing direction that the line trace check is identified.
In sum, this method have that checkability is high, check conclusion advantage accurately.
In the method:
1) conventional micro-3-D data collection instrument described in step is any in micro-optical grating projection 3-D data collection device, laser harvester, probe-type measurement harvester;
Described resolution will determine according to the kind of the instrument that forms line trace, and the line trace that clamp, cut, cutter, screwdriver etc. forms is with the resolution of 4 microns; Line trace on bullet is with the resolution of 2.75 to 3 microns;
When micro-3-D data collection instrument adopts micro-optical grating projection 3-D data collection device, resolution for 4 microns, its collection standard is as follows: require to gather area control at 2.2 * 3 square millimeters and contain at least the data message of 420,000 three-dimensional data points, requiring 1 mm length to gather the three-dimensional data of 250 three-dimensional data points; For the resolution of 2.75 microns, its collection standard is as follows: require to gather area control at 1.5 * 2.1 square millimeters and contain at least the data message of 420,000 three-dimensional data points, requiring 1 mm length to gather the three-dimensional data of 363 three-dimensional data points;
When micro-3-D data collection instrument adopted laser harvester or probe-type to measure harvester, for the resolution of 4 microns, its collection standard was as follows: require 1 mm length to gather the three-dimensional data of 250 three-dimensional data points; For the resolution of 2.75 microns, its collection standard is as follows: require 1 mm length to gather the three-dimensional data of 363 three-dimensional data points.
2) in step, when micro-3-D data collection instrument adopted micro-optical grating projection 3-D data collection device, described error range was controlled as follows:
The line trace surface that clamp, cut, cutter, screwdriver etc. forms will be perpendicular to microscopical primary optical axis, and allowing the difference in height of the lip-deep vestige lines of line trace Width to be controlled within 60 microns, the difference in height of described vestige lines length direction is controlled within 150 microns;
On bullet the position on line trace to be collected surface be in bullet bottom time crest line lower extreme point with the upper part, described position comprises the little strain line zone of time crest line and side thereof, makes the discrepancy in elevation at the same vestige lines head and the tail two ends in described little strain line zone be no more than 100 microns.
3) the routine data acquisition software described in step is any in micro-optical grating projection 3-D data collection software, laser harvester 3-D data collection software, probe-type measurement harvester 3-D data collection software.
4) conventional data processing software described in step is any in Surface software, excel spreadsheet lattice software.
5) processing step that utilizes conventional software that the three-dimensional feature data and curves is processed described in step is:
Utilize conventional software command calculations machine, it is that the amplification of 40 to 200 times is processed that the distance of each three-dimensional data points of Width of three-dimensional feature data and curves is carried out enlargement factor, it is that the amplification of 800 to 1500 times is processed that the distance of the short transverse of each three-dimensional data points is carried out enlargement factor, the three-dimensional feature data and curves is made corresponding mobile and angular setting, the morphological feature that makes the three-dimensional feature data and curves obviously, outstanding, and then make the three-dimensional feature data and curves in the proper ratio, suitable position, suitable color express on the display of computing machine;
Described conventional software is any in excel spreadsheet lattice software, Surface software.
7) check described in step is identified, comprises following processing step:
A) utilize conventional Compare System software, keyboard and the cursor of operation computing machine are shifted and angular setting to the three-dimensional feature data and curves of evidence at the scene with the comparison sample, and described Compare System software is excel spreadsheet lattice softwares;
B) convex-concave big rise and fall separately on the some three-dimensional feature data and curves in first finding respectively a), each section that shared three-dimensional data points is many, they are respectively the position at thick lines place on described three-dimensional feature data and curves, the first similarities and differences of the overall described three-dimensional feature data and curves of observation and comparison, then the fluctuating height of the described three-dimensional feature data and curves of local observation and comparison, width, the steep slow quantity that reaches the section of big rise and fall, position, just, width, mutual spacing from the similarities and differences of position relationship;
C) as b) in can reflect the quantity, position of the fluctuating section of thick lines, just, width, mutual spacing from position relationship through relatively finding when similar or identical, the similarities and differences of the narrow setback section on more described fluctuating section again, as as described in finding, narrow setback section is also identical, and the instrument that can obtain producing described two line traces is the comparative result of same object;
As b) described in can reflect the quantity, position of the fluctuating section of thick lines, just, width, mutual spacing when having essential difference with position relationship, the instrument that can obtain producing described two line traces is not the comparative result of same object;
D) utilize photo to reflect and demonstrate,prove and obtain checking expert's conclusion: utilize conventional picture processing software, described picture processing software is Adobe Photoshop picture processing software, vestige lines on the photo of evidence at the scene and comparison sample are docked, if the vestige lines of joint coincide, link up, the instrument that can reflect described two line traces of card generation is the check conclusion of same object; Vice versa is completed check and is identified.
