CN214749828U - Integrated image acquisition device - Google Patents
Integrated image acquisition device Download PDFInfo
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- CN214749828U CN214749828U CN202120492218.9U CN202120492218U CN214749828U CN 214749828 U CN214749828 U CN 214749828U CN 202120492218 U CN202120492218 U CN 202120492218U CN 214749828 U CN214749828 U CN 214749828U
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Abstract
The utility model discloses an integral type image acquisition device, it includes the support body and locates drive case, table surface on this support body, table surface is last to be provided with the objective table that can longitudinal movement fix a position respectively and wind self axis graduation rotation for place test sample, objective table top transverse orientation has horizontal stepping mechanism, horizontal stepping mechanism goes up transverse sliding location has vertical stepping mechanism, and this vertical stepping mechanism goes up to be fixed a position has the base, the base has standard collection equipment and light source through rotation axis stepping mechanism location, and this standard collection equipment is right test sample on the objective table shoots. The utility model discloses the image that the collection obtained reflects the true condition of test sample outward appearance more accurately, and the image uniformity is higher, for the research and development personnel provides standard, high-quality sample outward appearance image, and information collection is comprehensive, is favorable to environmental test sample's accurate data analysis and collection.
Description
Technical Field
The utility model relates to an integral type image acquisition device, concretely relates to integral type image acquisition device of environmental test sample belongs to environmental test technical field.
Background
When the environment test is carried out, the test sample can generate phenomena of corrosion, aging, cracking and the like, and the structure and the performance of the test sample can also change along with the time. Among them, the change in appearance of the sample is the easiest to observe, and is also an important index reflecting the environmental suitability thereof.
When researchers record appearance changes of samples, most commonly cameras are used for photographing the samples. However, the quality of a shot picture is closely related to a scene, a manipulation technique of a photographer, and the like. Differences in the quality of photographs between cloudy and sunny days, morning and noon, indoor and outdoor, etc., can cause great differences. This can result in the recorded picture not being able to reflect the reality of the appearance of the sample completely accurately. Secondly, the samples at different test stages may be photographed by different persons using cameras with different parameters, and the light sensitivity, resolution and various specific photographic parameters of the cameras are manually adjusted. The photos collected at different stages are compared, so that difficulty is increased for scientific research comparison work. Thirdly, when a camera is used to photograph a sample, due to factors such as angle and field of view, all features of the sample may not be photographed, and the loss of the features will cause the obtained result to be different from the fact. Finally, the bright and clean surface of the shot metal material is easy to reflect light, and shadow can be left on the image by adjusting the shooting angle; when the depth of field is large, the picture will have problems such as partial blurring.
By using the existing image acquisition method, the consistency of images acquired by different personnel and different stages is poor, and the condition of characteristic loss exists, so that a standard and high-quality sample appearance image cannot be obtained.
Disclosure of Invention
To the weak point among the above-mentioned prior art, the utility model provides an integral type image acquisition device provides standard, high-quality sample appearance image for research and development personnel, and information acquisition is comprehensive, is favorable to the accurate data analysis and the collection of environmental test sample.
In order to realize the purpose, the utility model discloses a technical scheme:
integral type image acquisition device, it includes the support body and locates drive case, table surface on this support body, table surface is last to be provided with the objective table that can longitudinal movement fix a position respectively and around self axis graduation rotation for place the test sample, objective table top transverse positioning has horizontal stepping mechanism, horizontal stepping mechanism goes up the horizontal sliding location and has vertical stepping mechanism, and this vertical stepping mechanism goes up the location has the base, the base has standard collection equipment and light source through rotation axis stepping mechanism location, and this standard collection equipment is right test sample on the objective table shoots.
Furthermore, the lateral periphery and the upper part of the working table surface are encircled into a closed working space through a dark brown acrylic plate, and the objective table, the standard acquisition equipment and the light source are all positioned in the closed working space.
Furthermore, the bottom of the frame body is provided with an integrated caster.
Furthermore, a longitudinal stepping mechanism is positioned on the working table top, an index plate is longitudinally positioned on the longitudinal stepping mechanism in a sliding manner, and the objective table is arranged on the index plate.
