CN109523467A - A kind of image splicing method and device - Google Patents

A kind of image splicing method and device Download PDF

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Publication number
CN109523467A
CN109523467A CN201811358613.7A CN201811358613A CN109523467A CN 109523467 A CN109523467 A CN 109523467A CN 201811358613 A CN201811358613 A CN 201811358613A CN 109523467 A CN109523467 A CN 109523467A
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pixel
buffer area
coordinate range
boundary line
scape
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CN109523467B (en
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闫建忠
王宇翔
王峰
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Beijing Aerospace Hongtu Information Technology Ltd By Share Ltd
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Beijing Aerospace Hongtu Information Technology Ltd By Share Ltd
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00Geometric image transformations in the plane of the image
    • G06T3/40Scaling of whole images or parts thereof, e.g. expanding or contracting
    • G06T3/4038Image mosaicing, e.g. composing plane images from plane sub-images
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00Indexing scheme for image analysis or image enhancement
    • G06T2207/10Image acquisition modality
    • G06T2207/10032Satellite or aerial image; Remote sensing

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  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
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Abstract

This application provides a kind of image splicing method and devices, wherein this method is by obtaining the first scape image and the second scape image in target area;According to the latitude and longitude coordinates of object in the first scape image, the latitude and longitude coordinates of the first scape image pixel point are determined, and according to the latitude and longitude coordinates of object in the second scape image, determine the latitude and longitude coordinates of the second scape image pixel point;According to the latitude and longitude coordinates of the first scape image pixel point and the latitude and longitude coordinates of the second scape image pixel point, the coordinate range of overlapping region is determined;According to the coordinate range of overlapping region, the coordinate range of buffer area is determined;According to the pixel value of the pixel value of the first scape image pixel point and the second scape imaging point, the image in the coordinate range of buffer area is determined.The application determines the image in the coordinate range of buffer area according to the first scape image and the second scape image, and the image flatness in the coordinate range of buffer area can be made higher, the correct interpretation convenient for Observation personnel to buffer area feature.

Description

A kind of image splicing method and device
Technical field
This application involves remote sensing image technical fields, in particular to a kind of image splicing method and device.
Background technique
With the implementation and development of a series of geographical information platforms such as digital city, Major Figures and digital earth, satellite The remote sensing image synthesized by remote sensing technology, with the abundant information amount and intuitive expression contained by it, so that remote sensing technology is more next More by most attention.Wherein, remote sensing image can be applied not only to land resources survey and be built in violation of rules and regulations with determining whether, also Geological resource investigation be can be applied to determine type and the position of wetland, marine resources investigation, city ring can also be applied to The various investigation fields such as border investigation.
The remotely-sensed data of traditional polar-orbiting satellite was saved with the segmentation that is limited in five minutes, and each segment data is referred to as a scape Image.It needs to splice more scape images when observation area is more than a scape image, generally conventional splicing means can be overlapped Area generates a splicing line, and the remote sensing image that will use the corresponding period respectively along splicing line two sides is shown.But this side The spliced image of formula can make splicing line region extremely uncoordinated, influence correct interpretation of the Observation personnel to splicing line provincial characteristics.
Summary of the invention
In view of this, the embodiment of the present application is designed to provide a kind of image splicing method and device, can make to buffer Image flatness in the coordinate range in region is higher, the correct interpretation convenient for Observation personnel to buffer area feature.
In a first aspect, the embodiment of the present application provides a kind of image splicing method, wherein include:
Obtain the first scape image and the second scape image in target area;
According to the latitude and longitude coordinates of object in the first scape image, the longitude and latitude of the first scape image pixel point is determined Coordinate, and according to the latitude and longitude coordinates of object in the second scape image, determine the longitude and latitude of the second scape image pixel point Spend coordinate;
According to the latitude and longitude coordinates of the first scape image pixel point and the longitude and latitude of the second scape image pixel point Coordinate determines the coordinate range of the overlapping region of the first scape image and the second scape image;
According to the coordinate range of the overlapping region, the coordinate range of buffer area is determined;
According to the pixel value of the pixel value of the first scape image pixel point and the second scape imaging point, determine described slow The pixel value for rushing area pixel point obtains the image of the buffer area.
With reference to first aspect, the embodiment of the present application provides the first possible embodiment of first aspect, wherein institute The coordinate range according to the overlapping region is stated, determines that the coordinate range of buffer area includes:
The coordinate range of splicing line is determined according to the coordinate range of the overlapping region;Wherein, splicing line is the overlapping The medium line of North and South direction in region;
According to the coordinate range of the overlapping region and the coordinate range of the splicing line, the buffer area is determined Coordinate range.
The possible embodiment of with reference to first aspect the first, the embodiment of the present application provide second of first aspect Possible embodiment, wherein it is described according to the coordinate range of the overlapping region and the coordinate range of the splicing line, really The coordinate range of the buffer area includes: calmly
Judge the splicing line to overlapping region east side boundary line or overlapping region west side boundary line practical vertical range;
If the practical vertical range be less than or equal to the first preset threshold, using overlapping region east side boundary line as Buffer area east side boundary line, using overlapping region west side boundary line as buffer area west side boundary line;
According to the coordinate range of buffer area east side boundary line and the coordinate of buffer area west side boundary line Range determines the coordinate range of the buffer area.
The possible embodiment of second with reference to first aspect, the embodiment of the present application provide the third of first aspect Possible embodiment, wherein judging the splicing line to overlapping region east side boundary line or overlapping region west After the practical vertical range in side boundary line, comprising:
It is institute by splicing line east side vertical range if the practical vertical range is greater than or equal to the second preset threshold The boundary line at the first preset threshold is stated, as buffer area east side boundary line, and, it is by splicing line west side vertical range Boundary line at first preset threshold, as buffer area west side boundary line;
According to the coordinate range of buffer area east side boundary line and the coordinate of buffer area west side boundary line Range determines the coordinate range of the buffer area.