Description of drawings
Fig. 1 is the photo (photo is numbered Z2) of line trace of the upper shear surface of evidence at the scene (aluminum steel) of the embodiment of the present invention one;
Fig. 2 after utilizing conventional Surface software that the three-dimensional data that is numbered S2 of the evidence at the scene (aluminum steel) of collection is processed in the embodiment of the present invention one, obtains the partial points cloud atlas that is made of corresponding three-dimensional data points;
Fig. 3 is the three-dimensional feature data and curves that is numbered S2-001 that obtains on shear surface of evidence at the scene (aluminum steel) shearing end of the embodiment of the present invention one, the comparison picture of comparing the three-dimensional feature data and curves that is numbered S2 '-001 that obtains on shear surface of sample (aluminum steel) shearing end;
Fig. 4 is the photo (photo is numbered Z2 ') of line trace of the upper shear surface of comparison sample (aluminum steel) of the embodiment of the present invention one;
Fig. 5 utilizes conventional Adobe Photoshop picture processing software in the embodiment of the present invention one, to the photo (photo is numbered Z2) of evidence at the scene (aluminum steel) with compare the local pictures that the vestige lines on the photo (photo is numbered Z2 ') of sample (aluminum steel) dock;
Fig. 6 is the part (for the part of this bullet rifling photo) of the surperficial line trace photo (photo is numbered Z2002911-1) of the evidence at the scene (bullet) of the embodiment of the present invention two;
Fig. 7 is that after utilizing conventional Surface software that the three-dimensional data that is numbered D2002911-1 of the evidence at the scene (bullet) of collection is processed in the embodiment of the present invention two, point cloud chart is amplified in the part that obtains to be made of corresponding three-dimensional data points;
Fig. 8 is the comparison picture of the three-dimensional feature data and curves that is numbered D2002911 '-4-001 that obtains on the three-dimensional feature data and curves that is numbered D2002911-1-001 that obtains on evidence at the scene (bullet) surface of the embodiment of the present invention two, comparison sample (bullet) surface;
Fig. 9 is the part (for the part of this bullet rifling photo) of the surperficial line trace photo (photo is numbered Z2002911 '-4) of the comparison sample (bullet) of the embodiment of the present invention two;
Figure 10 utilizes conventional Adobe Photoshop picture processing software in the embodiment of the present invention two, to the photo (photo is numbered Z2002911-1) of evidence at the scene (bullet) with compare the local pictures that the vestige lines on the photo (photo is numbered Z2002911 '-4) of sample (bullet) dock.
Embodiment
Below can further be well understood to the present invention by embodiment given below.But they are not limitation of the invention.
Embodiment one
Utilize the three-dimensional feature data and curves to support the method that the line trace check is identified, it comprises following processing step:
1) enchashment field material evidence, namely one bench vice is sheared the diameter obtain is one section aluminum steel (following all call on-the-spot aluminum steel) of 1.5 millimeters, adopt conventional micro-optical grating projection 3-D data collection device, the collection of three-dimensional data is carried out in preparation to the line trace on on-the-spot aluminum steel, when determine gathering three-dimensional data with the resolution of 4 microns, resolution for 4 microns, its collection standard is as follows: require to gather area control at 2.2 * 3 square millimeters and contain at least the data message of 420,000 three-dimensional data points, require 1 mm length to gather the three-dimensional data of 250 three-dimensional data points, the title of the manufacturer of described micro-optical grating projection 3-D data collection device, the address, postcode, phone is respectively: Shenyang is with joining high and new technology company of group, the lane is filled just No. 18 along the city street in Dadong District east in Shenyang City, 110042, 024-89700616,
2) on-the-spot aluminum steel is arranged on the fixture of micro-optical grating projection 3-D data collection device, adjust the position on line trace to be collected in on-the-spot aluminum steel surface, the position relationship of the primary optical axis of the video camera of described line trace surface and micro-optical grating projection 3-D data collection device and its microlens is controlled in the error range of a permission, described error range is controlled as follows: bench vice forms line trace surface will be perpendicular to microscopical primary optical axis, and allow the difference in height of the lip-deep vestige lines of line trace Width to be controlled within 60 microns, the difference in height of described vestige lines length direction is controlled within 150 microns,
3) shearing end of on-the-spot aluminum steel forms two relative shear surfaces, therefore determine that the three-dimensional data of on-the-spot aluminum steel lines on surface vestige and the times of collection of photo are twice, operate again 2) micro-optical grating projection 3-D data collection device in step, adopt the micro-optical grating projection 3-D data collection software (for the conventional software that carries in this device) in this device, gather three-dimensional data and photo and be numbered respectively, then, with above-mentioned three-dimensional data, photo numbering separately is as filename, respectively be kept in computing machine with the form of file above-mentioned three-dimensional data and photo, the numbering of the three-dimensional data of twice collection is respectively: S1, S2, and the numbering of the photo of twice collection is respectively: Z1, Z2, on on-the-spot aluminum steel, the photo Z2 of the line trace of a shear surface is referring to Fig. 1, and photo Z1 is not shown,
4) utilize conventional Surface software that the three-dimensional data of the on-the-spot aluminum steel of collection is processed, the title of the manufacturer of described Surface software, address, postcode, phone, fax are respectively: company limited of Microsoft (China), the capable square of sharp star, No. 8, Wangjing, Chaoyang District, Beijing City street Microsoft mansion, 100102,010-59178888,010-59258588 when processing at every turn, acquisition is specially by the point cloud chart that corresponding three-dimensional data points consists of:
After the three-dimensional data that is numbered S2 was processed, the partial points cloud atlas of acquisition was referring to Fig. 2, and after the three-dimensional data that is numbered S1 was processed, the point cloud chart of acquisition omitted, not shown;
point cloud chart at Fig. 2 comprises thick line trace A, thick line trace B, thick line trace C and be attached to thick line trace A, thick line trace B, baguette vestige on thick line trace C (the baguette vestige is not marked piece number in Fig. 2), during each the processing, situation according to lines variation in point cloud chart, number that determine to extract three-dimensional feature data and curves (following to the three-dimensional feature data and curves all referred to as data and curves) is two, utilize above-mentioned data processing software, according to thick line trace A in point cloud chart, thick line trace B, the vertical line direction of thick line trace C is made respectively vertical line L1 with the spacing distance of 0.5 millimeter, vertical line L2, extracted successively each three-dimensional data points of every vertical line, and will use successively segment link with each three-dimensional data points on the bar vertical line, and then obtain two data curves of the line trace of described line trace surface corresponding site, and be numbered successively according to the position of two data curves on point cloud chart, then be kept in the lump the data and curves corresponding with it in computing machine to be numbered filename,
