CN118052863B - Geographic information display method and system - Google Patents
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Abstract
The invention relates to the technical field of geographic information display, and particularly discloses a geographic information display method and a geographic information display system, wherein the method comprises the following steps: confirming a target picture, judging main features, confirming a proper magnification, analyzing the definition of the features and confirming the final magnification; according to the invention, the proper magnification of the target picture is subjected to depth analysis by combining the historical magnification times of the target picture and the magnifications corresponding to each time of magnification, and meanwhile, the feature definition evaluation index corresponding to the target picture is analyzed by combining the outline area corresponding to the other features in the target picture, and the final magnification of the picture to be adjusted is confirmed, so that the problem that a user needs to repeatedly adjust when amplifying the picture is avoided to a certain extent, the searching and browsing time of the user is saved, the coordination of the overall visual effect of the whole picture is improved, and the loss of other important information in the picture is avoided, thereby avoiding the deviation of a guiding analyzer.
Description
Technical Field
The invention belongs to the technical field of geographic information display, and relates to a geographic information display method and a geographic information display system.
Background
Along with the continuous development of technology, the application of a geographic information system is more and more extensive, however, the traditional geographic information display method has the problems of low processing speed, poor visual effect and the like, and is difficult to meet the requirements of modern society on geographic information display, so that a new geographic information display method is necessary to be developed, and the processing speed and the visual effect of picture display are improved through the automatic and intelligent amplification of pictures.
The existing automatic and intelligent amplifying mode for pictures has the following problems: 1. the method has the advantages that the historical amplification times of the target picture and the amplification multiplying factors corresponding to each amplification are not combined, the appropriate amplification multiplying power of the target picture is subjected to depth analysis, the problem that a user needs to repeatedly adjust when amplifying the picture cannot be avoided, the searching and browsing time of the user is wasted, and meanwhile the user experience is influenced.
2. When the target picture is amplified, only whether the definition of the feature objects to be amplified is normal is considered, the definition of the other feature objects in the target picture is not considered, the harmony of the overall visual effect of the whole picture is reduced, and if other feature objects are ignored, other important information in the picture can be lost, so that an analyst is guided to generate deviation, and the watching experience of a user is influenced.
Disclosure of Invention
In view of this, in order to solve the above-mentioned problems in the background art, a method and a system for displaying geographic information are now proposed.
The aim of the invention can be achieved by the following technical scheme: the first aspect of the present invention provides a geographic information display method, including: s1, confirming a target picture: and matching the picture in which the required amplified feature is positioned from a picture library corresponding to the target area map according to the name corresponding to the required amplified feature which is currently input by the target user in a search column of the target area map, and marking the picture as a target picture.
S2, judging main features: and extracting the center point position and the contour area of the target picture, positioning the contour center point position and the contour area of the required amplified feature object from the target picture, judging whether the required amplified feature object belongs to the main feature object of the target picture, executing the step S3 if the required amplified feature object belongs to the main feature object of the target picture, and executing the step S4 if the required amplified feature object does not belong to the main feature object of the target picture.
S3, confirming a proper magnification: and extracting the historical amplification times of the target picture and the amplification factors corresponding to the amplification times, confirming the proper amplification factor of the target picture, and taking the proper amplification factor as the current amplification factor of the target picture.
S4, feature definition analysis: and extracting the outline area corresponding to each other feature from the target picture, analyzing the feature definition evaluation index corresponding to the target picture according to the proper magnification of the target picture, indicating that the proper magnification of the target picture needs to be adjusted if the feature definition evaluation index corresponding to the target picture is smaller than a set value, marking the target picture as a picture to be adjusted, and executing the step S5, otherwise, taking the proper magnification of the target picture as the current magnification of the target picture.
S5, final magnification confirmation: and confirming the final magnification of the picture to be adjusted.
Specifically, the specific matching manner from the picture library corresponding to the target area map to the picture in which the required amplified feature is located is as follows: and matching and comparing the name corresponding to the feature to be amplified with the feature name set corresponding to each picture in the picture library corresponding to the target area map stored in the cloud database, and taking the picture as the picture in which the feature to be amplified is located if the name corresponding to the feature to be amplified is located in the feature name set corresponding to a certain picture in the picture library corresponding to the target area map.