The possible embodiment of second with reference to first aspect, the embodiment of the present application provide the 4th kind of first aspect Possible embodiment, wherein judging the splicing line to overlapping region east side boundary line or overlapping region west After the practical vertical range in side boundary line, comprising:
If the practical vertical range is greater than first preset threshold and less than the second preset threshold, by the splicing line East side vertical range is the boundary line at the preset ratio value of the practical vertical range, as buffer area east side boundary line, It is the boundary line at the preset ratio value of the practical vertical range by splicing line west side vertical range, as buffer area West side boundary line;Wherein, first preset threshold is less than the second preset threshold;
According to the coordinate range of buffer area east side boundary line and the coordinate of buffer area west side boundary line Range determines the coordinate range of the buffer area.
With reference to first aspect, the embodiment of the present application provides the 5th kind of possible embodiment of first aspect, wherein institute The pixel value for stating the pixel value and the second scape imaging point according to the first scape image pixel point, determines the buffer area The pixel value of pixel obtains the image of the buffer area, comprising:
The longitude and latitude of latitude and longitude coordinates or the second scape image pixel point based on the first scape image pixel point is sat Mark, determines the latitude and longitude coordinates of buffer area pixel;
According to the latitude and longitude coordinates of the buffer area pixel, determine the first scape image pixel point pixel value and The corresponding weighted value of pixel value of the second scape imaging point;
According to the pixel value of the first scape image pixel point, the pixel value of the second scape imaging point and the weight Value, determines the pixel value of the buffer area pixel, obtains the image of the buffer area.
The 5th kind of possible embodiment with reference to first aspect, the embodiment of the present application provide the 6th kind of first aspect Possible embodiment, wherein the latitude and longitude coordinates according to the buffer area pixel determine the first scape image The corresponding weighted value of pixel value of the pixel value of pixel and the second scape imaging point, comprising:
Under Same Latitude, according to the longitude coordinate of pixel to be filled, the splicing line coordinate range in pixel Pixel longitude coordinate in longitude coordinate and the coordinate range of buffer area east side boundary line, determines the first scape image Corresponding second weighted value of pixel value of corresponding first weighted value of the pixel value of pixel and the second scape imaging point;Its In, the pixel to be filled is any pixel point in the buffer area;
Under Same Latitude, according to the longitude coordinate of the pixel to be filled, the splicing line coordinate range in picture Pixel longitude coordinate in vegetarian refreshments longitude coordinate and the coordinate range of buffer area west side boundary line, determines first scape Corresponding 4th weighted value of pixel value of the corresponding third weighted value of the pixel value of image pixel point and the second scape imaging point.
The 6th kind of possible embodiment with reference to first aspect, the embodiment of the present application provide the 7th kind of first aspect Possible embodiment, wherein the picture of the pixel value according to the first scape image pixel point, the second scape imaging point Element value and the weighted value, determine the pixel value of the buffer area pixel, obtain the image of the buffer area, wrap It includes:
According to first weighted value, second weighted value, buffer area east side boundary line coordinate range in The pixel value of pixel, buffer area west side boundary line coordinate range in pixel pixel value, determine the splicing The pixel value of the buffer area pixel in line east side;Wherein, picture in the coordinate range of buffer area east side boundary line The pixel value of vegetarian refreshments is corresponding pixel value in the coordinate range of buffer area east side boundary line described in the first scape image, The pixel value of pixel is buffer area described in the second scape image in the coordinate range of buffer area west side boundary line Corresponding pixel value in the coordinate range of domain west side boundary line;
According to the pixel of the third weighted value, the 4th weighted value, buffer area east side boundary line pixel The pixel value of value, buffer area west side boundary line pixel, determines the buffer area pixel in the splicing line west side The pixel value of point;
According to first weighted value, second weighted value, buffer area east side boundary line coordinate range in The pixel value of pixel, buffer area west side boundary line coordinate range in pixel pixel value, or, according to described Three weighted values, the 4th weighted value, buffer area east side boundary line coordinate range in pixel pixel value, described The pixel value of pixel, determines pixel in the coordinate range of the splicing line in the coordinate range of buffer area west side boundary line Pixel value;
By the pixel value of pixel, splicing line west in the coordinate range of the buffer area in the splicing line east side Pixel in the pixel value of pixel and the coordinate range of the splicing line in the coordinate range of the buffer area of side Pixel value combines, and obtains the image of the buffer area.
Second aspect, the embodiment of the present application provide a kind of image joint device, wherein include:
Module is obtained, for obtaining the first scape image and the second scape image in target area;
Pixel coordinate determining module, for the latitude and longitude coordinates according to object in the first scape image, determine described in The latitude and longitude coordinates of first scape image pixel point, and according to the latitude and longitude coordinates of object in the second scape image, determine institute State the latitude and longitude coordinates of the second scape image pixel point;
The coordinate range determining module of overlapping region, for according to the latitude and longitude coordinates of the first scape image pixel point with And the latitude and longitude coordinates of the second scape image pixel point, determine the overlay region of the first scape image and the second scape image The coordinate range in domain;
The coordinate range determining module of buffer area determines buffer area for the coordinate range according to the overlapping region The coordinate range in domain;
Splicing module, for according to the pixel value of the first scape image pixel point and the pixel of the second scape imaging point Value, determines the pixel value of the buffer area pixel, obtains the image in the coordinate range of the buffer area.