The method for numbering serial of described data and curves is: data and curves is from the lines origin or beginning of lines on surface vestige, to the lines terminal side to sequence successively, generate one by one three-figure sequence number, sequence number is placed on respectively the back of numbering of the three-dimensional data of twice collection by horizontal line, as the complete numbering of data and curves, in the lump be kept in computing machine as filename and the corresponding data curve of corresponding data curve complete numbering;
By above-mentioned method for numbering serial, two data curves that obtain on shear surface of shearing end of on-the-spot aluminum steel be numbered S1-001, S1-002, two data curves that obtain on another shear surface of the shearing end of on-the-spot aluminum steel be numbered S2-001, S2-002;
5) utilize conventional excel spreadsheet lattice software to data curve S 1-001, data and curves S1-002, data and curves S2-001, data and curves S2-002 carries out convergent-divergent, mobile, the processing such as angular setting, the title of the manufacturer of described excel spreadsheet lattice software, the address, postcode, phone, fax is respectively: company limited of Microsoft (China), the capable square of sharp star, No. 8, Wangjing, Chaoyang District, Beijing City street Microsoft mansion, 100102, 010-59178888, 010-59258588, be accredited as precondition with convenient check, make four data curve representations on the display of computing machine,
The described processing step that utilizes conventional software that the data curve is processed is:
utilize excel spreadsheet lattice software instruction computing machine, it is that the amplification of 40 times is processed that the distance of each three-dimensional data points of Width of described four data curves is carried out enlargement factor, it is that the amplification of 1000 times is processed that the distance of the short transverse of each three-dimensional data points is carried out enlargement factor, and then with the peak of four data curves and the position of paddy appearance, quantity, width, distance between peak and paddy is expressed more highlightedly on display, four data curves are made corresponding mobile and angular setting, make the morphological feature of four data curves obvious, outstanding, and then make four data curves in the proper ratio, suitable position, suitable color is expressed on the display of computing machine,
Data and curves S2-001 is referring to Fig. 3, and data and curves S2-002, data and curves S1-001, data and curves S1-002 are not shown;
6) related request of identifying by check, make the comparison sample, that is: that bench vice employing 1), by cutting edge positions different on it, be that the aluminum steel of 1.5 millimeters is sheared five times to diameter respectively, obtain six sections aluminum steels (the following comparison aluminum steel that all is called), 20 shear surfaces to six sections comparison aluminum steels, repeat respectively 1) to 5) step, obtain respectively the data and curves, photo of six sections comparison aluminum steel lines on surface vestiges and the above two numbering accordingly separately, be stored in respectively standby inspection in computing machine;
for the purpose of succinctly clearly describing the problem, the below only provides the data and curves of lines on surface vestige of two shear surfaces of one section comparison aluminum steel same shearing end, photo and the above two are numbering accordingly separately, and they are stored in respectively standby inspection in computing machine: the numbering of the data and curves that obtains on described two shear surfaces is respectively: S1 '-001, S1 '-002, S2 '-001, S2 '-002, data and curves S2 '-001 is referring to Fig. 3, data and curves S2 '-002, data and curves S1 '-001, data and curves S1 '-002 is not shown, the numbering of the photo of the lines on surface vestige of described two shear surfaces is respectively: Z1 ', Z2 ', photo Z2 ' is referring to Fig. 4, photo Z1 ' is not shown,
7) on-the-spot aluminum steel, the comparison data and curves of aluminum steel and photo are tested on the display of computing machine respectively one by one evaluation.
The check of on-the-spot aluminum steel and six comparison aluminum steels is identified and will be carried out seriatim respectively, but, for the purpose of succinctly clearly describing the problem, the below only provides on-the-spot aluminum steel and one of them compares the concrete technology step that aluminum steel can be made the check evaluation of the same conclusion.
Described check is identified, is comprised following processing step:
A) utilize conventional excel spreadsheet lattice software, keyboard and the cursor of operation computing machine, four data curves (their numbering is respectively: S1 '-001, S1 '-002, S2 '-001, S2 '-002) to four data curves (their numbering is respectively: S1-001, S1-002, S2-001, S2-002) of on-the-spot aluminum steel and comparison aluminum steel are shifted and angular setting, in order to find best observation, comparison position on display;
B) convex-concave big rise and fall separately on four data curves of four data curves of on-the-spot aluminum steel and comparison aluminum steel in first finding respectively a), each section that shared three-dimensional data points is many, they are respectively the position at thick lines place on described data and curves, the first similarities and differences of the overall described data and curves of observation and comparison, then the fluctuating height of the described data and curves of local observation and comparison, width, the steep slow quantity that reaches the section of big rise and fall, position, just, width, mutual spacing from the similarities and differences of position relationship;
c) referring to Fig. 3, be specifically described as an example of the data and curves S2 '-001 of the data and curves S2-001 of on-the-spot aluminum steel and comparison aluminum steel example: the quantity that can reflect the fluctuating section of thick lines in described two data and curves, the position, just, width, mutual spacing from position relationship through relatively finding when identical, the similarities and differences of the narrow setback section on more described fluctuating section again, find that described narrow setback section is also identical, the instrument that obtains producing described two line traces is same as the comparative result of bench vice, separately, to b) the middle Comparison that remains the corresponding data curve, here just give unnecessary details no longer one by one,
D) utilize photo to reflect and demonstrate,prove and obtain checking expert's conclusion:
For the purpose of clearly demonstrating problem, the horizontal butted line L3 being convenient to distinguish on-the-spot aluminum steel photo Z2 and comparing aluminum steel photo Z2 ' docking site is set in Fig. 5, the top photo of butted line L3 is the local pictures of on-the-spot aluminum steel photo Z2, and the below photo of butted line L3 is the local pictures of comparison aluminum steel photo Z2 ';
referring to Fig. 5, be specifically described for example take on-the-spot aluminum steel photo Z2 and comparison aluminum steel photo Z2 ': the Adobe Photoshop picture processing software that utilizes routine, the title of the manufacturer of described Adobe Photoshop picture processing software, the address, postcode, phone, fax is respectively: Chinese agency of Adobe company, No. one, China International Trade Centre's GuoMao Building 9 floor 0909 Jianguomenwai Dajie, 100004, 010-58657700, 010-58657701, vestige lines on on-the-spot aluminum steel photo Z2 and comparison aluminum steel photo Z2 ' are docked, the vestige lines of finding joint coincide, coherent, the instrument that can reflect described two line traces of card generation is same as the check conclusion of bench vice, completing check identifies,
Need to prove, the card process is reflected in the docking of on-the-spot aluminum steel photo Z1 and comparison aluminum steel photo Z1 ', and the card process is reflected in on-the-spot aluminum steel photo and the docking that all the other five comparison aluminum steel photos carry out respectively one by one, just give unnecessary details no longer one by one here.
