CN107609547B - Method and device for quickly identifying stars and telescope - Google Patents
Method and device for quickly identifying stars and telescope Download PDFInfo
- Publication number
- CN107609547B CN107609547B CN201710794826.3A CN201710794826A CN107609547B CN 107609547 B CN107609547 B CN 107609547B CN 201710794826 A CN201710794826 A CN 201710794826A CN 107609547 B CN107609547 B CN 107609547B
- Authority
- CN
- China
- Prior art keywords
- starry sky
- sky image
- star
- image
- identification equipment
- 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
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000005259 measurement Methods 0.000 claims description 26
- 238000007781 pre-processing Methods 0.000 claims description 14
- 230000009467 reduction Effects 0.000 claims description 11
- 238000013507 mapping Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 description 8
- 230000005855 radiation Effects 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/10—Image acquisition
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Image Analysis (AREA)
- Navigation (AREA)
Abstract
The invention discloses a method, a device and a telescope for quickly identifying stars, wherein the identification method comprises the steps of obtaining star information to be identified, wherein the star information comprises a target angle coordinate; adjusting the angle coordinate of the identification equipment according to the target angle coordinate; shooting a first starry sky image at the current angle coordinate by using the identification equipment; searching in a corresponding starry sky database to obtain a second starry sky image according to the target angle coordinate and the current view field angle of the identification equipment; and comparing the first starry sky image with the second starry sky image, and identifying the star to be identified in the first starry sky image according to the comparison result. The telescope does not need to be calibrated after being started, the starry sky database is used for simulating the current telescope, and the actually shot starry sky image is compared with the simulated starry sky image to realize quick satellite finding.
Description
Technical Field
The invention relates to the field of astronomical telescope, in particular to a method and a device for quickly identifying a star and a telescope.
Background
A telescope is an optical instrument that uses lenses or mirrors, as well as other optical devices, to view a remote object. The light rays passing through the lens are refracted or reflected by the concave mirror to enter the small hole and be converged to form an image, and then the image is seen through a magnifying eyepiece.
In the prior art, due to the existence of mechanical rotation errors of a telescope, the errors of equipment are calibrated in advance before star detection, and then star finding is carried out.
With the development of science and technology and the progress of graphic processing technology, a composition star finding technology is developed, that is, two star maps are patterned to identify whether the two star maps have differences, but the technology has the following defects:
a. noise exists in the image, and the confusion effect is realized on the composition star object;
b. the composition algorithm is complex, even enters dead cycle, and the response speed is slow;
c. the accuracy of the image comparison result is low under the recognition of the composition algorithm.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a method and a device for quickly identifying stars and a telescope. The technical scheme is as follows:
in one aspect, the invention provides a method for quickly identifying a star, which comprises the following steps:
acquiring star information to be identified, wherein the star information comprises a target angle coordinate;
adjusting the angle coordinate of the identification equipment according to the target angle coordinate;
shooting a first starry sky image at the current angle coordinate by using the identification equipment;
searching in a corresponding starry sky database to obtain a second starry sky image according to the target angle coordinate and the current view field angle of the identification equipment;
and comparing the first starry sky image with the second starry sky image, and identifying the star to be identified in the first starry sky image according to the comparison result.
Further, before searching the corresponding starry sky database for the second starry sky image, the method further includes:
acquiring position information of the identification equipment;
acquiring current time information;
and mapping to obtain the corresponding space database according to the position information and the time information.
Further, the comparing the first starry sky image and the second starry sky image includes:
carrying out noise reduction preprocessing on the first starry sky image;
selecting three or more than three measuring stars in the preprocessed first starry sky image;
obtaining a star distance ratio value in the first starry sky image according to the measured star;
searching for a star body meeting the distance proportion value in the second starry sky image, and if the star body does not exist in the second starry sky image, judging that the comparison result is that the first starry sky image is not matched with the second starry sky image.
Further, if the search result shows that the star bodies meeting the distance proportion value exist in the second starry sky image, the measurement star bodies are reselected, the first starry sky image and the second starry sky image are compared for one time or more times, and if the search result shows that the first starry sky image and the second starry sky image are matched, the comparison result is judged.