Furthermore, an automatic lifting door or/and an access door is/are arranged on the closed working space.
The utility model has the advantages that: through carrying out standardized shooting and standardized processing to the test sample, optimize image quality, eliminate the various flaw influences of third party's factor to the picture of shooing simultaneously, the true condition of test sample outward appearance is reflected more accurately to the image that acquires, and the image uniformity is higher, provides standard, high-quality sample outward appearance image for research personnel, and information acquisition is comprehensive, is favorable to the accurate data analysis and the collection of environmental test sample.
Drawings
Fig. 1 is a three-dimensional structure diagram of the integrated image capturing device of the present invention.
Fig. 2 is a perspective view of the table top of fig. 1.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments and accompanying drawings.
The scheme adopts the following integrated image acquisition device to realize shooting, as shown in fig. 1 and 2:
this integral type image acquisition device includes support body 1 and locates drive box 3 on the support body 1, table surface 4 is last to be provided with can be respectively longitudinal movement location and around self axis graduation rotatory objective table 12, be used for placeing the experimental sample, there is horizontal stepping mechanism 15 objective table 12 top transverse positioning, there is vertical stepping mechanism 16 transverse sliding location on the horizontal stepping mechanism 15, there is base 17 vertical stepping mechanism 16 goes up to be fixed a position, base 17 has standard collection equipment 19 and light source through rotation axis stepping mechanism 18 location, standard collection equipment 19 shoots the experimental sample on objective table 12.
Support body 1 adopts cabinet type structure, and the bottom sets up integrative truckle 2, and the whole device of being convenient for shifts, promotes the convenience, and the top sets up the three-colour warning light. The side direction of table surface 4 is enclosed into airtight workspace 5 all around and the top through dark brown inferior gram force board, and objective table 12, standard collection equipment 19 and light source all are in airtight workspace 5, and in order to facilitate the operation, be provided with automatic rising door or access door on the airtight workspace 5.
A longitudinal stepping mechanism 11 is positioned on the working table surface 4, an index plate 13 is positioned on the longitudinal stepping mechanism 11 in a longitudinal sliding mode, and the objective table 12 is arranged on the index plate 13.
The longitudinal stepping mechanism 11, the transverse stepping mechanism 15, the vertical stepping mechanism 16 and the rotating shaft stepping mechanism 18 in the device can be realized by the existing mechanisms such as a slide rail slide block, a lead screw and the like, and redundant description is not repeated here.
The standardized image acquisition method specifically comprises the following steps:
s1, placing the test sample in a standard illumination environment, and taking a picture of the test sample by using standard collection equipment after the spectrum in the standard illumination environment is stable;
s2, adjusting the view field and focusing by standard acquisition equipment;
s3, shooting by standard acquisition equipment right above the test sample, and storing an image picture as a reference image;
s4, rotating the angle of view shot by the standard collection equipment by an angle alpha, horizontally rotating the test sample at a constant speed and graduation at a set position according to a set rotating speed b, rotating the test sample for at least one circle, shooting the test sample by the standard collection equipment at a frequency c, and respectively storing image pictures shot by the standard collection equipment;
s5, setting a reference point/line on the test sample, taking the position of the reference point/line in each image photo as a positioning benchmark, and respectively identifying the appearance characteristics of each characteristic on each image photo on the test sample according to the positioning benchmark;
s6, comparing the appearance feature of each feature of the test sample in the image picture of the step S4 with the appearance feature in the reference image, dividing the redundant feature of the appearance feature in the image picture of the step S4, combining the divided features into the corresponding appearance feature in the reference image to form a new reference image,
and comparing the appearance features of the test sample in the other image photos in the step S4 with the appearance features of the test sample in the new reference image, similarly dividing the redundant features of the appearance features in the other image photos in the step S4, synthesizing the divided features into the corresponding appearance features in the new reference image, repeating the steps until the redundant features of the appearance features of all the image photos in the step S4 of each feature of the test sample are synthesized in the reference image, and forming the reference image as a standardized acquired image of the test sample.