Embodiment two
Utilize the three-dimensional feature data and curves to support the method that the line trace check is identified, it comprises following processing step:
1) enchashment field material evidence, be that rifle number is a bullet crossing of 2002911 domestic six or four formula pistol shootings (following all be called on-the-spot bullet), adopt conventional micro-optical grating projection 3-D data collection device, the collection of three-dimensional data is carried out in preparation to the line trace on on-the-spot bullet, when determine gathering three-dimensional data with the resolution of 2.75 microns, resolution for 2.75 microns, its collection standard is as follows: require to gather area control at 1.5 * 2.1 square millimeters and contain at least the data message of 420,000 three-dimensional data points, require 1 mm length to gather the three-dimensional data of 363 three-dimensional data points,
2) on-the-spot bullet is arranged on the fixture of micro-optical grating projection 3-D data collection device, adjust the position on line trace to be collected in on-the-spot bullet surface, the video camera of described line trace surface and micro-optical grating projection 3-D data collection device and the primary optical axis of its microlens are controlled in the error range of a permission, described error range is controlled as follows: on bullet the position on line trace to be collected surface be in bullet bottom time crest line lower extreme point with the upper part, described position comprises the little strain line zone of time crest line and side (for the left side) thereof, make the discrepancy in elevation at the same vestige lines head and the tail two ends in described little strain line zone be no more than 100 microns,
3) there are four inferior crest line line traces and corresponding little strain line vestige regional on on-the-spot bullet, therefore determine that the three-dimensional data of on-the-spot bullet surface line trace and the times of collection of photo are four times, operate again 2) micro-optical grating projection 3-D data collection device in step, adopt the micro-optical grating projection 3-D data collection software (for the conventional software that carries in this device) in this device, gather three-dimensional data and photo and be numbered respectively, then, with above-mentioned three-dimensional data, photo numbering separately is as filename, respectively be kept in computing machine with the form of file above-mentioned three-dimensional data and photo,
The numbering of the three-dimensional data that gathers for four times is respectively: D2002911-1, D2002911-2, D2002911-3, D2002911-4, the numbering of the photo that gathers for four times is respectively: Z2002911-1, Z2002911-2, Z2002911-3, Z2002911-4, the part of the photo (photo is numbered Z2002911-1) of one the little strain line of crest line zone A and left side thereof zone B of on-the-spot bullet surface is referring to Fig. 6, and photo Z2002911-2, photo Z2002911-3, photo Z2002911-4 are not shown;
4) utilize conventional Surface software that the three-dimensional data of the on-the-spot bullet of collection is processed, when processing, acquisition is specially by the point cloud chart that corresponding three-dimensional data points consists of at every turn:
After the three-dimensional data that is numbered D2002911-1 was processed, the partial points cloud atlas of acquisition was referring to Fig. 7.After the three-dimensional data that is numbered D2002911-2, D2002911-3, D2002911-4 was processed, the point cloud chart of acquisition omitted, not shown;
point cloud chart at Fig. 7 comprises one crest line vestige A " and some thick line trace B that are made of little strain line ", during each the processing, situation according to lines variation in point cloud chart, number that determine to extract three-dimensional feature data and curves (following to the three-dimensional feature data and curves all referred to as data and curves) is 20, utilize above-mentioned data processing software, according to thick line trace B in point cloud chart " the vertical line direction with the spacing distance of 0.02 millimeter, divide and make vertical line L1 20 times, vertical line L2 vertical line L20 (only illustrates vertical line L1 in Fig. 7, vertical line L2, vertical line L3, the residue vertical line is not shown), extracted successively each three-dimensional data points of every vertical line, and will use successively segment link with each three-dimensional data points on the bar vertical line, and then obtain 20 data curves of the line trace of described line trace surface corresponding site, and be numbered successively according to the position of these data and curves on point cloud chart, then be kept in the lump the data and curves corresponding with it in computing machine to be numbered filename,
The method for numbering serial of described data and curves is: data and curves is from the lines origin or beginning (being the bullet end) of line trace, sort successively to lines terminal (being the projectile tail end) direction, generate one by one three-figure sequence number, sequence number is placed on respectively the back of the numbering of the three-dimensional data that gathers by horizontal line, as the complete numbering of data and curves, in the lump be kept in computing machine as filename and the corresponding data curve of corresponding data curve complete numbering;
