CN103673889A - Image processing device and image processing method - Google Patents
Image processing device and image processing method Download PDFInfo
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- CN103673889A CN103673889A CN201310389086.7A CN201310389086A CN103673889A CN 103673889 A CN103673889 A CN 103673889A CN 201310389086 A CN201310389086 A CN 201310389086A CN 103673889 A CN103673889 A CN 103673889A
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Abstract
The invention provides an image processing device and an image processing method. The image processing device utilizes two or more shooting images including a calculation object image. Filtering calculation results are stale even when filtering size is reduced. The image processing device (6) performs filtering treatment of the shooting images and is provided with a shooting part (25) shooting a to-be-measured object at different shooting distance and taking a plurality of shooting images; and a calculation part (26) utilizing two or more shooting images among the plurality of the shooting images and including the calculation image and other shooting images and performing filtering treatment.
Description
Technical field
The present invention relates to a kind of photographic images be implemented to image processing apparatus and the image processing method that filtering is processed, especially, relate to a kind of filtering when the soldered ball of arranging on installation base plate is carried out to elevation measurement and process.
Background technology
Current, as this image processing apparatus, during the known generation at pan focus image, use 7 * 7 difference filters to carry out the image processing apparatus (for example,, with reference to patent documentation 1) of filtering processing.The image processing apparatus that patent documentation 1 is recorded is arranged on the erecting device of electronic unit, by making the determination object thing being held on absorption suction nozzle approach camera, thereby obtains the different a plurality of photographic images of shooting distance.Image processing apparatus compares the pixel of all photographic images, extracts the pixel data of focus.In the case, image processing apparatus is implemented 7 * 7 differential filterings, selects filtering result in each pixels of a plurality of photographic images to represent the pixel data of mxm., thus, according to a plurality of photographic images, generates pan focus images.
Patent documentation 1: TOHKEMY 2011-082506 communique
In addition, in the differential filtering of recording at patent documentation 1, in order to obtain the difference between concerned pixel and neighbor in each photographic images, and increase filtering size, guarantee the data bulk using in filtering is calculated.Suppose determination object parts miniaturization from now on, need to make filtering size decreases together therewith.If filtering size decreases, exists following problems, that is, the data bulk that can use in filtering is calculated tails off, and filtering result of calculation is unstable, measures precision and reduces.In addition, in the situation that measure BGA(Ball Grid Array) etc. the height of soldered ball, if filtering size is larger, the pixel data at soldered ball edge causes impact more by force to measurement result, makes to measure precision unstable.
Summary of the invention
The present invention proposes in view of above-mentioned actual conditions, and its object is, a kind of image processing apparatus and image processing method are provided, even if it reduces filtering size, also can make filtering result of calculation stable.
Image processing apparatus of the present invention is implemented filtering to photographic images and is processed, and it is characterized in that having: shoot part, and it is taken determination object thing with different shooting distances, obtains a plurality of photographic images; And calculating part, it uses in described a plurality of photographic images, comprise calculating object image and other photographic images at the interior photographic images that is more than or equal to 2, implements filtering and processes.
Image processing method of the present invention is implemented filtering to photographic images and is processed, and it is characterized in that having following step: with different shooting distances, determination object thing is taken and obtained the step of a plurality of photographic images; And use in described a plurality of photographic images, comprise calculating object image and other photographic images at the interior photographic images that is more than or equal to 2, implement the step that filtering is processed.
According to said structure, by use, comprise calculating object image at the interior photographic images of 2 that is more than or equal to, thereby can increase the data bulk calculating for filtering.Therefore, even if filtering size decreases also can be guaranteed sufficient data bulk, make filtering result of calculation stable, can't reduce mensuration precision.In addition, when measuring the ball height of BGA etc., even reduce filtering size, the filtering of soldered ball edge exclusion is processed, also can be guaranteed sufficient data bulk.
In addition, in above-mentioned image processing apparatus of the present invention, described calculating part is used the filtering result of calculation of 1 row pixel of the filtering result of calculation of the concerned pixel of described calculating object image and the neighboring pixel of described concerned pixel and 1 row pixel centered by the described concerned pixel of described calculating object image and described other photographic images corresponding with the described 1 row pixel of this calculating object image, carries out filtering processing.According to this structure, not only in calculating object image, and to cross over the mode of the different a plurality of photographic images of shooting distance, filtering is set, can guarantee sufficient data bulk.