Further, if the first starry sky image is matched with the second starry sky image, adjusting the focal length of the identification device, re-shooting the image to obtain a third starry sky image, searching a corresponding starry sky database according to the target angle coordinate and the adjusted current view field angle to obtain a fourth starry sky image,
and if the comparison result of the third starry sky image and the fourth starry sky image or the second starry sky image is matched, continuously adjusting the focal length of the identification equipment, and repeatedly executing the comparison step until the star to be identified is identified.
Further, if the first starry sky image is not matched with the second starry sky image, the angle coordinate of the identification device is further adjusted until the comparison result of the newly shot starry sky image and the second starry sky image is matched.
On the other hand, the invention provides a device for quickly identifying stars, which comprises:
the target star body module is used for acquiring star body information to be identified, and the star body information comprises a target angle coordinate;
the adjusting module is used for adjusting the angle coordinate of the identification equipment according to the target angle coordinate;
the shooting module is used for shooting a first starry sky image at the current angle coordinate by utilizing the identification equipment;
the starry sky searching module is used for searching a corresponding starry sky database according to the target angle coordinate and the current view field angle of the identification equipment to obtain a second starry sky image;
and the comparison module is used for comparing the first starry sky image with the second starry sky image and identifying the star to be identified in the first starry sky image according to the comparison result.
Further, the device still includes the starry sky database module, the starry sky database module includes:
the position unit is used for acquiring the position information of the identification equipment;
the time unit is used for acquiring current time information;
and the mapping unit is used for mapping to obtain the corresponding space database according to the position information and the time information.
Further, the alignment module comprises:
the preprocessing unit is used for carrying out noise reduction preprocessing on the first starry sky image;
the measurement unit is used for selecting three or more measurement stars in the preprocessed first starry sky image;
the ratio value unit is used for obtaining a ratio value of the distance of the star in the first starry sky image according to the measured star;
and the star body searching unit is used for searching the star bodies meeting the distance proportion value in the second star sky image, and if the star bodies do not exist, the comparison result is judged that the first star sky image is not matched with the second star sky image.
Furthermore, the device also comprises a focal length adjusting module and an angle adjusting module,
the focal length adjusting module is used for adjusting the focal length of the identification equipment until the star to be identified is identified;
the angle adjusting module is used for responding to the mismatching of the first starry sky image and the second starry sky image, and further adjusting the angle coordinate of the identification device until the comparison result of the re-shot starry sky image and the second starry sky image is matching.
In a further aspect, the invention provides a telescope comprising a fast star recognizer as described above.
The technical scheme provided by the invention has the following beneficial effects:
1) after the telescope is started, error calibration is not required in advance, and quick satellite finding is realized;
2) the star database is used for simulating the current telescope, and the actual shot star image is compared with the simulated star image, so that the fast star finding is realized, and the star body identification speed and accuracy are greatly improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a flow chart of a method for fast recognition of stars according to an embodiment of the present invention;
FIG. 2 is a flowchart of a method for mapping a space database according to an embodiment of the present invention;
FIG. 3 is a flowchart of an image comparison method according to an embodiment of the present invention;
FIG. 4 is a block diagram of a fast star recognizer according to an embodiment of the present invention;
fig. 5 is a flowchart of a method for performing noise reduction preprocessing on a starry sky image according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, article, or device that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or device.
Example 1
In an embodiment of the present invention, a method for quickly identifying stars is provided, and referring to fig. 1, the method includes the following processes:
and S1, acquiring the star information to be identified.
Wherein the star information comprises target angular coordinates. Specifically, the following two ways are available for obtaining the angular coordinate of the target star to be identified: the first mode is to look up data, and to inquire the angle coordinate of the target star to be searched through the document data in the prior art; the second way is to click and query from the existing star database or query according to the search condition to obtain the angle coordinate of the target star to be searched.
And S2, adjusting the angle coordinate of the identification equipment according to the target angle coordinate.
Specifically, the identification device is a telescope, the angle coordinate of the telescope is automatically adjusted by a manual mode or an electronic control technology, and the angle coordinate of the telescope is adjusted to be a target angle coordinate. However, in this practical operation, a mechanical error occurs to some extent, and this error needs to be checked, and the checking process is as follows:
and S3, shooting a first starry sky image at the current angle coordinate by using the identification equipment.
Specifically, a camera device or a camera sensor may be used to take a photo of a starry sky observed by a lens under the current angle coordinate of the telescope and the current view field angle, so as to obtain a first starry sky image, which is the starry sky image to be verified, and preferably, the camera device or the camera sensor is a CCD sensor.
