CN107464282A - Camera modeling method and system on the basis of a kind of paper by A4 - Google Patents
Camera modeling method and system on the basis of a kind of paper by A4 Download PDFInfo
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- CN107464282A CN107464282A CN201710663273.8A CN201710663273A CN107464282A CN 107464282 A CN107464282 A CN 107464282A CN 201710663273 A CN201710663273 A CN 201710663273A CN 107464282 A CN107464282 A CN 107464282A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/2624—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects for obtaining an image which is composed of whole input images, e.g. splitscreen
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- Multimedia (AREA)
- Signal Processing (AREA)
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- Software Systems (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
Camera modeling method and system on the basis of a kind of paper by A4 of the present invention, take an A4 paper, the side doubling longer along the A4 paper, on the axis of doubling, close to the both ends of the A4 paper, respectively draw a solid roundlet.Four in the A4 paper are held angle, optional end angle, draw a solid roundlet.Measured object is placed among the A4 paper, camera carries out 360 degree of shootings to measured object, obtains some two dimensional images.Feature point extraction is carried out to acquired two dimensional image, generate 3D models, identify the axis of A4 paper and solid dot described in image, according to the coordinate system template pre-set, and the position relationship and proportionate relationship of measured object and A4 paper, the coordinate of measured object is corrected, restores new 3D models, and size is marked out in the new 3D models.Because A4 paper is standard size, with regard to that can accomplish to carry out accurately 3D modeling and measurement to object, efficiency will be greatly improved without professional equipment.
Description
Technical field
The present invention relates to the method for image modeling, the camera modeling method on the basis of relating in particular to a kind of paper by A4
And system.
Background technology
Image modeling technology, refer to image by picture pick-up device such as digital camera, mobile phone camera and tablet personal computer
First-class numeral obtains vision facilities and carries out IMAQ to object, is computed machine equipment and carries out image procossing and three-dimensional computations,
So as to produce the threedimensional model of subject.
In the prior art, the method being modeled based on mobile phone camera scanned item is, to object being measured shooting one
After the photo of fixed number amount, by the 3D models of image algorithm synthesis one to one, because single camera can not aware space distance
Limitation, target object can not be accurately measured, it is necessary to an object of reference.Secondly in the case of with reference to thing,
The 3D models of foundation, due to the shooting that handheld device is carried out, the shooting angle of every photo certainly exists error, is built such that
3D models can not be accurately positioned spatial coordinate axle in solid space, that is, can tilt or distort etc., cause to utilize hand
The model that holding equipment is established by shooting picture, can not accomplish to space length accurately intelligent measure.Such as in the prior art
Modeling on cup is as follows：By mobile phone to 360 degree of circle photos of shooting one of a cup on desktop, this can be constructed
The 3D models of cup, but the rim of a cup diameter of this cup can not be accurately measured, height etc. data, this limitation, cause
The technology for being modeled and measuring by holding capture apparatus at present can not obtain practical application.So current 3D modeling measurement is all
Need professional equipment just to accomplish, be all cumbersome time-consuming, the efficiency by setting fixed angle and apart from can just accomplish to accurately measure
Lowly.
The content of the invention
Therefore, when the technical problems to be solved by the invention are to be modeled using common camera in the prior art,
The bulk of object being measured can not be determined accurately.
In order to solve the above technical problems, the used technical scheme of the present invention：
A kind of camera modeling method on the basis of paper by A4, is comprised the steps of：
An A4 paper is taken, the side doubling longer along the A4 paper；
On the axis of doubling, close to the both ends of the A4 paper, a solid roundlet is respectively drawn；
Four in the A4 paper are held angle, optional end angle, draw a solid roundlet；
Measured object is placed on the A4 paper；
Camera carries out 360 degree of shootings to measured object, obtains some two dimensional images；
Feature point extraction is carried out to acquired two dimensional image, generates 3D models；
The axis of A4 paper and solid dot described in image are identified, it is right according to the coordinate system template of the A4 paper pre-set
The 3D models are corrected, and according to the position relationship and proportionate relationship of measured object and A4 paper, correct the coordinate of measured object,
New 3D models are restored, and size is marked out in the new 3D models.