In addition, in above-mentioned image processing apparatus of the present invention, described calculating part use the filtering result of calculation of the concerned pixel of described calculating object image and the neighboring pixel of described concerned pixel and in described other photographic images the filtering result of calculation of the pixel corresponding with the concerned pixel of described calculating object image and neighboring pixel, carry out filtering processing.According to this structure, not only utilize the pixel in calculating object image, but also utilize the pixel of other different photographic images of shooting distance, can guarantee sufficient data bulk.
In addition, in above-mentioned image processing apparatus of the present invention, described other photographic images are to compare the previous image of first taking and a rear image of comparing rear shooting with described calculating object image with described calculating object image.According to this structure, the photographic images before and after using, can be so that the data bulk calculating for filtering increases.
In addition, in above-mentioned image processing apparatus of the present invention, when described calculating part further appends and implements filtering and process after described filtering is processed, use and comprise described calculating object image and described other photographic images in the interior previous filtering result of calculation that is more than or equal to the photographic images of 2.According to this structure, in processing, the filtering of appending also can guarantee sufficient data bulk, can make the filtering result of calculation of appending stablize.
In addition, in above-mentioned image processing apparatus of the present invention, described calculating part is weighted and implements filtering and process for described calculating object image and described other photographic images.According to this structure, by corresponding with shooting distance, adjust weighting, thereby can consider the difference of the shooting distance of a plurality of photographic images, obtain more high-precision filtering result of calculation.
In addition, above-mentioned image processing apparatus of the present invention has image production part, and its filtering result of calculation based on to described a plurality of photographic images generates pan focus image.According to this structure, even in the situation that reducing filtering size, also can generate high-precision pan focus image.
The effect of invention
According to the present invention, because use comprises calculating object image at the interior photographic images of 2 that is more than or equal to, so even if reduce filtering size, also can make filtering result of calculation stable.
Accompanying drawing explanation
Fig. 1 is the oblique view of the related erecting device of present embodiment.
Fig. 2 is the schematic diagram of the related image processing apparatus of present embodiment.
Fig. 3 is the key diagram of the related filtering size of comparative example.
Fig. 4 means the figure of an example of the filter curve that comparative example is related.
Fig. 5 is the key diagram that the related filtering of present embodiment is processed.
Fig. 6 is the key diagram that the related filtering of present embodiment is processed.
Fig. 7 means the figure of an example of the filter curve that present embodiment is related.
The explanation of symbol
1 erecting device
6 image processing apparatus
21 absorption suction nozzles
22 shoot parts
25 shoot parts
26 calculating parts
27 image production parts
31 electronic units
35 soldered balls
36 substrates
37 soldered ball edges
39 filtering frames
Embodiment
Below, with reference to accompanying drawing, describe embodiments of the present invention in detail.Fig. 1 is the oblique view of the related erecting device of present embodiment.In addition, below, the situation that image processing apparatus of the present invention is applied in electronic component mounting apparatus is described, but be not limited to this structure.Also image processing apparatus of the present invention can be applied in other processing unit (plant)s.
As shown in Figure 1, erecting device 1 is configured to, utilize mounting head 4 by the electronic unit 31(supplying with from feeder 3 with reference to Fig. 2) substrate 32 to pedestal 2 installs.On pedestal 2, be provided with the mounting head travel mechanism 5 that mounting head 4 is moved to X-direction and Y direction.Mounting head travel mechanism 5 is supported by four jiaos of upright column sections that arrange 11 at pedestal 2, from pedestal 2 upper surfaces, with the height of stipulating, mounting head 4 is moved along X-direction and Y direction.
Mounting head travel mechanism 5 has: Y-axis worktable 13 and sliding guidance portion 14, and it is supported in column sections 11, parallel with Y direction; And X-axis worktable 15, it is supported in Y-axis worktable 13 and sliding guidance portion 14, parallel with X-direction.On X-axis worktable 15, can support movably mounting head 4 along X-direction.In addition, on Y-axis worktable 13 and on X-axis worktable 15, be respectively arranged with for accommodating the cable bearing (registered trademark) 16,17 of the various cables such as feed cable.