By above-mentioned method for numbering serial, the numbering of 20 data curves that obtain in the point cloud chart of Fig. 7 be respectively D2002911-1-001 ..., D2002911-1-020 (middle numbering omit);
to being numbered D2002911-2, D2002911-3, after processing, the three-dimensional data of D2002911-4 respectively obtains a point cloud chart, can obtain again 20 data curves in the every bit cloud atlas, by above-mentioned method for numbering serial, 20 data curves that obtain in the every bit cloud atlas are numbered, be respectively: D2002911-2-001, D2002911-2-020 (middle numbering is omitted), D2002911-3-001, D2002911-3-020 (middle numbering is omitted), D2002911-4-001, D2002911-4-020 (middle numbering is omitted),
Described data and curves is the data and curves that obtains on on-the-spot bullet surface;
5) utilize excel spreadsheet lattice software to carry out respectively the processing such as convergent-divergent, movement, angular setting to corresponding every 20 data curves, be accredited as precondition with convenient check, make corresponding every 20 data curve representations on the display of computing machine;
the described processing step that utilizes conventional software that corresponding every 20 data curves are processed is: utilize excel spreadsheet lattice software instruction computing machine, it is that the amplification of 40 times is processed that the distance of each three-dimensional data points of Width of corresponding every 20 data curves is carried out enlargement factor, it is that the amplification of 1000 times is processed that the distance of the short transverse of each three-dimensional data points is carried out enlargement factor, and then with the peak of corresponding every 20 data curves and the position of paddy appearance, quantity, width, distance between peak and paddy is expressed more highlightedly on display, corresponding every 20 data curves are made corresponding mobile and angular setting, make the morphological feature of corresponding every 20 data curves obvious, outstanding, and then make corresponding every 20 data curves in the proper ratio, suitable position, suitable color is expressed on the display of computing machine,
To be numbered D2002911-1-001 ..., D2002911-1-020 20 data curves process respectively after, that data curve that only will be numbered D2002911-1-001 is shown in Figure 8, remains 19 data curves not shown in Fig. 8;
In addition, to be numbered D2002911-2-001 ..., D2002911-2-020 20 data curves process respectively after, described 20 data curves are not shown in Fig. 8;
To be numbered D2002911-3-001 ..., D2002911-3-020 20 data curves process respectively after, described 20 data curves are not shown in Fig. 8;
To be numbered D2002911-4-001 ..., D2002911-4-020 20 data curves process respectively after, described 20 data curves are not shown in Fig. 8;
6) related request of identifying by check, make the comparison sample, that is: adopt 1) in that rifle number be 2002911 domestic six or four formula pistols, shooting obtains a bullet (the following comparison bullet that all is called) again, the comparison bullet is repeated 1) to 5) step, obtain respectively comparing the data and curves, photo of bullet surface line trace and the above two numbering accordingly separately, be stored in respectively standby inspection in computing machine, be specially:
The numbering of the three-dimensional data that gathers for four times is respectively: D2002911 '-1, D2002911 '-2, D2002911 '-3, D2002911 '-4;
The numbering of the photo that gathers for four times is respectively: Z2002911 '-1, Z2002911 '-2, Z2002911 '-3, Z2002911 '-4, wherein: the part of the photo (photo is numbered Z2002911 '-4) of one of bullet surface crest line zone A ' of comparison and left side little strain line zone B ' thereof is referring to Fig. 9, and photo Z2002911 '-1, photo Z2002911 '-2, photo Z2002911 '-3 are not shown;
Utilize conventional Surface software that the three-dimensional data of the comparison bullet of four collections is processed respectively, during each the processing, each obtains a point cloud chart that is made of corresponding three-dimensional data points (totally four point cloud charts, described point cloud chart is not shown in the accompanying drawings), can obtain again 20 data curves in the every bit cloud atlas, be respectively:
Data and curves D2002911 '-1-001 ..., data and curves D2002911 '-1-020 (middle data and curves omit);
Data and curves D2002911 '-2-001 ..., data and curves D2002911 '-2-020 (middle data and curves omit);
Data and curves D2002911 '-3-001 ..., data and curves D2002911 '-3-020 (middle data and curves omit);
And each above-mentioned 20 data curves are all not shown in Fig. 8;
Data and curves D2002911 '-4-001 ..., data and curves D2002911 '-4-020 (middle data and curves omit), wherein: data and curves D2002911 '-4-001 remains 19 data curves not shown in Fig. 8 referring to Fig. 8;
The data and curves of described data and curves for obtaining on the comparison bullet surface;
7) to the evaluation of testing one by one on the display of computing machine respectively of on-the-spot bullet, the comparison data and curves of bullet and photo.