Specifically, the judging whether the required amplified feature is the main feature of the target picture comprises the following specific judging process: a1, obtaining the distance between the center point of the target picture and the contour center point of the required amplified feature according to the center point position of the target picture and the contour center point position of the required amplified feature, and recording as L.
A2, the outline area of the target picture and the outline area of the required magnifying feature are respectively recorded as S FIG. and S Article (B) .
A3, calculating a main evaluation index beta of the target picture corresponding to the required amplified feature,Where L' and K 1 represent the distance and profile area duty cycle of the set reference, respectively, and a 1 and a 2 represent the distance and profile area duty cycle of the set reference, respectively, corresponding to the importance assessment duty cycle weight.
A4, if the main evaluation index of the target picture corresponding to the required amplified feature is larger than or equal to the main evaluation index of the set reference, indicating that the required amplified feature belongs to the main feature of the target picture, otherwise, indicating that the required amplified feature does not belong to the main feature of the target picture.
Specifically, the confirmation process of the proper magnification of the target picture is as follows: b1, recording the historical amplification number of the target picture as epsilon.
And B2, comparing the amplification factors corresponding to the historical amplification factors of the target picture with each other, recording the same amplification factors as comprehensive amplification factors, and counting the amplification times corresponding to the comprehensive amplification factors in the target picture as mu i, wherein i represents the number of the comprehensive amplification factors, i=1, 2.
B3, calculating the adaptation degree χ i corresponding to each comprehensive magnification in the target picture,Wherein K 2 represents the amplification number of times of the set reference.
And B4, taking the comprehensive magnification corresponding to the maximum adaptation degree as the proper magnification of the target picture according to the adaptation degree corresponding to each comprehensive magnification in the target picture.
Specifically, the feature definition evaluation index corresponding to the analysis target picture is obtained by the specific analysis process: c1, calculating definition evaluation indexes corresponding to other features in the target picture according to the contour area corresponding to the other features in the target picture and the proper magnification of the target pictureWhere j represents the number of the remaining features, j=1, 2,..m.
C2, extracting the maximum value from the definition evaluation indexes corresponding to the other features in the target picture, and marking the maximum value as
C3, comparing the definition evaluation index corresponding to each other feature in the target picture with the definition evaluation index of the set reference, if the definition evaluation index corresponding to the other feature in the target picture is smaller than the definition evaluation index of the set reference, marking the feature as a definition abnormal feature, counting the number of definition abnormal features in the target picture, and marking as
And C4, calculating a feature definition evaluation index delta corresponding to the target picture,Wherein,And K 3 respectively represent a definition evaluation index and a definition abnormal feature number ratio of the set reference, a 3 and a 4 respectively represent a definition evaluation index and a definition abnormal feature number ratio corresponding feature definition evaluation duty weight, e represents a natural constant, and m represents a feature number.
Specifically, the calculating the sharpness evaluation index corresponding to each of the other features in the target picture includes the following specific calculating process: d1, respectively marking the outline area corresponding to the other various features in the target picture and the proper magnification of the target picture as S j and
D2, extracting proper magnification corresponding to the unit contour area from the cloud database and marking as
D3, calculating proper magnification corresponding to other features in the target picture
D4, calculating definition evaluation indexes corresponding to other features in the target picture Wherein,Indicating the appropriate magnification deviation for the set reference.
Specifically, the confirming the final magnification of the picture to be adjusted comprises the following steps: e1, calculating the proper magnification corresponding to the needed magnification feature
And E2, carrying out average value calculation on the rest of the features in the picture to be adjusted and the proper magnification corresponding to the features to be amplified to obtain the average proper magnification corresponding to the picture to be adjusted.
And E3, if the average proper magnification corresponding to the picture to be adjusted is larger than the proper magnification of the picture to be adjusted, increasing the magnification of the picture to be adjusted to the average proper magnification, and if the average proper magnification corresponding to the picture to be adjusted is smaller than the proper magnification of the picture to be adjusted, decreasing the magnification of the picture to be adjusted to the average proper magnification, thereby obtaining the final magnification of the picture to be adjusted.
A second aspect of the present invention provides a geographic information display system, comprising: and the target picture confirming module is used for matching the picture in which the required amplified feature is positioned from a picture library corresponding to the target area map according to the name corresponding to the required amplified feature which is currently input by the target user in the search column of the target area map, and recording the picture as a target picture.