Mounting head travel mechanism 5 utilizes not shown motor along X-axis worktable 15, mounting head 4 to be moved along X-direction.In addition, mounting head travel mechanism 5 utilizes not shown motor, and mounting head 4 is moved to Y direction along Y-axis worktable 13 and sliding guidance portion 14 together with X-axis worktable 15.Utilize this structure, mounting head 4 moves in the upper horizontal of substrate 32, the electronic unit 31 of supplying with can be delivered to the desired locations of substrate 32 from feeder 3.
Mounting head 4 has the absorption suction nozzle 21 of adsorbable electronic unit 31.Absorption suction nozzle 21 utilizes not shown θ motor and rotates around Z axis, and utilizes not shown Z axis motor to move up and down along Z-direction.Mounting head 4 is configured to, by making respectively to adsorb suction nozzle 21, drives respectively, thus can be from a plurality of electronic units 31 of feeder 3 absorption.In addition as long as the suction nozzle of mounting head 4 can take out electronic unit 31 from feeder 3, for example, also can be formed by clamping suction nozzle.
In addition, near absorption suction nozzle 21, be provided with shoot part 22 that teaching uses and not shown height sensor.22 pairs of shoot parts are sent to the electronic unit 31 at the delivery position place of feeder 3 and the mark of substrate 32 and are taken.Photographic images based on shoot part 22, adjusts the absorption position (holding position) of the electronic unit 31 in X-direction and Y direction and the installation site of substrate 32.Height sensor irradiates light to electronic unit 31 and substrate 32, by reflected light is subject to light, thereby carries out elevation measurement.According to the measurement result of height sensor, the installation site of the absorption position of the electronic unit 31 in Z-direction and substrate 32 is adjusted.
On pedestal 2, be provided with image processing apparatus 6(for carrying out high-precision component identification with reference to Fig. 2) shoot part 25.Shoot part 25 is taken the electronic unit 31 adsorbing at absorption suction nozzle 21 from downside.The photographic images of image processing apparatus 6 based on shoot part 25, generates the pan focus image of electronic unit 31, and electronic unit 31 is checked with respect to the bad etc. of the position deviation amount of absorption suction nozzle 21 and electronic unit 31.In addition, on pedestal 2, be provided with the substrate delivery section 7 that substrate 32 is positioned to the below of mounting head 4.Substrate delivery section 7 is by the conveying belt that extends along X-direction etc., the substrate 32 before the distolateral introducing installing component X-direction, and distolateral substrate after installing component 32 is taken out of from another.
On pedestal 2, be provided with the cover body 8 that the each several part to arranging covers on pedestal 2.In a part for cover body 8, be provided with the guidance panel 9 of accepting indication that erecting device 1 is sent.On guidance panel 9, show the setting picture relevant to the various processing of erecting device 1 and the announcement information of notifying to operating personnel.Operating personnel, by standing in the front of cover body 8, utilize finger tip directly to touch on guidance panel 9, thus the setting of the operation condition of enforcement erecting device 1 etc.On erecting device 1, be provided with the processor of the various processing of carrying out erecting device 1 and storer etc.Storer corresponding with purposes and by ROM(Read Only Memory), RAM(Random Access Memory) etc. in one or more storage mediums form.
With reference to Fig. 2, image processing apparatus is described.Fig. 2 is the schematic diagram of the related image processing apparatus of present embodiment.In addition, in the present embodiment, as determination object thing, exemplify the soldered ball of BGA and describe, but being not limited to this structure.In image processing apparatus, for example, also can be used as determination object thing and measure the lead-in wire of IC.
As shown in Figure 2, image processing apparatus 6 has: shoot part 25, and it is taken the electronic unit 31 as reference object thing; Calculating part 26, it is implemented filtering to photographic images and processes; And image production part 27, it generates pan focus image based on filtering result of calculation.Electronic unit 31 is so-called BGA, on substrate 36, makes soldered ball 35 on aperture plate, arrange formation.Shoot part 25 makes to take and facing to top, is arranged on pedestal 2, and makes optical axis consistent with Z axis.In the case, by utilization, adsorb suction nozzle 21 electronic unit 31 is moved up and down along the optical axis of shoot part 25, thereby the shooting distance between electronic unit 31 and shoot part 25 is adjusted.Shoot part 25 is by electronic unit 31 is moved up and down along optical axis, thereby with different shooting distances, electronic unit 31 taken.