In conjunction with second aspect, the embodiment of the present application provides the first possible embodiment of second aspect, wherein institute The coordinate range determining module for stating buffer area, is specifically used for:
The coordinate range of splicing line is determined according to the coordinate range of the overlapping region;Wherein, splicing line is the overlapping The medium line of North and South direction in region;
According to the coordinate range of the overlapping region and the coordinate range of the splicing line, the buffer area is determined Coordinate range.
A kind of image splicing method and device provided by the embodiments of the present application, wherein this method is by obtaining target area Interior the first scape image and the second scape image;According to the latitude and longitude coordinates of object in the first scape image, the first scape image picture is determined The latitude and longitude coordinates of vegetarian refreshments, and according to the latitude and longitude coordinates of object in the second scape image, determine the second scape image pixel point Latitude and longitude coordinates;According to the latitude and longitude coordinates of the first scape image pixel point and the latitude and longitude coordinates of the second scape image pixel point, Determine the coordinate range of the overlapping region of the first scape image and the second scape image;According to the coordinate range of overlapping region, determine slow Rush the coordinate range in region;According to the pixel value of the pixel value of the first scape image pixel point and the second scape imaging point, buffering is determined The pixel value of area pixel point, obtains the image in the coordinate range of buffer area.The embodiment of the present application is according to the first scape image The image in the coordinate range of buffer area is determined with the second scape image, and the image in the coordinate range of buffer area can be made flat Slip is higher, the correct interpretation convenient for Observation personnel to buffer area feature.The method of the embodiment of the present application avoids existing skill A splicing line is generated in overlay region in art, is shown, is led using the remote sensing image of corresponding period respectively along splicing line two sides Cause splicing line region uncoordinated, Observation personnel is to the incorrect problem of splicing line provincial characteristics interpretation.
To enable the above objects, features, and advantages of the application to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate Appended attached drawing, is described in detail below.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this A little attached drawings obtain other relevant attached drawings.
Fig. 1 shows a kind of flow chart of image splicing method provided by the embodiment of the present application;
Fig. 2 shows the flow charts of another kind image splicing method provided by the embodiment of the present application;
Fig. 3 shows the flow chart of another kind image splicing method provided by the embodiment of the present application;
Fig. 4 shows a kind of structural schematic diagram of image joint device provided by the embodiment of the present application;
Fig. 5 shows the structural schematic diagram of server provided by the embodiment of the present application.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application Middle attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only It is some embodiments of the present application, instead of all the embodiments.The application being usually described and illustrated herein in the accompanying drawings is real The component for applying example can be arranged and be designed with a variety of different configurations.Therefore, below to the application's provided in the accompanying drawings The detailed description of embodiment is not intended to limit claimed scope of the present application, but is merely representative of the selected reality of the application Apply example.Based on embodiments herein, those skilled in the art institute obtained without making creative work There are other embodiments, shall fall in the protection scope of this application.
Currently, in the prior art when splicing remote sensing image a splicing line can be generated in overlapping region, along splicing line two Side shown using the remote sensing image of corresponding period respectively, will lead to that splicing line region is uncoordinated, and Observation personnel is to spelling in this way Wire area feature interpretation is incorrect.In view of the above-mentioned problems, a kind of image splicing method provided by the embodiments of the present application and device, The image flatness in the coordinate range of buffer area can be made higher, convenient for Observation personnel correctly sentencing to buffer area feature It reads.
For convenient for understanding the embodiment of the present application, first to a kind of image joint side disclosed in the embodiment of the present application Method describes in detail.
As shown in Figure 1, being the flow chart of image splicing method provided by the embodiments of the present application, the specific steps are as follows:
The first scape image and the second scape image in S101, acquisition target area.
Here, target area is the arbitrary region of the collected earth surface of satellite.
Since the data segmentation of satellite acquisition is saved, the image of every segment data synthesis is also segmentation. If target area range is larger, need to splice multiple images corresponding in target area, it is corresponding to obtain target area Image.
Wherein it is possible to choose the first scape image and the second scape shadow according to more scape images in time segment search target area Picture, wherein there are overlapping regions for the first scape image and the second scape image.
S102, according to the latitude and longitude coordinates of object in the first scape image, determine that the longitude and latitude of the first scape image pixel point is sat Mark, and according to the latitude and longitude coordinates of object in the second scape image, determine the latitude and longitude coordinates of the second scape image pixel point.
Here, the latitude and longitude coordinates of object can be pre- in the latitude and longitude coordinates of object and the second scape image in the first scape image It is first stored in the memory of satellite, can also be what global position system obtained in real time.
Specifically, the corresponding first scape shadow of the latitude and longitude coordinates for searching object in the first scape image in longitude and latitude look-up table As the latitude and longitude coordinates of pixel, the latitude and longitude coordinates corresponding of object in the second scape image are searched in longitude and latitude look-up table The latitude and longitude coordinates of 2 scape image pixel points.
Wherein, longitude and latitude look-up table includes that the longitude and latitude of the corresponding image pixel point of latitude and longitude coordinates of object in image is sat Mark mapping relations.
S103, it is sat according to the latitude and longitude coordinates of the first scape image pixel point and the longitude and latitude of the second scape image pixel point Mark, determines the coordinate range of the overlapping region of the first scape image and the second scape image.
Here, in the longitude and latitude of the latitude and longitude coordinates and the second scape image pixel point that have determined that the first scape image pixel point It spends on the basis of coordinate, the warp of pixel in overlapping region can be determined according to the latitude and longitude coordinates of the first scape image pixel point Latitude coordinate, so that it is determined that the coordinate range of overlapping region.
Wherein, overlapping region had not only been present in the first scape image, but also was present in the second scape image, can also be according to second The latitude and longitude coordinates of scape image pixel point determine the latitude and longitude coordinates of pixel in overlapping region, determine overlapping region with this Coordinate range.
S104, the coordinate range according to overlapping region, determine the coordinate range of buffer area.