And S4, searching in a corresponding starry sky database according to the target angle coordinate and the current view field angle of the identification equipment to obtain a second starry sky image.
Before this, a space database needs to be established, a current corresponding space database is mapped, and the current corresponding space database is mapped to simulate the current space; then, taking the target angle coordinate and the current view field angle of the identification equipment as initial conditions for searching in a starry sky database, and simulating the telescope with zero mechanical error under the current starry sky; and finally, obtaining a second starry sky image which is the corrected reference object according to the target angle coordinate and the current view field angle of the identification equipment.
As the starry sky seen from different directions is different, the starry sky seen at different time in the same place is also different, the corresponding starry sky database simulates the starry sky in the current environment, and referring to fig. 2, the starry sky database is obtained by mapping through the following processes:
s41, acquiring position information of the identification equipment, wherein the position information is geographical position information of the telescope, and specifically comprises a precision coordinate and a latitude coordinate of the telescope;
s42, acquiring current time information;
and S43, mapping to obtain a current space database according to the position information and the time information, wherein the current space database is the corresponding space database in the step S4.
And S5, comparing the first starry sky image with the second starry sky image, and identifying the star to be identified in the first starry sky image according to the comparison result.
Specifically, the first starry sky image and the second starry sky image are compared, actually, the starry sky image to be verified and the corrected reference starry sky image are matched and compared, if the two images are matched to be consistent, it is determined that a target star to be recognized exists under the current lens (in the first starry sky image), and otherwise, it is determined that the target star does not exist under the current lens.
Specifically, referring to fig. 3, the comparing the first starry sky image and the second starry sky image includes the following steps:
s51, carrying out noise reduction preprocessing on the first starry sky image, wherein the picture shot by the CCD has noise points which are white points and cause confusion on the judgment result of the star body, so that the first starry sky image needs to be subjected to noise reduction, the bright points judged as the noise points are removed, and the remaining bright points are guaranteed to be the star body;
s52, selecting three or more measurement stars in the preprocessed first starry sky image;
s53, obtaining a star distance ratio value in the first starry sky image according to the measured star;
s54, searching stars meeting the distance proportion value in the second starry sky image;
s55, judging whether the search result has a star meeting the distance proportion value, if not, executing S56;
and S56, judging that the comparison result is that the first starry sky image is not matched with the second starry sky image.
The following description is made of a specific operation of the noise reduction preprocessing in step S51, referring to fig. 5, where the noise reduction preprocessing includes the following flow:
s511, finding the pixel point with the maximum brightness in the picture, marking the position as (x1, y1) and marking the brightness as Pmax；
S512, taking the pixel point with the maximum brightness as the circle center and r as0Calculating the average brightness value in the range as A0；
S513, if Pmax-A0<k*PmaxThen adjust r0Is r0+rstepUp to Pmax-A0≥k*PmaxWhere k is the set noise reduction coefficient, rstepIs a radius step adjustment value;
s514, if r0≥rthWherein r isthFor a set radius threshold, where r0If the adjusted new radius value is the adjusted new radius value, the pixel point with the maximum brightness is judged to be a star point, and S515 is continuously executed, otherwise, the pixel point is judged to be noise, and the pixel point is deleted;
s515, judging whether the total number of the star points found currently is larger than CthWherein, CthDetermining the star number for the set requirement, if yes, executing S516, otherwise, the circle center is (x1, y1), and the radius is r0Steps S511-S514 are repeatedly performed in pictures outside the range of (the adjusted new radius value);
and S516, sending the found star point coordinates into an identification algorithm for judgment, if the number of star points in the picture is insufficient, randomly moving the telescope lens barrel to a position, and shooting the picture again for calculation.
In this embodiment, a characteristic that a star has a stronger radiation force than a noise point is used for performing denoising preprocessing, that is, the star is easier to radiate light to the surroundings, so that the surrounding brightness is higher than the brightness around the noise point, in a preferred embodiment, k is preferably 0.05, that is, it is determined that a bright point radiates outwards, so that the average brightness of a radiation area is less than the radiation radius of 95% of the brightness of a pixel of the bright point, if the radiation radius is less than a set radius threshold, the bright point is determined to be noise, and the bright point is deleted from a star sky image, otherwise, the bright point is determined to be the star, and r is the above-mentioned r0Are the current updated latest adjusted radius values.