Each photographic images that 26 pairs of calculating parts are taken by shoot part 25 is implemented filtering and is processed.Here, be not only to use calculating object image, but use previous image and a rear image of calculating object image and calculating object image, implement filtering and process, detailed content is described in the back.Thus, utilize previous image and a rear image of calculating object image, the minimizing of the data bulk that the small-sized with filtering size is accompanied supplements.The filtering result of calculation of image production part 27 based on for each photographic images, compares the pixel data of the same position in a plurality of photographic images.Then, for all pixels of a plurality of photographic images, extract the pixel data of focus, generate 1 pan focus image.
In the image processing apparatus 6 forming like this, from guidance panel 9(with reference to Fig. 1) carry out the setting of electronic unit 31, the setting of the setting of coverage, shooting interval etc.Here, so-called coverage, represents from the scope with respect to till shoot part 25 camera site farthest to nearest camera site.So-called shooting interval, is illustrated in the interval of being taken by shoot part 25 in coverage.As noted above, by setting coverage and shooting interval, thereby utilize shoot part 25 to obtain the different a plurality of photographic images of shooting distance.For example, by coverage is set as to 1mm, shooting interval is set as to 0.05mm, thereby utilizes shoot part 25 to obtain 21 photographic images altogether.
And conveying electronic parts 31 above shoot part 25, utilize shoot part 25 to take electronic unit 31 at the upper limit position place of coverage.Then, utilize absorption suction nozzle 21 to make electronic unit 31 with the shooting interval of fixing, drop to the lower position of coverage, corresponding with shooting interval and utilize 25 pairs of electronic units 31 of shoot part to take.Like this, utilize shoot part 25 to obtain the different a plurality of photographic images of shooting distance.A plurality of photographic images are stored in storer.Each photographic images is read and implements filtering and process from storer by calculating part 26.Here, for whole pixels of a plurality of photographic images, implement filtering and process, for each pixel, calculate filtering result of calculation.
Utilize image production part 27 that the filtering result of calculation of the pixel of the same position in a plurality of photographic images is compared.Then, extract the highest pixel of filtering result of calculation, generate the pan focus image of electronic unit 31.According to the pan focus image of electronic unit 31, bad judgement of the position deviation amount between adsorption site and parts center and electronic unit 31 etc. is checked.For the position deviation amount of electronic unit 31, for example, by according to pan focus image, the edge of electronic unit 31 being detected, thereby check.Whether the bad judgement of electronic unit 31 is for example in allowable value, with interior, to judge according to the height of soldered ball 35.In addition, the calculating part 26 of image processing apparatus 6 and image production part 27 consist of above-mentioned processor and storer etc.
Here, with reference to Fig. 3 to Fig. 7, the filtering as characteristic of the present invention is processed and is elaborated.Fig. 3 is the key diagram that the related filtering of comparative example is processed.Fig. 4 means the figure of an example of the filter curve that comparative example is related.Fig. 5 and Fig. 6 are the key diagrams that the related filtering of present embodiment is processed.Fig. 7 means the figure of an example of the filter curve that present embodiment is related.In addition here, the situation of the height of the soldered ball of mensuration BGA is described.In addition, in Fig. 4 and Fig. 7, the longitudinal axis represents filtering result of calculation, and transverse axis represents shooting distance.
Before the filtering processing related to present embodiment describes, to comparative example, related filtering is processed and is described.As shown in Figure 3A, in the situation that the height of soldered ball 35 is measured, preferably near pixel soldered ball 35 center is as the pixel of calculating object and use.As shown in Figure 3 B, in the situation that filtering size is set as to 7 * 7, can more guarantee data bulk, therefore, filtering result of calculation is stable.Therefore, as shown in Figure 4 A, in curve map, represent that the filter curve of filtering result of calculation becomes smoothly, measure accurately the height of soldered ball 35.
But, due near the pixel data comprising in filtering frame 39 soldered ball edge 37, so it is determined at the height of interior soldered ball 35 to comprise soldered ball brim height.Therefore,, although wish to measure near the height in soldered ball 35 center, near pixel datas soldered ball edge 37 are highlighted, and cannot measure the height of the soldered ball 35 of original needs.On the other hand, as shown in Figure 3 C, in the situation that filtering size is set as to 3 * 3, can soldered ball edge 37 be got rid of from filtering frame 39 is interior, but owing to cannot guaranteeing fully data bulk, so filtering result of calculation is unstable.Therefore, as shown in Figure 4 B, in filter curve, form concavo-convexly, cannot measure accurately the height of soldered ball 35.