The main feature judgment module is used for extracting the center point position and the outline area of the target picture, positioning the outline center point position and the outline area of the feature to be amplified from the target picture, judging whether the feature to be amplified belongs to the main feature of the target picture, executing the proper magnification confirmation module if the feature to be amplified belongs to the main feature of the target picture, and executing the feature definition analysis module if the feature to be amplified does not belong to the main feature of the target picture.
And the suitable magnification confirming module is used for extracting the historical magnification times of the target picture and the magnification corresponding to each magnification, confirming the suitable magnification of the target picture and taking the suitable magnification as the current magnification of the target picture.
The feature definition analysis module is used for extracting the outline area corresponding to each other feature from the target picture, analyzing the feature definition evaluation index corresponding to the target picture according to the proper magnification of the target picture, indicating that the proper magnification of the target picture needs to be adjusted if the feature definition evaluation index corresponding to the target picture is smaller than a set value, marking the target picture as a picture to be adjusted, and executing the final magnification confirmation module, otherwise, taking the proper magnification of the target picture as the current magnification of the target picture.
And the cloud database is used for storing the feature object name set corresponding to each picture in the picture library corresponding to the target area map and storing the proper magnification corresponding to the unit contour area.
And the final magnification confirming module is used for confirming the final magnification of the picture to be adjusted.
Compared with the prior art, the embodiment of the invention has at least the following advantages or beneficial effects: (1) According to the invention, by combining the historical amplification times of the target picture and the amplification multiplying factors corresponding to each amplification, the appropriate amplification multiplying factor of the target picture is subjected to depth analysis, so that the problem that a user needs to repeatedly adjust when amplifying the picture is avoided to a certain extent, the searching and browsing time of the user is saved, the user experience is improved, and the user can be helped to browse and understand the picture content more efficiently.
(2) According to the invention, the contour area corresponding to each other feature in the target picture is combined, the feature definition evaluation index corresponding to the target picture is analyzed according to the proper magnification of the target picture, the final magnification of the picture to be adjusted is confirmed, the coordination of the overall visual effect of the whole picture is improved, and the loss of other important information in the picture is avoided to a certain extent, so that the deviation of a guiding analyzer is avoided, and the viewing experience effect of a user is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of the method steps of the present invention.
Fig. 2 is a schematic diagram of system configuration connection according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, a first aspect of the present invention provides a geographic information display method, including: s1, confirming a target picture: and matching the picture in which the required amplified feature is positioned from a picture library corresponding to the target area map according to the name corresponding to the required amplified feature which is currently input by the target user in a search column of the target area map, and marking the picture as a target picture.
In a specific embodiment of the present invention, the specific matching manner of the picture corresponding to the target area map and the picture where the feature object to be amplified is located is: and matching and comparing the name corresponding to the feature to be amplified with the feature name set corresponding to each picture in the picture library corresponding to the target area map stored in the cloud database, and taking the picture as the picture in which the feature to be amplified is located if the name corresponding to the feature to be amplified is located in the feature name set corresponding to a certain picture in the picture library corresponding to the target area map.
S2, judging main features: and extracting the center point position and the contour area of the target picture, positioning the contour center point position and the contour area of the required amplified feature object from the target picture, judging whether the required amplified feature object belongs to the main feature object of the target picture, executing the step S3 if the required amplified feature object belongs to the main feature object of the target picture, and executing the step S4 if the required amplified feature object does not belong to the main feature object of the target picture.
The center point position and the contour area of the target picture are extracted from the background management information of the target area map.
It should be further noted that, the specific positioning manner of locating the outline area of the required amplified feature object from the target image is: firstly, preprocessing a target picture, converting the target picture into a gray level picture, then extracting edges to identify the contours of features in the gray level picture, after extracting the edges, using a contour detection algorithm to identify the contours of the features to be amplified, and finally, calculating the contour area of the features to be amplified through a contour area algorithm.
In a specific embodiment of the present invention, the specific determining process for determining whether the required amplified feature is a main feature of the target picture includes: a1, obtaining the distance between the center point of the target picture and the contour center point of the required amplified feature according to the center point position of the target picture and the contour center point position of the required amplified feature, and recording as L.
A2, the outline area of the target picture and the outline area of the required magnifying feature are respectively recorded as S FIG. and S Article (B) .