Here, according to the size of overlapping region, it can determine that buffer area is entire overlapping region or overlapping region A part.
Wherein, the coordinate range of overlapping region is it has been determined that be entire overlapping region or overlapping region in buffer area When a part, the coordinate range of buffer area can be determined.
S105, according to the pixel value of the first scape image pixel point and the pixel value of the second scape imaging point, determine buffer area The pixel value of pixel obtains the image of buffer area.
Here it is possible to according to certain weighted value, by the pixel value of the first scape image pixel point and the second scape imaging point Pixel value is calculated, to determine the pixel value of buffer area pixel.
The coordinate of buffer area has been arrived while the pixel value of pixel in the coordinate range for determining buffer area Image in range.
The embodiment of the present application determines the image in the coordinate range of buffer area according to the first scape image and the second scape image, The image flatness in the coordinate range of buffer area can be made higher, convenient for Observation personnel correctly sentencing to buffer area feature It reads.
Specifically, in the coordinate range according to overlapping region, it, can be according to such as figure when determining the coordinate range of buffer area Method shown in 2 is determined, the specific steps are as follows:
S201, the coordinate range that splicing line is determined according to the coordinate range of overlapping region;Wherein, splicing line is overlapping region The medium line of interior North and South direction;
S202, judge splicing line to the reality of overlapping region east side boundary line or overlapping region west side boundary line vertically away from From;
If S203, practical vertical range are less than or equal to the first preset threshold, using overlapping region east side boundary line as slow Region east side boundary line is rushed, using overlapping region west side boundary line as buffer area west side boundary line;
It is first by splicing line east side vertical range if S204, practical vertical range are greater than or equal to the second preset threshold Boundary line at preset threshold, as buffer area east side boundary line, and, it is the first default threshold by splicing line west side vertical range Boundary line at value, as buffer area west side boundary line;
If S205, practical vertical range are greater than the first preset threshold and less than the second preset thresholds, splicing line east side is hung down Straight distance is the boundary line at the preset ratio value of practical vertical range, as buffer area east side boundary line, by splicing line west Side vertical range is the boundary line at the preset ratio value of practical vertical range, as buffer area west side boundary line;Wherein, One preset threshold is less than the second preset threshold;
S206, according to the coordinate range of buffer area east side boundary line and the coordinate model of buffer area west side boundary line It encloses, determines the coordinate range of buffer area.
Here, since the direction of motion of satellite is North and South direction, two adjacent scape images will not be deposited in North and South direction In overlapping region, there are overlapping regions for the two adjacent scape images of east-west direction.
Wherein, splicing line is the medium line that overlapping region is equally divided into the North and South direction of east and west sides.Due to splicing line Belong to overlapping region, therefore can determine the coordinate range of splicing line in the coordinate range of overlapping region.
After determining the coordinate range of splicing line, splicing line is calculated to overlapping region east side boundary line or overlapping region west The practical vertical range in side boundary line, wherein the practical vertical range is pixel distance.Specifically, determining the seat of buffer area Three kinds of situations can be divided into when marking range, as follows:
The first situation: practical vertical range is less than or equal to the first preset threshold.
Using overlapping region east side boundary line as buffer area east side boundary line, using overlapping region west side boundary line as slow Region west side boundary line is rushed, that is, using overlapping region as buffer area.
Coordinate range and the buffer area of buffer area east side boundary line can be determined based on the coordinate range of overlapping region The coordinate range of west side boundary line, and then determine the coordinate range of buffer area.
Second situation: practical vertical range is greater than or equal to the second preset threshold.
By the boundary line that splicing line east side vertical range is at the first preset threshold, as buffer area east side boundary line, By the boundary line that splicing line west side vertical range is at the first preset threshold, as buffer area west side boundary line, at this point, buffering Region is a part of overlapping region.
Ibid, the coordinate range based on overlapping region can determine the coordinate range and buffering of buffer area east side boundary line The coordinate range of region west side boundary line, and then determine the coordinate range of buffer area.
The third situation: practical vertical range is greater than the first preset threshold and less than the second preset threshold.
Here, the first preset threshold is less than the second preset threshold.
It is the boundary line at the preset ratio value of practical vertical range by splicing line east side vertical range, as buffer area Splicing line west side vertical range is the boundary line at the preset ratio value of practical vertical range, as buffering by east side boundary line Region west side boundary line.
Coordinate range and the buffer area of buffer area east side boundary line can be determined based on the coordinate range of overlapping region The coordinate range of west side boundary line, and then determine the coordinate range of buffer area.
After determining the coordinate range of buffer area, as shown in figure 3, according to the pixel of the first scape image pixel point The pixel value of value and the second scape imaging point, determines the pixel value of the buffer area pixel, obtains the buffer area Image, the specific steps are as follows:
The latitude and longitude coordinates of S301, the latitude and longitude coordinates based on the first scape image pixel point or the second scape image pixel point, Determine the latitude and longitude coordinates of buffer area pixel;
S302, under Same Latitude, according to the longitude coordinate of pixel to be filled, splicing line coordinate range in pixel Pixel longitude coordinate in longitude coordinate and the coordinate range of buffer area east side boundary line, determines the first scape image pixel point Corresponding second weighted value of pixel value of corresponding first weighted value of pixel value and the second scape imaging point;Wherein, pixel to be filled Point is any pixel point in buffer area;
S303, under Same Latitude, according to the longitude coordinate of pixel to be filled, splicing line coordinate range in pixel Pixel longitude coordinate in longitude coordinate and the coordinate range of buffer area west side boundary line, determines the first scape image pixel point Corresponding 4th weighted value of pixel value of the corresponding third weighted value of pixel value and the second scape imaging point;
S304, according to the first weighted value, the second weighted value, buffer area east side boundary line coordinate range in pixel Pixel value, buffer area west side boundary line coordinate range in pixel pixel value, determine the buffer area in splicing line east side The pixel value of pixel;
S305, according to third weighted value, the 4th weighted value, buffer area east side boundary line coordinate range in pixel Pixel value, buffer area west side boundary line coordinate range in pixel pixel value, determine the buffer area in splicing line west side The pixel value of pixel;
S306, according to the first weighted value, the second weighted value, buffer area east side boundary line coordinate range in pixel Pixel value, buffer area west side boundary line coordinate range in pixel pixel value, or, according to third weighted value, the 4th power Weight values, buffer area east side boundary line coordinate range in the pixel value of pixel, buffer area west side boundary line coordinate model The pixel value for enclosing interior pixel determines the pixel value of pixel in the coordinate range of splicing line;
S307, by the pixel value of the buffer area pixel in splicing line east side, the buffer area pixel in splicing line west side Pixel value and splicing line coordinate range in pixel pixel value combine, obtain the image of buffer area.