The check of 20 data curves in 20 data curves in each point cloud chart of on-the-spot bullet and each point cloud chart of comparison bullet identifies and will carry out seriatim respectively, and described check is identified, comprised following processing step:
A) utilize conventional excel spreadsheet lattice software, keyboard and the cursor of operation computing machine, to every data curve in a point cloud chart of on-the-spot bullet respectively with the comparison bullet four point cloud charts in totally 80 data curves be shifted seriatim and angular setting so that find on display best observation, the comparison position;
B) convex-concave big rise and fall separately on 80 data curves of every data curve of on-the-spot bullet and comparison bullet in first finding respectively a), each section that shared three-dimensional data points is many, they are respectively the position at thick lines place on described data and curves, the first overall similarities and differences of the described data and curves of observation and comparison seriatim, then the fluctuating height of the local described data and curves of observation and comparison seriatim, width, the steep slow quantity that reaches the section of big rise and fall, position, just, width, mutual spacing from the similarities and differences of position relationship;
C) referring to Fig. 8, be specifically described as an example of the data and curves D2002911 ' of the data and curves D2002911-1-001 of on-the-spot bullet and comparison bullet-4-001 example: when the quantity that can reflect the fluctuating section of thick lines in described two data and curves, position, just, width, mutual spacing from position relationship through relatively finding when identical, the similarities and differences of the narrow setback section on more described fluctuating section again, find that described narrow setback section is also identical, described two data and curves approach on form;
Separately, for the data and curves D2002911-1-002 of on-the-spot bullet ..., data and curves D2002911-1-020 (remaining 19) and comparison bullet the Comparison one by one of 80 data curves, for b) in every data curve of residue of on-the-spot bullet and the Comparison one by one of 80 data curves of comparison bullet, all give unnecessary details no longer one by one here and represented in the accompanying drawings;
Like this, the instrument that obtains producing described two line traces is the comparative result with leader's rifle;
D) utilize photo to reflect and demonstrate,prove and obtain checking expert's conclusion:
For the purpose of clearly demonstrating problem, the horizontal butted line L6 being convenient to distinguish on-the-spot bullet photo Z2002911-1 and comparing bullet photo Z2002911 '-4 docking site is set in Figure 10, the top photo of butted line L6 is the local pictures of on-the-spot bullet photo Z2002911-1, the below photo of butted line L6 is the local pictures of comparison bullet photo Z2002911 '-4, and the zone between dot-and-dash line L4, the L5 that arranges in Figure 10 is little strain line vestige zone;
Referring to Figure 10, be specifically described for example take on-the-spot bullet photo Z2002911-1 and comparison bullet photo Z2002911 '-4: the Adobe Photoshop picture processing software that utilizes routine, vestige lines on on-the-spot bullet photo Z2002911-1 and comparison bullet photo Z2002911 '-4 are docked, the vestige lines of finding joint coincide, link up, the instrument that can reflect described two line traces of card generation is the check conclusion with leader's rifle, completes check and identifies;
need to prove, to on-the-spot bullet photo Z2002911-1 and comparison bullet photo Z2002911 '-1, comparison bullet photo Z2002911 '-2, the card process is reflected in the docking of comparison bullet photo Z2002911 '-3, and to on-the-spot bullet photo Z2002911-2, on-the-spot bullet photo Z2002911-3, on-the-spot bullet photo Z2002911-4 and comparison bullet photo Z2002911 '-1, comparison bullet photo Z2002911 '-2, comparison bullet photo Z2002911 '-3, the card process is reflected in the docking that comparison bullet photo Z2002911 '-4 carries out respectively one by one, here just give unnecessary details no longer one by one.
Separately, corresponding identical in the hardware that utilizes in embodiment two, the manufacturer of software and relevant information thereof and embodiment one.
Need to prove:
1) conventional micro-3-D data collection instrument described in step also can be any in laser harvester, probe-type measurement harvester;
Laser harvester (as laser scanning confocal microscopy etc.) has many manufacturer production both at home and abroad, Olympus (China)Co., Ltd. just produces " laser scanning confocal microscopy ", the address of the said firm: No. 10, JiuXianQiao Road, Chaoyang District, BeiJing City perseverance is led to Business Park B12C seat 1-2 floor, postcode: 100015, phone: 010-59756116-1701, fax: 010-59756433;
Probe-type is measured harvester many manufacturers produce both at home and abroad, Germany Brooker AXS company limited just produces " probe-type surface profiler ", the address of the said firm: Room 5201, No. 11 wide China Telecom mansions, South Street ,Zhongguangcun ,Beijing Haidian District, postcode 100081, phone: 010-68486946-51, fax: 010-88417855;
3) the routine data acquisition software described in step also can be any in laser harvester 3-D data collection software, probe-type measurement harvester 3-D data collection software, and described two softwares are the software that carries in existing laser harvester, probe-type measurement harvester;
4) described in step, conventional data processing software also can be excel spreadsheet lattice software;
5) conventional software described in step also can be Surface software etc.
Above-described is only two kinds of embodiments of the present invention.Should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the principle of the invention, can also make some modification and improvement, these also should be considered as belonging to protection scope of the present invention.
Claims (7)
1. utilize the three-dimensional feature data and curves to support the method that the line trace check is identified, it comprises following processing step:
1) adopt conventional micro-3-D data collection instrument, the resolution when determining image data;
2) evidence at the scene is arranged on micro-3-D data collection instrument, adjust the position on line trace to be collected in evidence at the scene surface, make the video camera of described line trace surface and micro-3-D data collection instrument and the primary optical axis of its microlens be vertical position relationship;
3) operation 2) the micro-3-D data collection instrument in step, adopt the routine data acquisition software in micro-3-D data collection instrument, gather three-dimensional data and photo and be numbered respectively, then, respectively being kept in computing machine with the form of file above-mentioned three-dimensional data and photo;
4) utilize conventional data processing software that the three-dimensional data of the evidence at the scene of collection is processed, during each the processing, then the point cloud chart that acquisition is made of corresponding three-dimensional data points, some three-dimensional feature data and curves and corresponding numbering thereof are kept at the three-dimensional feature data and curves corresponding with it in computing machine to be numbered filename in the lump;
5) utilize conventional software that the three-dimensional feature data and curves is processed, the three-dimensional feature data and curves is expressed on the display of computing machine;
6) related request of identifying by check is made the comparison sample, and this sample is repeated 1) to 5) step, obtain the photo, three-dimensional feature data and curves of this sample surface line trace and the above two numbering accordingly separately, be stored in respectively standby inspection in computing machine;
7) evidence at the scene, the comparison three-dimensional feature data and curves of sample and photo are tested on the display of computing machine respectively one by one evaluation;
It is characterized in that:
1) according to the kind of line trace, the resolution when determining image data;
2) or described position relationship be controlled in the error range of a permission, similar line trace will adopt identical or close collection position;
3) according to the shear surface of evidence at the scene or the number of line trace, determine the three-dimensional data of described evidence at the scene lines on surface vestige and the times of collection of photo, then operate 2) micro-3-D data collection instrument in step;
4) utilize conventional data processing software that the three-dimensional data of the evidence at the scene of collection is processed, be specially:
shear or wipe at general purpose tool the point cloud chart of drawing the line trace that forms and comprise thick line trace and the baguette vestige that is attached on thick line trace, point cloud chart at the bullet surface line trace comprises one crest line vestige and some the thick line traces that are made of little strain line, utilize above-mentioned data processing software, vertical line direction according to thick line trace in point cloud chart is made respectively some vertical lines with certain spacing distance, extracted successively each three-dimensional data points of every vertical line, and will use successively segment link with each three-dimensional data points on the bar vertical line, and then obtain some three-dimensional feature data and curves of the line trace of described line trace surface corresponding site, separately, during each the processing, situation according to each point cloud chart center line bar variation, determine to extract the number of three-dimensional feature data and curves, and be numbered successively according to the position of some three-dimensional feature data and curves on point cloud chart,
5) be accredited as precondition with convenient check, the three-dimensional feature data and curves is expressed on the display of computing machine.