A3, calculating a main evaluation index beta of the target picture corresponding to the required amplified feature,Where L' and K 1 represent the distance and profile area duty cycle of the set reference, respectively, and a 1 and a 2 represent the distance and profile area duty cycle of the set reference, respectively, corresponding to the importance assessment duty cycle weight.
A4, if the main evaluation index of the target picture corresponding to the required amplified feature is larger than or equal to the main evaluation index of the set reference, indicating that the required amplified feature belongs to the main feature of the target picture, otherwise, indicating that the required amplified feature does not belong to the main feature of the target picture.
S3, confirming a proper magnification: and extracting the historical amplification times of the target picture and the amplification factors corresponding to the amplification times, confirming the proper amplification factor of the target picture, and taking the proper amplification factor as the current amplification factor of the target picture.
The historical amplification times and the amplification rates corresponding to the amplification times of the target picture are extracted from background management information of the target area map.
In a specific embodiment of the present invention, the confirmation target picture has a suitable magnification, and the specific confirmation process is as follows: b1, recording the historical amplification number of the target picture as epsilon.
And B2, comparing the amplification factors corresponding to the historical amplification factors of the target picture with each other, recording the same amplification factors as comprehensive amplification factors, and counting the amplification times corresponding to the comprehensive amplification factors in the target picture as mu i, wherein i represents the number of the comprehensive amplification factors, i=1, 2.
B3, calculating the adaptation degree χ i corresponding to each comprehensive magnification in the target picture,Wherein K 2 represents the amplification number of times of the set reference.
And B4, taking the comprehensive magnification corresponding to the maximum adaptation degree as the proper magnification of the target picture according to the adaptation degree corresponding to each comprehensive magnification in the target picture.
According to the embodiment of the invention, the proper magnification of the target picture is subjected to depth analysis by combining the historical magnification times of the target picture and the magnification corresponding to each magnification, so that the problem that a user needs to repeatedly adjust when amplifying the picture is avoided to a certain extent, the searching and browsing time of the user is saved, the user experience is improved, and the user can be helped to browse and understand the picture content more efficiently.
S4, feature definition analysis: and extracting the outline area corresponding to each other feature from the target picture, analyzing the feature definition evaluation index corresponding to the target picture according to the proper magnification of the target picture, indicating that the proper magnification of the target picture needs to be adjusted if the feature definition evaluation index corresponding to the target picture is smaller than a set value, marking the target picture as a picture to be adjusted, and executing the step S5, otherwise, taking the proper magnification of the target picture as the current magnification of the target picture.
The outline area corresponding to each of the other features is extracted from the target picture in the specific extraction mode: firstly, preprocessing a target picture, converting the target picture into a gray picture, then extracting edges to identify the outline of each other feature in the gray picture, after extracting the edges, using an outline detection algorithm to identify the outline of each other feature, and finally, calculating the outline area of each other feature by an outline area algorithm.
In a specific embodiment of the present invention, the specific analysis process includes: c1, calculating definition evaluation indexes corresponding to other features in the target picture according to the contour area corresponding to the other features in the target picture and the proper magnification of the target pictureWhere j represents the number of the remaining features, j=1, 2,..m.
In a specific embodiment of the present invention, the calculating the sharpness evaluation index corresponding to the other features in the target picture includes: d1, respectively marking the outline area corresponding to the other various features in the target picture and the proper magnification of the target picture as S j and
D2, extracting proper magnification corresponding to the unit contour area from the cloud database and marking as
D3, calculating proper magnification corresponding to other features in the target picture
D4, calculating definition evaluation indexes corresponding to other features in the target picture Wherein,Indicating the appropriate magnification deviation for the set reference.
C2, extracting the maximum value from the definition evaluation indexes corresponding to the other features in the target picture, and marking the maximum value as
C3, comparing the definition evaluation index corresponding to each other feature in the target picture with the definition evaluation index of the set reference, if the definition evaluation index corresponding to the other feature in the target picture is smaller than the definition evaluation index of the set reference, marking the feature as a definition abnormal feature, counting the number of definition abnormal features in the target picture, and marking as
And C4, calculating a feature definition evaluation index delta corresponding to the target picture,Wherein,And K 3 respectively represent a definition evaluation index and a definition abnormal feature number ratio of the set reference, a 3 and a 4 respectively represent a definition evaluation index and a definition abnormal feature number ratio corresponding feature definition evaluation duty weight, e represents a natural constant, and m represents a feature number.