Here, since buffer area had not only been present in the first scape image, but also it is present in the second scape image, therefore both can basis The latitude and longitude coordinates of first scape image pixel point determine the latitude and longitude coordinates of buffer area pixel, and can be according to the second scape shadow As the latitude and longitude coordinates of pixel determine the latitude and longitude coordinates of buffer area pixel.
Wherein, in order to improve buffer area image flatness, the embodiment of the present application is according to the warp of pixel to be filled Spend coordinate, splicing line pixel longitude coordinate and buffer area east side boundary line pixel longitude coordinate, it is determined that the first scape shadow As the corresponding weighted value of pixel value of the corresponding weighted value of the pixel value of pixel and the second scape imaging point.Also, it is spelled calculating When the pixel value of the buffer area pixel of the pixel value and splicing line west side of the buffer area pixel in wiring east side, weighted value It is different.
Specifically, under Same Latitude, when calculating the pixel value of the buffer area pixel in splicing line east side, according to formula 1 calculates corresponding first weighted value of pixel value of the first scape image pixel point.
Wherein, W1Indicate the first weighted value;xrIndicate that pixel longitude is sat in the coordinate range of buffer area east side boundary line Mark;X indicates the longitude coordinate of pixel to be filled;xcIt indicates, pixel longitude coordinate in the coordinate range of splicing line.
It is corresponding, when calculating the pixel value of the buffer area pixel in splicing line east side, the second scape shadow is calculated according to formula 2 As corresponding second weighted value of the pixel value of pixel.
W2=1-W1 (2)
Wherein, W2Indicate the second weighted value;W1Indicate the first weighted value.
In addition, under Same Latitude, when calculating the pixel value of the buffer area pixel in splicing line west side, according to formula 3 Calculate the corresponding third weighted value of pixel value of the first scape image pixel point.
Wherein, W3Indicate third weighted value;xlIndicate that pixel longitude is sat in the coordinate range of buffer area west side boundary line Mark;X indicates the longitude coordinate of pixel to be filled;xcIt indicates, pixel longitude coordinate in the coordinate range of splicing line.
It is corresponding, when calculating the pixel value of pixel in the coordinate range of the buffer area in splicing line west side, according to formula 4 Calculate corresponding 4th weighted value of pixel value of the second scape image pixel point.
W4=1-W3 (4)
Wherein, W4Indicate the 4th weighted value;W3Indicate third weighted value.
Further, the pixel value of pixel in the coordinate range of the buffer area in splicing line east side, splicing are calculated separately In the coordinate range of the buffer area in line west side in the pixel value of pixel and the coordinate range of splicing line pixel pixel Value.
Specifically, calculating the pixel value of the buffer area pixel in splicing line east side by formula 5.
P1=PrW1+PlW2 (5)
Wherein, P1Indicate the pixel value of the buffer area pixel in splicing line east side;PrIndicate buffer area east side boundary line Coordinate range in pixel pixel value;PlIndicate the pixel of pixel in the coordinate range of buffer area west side boundary line Value;W1Indicate the first weighted value;W2Indicate the second weighted value.
The pixel value of the buffer area pixel in splicing line west side is calculated by formula 6.
P2=PrW3+PlW4 (6)
Wherein, P2Indicate the pixel value of the buffer area pixel in splicing line west side;PrIndicate buffer area east side boundary line Coordinate range in pixel pixel value;PlIndicate the pixel of pixel in the coordinate range of buffer area west side boundary line Value;W3Indicate third weighted value;W4Indicate the 4th weighted value.
Wherein, the pixel value of pixel is buffer area in the first scape image in the coordinate range of buffer area east side boundary line Corresponding pixel value in the coordinate range of domain east side boundary line, the picture of pixel in the coordinate range of buffer area west side boundary line Element value is corresponding pixel value in the coordinate range of buffer area west side boundary line in the second scape image.
It is worth noting that the pixel value of pixel can be both calculated by formula 5 in the coordinate range of splicing line, It can be calculated again by formula 6.
By the pixel of the pixel value of the buffer area pixel in splicing line east side, the buffer area pixel in splicing line west side The pixel value of pixel combines in the coordinate range of value and splicing line, and then obtains the image of buffer area.
The embodiment of the present application is by above-mentioned joining method, so that the image flatness of buffer area is higher, convenient for observation people Correct interpretation of the member to buffer area feature.
Based on the same inventive concept, the embodiment of the present application three additionally provides image joint dress corresponding with image splicing method It sets, since the principle that the device in the embodiment of the present application solves the problems, such as is similar to the above-mentioned image splicing method of the embodiment of the present application, Therefore the implementation of device may refer to the implementation of method, and overlaps will not be repeated.