Wherein, feature point extraction is carried out to captured image using feature extraction.
Wherein, the diameter range of the solid roundlet is 2-3mm.
Wherein, the camera is mobile phone camera.
Wherein, the camera, around measured object, 360 degree of bats is carried out to measured object with the angular range of 30-60 degree
Take the photograph.
A kind of camera modeling on the basis of the paper by A4, including：
Processor, it is adapted for carrying out each instruction；And
Storage device, suitable for storing a plurality of instruction, the instruction is suitable to be loaded and performed by processor；
Camera, receives the shooting instruction that the processor is sent, and 360 degree of bats are carried out to the measured object being placed on A4 paper
Take the photograph, obtain some two dimensional images, the A4 branch is along longer side doubling, on the axis of doubling, close to the two of the A4 paper
End, respectively draws a solid roundlet, and four in the A4 paper hold angle, optional end angle, draw a solid roundlet.
Processor carries out feature point extraction to acquired two dimensional image, generates 3D models.
Wherein, feature point extraction is carried out to captured image using feature extraction.
Wherein, the diameter range of the solid roundlet is 2-3mm.
Wherein, the camera is mobile phone camera.
Wherein, the camera, around measured object, 360 degree of bats is carried out to measured object with the angular range of 30-60 degree
Take the photograph.
The above-mentioned technical proposal of the present invention has advantages below compared with prior art：
1. the present invention a kind of paper by A4 on the basis of camera modeling method and system, take an A4 paper, along the A4 paper compared with
Long side doubling, on the axis of doubling, close to the both ends of the A4 paper, respectively draw a solid roundlet.In the A4 paper
Four end angle, it is optional one end angle, draw a solid roundlet.Measured object is placed among the A4 paper, camera
360 degree of shootings are carried out to measured object, obtain some two dimensional images.Feature point extraction is carried out to acquired two dimensional image, it is raw
Into 3D models, the axis of A4 paper and solid dot described in image are identified, according to the coordinate system mould of the A4 paper pre-set
Plate, the 3D models are corrected, according to measured object and the position relationship and proportionate relationship of A4 paper, correct measured object
Coordinate, new 3D models are restored, and size is marked out in the new 3D models.Because A4 paper is standard size, pass through
This method, will be without professional equipment, as long as using simply hand-held capture apparatus, with regard to that can accomplish to carry out accurately 3D to object
Modeling and measurement, greatly improve efficiency.
2. camera modeling method and system on the basis of a kind of paper by A4 of the present invention, by setting, 2-3mm's is solid
Dot, as reference point, it can be easy to as feature point extraction come out, while the area mistake in two dimensional image will not be caused
Greatly.
Brief description of the drawings
In order that present disclosure is more likely to be clearly understood, specific embodiment and combination below according to the present invention
Accompanying drawing, the present invention is further detailed explanation, wherein,
Fig. 1 be a kind of paper by A4 of the present invention on the basis of camera modeling method schematic flow sheet；
Fig. 2 be a kind of paper by A4 of the present invention on the basis of camera modeling structured flowchart；
Fig. 3 is the camera modeling method and a shooting state of system on the basis of a kind of a kind of paper by A4 of the present invention of the present invention
Top view；
Fig. 4 is the camera modeling method and the correction measured object of system on the basis of a kind of a kind of paper by A4 of the present invention of the present invention
Coordinate schematic diagram.
Reference is expressed as in figure：1- processors；2- storage devices；3- cameras；4- cups；5-A4 paper；6- is solid
Roundlet；7- axis.
Embodiment
Embodiment 1
A kind of camera modeling method on the basis of paper by A4, as shown in Fig. 1,3,4, is comprised the steps of：
An A4 paper is taken, A4 paper is plain pape.The side doubling longer along the A4 paper.