S5, final magnification confirmation: and confirming the final magnification of the picture to be adjusted.
In a specific embodiment of the present invention, the confirming the final magnification of the picture to be adjusted includes: e1, calculating the proper magnification corresponding to the needed magnification feature
And E2, carrying out average value calculation on the rest of the features in the picture to be adjusted and the proper magnification corresponding to the features to be amplified to obtain the average proper magnification corresponding to the picture to be adjusted.
And E3, if the average proper magnification corresponding to the picture to be adjusted is larger than the proper magnification of the picture to be adjusted, increasing the magnification of the picture to be adjusted to the average proper magnification, and if the average proper magnification corresponding to the picture to be adjusted is smaller than the proper magnification of the picture to be adjusted, decreasing the magnification of the picture to be adjusted to the average proper magnification, thereby obtaining the final magnification of the picture to be adjusted.
According to the embodiment of the invention, the contour area corresponding to each other feature in the target picture is combined, the feature definition evaluation index corresponding to the target picture is analyzed according to the proper magnification of the target picture, the final magnification of the picture to be adjusted is confirmed, the coordination of the overall visual effect of the whole picture is improved, and the loss of other important information in the picture is avoided to a certain extent, so that the deviation of a guiding analyzer is avoided, and the watching experience effect of a user is ensured.
Referring to fig. 2, a second aspect of the present invention provides a geographical information display system, including: the device comprises a target picture confirming module, a main feature judging module, a proper magnification confirming module, a feature definition analyzing module, a cloud database and a final magnification confirming module.
The device comprises a main feature judgment module, a suitable amplification factor confirmation module and a feature definition analysis module, wherein the main feature judgment module, the suitable amplification factor confirmation module and the feature definition analysis module are all connected with the target picture confirmation module, the target picture confirmation module and the feature definition analysis module are both connected with the cloud database, the suitable amplification factor confirmation module and the feature definition analysis module are both connected with the main feature judgment module, and the feature definition analysis module is connected with the final amplification factor confirmation module.
The target picture confirming module is used for matching the picture in which the required amplified feature is located from a picture library corresponding to the target area map according to the name corresponding to the required amplified feature which is currently input by the target user in the search column of the target area map, and marking the picture as a target picture.
The main feature judgment module is used for extracting the center point position and the contour area of the target picture, positioning the contour center point position and the contour area of the required amplified feature from the target picture, judging whether the required amplified feature belongs to the main feature of the target picture, executing the proper amplification factor confirmation module if the required amplified feature belongs to the main feature of the target picture, and executing the feature definition analysis module if the required amplified feature does not belong to the main feature of the target picture.
The suitable magnification confirming module is used for extracting the historical magnification times of the target picture and the magnification corresponding to each magnification, confirming the suitable magnification of the target picture and taking the suitable magnification as the current magnification of the target picture.
The feature definition analysis module is configured to extract a contour area corresponding to each of the remaining features from the target picture, analyze a feature definition evaluation index corresponding to the target picture according to an appropriate magnification of the target picture, if the feature definition evaluation index corresponding to the target picture is smaller than a set value, indicate that the appropriate magnification of the target picture needs to be adjusted, record the target picture as a picture to be adjusted, and execute the final magnification confirmation module, otherwise, use the appropriate magnification of the target picture as a current magnification of the target picture.
The cloud database is used for storing a feature object name set corresponding to each picture in the picture library corresponding to the target area map and storing a proper magnification corresponding to the unit contour area.
The final magnification confirming module is used for confirming the final magnification of the picture to be adjusted.
The foregoing is merely illustrative and explanatory of the principles of this invention, as various modifications and additions may be made to the specific embodiments described, or similar arrangements may be substituted by those skilled in the art, without departing from the principles of this invention or beyond the scope of this invention as defined in the claims.