Shown in Figure 4, image joint device provided by the another embodiment of the application includes:
Module 401 is obtained, for obtaining the first scape image and the second scape image in target area;
Pixel coordinate determining module 402 determines the first scape for the latitude and longitude coordinates according to object in the first scape image The latitude and longitude coordinates of image pixel point, and according to the latitude and longitude coordinates of object in the second scape image, determine the second scape image picture The latitude and longitude coordinates of vegetarian refreshments;
The coordinate range determining module 403 of overlapping region, for according to the latitude and longitude coordinates of the first scape image pixel point with And second scape image pixel point latitude and longitude coordinates, determine the coordinate model of the overlapping region of the first scape image and the second scape image It encloses;
The coordinate range determining module 404 of buffer area determines buffer area for the coordinate range according to overlapping region Coordinate range;
Splicing module 405, for according to the pixel value of the first scape image pixel point and the pixel value of the second scape imaging point, really The pixel value of buffer set domain pixel, obtains the image in the coordinate range of buffer area.
In one embodiment, the coordinate range determining module 404 of above-mentioned buffer area, is specifically used for:
The coordinate range of splicing line is determined according to the coordinate range of overlapping region;Wherein, splicing line is overlapping region Nei Nan The north to medium line;
According to the coordinate range of overlapping region and the coordinate range of splicing line, the coordinate range of buffer area is determined.
As shown in figure 5, being the structural schematic diagram of server provided by the embodiments of the present application, comprising: processor 501, storage Device 502 and bus 503, the storage of memory 502 execute instruction, and when the vehicle is running, lead between processor 501 and memory 1002 The communication of bus 503 is crossed, following processing is executed when machine readable instructions are executed by processor 501:
Obtain the first scape image and the second scape image in target area;
According to the latitude and longitude coordinates of object in the first scape image, the latitude and longitude coordinates of the first scape image pixel point are determined, with And the latitude and longitude coordinates according to object in the second scape image, determine the latitude and longitude coordinates of the second scape image pixel point;
According to the latitude and longitude coordinates of the first scape image pixel point and the latitude and longitude coordinates of the second scape image pixel point, determine The coordinate range of the overlapping region of first scape image and the second scape image;
According to the coordinate range of overlapping region, the coordinate range of buffer area is determined;
According to the pixel value of the pixel value of the first scape image pixel point and the second scape imaging point, buffer area pixel is determined Pixel value, obtain the image of buffer area.
Optionally, in the method that processor 501 executes, according to the coordinate range of overlapping region, the seat of buffer area is determined Marking range includes:
The coordinate range of splicing line is determined according to the coordinate range of overlapping region;Wherein, splicing line is overlapping region Nei Nan The north to medium line;
According to the coordinate range of overlapping region and the coordinate range of splicing line, the coordinate range of buffer area is determined.
Optionally, in the method that processor 501 executes, according to the coordinate range of overlapping region and the coordinate model of splicing line It encloses, determines that the coordinate range of buffer area includes:
Judge splicing line to overlapping region east side boundary line or overlapping region west side boundary line practical vertical range;
If practical vertical range is less than or equal to the first preset threshold, using overlapping region east side boundary line as buffer area East side boundary line, using overlapping region west side boundary line as buffer area west side boundary line;
According to the coordinate range of buffer area east side boundary line and the coordinate range of buffer area west side boundary line, determine The coordinate range of buffer area.
Optionally, in the method that processor 501 executes, judging splicing line to overlapping region east side boundary line or overlay region After the practical vertical range of domain west side boundary line, comprising:
It is the first default threshold by splicing line east side vertical range if practical vertical range is greater than or equal to the second preset threshold Boundary line at value, as buffer area east side boundary line, and, it is at the first preset threshold by splicing line west side vertical range Boundary line, as buffer area west side boundary line;
According to the coordinate range of buffer area east side boundary line and the coordinate range of buffer area west side boundary line, determine The coordinate range of buffer area.
Optionally, in the method that processor 501 executes, judging splicing line to overlapping region east side boundary line or overlay region After the practical vertical range of domain west side boundary line, comprising:
If practical vertical range is greater than the first preset threshold and less than the second preset threshold, by splicing line east side vertical range It is as buffer area east side boundary line, splicing line west side is vertical for the boundary line at the preset ratio value of practical vertical range Distance is the boundary line at the preset ratio value of practical vertical range, as buffer area west side boundary line;Wherein, first is default Threshold value is less than the second preset threshold;
According to the coordinate range of buffer area east side boundary line and the coordinate range of buffer area west side boundary line, determine The coordinate range of buffer area.
Optionally, in the method that processor 501 executes, according to the pixel value and the second scape image of the first scape image pixel point The pixel value of point, determines the pixel value of buffer area pixel, obtains the image of buffer area, comprising:
The latitude and longitude coordinates of latitude and longitude coordinates or the second scape image pixel point based on the first scape image pixel point determine slow Rush the latitude and longitude coordinates of area pixel point;
According to the latitude and longitude coordinates of buffer area pixel, the pixel value and the second scape shadow of the first scape image pixel point are determined The corresponding weighted value of the pixel value of picture point;
According to the pixel value of the first scape image pixel point, the pixel value and weighted value of the second scape imaging point, buffering is determined The pixel value of area pixel point, obtains the image of buffer area.
Optionally, in the method that processor 501 executes, according to the latitude and longitude coordinates of buffer area pixel, first is determined The pixel value of scape image pixel point and the corresponding weighted value of pixel value of the second scape imaging point, comprising:
Under Same Latitude, according to the longitude coordinate of pixel to be filled, splicing line coordinate range in pixel longitude Pixel longitude coordinate in coordinate and the coordinate range of buffer area east side boundary line, determines the pixel of the first scape image pixel point It is worth corresponding second weighted value of pixel value of corresponding first weighted value and the second scape imaging point;Wherein, pixel to be filled is Any pixel point in buffer area;
Under Same Latitude, according to the longitude coordinate of pixel to be filled, splicing line coordinate range in pixel longitude Vegetarian refreshments longitude coordinate in the coordinate range of coordinate and buffer area west side boundary line picture, determines the pixel of the first scape image pixel point It is worth corresponding 4th weighted value of pixel value of corresponding third weighted value and the second scape imaging point.