On the axis of doubling, close to the both ends of the A4 paper, a solid roundlet is respectively drawn.
Four in the A4 paper are held angle, optional end angle, draw a solid roundlet.
Measured object is placed on the A4 paper, it is preferable that be placed on A4 paper center.
Camera carries out 360 degree of shootings to measured object, obtains some two dimensional images.
Feature point extraction is carried out to acquired two dimensional image, generates 3D models.
The axis of A4 paper and solid dot described in image are identified, according to the coordinate system mould of the A4 paper pre-set
Plate, the 3D models are corrected, according to measured object and the position relationship and proportionate relationship of A4 paper, correct measured object
Coordinate, new 3D models are restored, and size is marked out in the new 3D models.Because A4 paper is standard size, pass through
This method, will be without professional equipment, as long as using simply hand-held capture apparatus, with regard to that can accomplish to carry out accurately 3D to object
Modeling and measurement, greatly improve efficiency.
Wherein, feature point extraction is carried out to captured image using feature extraction.Feature extraction can be existing
Commercialized algorithm in technology, disclosed in such as CN201710046969.6.
Wherein, the diameter range of the solid roundlet is 2-3mm.As reference point, can be easy to as characteristic point carry
Take out, while the area in two dimensional image will not be caused excessive.
Wherein, the camera is mobile phone camera.
Wherein, the camera, around measured object, 360 degree of bats is carried out to measured object with the angular range of 30-60 degree
Take the photograph.
It is the centre that a cup 4 as measured object is placed on to the A4 paper 5 shown in Fig. 3.On a left side for A4 paper 5
Upper end pin draws a solid roundlet 6, on the axis 7 in doubling, close to the both ends of the A4 paper 5, respectively draws a reality
Heart roundlet 6.The border of A4 paper 5 can be oriented by solid roundlet 6.According to the length of axis 7, solid roundlet position,
The size of A4 paper can calculate the bottom size of cup 4.
It is the front view of the shooting cup 4 got shown in Fig. 4, carries out the schematic diagram of coordinate correction.Detailed process is such as
Under, the bottom size of cup 4 has been known in figure 3, according to the ratio of the height and bottom of the length of axis 7 and cup 4
The height dimension of cup 4 can be calculated, by bottom size and height dimension, coordinate adjustment can be carried out.
Embodiment 2
A kind of camera modeling on the basis of the paper by A4, as shown in Figure 2,3, 4, including：
Processor 1, it is adapted for carrying out each instruction.And
Storage device 2, suitable for storing a plurality of instruction, the instruction is suitable to be loaded and performed by processor 1.
Camera 3, receives the shooting instruction that the processor 1 is sent, and 360 are carried out to the measured object being placed on A4 paper
Degree shooting, some two dimensional images are obtained, the A4 branch is along longer side doubling, on the axis of doubling, close to the A4 paper
Both ends, respectively draw a solid roundlet, angle held at four of the A4 paper, optional end angle, draws a solid roundlet.
Processor 1 carries out feature point extraction to acquired two dimensional image, generates 3D models.Because A4 paper is gauge
It is very little, will be without professional equipment, as long as using simply hand-held capture apparatus, with regard to that can accomplish to carry out object by this method
Accurately 3D modeling and measurement, greatly improve efficiency.
Wherein, feature point extraction is carried out to captured image using feature extraction.Feature extraction can be existing
Commercialized algorithm in technology, disclosed in such as CN201710046969.6.
Wherein, the diameter range of the solid roundlet is 2-3mm.As reference point, can be easy to as characteristic point carry
Take out, while the area in two dimensional image will not be caused excessive.
Wherein, the camera 3 is mobile phone camera.
Wherein, the camera 3, around measured object, 360 degree is carried out to measured object with the angular range of 30-60 degree
Shooting.