It should be noted that, in this embodiment, the denoising operation performed on the first starry sky image is one of the preprocessing steps for realizing fast recognition of a star, and the core of the present invention is to simulate the current telescope by using the starry sky database, and compare the actually shot starry sky image with the simulated starry sky image to realize calibration-free fast star finding.
If the search result indicates that there are stars in the second starry sky image that satisfy the distance ratio, it is directly determined that the first starry sky image matches the second starry sky image, as described in detail below, or, in order to ensure the accuracy of the comparison result, steps S52-S55 need to be further performed on the first starry sky image and the second starry sky image, as described in detail below.
In an embodiment of the present invention, when S52 is executed, a sufficient number of measurement stars are selected, for example, 18 stars exist in the second starry sky image, 15 stars exist in the denoised first starry sky image, 12 or more/all stars are selected as measurement stars, one of the measurement stars is used as a reference star, distances between the reference star and other measurement stars are measured, and a ratio of star distances is obtained, the more the measurement stars are measured, the higher the accuracy is, and when the ratio of the measurement stars to the total star number is large enough, it can be directly determined whether the first starry sky image matches the second starry sky image through a search of the ratio of the distances between the measurement stars and the second starry sky image.
In another embodiment of the present invention, when performing S52, only three or four measurement stars are selected, and then after the first search for the distance ratio value of the second starry sky image is completed, if there is any measurement star, another measurement star is reselected, and S53 and S54 are repeatedly performed, where the more times of repetition, the higher the accuracy of the comparison result is.
Specifically, one measurement star is selected, two measurement stars which are closest to the measurement star and can form a triangle are searched, the side length of the triangle is measured to obtain the side length ratio, whether three stars exist in a second star image or not is searched according to the side length ratio to form the triangle with the same side length ratio, if the three stars exist, the other two measurement stars which are closest to the star and can form the triangle are searched respectively by taking the other two measurement stars as a reference, the process is defined as one iteration, and if the search results of the two iterations are that the star meeting the distance ratio value exists in the second star image, the first star image is judged to be matched with the second star image. It should be noted that the more the number of iterations is, the more accurate the determination result is, after measurement and calculation, the twice iterations are performed, the accuracy can reach more than 95%, and the accuracy can reach more than 99% after three iterations are performed.
It should be noted that, in the embodiment of the present invention, there is an essential difference between the method for forming a triangle by three stars and the composition star finding in the prior art, the method does not belong to the composition technology, and the formation of the triangle is only used for measuring the side length of the triangle.
Different from the above embodiment, in addition to searching for another measurement star based on another two measurement stars, a completely different measurement star may be reselected, and the first starry sky image and the second starry sky image are compared again or for multiple times, and the comparison object may select a distance ratio from the reference star to another star in addition to the side length ratio of the triangle or other polygons provided in the above embodiment. The distance proportion in the first starry sky image is extracted in a specific mode, and the technical scheme of taking the proportion as a matching basis for comparison falls into the scope of the claims of the application.
After the first starry sky image is determined to be matched with the second starry sky image, it is equivalent to that the shot first starry sky image contains a target star to be identified, and in order to further position the target star, the target star needs to be focused, and the specific process is as follows:
the method comprises the steps that a target star is possibly separated from a field of view as the focal length is reduced, the field of view angle is reduced, a current star-sky picture is required to be continuously shot for the purpose, namely a first star-sky image under a new field of view angle is defined as a third star-sky image, the third star-sky image is compared with a second star-sky image, if the comparison result is matched, the focal length of identification equipment is continuously adjusted, and the steps of shooting a new first star-sky image and comparing the new first star-sky image with the second star-sky image are repeatedly executed until the target star to be identified is identified.
In another embodiment of the present invention, a new second starry sky image is searched in a corresponding starry sky database according to the target angle coordinate and the adjusted current field angle, and the new second starry sky image is defined as a fourth starry sky image, and the new first starry sky image (including the third starry sky image) is compared with the new second starry sky image (including the fourth starry sky image), so that the technical solution of the present invention can be implemented.
If the target star to be identified does not exist in the currently shot first star sky image, the first star sky image is not matched with the second star sky image, the target star coordinate is adjusted according to the known relation between the current star sky coordinate and the target star coordinate, namely the angle coordinate of the identification equipment is further adjusted until the comparison result of the newly shot star sky image and the second star sky image is matched.