Optionally, in the method that processor 501 executes, according to pixel value, the second scape image of the first scape image pixel point The pixel value and weighted value of point, determine the pixel value of buffer area pixel, obtain the image of buffer area, comprising:
According to the first weighted value, the second weighted value, buffer area east side boundary line coordinate range in pixel pixel Value, buffer area west side boundary line coordinate range in pixel pixel value, determine the buffer area pixel in splicing line east side The pixel value of point;Wherein, the pixel value of pixel is to delay in the first scape image in the coordinate range of buffer area east side boundary line Rush corresponding pixel value in the coordinate range of region east side boundary line, pixel in the coordinate range of buffer area west side boundary line Pixel value be the second scape image in buffer area west side boundary line coordinate range in corresponding pixel value;
According to third weighted value, the 4th weighted value, buffer area east side boundary line coordinate range in pixel pixel Value, buffer area west side boundary line coordinate range in pixel pixel value, determine the buffer area pixel in splicing line west side The pixel value of point;
According to the first weighted value, the second weighted value, buffer area east side boundary line coordinate range in pixel pixel Value, buffer area west side boundary line coordinate range in pixel pixel value, or, according to third weighted value, the 4th weighted value, The pixel value of pixel in the coordinate range of buffer area east side boundary line, buffer area west side boundary line coordinate range in picture The pixel value of vegetarian refreshments determines the pixel value of pixel in the coordinate range of splicing line;
By the pixel of the pixel value of the buffer area pixel in splicing line east side, the buffer area pixel in splicing line west side The pixel value of pixel combines in the coordinate range of value and splicing line, obtains the image of buffer area.
The computer program product of image splicing method and device provided by the embodiment of the present application, including store program The computer readable storage medium of code, the instruction that program code includes can be used for executing the method in previous methods embodiment, Specific implementation can be found in embodiment of the method, and details are not described herein.
Specifically, which can be general storage medium, such as mobile disk, hard disk, on the storage medium Computer program when being run, above-mentioned image splicing method is able to carry out, in the coordinate range so as to make buffer area Image flatness it is higher, the correct interpretation convenient for Observation personnel to buffer area feature.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product It is stored in the executable non-volatile computer-readable storage medium of a processor.Based on this understanding, the application Technical solution substantially the part of the part that contributes to existing technology or the technical solution can be with software in other words The form of product embodies, which is stored in a storage medium, including some instructions use so that One computer equipment (can be personal computer, server or the network equipment etc.) executes each embodiment institute of the application State all or part of the steps of method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic or disk etc. is various to deposit Store up the medium of program code.
Finally, it should be noted that embodiment described above, the only specific embodiment of the application, to illustrate the application Technical solution, rather than its limitations, the protection scope of the application is not limited thereto, although with reference to the foregoing embodiments to this Shen It please be described in detail, those skilled in the art should understand that: anyone skilled in the art Within the technical scope of the present application, it can still modify to technical solution documented by previous embodiment or can be light It is readily conceivable that variation or equivalent replacement of some of the technical features;And these modifications, variation or replacement, do not make The essence of corresponding technical solution is detached from the spirit and scope of the embodiment of the present application technical solution, should all cover the protection in the application Within the scope of.Therefore, the protection scope of the application shall be subject to the protection scope of the claim.

Claims (10)

1. a kind of image splicing method characterized by comprising
Obtain the first scape image and the second scape image in target area;
According to the latitude and longitude coordinates of object in the first scape image, determine that the longitude and latitude of the first scape image pixel point is sat Mark, and according to the latitude and longitude coordinates of object in the second scape image, determine the longitude and latitude of the second scape image pixel point Coordinate;
According to the latitude and longitude coordinates of the first scape image pixel point and the latitude and longitude coordinates of the second scape image pixel point, Determine the coordinate range of the overlapping region of the first scape image and the second scape image;
According to the coordinate range of the overlapping region, the coordinate range of buffer area is determined;
According to the pixel value of the pixel value of the first scape image pixel point and the second scape imaging point, the buffer area is determined The pixel value of domain pixel obtains the image of the buffer area.
2. the method according to claim 1, wherein the coordinate range according to the overlapping region, determines The coordinate range of buffer area includes:
The coordinate range of splicing line is determined according to the coordinate range of the overlapping region;Wherein, splicing line is the overlapping region The medium line of interior North and South direction;
According to the coordinate range of the overlapping region and the coordinate range of the splicing line, the coordinate of the buffer area is determined Range.
3. according to the method described in claim 2, it is characterized in that, the coordinate range and institute according to the overlapping region The coordinate range for stating splicing line determines that the coordinate range of the buffer area includes:
Judge the splicing line to overlapping region east side boundary line or overlapping region west side boundary line practical vertical range;
If the practical vertical range is less than or equal to the first preset threshold, using overlapping region east side boundary line as buffering Region east side boundary line, using overlapping region west side boundary line as buffer area west side boundary line;
According to the coordinate range of buffer area east side boundary line and the coordinate range of buffer area west side boundary line, Determine the coordinate range of the buffer area.