It is the centre that a cup 4 as measured object is placed on to the A4 paper 5 shown in Fig. 3.On a left side for A4 paper 5
Upper end pin draws a solid roundlet 6, on the axis 7 in doubling, close to the both ends of the A4 paper 5, respectively draws a reality
Heart roundlet 6.The border of A4 paper 5 can be oriented by solid roundlet 6.According to the length of axis 7, solid roundlet position,
The size of A4 paper can calculate the bottom size of cup 4.
It is the front view of the shooting cup 4 got shown in Fig. 4, carries out the schematic diagram of coordinate correction.Detailed process is such as
Under, the bottom size of cup 4 has been known in figure 3, according to the ratio of the height and bottom of the length of axis 7 and cup 4
The height dimension of cup 4 can be calculated, by bottom size and height dimension, coordinate adjustment can be carried out.Obviously, above-mentioned implementation
Example is only intended to clearly illustrate example, and is not the restriction to embodiment.For the ordinary skill of art
For personnel, it can also make other changes in different forms on the basis of the above description.There is no need and unable to
All embodiments are exhaustive.And the obvious changes or variations thus extended out is still in the invention
Protection domain among.
Claims (10)
1. the camera modeling method on the basis of a kind of paper by A4, it is characterised in that comprise the steps of：
An A4 paper is taken, the side doubling longer along the A4 paper；
On the axis of doubling, close to the both ends of the A4 paper, a solid roundlet is respectively drawn；
Four in the A4 paper are held angle, optional end angle, draw a solid roundlet；
Measured object is placed on the A4 paper；
Camera carries out 360 degree of shootings to measured object, obtains some two dimensional images；
Feature point extraction is carried out to acquired two dimensional image, generates 3D models；
The axis of A4 paper and solid dot described in image are identified, it is right according to the coordinate system template of the A4 paper pre-set
The 3D models are corrected, and according to the position relationship and proportionate relationship of measured object and A4 paper, correct the coordinate of measured object,
New 3D models are restored, and size is marked out in the new 3D models.
2. the camera modeling method on the basis of a kind of paper by A4 according to claim 1, it is characterised in that utilize feature
Extraction method carries out feature point extraction to captured image.
3. the camera modeling method on the basis of a kind of paper by A4 according to claim 1 or 2, it is characterised in that described
The diameter range of solid roundlet is 2-3mm.
4. the camera modeling method on the basis of a kind of paper by A4 according to Claims 2 or 3, it is characterised in that described
Camera is mobile phone camera.
5. according to the camera modeling method on the basis of a kind of any described paper by A4 of claim 2-4, it is characterised in that
The camera, around measured object, 360 degree of shootings is carried out to measured object with the angular range of 30-60 degree.
A kind of 6. camera modeling on the basis of paper by A4, it is characterised in that including：
Processor, it is adapted for carrying out each instruction；And
Storage device, suitable for storing a plurality of instruction, the instruction is suitable to be loaded and performed by processor；
Camera, receives the shooting instruction that the processor is sent, and 360 degree of bats are carried out to the measured object being placed on A4 paper
Take the photograph, obtain some two dimensional images, the A4 branch is along longer side doubling, on the axis of doubling, close to the two of the A4 paper
End, respectively draws a solid roundlet, and four in the A4 paper hold angle, optional end angle, draw a solid roundlet；
Processor carries out feature point extraction to acquired two dimensional image, generates 3D models.
7. the camera modeling on the basis of a kind of paper by A4 according to claim 6, it is characterised in that utilize feature
Extraction method carries out feature point extraction to captured image.
8. the camera modeling on the basis of a kind of paper by A4 according to claim 7, it is characterised in that described solid
The diameter range of roundlet is 2-3mm.
9. the camera modeling on the basis of a kind of paper by A4 according to claim 8, it is characterised in that the shooting
Head is mobile phone camera.
10. the camera modeling on the basis of a kind of paper by A4 according to claim 9, it is characterised in that described to take the photograph
As head is with the angular range of 30-60 degree, circular measured object, to 360 degree of shootings of measured object progress.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107993502A (en) * | 2018-01-25 | 2018-05-04 | 陈尚松 | The demonstration device of size marking |
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Application publication date: 20171212 |