Example 2
In an embodiment of the present invention, the present invention provides a device for fast identifying stars, including:
a target star module 410, configured to obtain star information to be identified, where the star information includes a target angle coordinate;
the adjusting module 420 is used for adjusting the angle coordinate of the identification device according to the target angle coordinate;
the shooting module 430 is used for shooting a first starry sky image at the current angle coordinate by using the identification equipment;
the starry sky searching module 440 is configured to search a corresponding starry sky database according to the target angle coordinate and the current view field angle of the identification device to obtain a second starry sky image;
the comparison module 450 is configured to compare the first starry sky image with the second starry sky image, and identify a star to be identified in the first starry sky image according to a comparison result.
Further, the device further comprises a starry sky database module 460, wherein the starry sky database module 460 comprises:
a location unit 461, configured to obtain location information of the identification device;
a time unit 462, configured to obtain current time information;
a mapping unit 463, configured to map the corresponding space database according to the location information and the time information.
Further, the alignment module 450 includes:
a preprocessing unit 451, configured to perform noise reduction preprocessing on the first starry sky image;
a measuring unit 452, configured to select three or more measuring stars in the preprocessed first starry sky image;
a proportion value unit 453, configured to obtain a ratio of a star distance in the first starry sky image according to the measured star;
a star searching unit 454, configured to search for a star meeting the distance ratio value in the second starry sky image, and if the star does not exist, determine that the comparison result is that the first starry sky image is not matched with the second starry sky image.
Further, the apparatus further comprises a focal length adjusting module 470 and an angle adjusting module 480,
the focal length adjusting module 470 is configured to adjust the focal length of the identification device until a star to be identified is identified;
the angle adjusting module 480 is configured to further adjust the angle coordinate of the identification device in response to that the first starry sky image is not matched with the second starry sky image until the comparison result between the re-captured starry sky image and the second starry sky image is a match.
In another embodiment of the invention, the invention provides a telescope, which comprises the fast star recognition device in the embodiment.
It should be noted that: in the above embodiment, when the fast star recognition apparatus performs star recognition, only the division of the functional modules is used for illustration, and in practical applications, the function distribution may be completed by different functional modules according to needs, that is, the internal structure of the fast star recognition apparatus is divided into different functional modules to complete all or part of the above-described functions. In addition, the embodiment of the device for quickly identifying a star body provided by this embodiment and the method for quickly identifying a star body provided by the above embodiment belong to the same concept, and specific implementation processes thereof are described in the method embodiment and are not described herein again.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A method for quickly identifying stars is characterized by comprising the following steps:
acquiring star information to be identified, wherein the star information comprises a target angle coordinate;
adjusting the angle coordinate of the identification equipment according to the target angle coordinate;
shooting a first starry sky image at the current angle coordinate by using the identification equipment;
searching in a corresponding starry sky database to obtain a second starry sky image according to the target angle coordinate and the current view field angle of the identification equipment;
comparing the first starry sky image with the second starry sky image, and identifying the star to be identified in the first starry sky image according to the comparison result; if the first starry sky image is not matched with the second starry sky image, further adjusting the angle coordinate of the identification equipment until the comparison result of the re-shot starry sky image and the second starry sky image is matched;
if the first starry sky image is matched with the second starry sky image, adjusting the focal length of the identification equipment to focus the to-be-identified star, and re-shooting the image to obtain a third starry sky image, if the comparison result of the third starry sky image and the second starry sky image is matched, continuously adjusting the focal length of the identification equipment, and repeatedly executing the comparison step until the to-be-identified star is identified; or searching a corresponding starry sky database according to the target angle coordinate and the adjusted current view field angle to obtain a fourth starry sky image, if the comparison result of the third starry sky image and the fourth starry sky image is matched, continuously adjusting the focal length of the identification equipment, and repeatedly executing the comparison step until the star body to be identified is identified.
2. The method of claim 1, further comprising, prior to searching the corresponding starry sky database for the second starry sky image:
acquiring position information of the identification equipment;
acquiring current time information;
and mapping to obtain the corresponding space database according to the position information and the time information.
3. The method of claim 1, wherein said aligning a first starry sky image with a second starry sky image comprises:
carrying out noise reduction preprocessing on the first starry sky image;
selecting three or more than three measuring stars in the preprocessed first starry sky image;
obtaining a star distance ratio value in the first starry sky image according to the measured star;
searching for a star body meeting the distance proportion value in the second starry sky image, and if the star body does not exist in the second starry sky image, judging that the comparison result is that the first starry sky image is not matched with the second starry sky image.