4. according to the method described in claim 3, it is characterized in that, judging the splicing line to overlapping region east side side After the practical vertical range of boundary line or overlapping region west side boundary line, comprising:
It is described the by splicing line east side vertical range if the practical vertical range is greater than or equal to the second preset threshold Boundary line at one preset threshold, as buffer area east side boundary line, and, it is described by splicing line west side vertical range Boundary line at first preset threshold, as buffer area west side boundary line;
According to the coordinate range of buffer area east side boundary line and the coordinate range of buffer area west side boundary line, Determine the coordinate range of the buffer area.
5. according to the method described in claim 3, it is characterized in that, judging the splicing line to overlapping region east side side After the practical vertical range of boundary line or overlapping region west side boundary line, comprising:
If the practical vertical range is greater than first preset threshold and less than the second preset threshold, by the splicing line east side Vertical range is the boundary line at the preset ratio value of the practical vertical range, as buffer area east side boundary line, by institute The boundary line at the preset ratio value that splicing line west side vertical range is the practical vertical range is stated, as buffer area west side Boundary line;Wherein, first preset threshold is less than the second preset threshold;
According to the coordinate range of buffer area east side boundary line and the coordinate range of buffer area west side boundary line, Determine the coordinate range of the buffer area.
6. the method according to claim 1, wherein the pixel value according to the first scape image pixel point With the pixel value of the second scape imaging point, determines the pixel value of the buffer area pixel, obtain the buffer area Image, comprising:
The latitude and longitude coordinates of latitude and longitude coordinates or the second scape image pixel point based on the first scape image pixel point, really The latitude and longitude coordinates of pixel in the coordinate range in buffer set domain;
According to the latitude and longitude coordinates of pixel in the coordinate range of the buffer area, the first scape image pixel point is determined The corresponding weighted value of pixel value of pixel value and the second scape imaging point;
According to the pixel value of the first scape image pixel point, the pixel value and the weighted value of the second scape imaging point, The pixel value for determining the buffer area pixel, obtains the image of the buffer area.
7. according to the method described in claim 6, it is characterized in that, pixel in the coordinate range according to the buffer area The pixel value of the latitude and longitude coordinates of point, the pixel value and the second scape imaging point that determine the first scape image pixel point is corresponding Weighted value, comprising:
Under Same Latitude, according to the longitude coordinate of pixel to be filled, the splicing line coordinate range in pixel longitude Pixel longitude coordinate in coordinate and the coordinate range of buffer area east side boundary line, determines the first scape image pixel Corresponding first weighted value of pixel value of point and corresponding second weighted value of pixel value of the second scape imaging point;Wherein, institute Stating pixel to be filled is any pixel point in the buffer area;
Under Same Latitude, according to the longitude coordinate of the pixel to be filled, the splicing line coordinate range in pixel Pixel longitude coordinate in longitude coordinate and the coordinate range of buffer area west side boundary line, determines the first scape image Corresponding 4th weighted value of pixel value of the corresponding third weighted value of the pixel value of pixel and the second scape imaging point.
8. the method according to the description of claim 7 is characterized in that the pixel according to the first scape image pixel point The pixel value and the weighted value of value, the second scape imaging point, determine the pixel value of the buffer area pixel, obtain The image of the buffer area, comprising:
According to first weighted value, second weighted value, buffer area east side boundary line coordinate range in pixel The pixel value of pixel in the pixel value of point, the coordinate range of buffer area west side boundary line determines the splicing line east The pixel value of the buffer area pixel of side;Wherein, pixel in the coordinate range of buffer area east side boundary line Pixel value be the first scape image described in buffer area east side boundary line coordinate range in corresponding pixel value, it is described The pixel value of pixel is the west of buffer area described in the second scape image in the coordinate range of buffer area west side boundary line Corresponding pixel value in the coordinate range in side boundary line;
According to the third weighted value, the 4th weighted value, buffer area east side boundary line coordinate range in pixel The pixel value of pixel in the pixel value of point, the coordinate range of buffer area west side boundary line determines the splicing line west The pixel value of the buffer area pixel of side;
According to first weighted value, second weighted value, buffer area east side boundary line coordinate range in pixel The pixel value of pixel in the pixel value of point, the coordinate range of buffer area west side boundary line, or, being weighed according to the third Weight values, the 4th weighted value, buffer area east side boundary line coordinate range in the pixel value of pixel, the buffering The pixel value of pixel, determines the picture of pixel in the coordinate range of the splicing line in the coordinate range of region west side boundary line Element value;
By the pixel value of the buffer area pixel in the splicing line east side, the buffer area in the splicing line west side The pixel value of pixel combines in the coordinate range of the pixel value of pixel and the splicing line, obtains the buffer area Image.
9. a kind of image joint device characterized by comprising
Module is obtained, for obtaining the first scape image and the second scape image in target area;
Pixel coordinate determining module determines described first for the latitude and longitude coordinates according to object in the first scape image The latitude and longitude coordinates of scape image pixel point, and according to the latitude and longitude coordinates of object in the second scape image, determine described The latitude and longitude coordinates of 2 scape image pixel points;
The coordinate range determining module of overlapping region, for according to the first scape image pixel point latitude and longitude coordinates and institute The latitude and longitude coordinates for stating the second scape image pixel point, determine the overlapping region of the first scape image and the second scape image Coordinate range;
The coordinate range determining module of buffer area determines buffer area for the coordinate range according to the overlapping region Coordinate range;
Splicing module, for according to the pixel value of the first scape image pixel point and the pixel value of the second scape imaging point, The pixel value for determining the buffer area pixel, obtains the image of the buffer area.
10. device according to claim 9, which is characterized in that the coordinate range determining module of the buffer area, specifically For:
The coordinate range of splicing line is determined according to the coordinate range of the overlapping region;Wherein, splicing line is the overlapping region The medium line of interior North and South direction;
According to the coordinate range of the overlapping region and the coordinate range of the splicing line, the coordinate of the buffer area is determined Range.
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