Claims (7)
1. A geographical information display method, comprising:
S1, confirming a target picture: matching a picture in which the required amplified feature is located from a picture library corresponding to the target area map according to the name corresponding to the required amplified feature which is currently input by the target user in a search column of the target area map, and marking the picture as a target picture;
S2, judging main features: extracting the position of the central point and the contour area of the target picture, positioning the position of the contour central point and the contour area of the required amplified feature from the target picture, judging whether the required amplified feature belongs to the main feature of the target picture, executing the step S3 if the required amplified feature belongs to the main feature of the target picture, and executing the step S4 if the required amplified feature does not belong to the main feature of the target picture;
s3, confirming a proper magnification: extracting historical amplification times of the target picture and amplification factors corresponding to each amplification, confirming proper amplification factors of the target picture, and taking the proper amplification factors as current amplification factors of the target picture;
S4, feature definition analysis: extracting outline areas corresponding to other features from the target picture, analyzing feature definition evaluation indexes corresponding to the target picture according to the proper magnification of the target picture, indicating that the proper magnification of the target picture needs to be adjusted if the feature definition evaluation indexes corresponding to the target picture are smaller than a set value, marking the target picture as a picture to be adjusted, and executing the step S5, otherwise, taking the proper magnification of the target picture as the current magnification of the target picture;
s5, final magnification confirmation: confirming the final magnification of the picture to be adjusted;
the characteristic object definition evaluation index corresponding to the analysis target picture comprises the following specific analysis processes:
C1, calculating definition evaluation indexes corresponding to other features in the target picture according to the contour area corresponding to the other features in the target picture and the proper magnification of the target picture Wherein, the method comprises the steps of, wherein,The numbers of the other various features are indicated,；
C2, extracting the maximum value from the definition evaluation indexes corresponding to the other features in the target picture, and marking the maximum value as；
C3, comparing the definition evaluation index corresponding to each other feature in the target picture with the definition evaluation index of the set reference, if the definition evaluation index corresponding to the other feature in the target picture is smaller than the definition evaluation index of the set reference, marking the feature as a definition abnormal feature, counting the number of definition abnormal features in the target picture, and marking as；
C4, calculating a feature definition evaluation index corresponding to the target picture，Wherein, the method comprises the steps of, wherein,AndRespectively represents the definition evaluation index and the definition abnormal feature number ratio of the set reference,AndRespectively representing the set definition evaluation index and the definition abnormal feature number proportion corresponding feature definition evaluation proportion weight,Represents a natural constant of the natural product,Representing the number of features.
2. A geographical information displaying method according to claim 1, wherein: the specific matching mode from the picture library corresponding to the target area map to the picture of the feature object to be amplified is as follows: and matching and comparing the name corresponding to the feature to be amplified with the feature name set corresponding to each picture in the picture library corresponding to the target area map stored in the cloud database, and taking the picture as the picture in which the feature to be amplified is located if the name corresponding to the feature to be amplified is located in the feature name set corresponding to a certain picture in the picture library corresponding to the target area map.
3. A geographical information displaying method according to claim 1, wherein: the specific judging process is as follows:
A1, obtaining the distance between the center point of the target picture and the contour center point of the required amplified feature according to the center point position of the target picture and the contour center point position of the required amplified feature, and recording as ；
A2, respectively marking the contour area of the target picture and the contour area of the required amplified feature asAnd；
A3, calculating a main evaluation index of the target picture corresponding to the required amplified feature，Wherein, the method comprises the steps of, wherein,AndThe distance and the profile area ratio of the set reference are respectively shown,AndRespectively representing the set distance and the main evaluation duty ratio weight corresponding to the outline area duty ratio;
a4, if the main evaluation index of the target picture corresponding to the required amplified feature is larger than or equal to the main evaluation index of the set reference, indicating that the required amplified feature belongs to the main feature of the target picture, otherwise, indicating that the required amplified feature does not belong to the main feature of the target picture.
4. A geographical information displaying method according to claim 1, wherein: the proper magnification of the confirmation target picture is determined by the following steps:
B1, recording the historical amplifying number of the target picture as ；
B2, comparing the amplification factors corresponding to the historical amplification factors of the target picture with each other, recording the same amplification factors as comprehensive amplification factors, counting the amplification times corresponding to the comprehensive amplification factors in the target picture, and recording asWherein, the method comprises the steps of, wherein,A number indicating the integrated magnification ratio,；
B3, calculating the adaptation degree corresponding to each comprehensive magnification in the target picture，Wherein, the method comprises the steps of, wherein,Indicating the amplification frequency ratio of the set reference;
And B4, taking the comprehensive magnification corresponding to the maximum adaptation degree as the proper magnification of the target picture according to the adaptation degree corresponding to each comprehensive magnification in the target picture.