4. The method according to claim 3, wherein if the search result indicates that there is a star meeting the distance ratio in the second starry sky image, the measurement star is reselected, the first starry sky image and the second starry sky image are compared one more time or more times, and if the search result indicates that there is a star meeting the distance ratio, the comparison result is determined to be that the first starry sky image and the second starry sky image are matched.
5. A fast recognition device for stars, comprising:
the target star body module is used for acquiring star body information to be identified, and the star body information comprises a target angle coordinate;
the adjusting module is used for adjusting the angle coordinate of the identification equipment according to the target angle coordinate;
the shooting module is used for shooting a first starry sky image at the current angle coordinate by utilizing the identification equipment;
the starry sky searching module is used for searching a corresponding starry sky database according to the target angle coordinate and the current view field angle of the identification equipment to obtain a second starry sky image;
the comparison module is used for comparing the first starry sky image with the second starry sky image and identifying the star to be identified in the first starry sky image according to the comparison result;
the angle adjusting module is used for responding to the mismatching of the first starry sky image and the second starry sky image, and further adjusting the angle coordinate of the identification equipment until the comparison result of the re-shot starry sky image and the second starry sky image is matching;
the focal length adjusting module is used for adjusting the focal length of the identification equipment, the shooting module shoots an image again to obtain a third starry sky image, the comparison module compares the third starry sky image with the second starry sky image, if the comparison result is matching, the focal length of the identification equipment is continuously adjusted, and the comparison step is repeatedly executed until a star to be identified is identified; or, according to the target angle coordinate and the adjusted current view field angle, the starry sky searching module searches a corresponding starry sky database to obtain a fourth starry sky image, the comparison module compares the third starry sky image with the fourth starry sky image, if the comparison result is matching, the focal length of the identification equipment is continuously adjusted, and the comparison step is repeatedly executed until the to-be-identified star is identified.
6. The device of claim 5, further comprising a starry sky database module, the starry sky database module comprising:
the position unit is used for acquiring the position information of the identification equipment;
the time unit is used for acquiring current time information;
and the mapping unit is used for mapping to obtain the corresponding space database according to the position information and the time information.
7. The apparatus of claim 5, wherein the alignment module comprises:
the preprocessing unit is used for carrying out noise reduction preprocessing on the first starry sky image;
the measurement unit is used for selecting three or more measurement stars in the preprocessed first starry sky image;
the ratio value unit is used for obtaining a ratio value of the distance of the star in the first starry sky image according to the measured star;
and the star body searching unit is used for searching the star bodies meeting the distance proportion value in the second star sky image, and if the star bodies do not exist, the comparison result is judged that the first star sky image is not matched with the second star sky image.
8. A telescope, characterized in that it comprises a device for the rapid identification of stars according to any one of claims 5 to 7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710794826.3A CN107609547B (en) | 2017-09-06 | 2017-09-06 | Method and device for quickly identifying stars and telescope |
| PCT/CN2017/112025 WO2019047378A1 (en) | 2017-09-06 | 2017-11-21 | Rapid celestial body recognition method and device and telescope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710794826.3A CN107609547B (en) | 2017-09-06 | 2017-09-06 | Method and device for quickly identifying stars and telescope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107609547A CN107609547A (en) | 2018-01-19 |
| CN107609547B true CN107609547B (en) | 2021-02-19 |
Family
ID=61057420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710794826.3A Expired - Fee Related CN107609547B (en) | 2017-09-06 | 2017-09-06 | Method and device for quickly identifying stars and telescope |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107609547B (en) |
| WO (1) | WO2019047378A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108594422A (en) * | 2018-05-08 | 2018-09-28 | 光速视觉（北京）科技有限公司 | Electronics finder including its astronomical telescope and electronics seek star computing device |