2. the three-dimensional feature data and curves of utilizing according to claim 1 is supported the method that the line trace check is identified, it is characterized in that:
1) conventional micro-3-D data collection instrument described in step is any in micro-optical grating projection 3-D data collection device, laser harvester, probe-type measurement harvester;
Described resolution will determine according to the kind of the instrument that forms line trace, and the line trace that clamp, cut, cutter, screwdriver etc. forms is with the resolution of 4 microns; Line trace on bullet is with the resolution of 2.75 to 3 microns;
When micro-3-D data collection instrument adopts micro-optical grating projection 3-D data collection device, resolution for 4 microns, its collection standard is as follows: require to gather area control at 2.2 * 3 square millimeters and contain at least the data message of 420,000 three-dimensional data points, requiring 1 mm length to gather the three-dimensional data of 250 three-dimensional data points; For the resolution of 2.75 microns, its collection standard is as follows: require to gather area control at 1.5 * 2.1 square millimeters and contain at least the data message of 420,000 three-dimensional data points, requiring 1 mm length to gather the three-dimensional data of 363 three-dimensional data points;
When micro-3-D data collection instrument adopted laser harvester or probe-type to measure harvester, for the resolution of 4 microns, its collection standard was as follows: require 1 mm length to gather the three-dimensional data of 250 three-dimensional data points; For the resolution of 2.75 microns, its collection standard is as follows: require 1 mm length to gather the three-dimensional data of 363 three-dimensional data points.
3. the three-dimensional feature data and curves of utilizing according to claim 1 is supported the method that the line trace check is identified, it is characterized in that:
2) in step, when micro-3-D data collection instrument adopted micro-optical grating projection 3-D data collection device, described error range was controlled as follows:
The line trace surface that clamp, cut, cutter, screwdriver etc. forms will be perpendicular to microscopical primary optical axis, and allowing the difference in height of the lip-deep vestige lines of line trace Width to be controlled within 60 microns, the difference in height of described vestige lines length direction is controlled within 150 microns;
On bullet the position on line trace to be collected surface be in bullet bottom time crest line lower extreme point with the upper part, described position comprises the little strain line zone of time crest line and side thereof, makes the discrepancy in elevation at the same vestige lines head and the tail two ends in described little strain line zone be no more than 100 microns.
4. the three-dimensional feature data and curves of utilizing according to claim 1 is supported the method that the line trace check is identified, it is characterized in that:
3) the routine data acquisition software described in step is any in micro-optical grating projection 3-D data collection software, laser harvester 3-D data collection software, probe-type measurement harvester 3-D data collection software.
5. the three-dimensional feature data and curves of utilizing according to claim 1 is supported the method that the line trace check is identified, it is characterized in that:
4) conventional data processing software described in step is any in Surface software, excel spreadsheet lattice software.
6. the three-dimensional feature data and curves of utilizing according to claim 1 is supported the method that the line trace check is identified, it is characterized in that:
5) processing step that utilizes conventional software that the three-dimensional feature data and curves is processed described in step is:
Utilize conventional software command calculations machine, it is that the amplification of 40 to 200 times is processed that the distance of each three-dimensional data points of Width of three-dimensional feature data and curves is carried out enlargement factor, it is that the amplification of 800 to 1500 times is processed that the distance of the short transverse of each three-dimensional data points is carried out enlargement factor, the three-dimensional feature data and curves is made corresponding mobile and angular setting, the morphological feature that makes the three-dimensional feature data and curves obviously, outstanding, and then make the three-dimensional feature data and curves in the proper ratio, suitable position, suitable color express on the display of computing machine;
Described conventional software is any in excel spreadsheet lattice software, Surface software.