In addition, the concerned pixel of Fig. 3 B, 3C is selected any 1 pixel of the calculating object pixel of Fig. 3 A.
Therefore, in the present embodiment, owing to not only using calculating object image, but also previous image and a rear image are processed for filtering, institute, so that data bulk increases, makes filtering result of calculation stable.Below, to present embodiment, related filtering is processed and is described.
As shown in Figure 5, because a plurality of photographic images are the images that obtain after same target being taken with different shooting distances, for example, so can consider along short transverse (Z-direction) arrangement (obtaining in the above description, 21 photographic images altogether).Now, the photographic images in stage casing represents calculating object image, and the photographic images of epimere represents to compare with calculating object image the previous image of first taking, and the photographic images of hypomere represents to compare with calculating object image a rear image of rear shooting.In addition, in Fig. 5, only show 1 part of each photographic images, labelled each key element of mark represents the pixel of photographic images.
In the related filtering of above-mentioned comparative example is processed, be only used as 9 pixels (No. 10-No. 18) of calculating object image, carry out usining processing as the filtering centered by the concerned pixel of No. 14 pixels.In the present embodiment, except this filtering is processed, 9 pixels (No. 1-No. 9) of 9 pixels of previous image (No. 19-No. 27) and a rear image are also contained in filtering processing.Specifically, as shown in Figure 5, process in the same manner with the filtering that comparative example is related, in XY plane, centered by concerned pixel (No. 14), set 3 * 3 filtering.Thus, according to concerned pixel (No. 14) and neighboring pixel (No. 10-No. 13, No. 15-No. 18), obtain the filtering result of calculation in XY plane.
In addition, as shown in Figure 6A, in YZ plane, set 3 * 3 filtering centered by concerned pixel (No. 14).Thus, according to concerned pixel (No. 14) and neighboring pixel (No. 2, No. 5, No. 8, No. 11, No. 17, No. 20, No. 23, No. 26), obtain the filtering result of calculation in YZ plane.In addition, as shown in Figure 6B, in XZ plane, set 3 * 3 filtering centered by concerned pixel (No. 14).Thus, according to concerned pixel (No. 14) and neighboring pixel (No. 4-No. 6, No. 13, No. 15, No. 22-No. 24), obtain the filtering result of calculation in XZ plane.Then, the mean value of the filtering result of calculation in XY plane, filtering result of calculation in YZ plane, filtering result of calculation in XZ plane is calculated.
As noted above, not only in calculating object image, and to cross over the mode of the different a plurality of photographic images of shooting distance, filtering is set, data bulk is increased.In the case, as long as be configured to for 1 row pixel of 1 row pixel centered by concerned pixel (No. 14) and the previous image corresponding with this 1 row pixel and a rear image, set filtering, be not limited to the filtering of YZ plane and XZ plane.For example, also can in the plane that makes XZ plane after rotate ± 45 degree of Z axis, set filtering.Thus, the filtering result of calculation of can use the filtering result of calculation obtained according to concerned pixel (No. 14) and neighboring pixel (No. 3, No. 5, No. 7, No. 12, No. 16, No. 21, No. 23, No. 25), obtaining according to concerned pixel (No. 14) and neighboring pixel (No. 1, No. 5, No. 9, No. 10, No. 18, No. 19, No. 23, No. 27).Therefore, can further increase data bulk, can make filtering result of calculation stable.
In addition, also can with calculating object image in the same manner, for previous image and a rear image setting and the parallel plane filtering of XY.; also can use the filtering result of calculation in the pixel corresponding with concerned pixel and neighboring pixel of calculating object image of the concerned pixel of calculating object image and the filtering result of calculation in neighboring pixel and previous image and a rear image, carry out filtering processing.In the example of Fig. 5, to the filtering result of calculation of 9 pixels (No. 1-No. 9) of the filtering result of calculation of 9 pixels of the filtering result of calculation of 9 of calculating object image pixels (No. 10-No. 18), previous image (No. 19-No. 27) and a rear image and average.In addition, also can will combine with the filtering vertical with XY plane with the parallel plane filtering of XY.By the setting of this filtering, can make data bulk increase.