Specifically, the scheme is realized by adopting two systems, wherein one system is a standardized image acquisition device, and the other system is a standardized image processing system, and has the functions of acquiring, storing, transmitting, preprocessing and the like of image data.
The image processing system is realized by software and comprises a PLC control program, a camera control program and an image processing program; the standardized image acquisition device comprises the steps of establishing a standard image acquisition environment, standardizing acquisition equipment, standardizing acquisition operation and the like.
Firstly, a standard illumination environment is set up, a D65 standard light source (Artificial Daylight 6500K) is selected to simulate bright blue days and average natural sunlight under sunlight to replace natural light. The part above the device table surface is covered by the dark brown acrylic plate, and the influence of external light on the photographing environment is isolated. All indexes of the selected D65 standard light source need to meet the requirements of the CIE International Commission on illumination and the CY3-91 standard on color evaluation and color matching colorimetric illumination, and the light source can be used in all-weather environment. The constructed illumination environment meets the following requirements:
color temperature is 6500K +/-200K;
secondly, the spectrum is stable, and the color rendering index is more than 96 percent;
illumination uniformity is more than or equal to 80 percent;
fourthly, the light source displays the service time and is replaced in time after the service life is reached.
Secondly, the acquisition equipment is standardized, 2000 ten thousand pixels of industrial area-array cameras are uniformly used in the scheme, the standard field of view of 400mm multiplied by 300mm is photographed, and the image resolution is superior to 0.1 mm.
And thirdly, the collection operation is standardized, a standardized operation flow is formulated, semi-automation is realized, artificial uncertain factors are avoided, the actions of placing and taking away the sample are only completed manually, and other operations are completed by a defined program.
Fourth, image processing is standardized. And automatically selecting and synthesizing a plurality of image photos shot by the camera. And the shadow and the reflected light which may exist are automatically eliminated through a software processing program. Finally, a standard image is output, and the truth and the completeness of the characteristics of the sample can be ensured.
In image processing, various shot image photos are transmitted to a workstation for intelligent processing, including reflection elimination, shadow elimination, selection and synthesis, and finally a standard image is output and stored to a designated position, and an unprocessed original image is stored to another position, so that an operator can conveniently check the images at any time.
Taking a test sample as an example, after the test sample is subjected to an environmental test, characteristics such as cracks, pits, corrosion products and the like appear, and when a tester photographs the test sample, due to the difference of photographing angles, an image photo may present different damage characteristics, so that damage rating is remarkably different. Experiments prove that the difference between shooting right above and shooting obliquely above the same group of samples is obvious, and the difference between corrosion ratings is 2-3 levels. This scheme is through device mechanism from a plurality of angles of setting for shooing to carry out image synthesis with many photos, thereby make and gather image information comprehensive, can accurately reflect the actual damage condition, get rid of the characteristic that the error of shooing arouses and lose the condition.
When the standard acquisition equipment 19 is used, an industrial area-array camera is adopted, the center of a camera lens is positioned right above the center of the objective table 12, and the lowest position of the camera positioned on the vertical moving track is an initial position. At this time, the camera and the stage are located at the X-axis and Y-axis origin positions, and the stage plane is the Z-axis origin. The horizontal direction is the positive direction of the X axis to the right, the positive direction of the Y axis is the positive direction of the Y axis, and the vertical direction is the positive direction of the Z axis.
If the test sample is a typical plate sample:
plate sample size: a photograph was taken of 1 set of 4 flat plate samples of 50mm X100 mm X5 mm, and the area of the sample area was 200mm X100 mm, the center of the area being the center of the stage.
Photographing parameters (unit/mm):
1. the camera moves to X, Y, Z ═ 0, 0, 150, and takes a picture right above;
2. the visual rotating shaft of the camera rotates by 5 degrees, the objective table moves to (0, -2, 150), the rotating speed of the dividing plate is (3-5) seconds/rotation, and the photographing frequency is (0.5-1) seconds/sheet.
3. After the stage was rotated for 1 week, the initial position was restored.
If the test sample is a typical isoform:
typical isoform size: phi 50mm multiplied by 150mm is placed in the center of the object stage.