| CN110352420A (en) * | 2018-09-13 | 2019-10-18 | 陈加志 | A kind of telescope based on image recognition searches star method, searches star device and telescope |
| CN110889353B (en) * | 2019-11-19 | 2023-04-07 | 中国科学院国家天文台长春人造卫星观测站 | Space target identification method based on primary focus large-visual-field photoelectric telescope |
| CN112019745B (en) * | 2020-08-31 | 2021-08-24 | 苏州振旺光电有限公司 | Method for acquiring target image of sky area and astronomical photographing equipment |
| CN112788237B (en) * | 2020-12-30 | 2022-06-21 | 成都星时代宇航科技有限公司 | Celestial body shooting method and device, satellite and computer readable storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1958394A (en) * | 2006-12-01 | 2007-05-09 | 北京航空航天大学 | Quick method for recognizing star map |
| CN103440659A (en) * | 2013-08-30 | 2013-12-11 | 西北工业大学 | Star image distortion detection and estimation method based on star map matching |
| CN106595702A (en) * | 2016-09-22 | 2017-04-26 | 中国人民解放军装备学院 | Astronomical-calibration-based spatial registration method for multiple sensors |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009210875A (en) * | 2008-03-05 | 2009-09-17 | Casio Comput Co Ltd | Celestial body observation apparatus |
| CN104776848B (en) * | 2015-04-20 | 2018-05-22 | 李智 | A kind of Space object identification, positioning, tracking |
| CN105447094A (en) * | 2015-11-09 | 2016-03-30 | 上海斐讯数据通信技术有限公司 | Constellation identification method and apparatus, and mobile terminal |
| CN105892034A (en) * | 2016-04-22 | 2016-08-24 | 宁波舜宇光电信息有限公司 | Star tracker telescope and star tracking system and application thereof |
| CN106506858B (en) * | 2016-12-01 | 2019-10-08 | 努比亚技术有限公司 | Star orbital prediction technique and device |
-
2017
- 2017-09-06 CN CN201710794826.3A patent/CN107609547B/en not_active Expired - Fee Related
- 2017-11-21 WO PCT/CN2017/112025 patent/WO2019047378A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1958394A (en) * | 2006-12-01 | 2007-05-09 | 北京航空航天大学 | Quick method for recognizing star map |
| CN103440659A (en) * | 2013-08-30 | 2013-12-11 | 西北工业大学 | Star image distortion detection and estimation method based on star map matching |
| CN106595702A (en) * | 2016-09-22 | 2017-04-26 | 中国人民解放军装备学院 | Astronomical-calibration-based spatial registration method for multiple sensors |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019047378A1 (en) | 2019-03-14 |
| CN107609547A (en) | 2018-01-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107609547B (en) | Method and device for quickly identifying stars and telescope | |
| CN109509230B (en) | SLAM method applied to multi-lens combined panoramic camera | |
| CN110686677B (en) | Global positioning method based on geometric information | |
| RU2609434C2 (en) | Detection of objects arrangement and location | |
| CN111210468B (en) | Image depth information acquisition method and device | |
| CN113592989B (en) | Three-dimensional scene reconstruction system, method, equipment and storage medium | |
| CN109708649B (en) | Attitude determination method and system for remote sensing satellite | |
| CN111028358B (en) | Indoor environment augmented reality display method and device and terminal equipment | |
| JP2010071782A (en) | Three-dimensional measurement apparatus and method thereof | |
| CN109520500A (en) | One kind is based on the matched accurate positioning of terminal shooting image and streetscape library acquisition method | |
| CN114332225A (en) | Lane line matching positioning method, electronic device and storage medium | |
| CN111239684A (en) | Binocular fast distance measurement method based on YoloV3 deep learning | |
| CN110689571B (en) | Star observation method based on error angle self-adaptive adjustment and astronomical telescope | |
| WO2023035301A1 (en) | A camera calibration method | |
| CN111190199A (en) | Positioning method, positioning device, computer equipment and readable storage medium | |
| RU2571300C2 (en) | Method for remote determination of absolute azimuth of target point | |
| US11847157B2 (en) | Telescope star searching method and device based on image recognition and telescope | |
| CN115620264B (en) | Vehicle positioning method and device, electronic equipment and computer readable medium | |
| RU2583756C2 (en) | Method of signature-based positioning of urban area images in visible and ir bands | |
| US11842452B2 (en) | Portable display device with overlaid virtual information | |
| CN116266402A (en) | Automatic object labeling method and device, electronic equipment and storage medium | |
| CN111238829A (en) | Method and device for determining moving state, computer equipment and storage medium | |
| KR102407802B1 (en) | Apparatus for estimating indoor and outdoor three-dimensional coordinates and orientation based on artificial neaural network learning | |
| Yelubayev et al. | Development of star tracker for satellite | |
| CN113657160A (en) | Ship association method, ship association device and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210219 Termination date: 20210906 |