In addition, in the above description, be configured to together with calculating object image previous image and a rear image are processed for filtering, but be not limited to this structure.Also can be together with calculating object image some in previous image and a rear image be processed for filtering.In addition, front image is not limited to compare with calculating object image the image of front 1 shooting, can be also the image of taking more before.In the same manner, rear image is not limited to compare with calculating object image the image of rear 1 shooting, can be also more to lean on the image of rear shooting.In addition, also can together with calculating object image, a plurality of front images and/or a plurality of rear image be processed for filtering.As noted above, by increase, be used for the pixel quantity of filtering, thereby can make data bulk increase, but preferably adjust with assessing the cost corresponding.
In addition, also can, for calculating object image and previous image and a rear image, change the weighting that filtering is processed.For example, also the weighting of the pixel data of previous image and a rear image can be made as and compare low with the pixel data of calculating object image.Conventionally, in the situation that 27 pixels shown in Fig. 5 are averaged to filtering, the filter factor of all pixels is made as to " 1 " and divided by 27.In the situation that utilizing equalization filtering to change weighting, the filter factor of 9 pixels of calculating object image is made as to " 1 ", the filter factor of 18 pixels of previous image and a rear image is made as to " 0.5 ", and divided by 27.In the case, also can from calculating object image start along with camera site away from, reduce the weighting of the pixel data of previous image and a rear image.
In addition, in the situation that utilize continuous 5 photographic images that amount to by image, calculating object image construction after 2 front images, 2 to carry out filtering processing, also can set weighting.For example, the filter factor of 9 pixels of calculating object image is made as to " 1 ", the filter factor of 18 pixels of the previous image adjacent with calculating object image and a rear image is made as to " 0.5 ", the filter factor of 18 pixels of the most front front image and last rear image is made as to " 0.1 ", and divided by 27.
In addition, the size of filter factor also can be with corresponding and change at a distance of the distance of concerned pixel.For example, also can be for along Z-direction 2 pixels (No. 5, No. 23) adjacent with concerned pixel (No. 14), filter factor is made as " 0.5 ", for 8 adjacent obliquely pixels (No. 1, No. 3, No. 7, No. 9, No. 19, No. 21, No. 25, No. 27), filter factor is made as " 0.3 ".
In addition, in the above description, be configured to plane setting filtering, but be not limited to this structure.Also filtering can be set as to linearity.For example, also can utilize 3 pixels (No. 5, No. 14, No. 23) of arranging along Z-direction to carry out filtering processing.In addition, also can average the filtering result of calculation of the filtering result of calculation of the filtering result of calculation of 3 pixels (No. 13-No. 15) of arranging along X-direction in calculating object image, 3 pixels (No. 22-No. 24) of arranging along X-direction in previous image and 3 pixels (No. 4-No. 6) of arranging along X-direction in a rear image.
In addition, also can, after above-mentioned filtering is processed, further append and carry out filtering processing.That is, replace the pixel data of each pixel, and implement filtering as noted above for the filtering result of calculation in each pixel, process.Utilize this structure, can in the filtering of appending is processed, guarantee sufficient data bulk, make filtering result of calculation stable.
By utilizing above-mentioned filtering to process, make as shown in Figure 7 the data bulk of pixel data increase, thereby can obtain level and smooth filter curve.Filter curve changes with curve mode at the position surrounding with solid line W1, in this curved portion, corresponding with shooting distance and when the variable quantity of filtering result of calculation is diminished, carry out transition.Near the flex point of this curved portion, with respect to the data value of calculating object image, it is large that the impact of the data value of previous image and a rear image becomes, and therefore, also can reduce data bulk.
On the contrary, filter curve changes point-blank at the position surrounding with dotted line W2, in this straight line portion, corresponding with shooting distance and make the variable quantity transition regularly of filtering result of calculation.In this curved portion, due to the data value with respect to calculating object image, the impact of the data value of previous image and a rear image is less, therefore, also can increase data bulk.As noted above, also can be corresponding with the variable quantity of filter curve and adjust data bulk.In addition, also can replace the adjustment of data bulk is changed to filter factor, also can make the adjustment of data bulk and the change of filter factor parallel.