7. the three-dimensional feature data and curves of utilizing according to claim 1 is supported the method that the line trace check is identified, it is characterized in that:
7) check described in step is identified, comprises following processing step:
A) utilize conventional Compare System software, keyboard and the cursor of operation computing machine are shifted and angular setting to the three-dimensional feature data and curves of evidence at the scene with the comparison sample, and described Compare System software is excel spreadsheet lattice softwares;
B) convex-concave big rise and fall separately on the some three-dimensional feature data and curves in first finding respectively a), each section that shared three-dimensional data points is many, they are respectively the position at thick lines place on described three-dimensional feature data and curves, the first similarities and differences of the overall described three-dimensional feature data and curves of observation and comparison, then the fluctuating height of the described three-dimensional feature data and curves of local observation and comparison, width, the steep slow quantity that reaches the section of big rise and fall, position, just, width, mutual spacing from the similarities and differences of position relationship;
C) as b) in can reflect the quantity, position of the fluctuating section of thick lines, just, width, mutual spacing from position relationship through relatively finding when similar or identical, the similarities and differences of the narrow setback section on more described fluctuating section again, as as described in finding, narrow setback section is also identical, and the instrument that can obtain producing described two line traces is the comparative result of same object;
As b) described in can reflect the quantity, position of the fluctuating section of thick lines, just, width, mutual spacing when having essential difference with position relationship, the instrument that can obtain producing described two line traces is not the comparative result of same object;
D) utilize photo to reflect and demonstrate,prove and obtain checking expert's conclusion: utilize conventional picture processing software, described picture processing software is Adobe Photoshop picture processing software, vestige lines on the photo of evidence at the scene and comparison sample are docked, if the vestige lines of joint coincide, link up, the instrument that can reflect described two line traces of card generation is the check conclusion of same object; If the vestige lines of joint misfit, discontinuous, can reflect the instrument that card produces described two line traces and be the check conclusion of same object, complete the check evaluation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110364168 CN102435606B (en) | 2011-11-16 | 2011-11-16 | Method for supporting inspection and identification of line trace by utilizing three-dimensional characteristic data plot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110364168 CN102435606B (en) | 2011-11-16 | 2011-11-16 | Method for supporting inspection and identification of line trace by utilizing three-dimensional characteristic data plot |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102435606A CN102435606A (en) | 2012-05-02 |
| CN102435606B true CN102435606B (en) | 2013-06-12 |
Family
ID=45983776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110364168 Expired - Fee Related CN102435606B (en) | 2011-11-16 | 2011-11-16 | Method for supporting inspection and identification of line trace by utilizing three-dimensional characteristic data plot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102435606B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105674887B (en) * | 2016-01-19 | 2019-02-05 | 昆明理工大学 | A kind of incomplete linear trace feature registration comparison method in scene |
| CN105844280B (en) * | 2016-03-22 | 2019-03-08 | 杨敏 | Lines accurate positioning and extracting method in line tool mark image |
| CN106934345B (en) * | 2017-01-25 | 2020-03-27 | 上海蔚来汽车有限公司 | Vehicle flaw library and construction method thereof, and vehicle flaw information display method and system |
| CN106908453A (en) * | 2017-03-24 | 2017-06-30 | 中国科学技术大学 | The detection method and detection means of a kind of printed substrate |
| CN107014815A (en) * | 2017-05-30 | 2017-08-04 | 辛翠 | It is quick in identification to determine the method that clamp type tool blade shears position |
| CN109115111B (en) * | 2018-09-19 | 2020-07-14 | 中国计量科学研究院 | Precision evaluation method of three-dimensional warhead trace measuring instrument |
| JPWO2022102371A1 (en) * | 2020-11-16 | 2022-05-19 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799292A (en) * | 2010-02-25 | 2010-08-11 | 马建春 | Relic identification method |
-
2011
- 2011-11-16 CN CN 201110364168 patent/CN102435606B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799292A (en) * | 2010-02-25 | 2010-08-11 | 马建春 | Relic identification method |
Non-Patent Citations (2)
| Title |
|---|
| 动态激光测图数据处理系统;王健;《山东科技大学学报( 自然科学版)》;20051230;第24卷(第4期);第63-65页 * |
| 王健.动态激光测图数据处理系统.《山东科技大学学报( 自然科学版)》.2005,第24卷(第4期),全文. |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102435606A (en) | 2012-05-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102435606B (en) | Method for supporting inspection and identification of line trace by utilizing three-dimensional characteristic data plot | |
| CN106127771B (en) | Tunnel orthography system and method is obtained based on laser radar LIDAR point cloud datas | |
| Dai et al. | Comparison of image-based and time-of-flight-based technologies for three-dimensional reconstruction of infrastructure | |
| CN102506738B (en) | Real-time monitoring and early-warning method for deformation of geotechnical engineering based on digital photogrammetry | |
| CN204730814U (en) | A kind of parts passer based on line laser three-dimensional measurement | |
| CN103776390A (en) | Three-dimensional natural texture data scanning machine and multi-view-field data splicing method | |
| CN106441087B (en) | A kind of more size Multi-parameter Measurement Methods of workpiece based on image procossing | |
| CN102564335A (en) | Method for measuring deformation of large-scale tunnel | |
| CN109146711A (en) | A method of comprehensive utilization BIM technology and 3D laser scanning system Optimizing construction | |
| CN103090883A (en) | Device and method for calibrating dynamic tracking precision of photoelectric tracking system | |
| CN102829736B (en) | Three-dimensional fingerprint sensing system | |
| CN102003938A (en) | Thermal state on-site detection method for large high-temperature forging | |
| CN105905132A (en) | Intelligent rail state patrolling device and method | |
| CN102564347A (en) | Object three-dimensional outline measuring device and method based on Dammann grating | |
| CN205352391U (en) | Entity measurement system based on ground three -dimensional laser scanning | |
| KR102204016B1 (en) | System and method for 3d based facilities safety management | |
| CN103322911A (en) | Characteristic building elevation surveying and mapping method based on images | |
| CN103065356A (en) | Offshore oil facility three-dimensional model building method | |
| CN106839989B (en) | A kind of scan method and scanning aid mark plate of spatial digitizer | |
| CN203038129U (en) | Photoelectric tracking system dynamic tracking precision calibrating device | |
| CN110186383B (en) | Monocular camera deflection measuring method based on target point elevation angle change | |
| CN109990703A (en) | A kind of size detecting method and system of prefabricated components | |
| CN112540089A (en) | Application method of digital imaging system in concrete bridge crack detection and analysis | |
| CN109781029A (en) | A kind of product measurement three-dimensional data joining method | |
| CN103148806A (en) | Ship steel plate dynamic three-dimensional measuring system based on projection and multi-view vision |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20151116 |
|
| EXPY | Termination of patent right or utility model |