Photographing parameters (unit/mm):
1. the camera moves to X, Y, Z ═ 0, 0, 300, and takes a picture right above;
2. the visual rotating shaft of the camera rotates by 5 degrees, the objective table moves to (0, -4, 300), the rotating speed of the dividing plate is (4-6) seconds/rotation, and the photographing frequency is (0.5-1) seconds/piece.
3. And after the objective table rotates for 1-2 weeks, the initial position is recovered.
The test sample is shot from any angle through controlling the camera, multi-view-angle image photos are acquired, and aiming at effective acquisition of fine morphology features, such as unobvious scratches, micro corrosion points and the like, the acquired information is comprehensive, so that the analysis of the environmental test sample is facilitated. Carrying out intelligent processing on various shot image photos, and in a key synthesis stage:
firstly, selecting a positioning standard, such as any corner or any side of the flat plate sample as a standard, so as to identify and position the appearance characteristics of each characteristic on the flat plate sample in each image photo, and tests show that the appearance characteristics of each characteristic of the test sample in each image photo are different.
Secondly, after the appearance characteristics of each characteristic on the test sample in each image photo are identified and determined, the appearance characteristics of each characteristic of the test sample in the image photo are compared with the appearance characteristics in the reference image, redundant characteristics of the appearance characteristics in the image photo are divided, the divided characteristics are synthesized into the corresponding appearance characteristics in the reference image to form a new reference image,
and comparing the appearance characteristics of the test sample in other image photos with the appearance characteristics in a new reference image, similarly segmenting redundant characteristics of the appearance characteristics in other image photos, synthesizing the segmented characteristics into corresponding appearance characteristics in the new reference image, repeating the steps until the redundant characteristics of the appearance characteristics of each characteristic of the test sample in all the image photos are synthesized in the reference image, forming the reference image as a standard collected image of the test sample, and outputting a two-dimensional synthesized image which can reflect all the damage characteristics collected by photographing at a plurality of angles.
The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the description should not be construed as a limitation to the present invention.
Claims (5)
1. Integral type image acquisition device, its characterized in that: including support body (1) and locate drive case (3), table surface (4) on this support body (1), be provided with on table surface (4) and can longitudinally move the location respectively and around self axis graduation rotatory objective table (12) for place test sample, objective table (12) top transverse positioning has horizontal stepping mechanism (15), transverse sliding location has vertical stepping mechanism (16) on horizontal stepping mechanism (15), and it has base (17) to fix a position on this vertical stepping mechanism (16), base (17) are fixed a position through rotation axis stepping mechanism (18) has standard collection equipment (19) and light source, and this standard collection equipment (19) are right test sample on objective table (12) shoots.
2. The integrated image capturing device of claim 1, wherein: the side direction of the working table top (4) is surrounded into a closed working space (5) by the dark brown acrylic plates at the periphery and the upper part, and the objective table (12), the standard acquisition equipment (19) and the light source are all positioned in the closed working space (5).
3. The integrated image capturing device of claim 1, wherein: the bottom of the frame body (1) is provided with an integrated trundle (2).
4. The integrated image capturing device of claim 1, wherein: a longitudinal stepping mechanism (11) is positioned on the working table top (4), an index plate (13) is longitudinally positioned on the longitudinal stepping mechanism (11) in a sliding manner, and the objective table (12) is arranged on the index plate (13).
5. The integrated image capturing device of claim 2, wherein: and an automatic lifting door or/and an access door is/are arranged on the closed working space (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120492218.9U CN214749828U (en) | 2021-03-04 | 2021-03-04 | Integrated image acquisition device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120492218.9U CN214749828U (en) | 2021-03-04 | 2021-03-04 | Integrated image acquisition device |
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| CN214749828U true CN214749828U (en) | 2021-11-16 |
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| CN202120492218.9U Expired - Fee Related CN214749828U (en) | 2021-03-04 | 2021-03-04 | Integrated image acquisition device |
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- 2021-03-04 CN CN202120492218.9U patent/CN214749828U/en not_active Expired - Fee Related
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Granted publication date: 20211116 |