5. A geographical information displaying method according to claim 3, wherein: the definition evaluation index corresponding to the other features in the target picture is calculated, and the specific calculation process is as follows:
D1, respectively marking the outline area corresponding to the other various features in the target picture and the proper magnification of the target picture as And；
D2, extracting proper magnification corresponding to the unit contour area from the cloud database and marking as；
D3, calculating proper magnification corresponding to other features in the target picture，；
D4, calculating definition evaluation indexes corresponding to other features in the target picture，Wherein, the method comprises the steps of, wherein,Indicating the appropriate magnification deviation for the set reference.
6. The geographical information display method of claim 5, wherein: the final magnification of the picture to be adjusted is confirmed, and the specific confirmation process is as follows:
E1, calculating the proper magnification corresponding to the needed magnification feature ，；
E2, carrying out average value calculation on the other characteristics in the picture to be adjusted and the proper magnification corresponding to the characteristics to be amplified to obtain the average proper magnification corresponding to the picture to be adjusted;
and E3, if the average proper magnification corresponding to the picture to be adjusted is larger than the proper magnification of the picture to be adjusted, increasing the magnification of the picture to be adjusted to the average proper magnification, and if the average proper magnification corresponding to the picture to be adjusted is smaller than the proper magnification of the picture to be adjusted, decreasing the magnification of the picture to be adjusted to the average proper magnification, thereby obtaining the final magnification of the picture to be adjusted.
7. A geographical information display system, comprising:
The target picture confirming module is used for matching a picture in which the required amplified feature is located from a picture library corresponding to the target area map according to the name corresponding to the required amplified feature which is currently input by a target user in a search column of the target area map, and recording the picture as a target picture;
The main feature judgment module is used for extracting the center point position and the contour area of the target picture, positioning the contour center point position and the contour area of the feature to be amplified from the target picture, judging whether the feature to be amplified belongs to the main feature of the target picture, executing the proper magnification confirmation module if the feature to be amplified belongs to the main feature of the target picture, and executing the feature definition analysis module if the feature to be amplified does not belong to the main feature of the target picture;
The suitable magnification confirming module is used for extracting the historical magnification times of the target picture and the magnification corresponding to each magnification, confirming the suitable magnification of the target picture and taking the suitable magnification as the current magnification of the target picture;
The feature definition analysis module is used for extracting the outline area corresponding to each other feature from the target picture, analyzing the feature definition evaluation index corresponding to the target picture according to the proper magnification of the target picture, indicating that the proper magnification of the target picture needs to be adjusted if the feature definition evaluation index corresponding to the target picture is smaller than a set value, marking the target picture as a picture to be adjusted, and executing the final magnification confirmation module, otherwise, taking the proper magnification of the target picture as the current magnification of the target picture;
the characteristic object definition evaluation index corresponding to the analysis target picture comprises the following specific analysis processes:
C1, calculating definition evaluation indexes corresponding to other features in the target picture according to the contour area corresponding to the other features in the target picture and the proper magnification of the target picture Wherein, the method comprises the steps of, wherein,The numbers of the other various features are indicated,；
C2, extracting the maximum value from the definition evaluation indexes corresponding to the other features in the target picture, and marking the maximum value as；
C3, comparing the definition evaluation index corresponding to each other feature in the target picture with the definition evaluation index of the set reference, if the definition evaluation index corresponding to the other feature in the target picture is smaller than the definition evaluation index of the set reference, marking the feature as a definition abnormal feature, counting the number of definition abnormal features in the target picture, and marking as；
C4, calculating a feature definition evaluation index corresponding to the target picture，Wherein, the method comprises the steps of, wherein,AndRespectively represents the definition evaluation index and the definition abnormal feature number ratio of the set reference,AndRespectively representing the set definition evaluation index and the definition abnormal feature number proportion corresponding feature definition evaluation proportion weight,Represents a natural constant of the natural product,Representing the number of features;
The cloud database is used for storing a feature object name set corresponding to each picture in the picture library corresponding to the target area map and storing a proper magnification corresponding to the unit contour area;
and the final magnification confirming module is used for confirming the final magnification of the picture to be adjusted.
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| CN117479004A (en) * | 2023-11-22 | 2024-01-30 | 安徽淘云科技股份有限公司 | Shooting preview method, shooting preview device, shooting preview equipment and storage medium |
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