Image processing apparatus as noted above, related according to present embodiment, comprises calculating object image at the interior photographic images of 2 that is more than or equal to by use, thereby can increase the data bulk calculating for filtering.Therefore, even if filtering size decreases also can be guaranteed sufficient data bulk, make filtering result of calculation stable, can't reduce mensuration precision.In addition, when measuring the height of soldered ball 35 of BGA etc., the filtering of soldered ball edge 37 being got rid of even reduce filtering size is processed, and also can guarantee sufficient data bulk.
In addition, the present invention is not limited to above-mentioned embodiment, can carry out various changes enforcement.In the above-described embodiment, for the illustrated size of accompanying drawing and shape etc., be not limited thereto, can suitably change in the scope of performance effect of the present invention.In addition, so long as do not depart from the scope of the object of the invention, can suitably change and implement.
For example, in the present embodiment, exemplified and used filtering result of calculation to generate the structure of pan focus image, and be illustrated, but be not limited to this structure.The related filtering of present embodiment is processed also and can be processed for other images.
Industrial applicibility
As described above, even if the present invention has and reduces filtering size and also can make the effect that filtering result of calculation is stable, be specially adapted to generate image processing apparatus and the image processing method of the pan focus image of determination object thing.
Claims (8)
1. an image processing apparatus, it is implemented filtering to photographic images and processes,
It is characterized in that having:
Shoot part, it is taken determination object thing with different shooting distances, obtains a plurality of photographic images; And
Calculating part, it uses in described a plurality of photographic images, comprise calculating object image and other photographic images at the interior photographic images that is more than or equal to 2, implements filtering and processes.
2. image processing apparatus according to claim 1, is characterized in that,
Described calculating part is used the filtering result of calculation of 1 row pixel of the filtering result of calculation of the concerned pixel of described calculating object image and the neighboring pixel of described concerned pixel and 1 row pixel centered by the described concerned pixel of described calculating object image and described other photographic images corresponding with the described 1 row pixel of this calculating object image, carries out filtering processing.
3. image processing apparatus according to claim 1 and 2, is characterized in that,
Described calculating part use the filtering result of calculation of the concerned pixel of described calculating object image and the neighboring pixel of described concerned pixel and in described other photographic images the filtering result of calculation of the pixel corresponding with the concerned pixel of described calculating object image and neighboring pixel, carry out filtering processing.
4. image processing apparatus according to claim 1 and 2, is characterized in that,
Described other photographic images are to compare the previous image of first taking and a rear image of comparing rear shooting with described calculating object image with described calculating object image.
5. image processing apparatus according to claim 1 and 2, is characterized in that,
When described calculating part further appends and implements filtering and process after described filtering is processed, use and comprise described calculating object image and described other photographic images in the interior previous filtering result of calculation that is more than or equal to the photographic images of 2.
6. image processing apparatus according to claim 1 and 2, is characterized in that,
Described calculating part is weighted and implements filtering and process for described calculating object image and described other photographic images.
7. image processing apparatus according to claim 1 and 2, is characterized in that,
Have image production part, its filtering result of calculation based on to described a plurality of photographic images, generates pan focus image.
8. an image processing method, it is implemented filtering to photographic images and processes,
It is characterized in that thering is following step:
With different shooting distances, determination object thing taken and obtained the step of a plurality of photographic images; And
Use in described a plurality of photographic images, comprise calculating object image and other photographic images at the interior photographic images that is more than or equal to 2, implement the step that filtering is processed.
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| JP2012-189953 | 2012-08-30 | ||
| JP2012189953A JP6147971B2 (en) | 2012-08-30 | 2012-08-30 | Image processing apparatus and image processing method |
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| CN105472960A (en) * | 2014-09-29 | 2016-04-06 | Juki株式会社 | Electronic component installing device |
| CN109257922A (en) * | 2017-07-13 | 2019-01-22 | Juki株式会社 | Electronic component mounting apparatus and electronic component mounting method |
| CN109257921A (en) * | 2017-07-13 | 2019-01-22 | Juki株式会社 | Electronic component mounting apparatus and electronic component mounting method |
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Also Published As
| Publication number | Publication date |
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| JP2014048799A (en) | 2014-03-17 |
| JP6147971B2 (en) | 2017-06-14 |
| CN103673889B (en) | 2018-11-09 |
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