CN110580274A - GIS data rendering method - Google Patents
GIS data rendering method Download PDFInfo
- Publication number
- CN110580274A CN110580274A CN201910864421.1A CN201910864421A CN110580274A CN 110580274 A CN110580274 A CN 110580274A CN 201910864421 A CN201910864421 A CN 201910864421A CN 110580274 A CN110580274 A CN 110580274A
- Authority
- CN
- China
- Prior art keywords
- data
- task
- screen
- rendering
- mobile terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/24—Querying
- G06F16/248—Presentation of query results
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/29—Geographical information databases
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Databases & Information Systems (AREA)
- Data Mining & Analysis (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Computational Linguistics (AREA)
- Processing Or Creating Images (AREA)
- Controls And Circuits For Display Device (AREA)
- Instructional Devices (AREA)
Abstract
The application discloses a data rendering method, which belongs to the technical field of geographic information systems; a data rendering method comprises the steps of obtaining data from a database according to a current screen range, dividing the obtained data into tasks, judging whether the data are vector data, and if the data are vector data, compressing the data and then executing a drawing task; otherwise, directly executing the drawing task; or when the temporary primitive task appears, executing the drawing task; when a gap exists in the executed drawing task, if a user touches a screen or zooms the screen, the drawing task is terminated, otherwise, the next drawing task is continuously executed; if the user loosens the touch screen, restarting; when the execution of each drawing task is finished, finishing the drawing; the GIS data display method has fast and efficient display performance, particularly can be used for displaying GIS data with large data volume, can be used for fast loading and displaying, and cannot cause the phenomenon of jamming or dead halt.
Description
Technical Field
the invention relates to the technical field of geographic information systems, in particular to a GIS data rendering method.
Background
With the continuous development of mobile GIS, i.e., geographic information systems, GIS data rendering, acquisition and editing platforms based on large data volumes of mobile terminals are often applied to field data investigation and acquisition work. The field data investigation and collection work is carried out, and workers often need to carry remote sensing images and corresponding interior data to field work for data display, collection and editing; in the aspect of data display, for geographic information data with large data volume, the existing mobile GIS platform is difficult to carry out quick loading display, and even situations such as jamming and crash can occur sometimes. And the inconvenience is often brought to field investigators, the data browsing experience is influenced, and the working efficiency is reduced.
disclosure of Invention
In view of the problems of slow display, easy blockage, crash and the like of a GIS platform in the prior art, the GIS data rendering method is expected to be provided.
the invention is realized by the following technical scheme:
a method of GIS data rendering comprising the operations of:
s10) obtaining a data source for display at the mobile terminal
When loading and displaying GIS data, the mobile terminal firstly acquires and displays data corresponding to the current screen range, and screens out data required for drawing through space query in a file database according to the current screen range condition;
S20) dividing the data to be rendered into tasks
Dividing the acquired data source into tasks;
If the acquired data source is vector data, recording in a form of a plurality of task arrays, wherein each task array records at least one piece of data until the acquired vector data is divided;
If the acquired data source is the grid slice, recording in the form of a plurality of task arrays, wherein each task array records a plurality of pieces of data until the acquired grid slice data is divided;
S30) data compression of the vector data
performing data compression processing on the vector data according to the size of the pixel of the screen of the mobile terminal;
the data compression processing comprises the following steps: calculating the distance between adjacent nodes, if the distance between two adjacent nodes is smaller than the pixel resolution of the current screen, only one node is reserved, all adjacent nodes are sequentially judged, and finally only one node in one pixel is determined;
s40) temporary primitive task
The mobile terminal always detects the coordinate change of the temporary primitive on the screen, and if the coordinate changes, a temporary primitive drawing task is generated and added to the current drawing task S50);
s50) executing the rendering task
Drawing according to the existing drawing tasks, executing one drawing task each time, and displaying on a screen after drawing is finished;
A drawing gap judgment S60 occurs between each two drawing tasks;
S60) draw task gap determination
After the current drawing task is executed, the mobile terminal judges whether a user touches or zooms a screen; if the user touches or zooms the screen, terminating the subsequent drawing task;
If the user does not touch or zoom the screen, judging whether all the drawing tasks are executed or not, and if the user has any drawing tasks, jumping to S50) to execute the drawing tasks and circulate; if all the drawing tasks are executed, the drawing is completed, and the process proceeds to S70);
s70) displaying the drawn picture on the screen
And the mobile terminal completes all rendering processes, and the drawn picture is displayed on the screen.
The data required for subsequent drawing screened in the step S10) are: and carrying out space query in a database through the geographic range of the latitude and longitude range to obtain GIS data in the latitude and longitude range.
The vector data in S20) is composed of point, line and plane vector data.
the step S20) of task division for the data to be rendered includes:
if the vector data are the vector data, recording in a form of a plurality of task arrays, wherein each task array records 128 pieces of data until the obtained vector data are divided;
And if the grid slice is the grid slice, recording in a form of a plurality of task arrays, wherein each task array records 2 pieces of data until the obtained grid slice data is divided.
the S20), rendering the divided data task by task after the data division is completed.
and the node reserved in the step S30) is the node closest to the center of the screen pixel, and the judging method comprises the following steps: the mobile terminal calculates the distance between two adjacent nodes and compares the distance with the current screen pixel size, if the distance between the two nodes is smaller than the current screen pixel size, one node is removed, otherwise, the two nodes are displayed.
the generation of the temporary primitive in S40) is:
When the mobile terminal renders data, the GPS positioning point data is displayed on a screen in real time to form data of temporary primitives.
the task execution gap in S60) is: and the middle gap is formed after the last drawing task is executed and before the next drawing task is executed.
the step of judging whether the user touches or zooms the screen in S60) is:
Terminating execution of a subsequent rendering task when the user touches the screen;
When the user zooms the screen with the finger, zooming the currently drawn graph according to the user operation;
When the user' S finger leaves the screen, the graphics drawn by the current screen are cleared, and the process jumps to step S10 to re-enter the rendering process.
compared with the prior art, the invention has the beneficial effects that:
the display method has fast and efficient display performance, particularly can be used for fast loading and displaying GIS data with large data volume, and does not have the phenomenon of jamming or dead halt; because only the data in the current display range of the screen of the mobile terminal is read each time in a space query mode, the data volume is greatly reduced from a data source, the data rendering efficiency is improved, and the problems of slow rendering speed, blockage, crash and the like of the GIS data with large data volume in the rendering process are solved; because the data dividing mode is adopted, only data in one drawing task is read each time when drawing is executed, the memory pressure is greatly reduced, the drawing process of the graph is smoother, and the problems of memory overflow, blockage, halt and the like in the drawing process are solved; due to the adoption of the drawing task gap judging mode, when a user touches and zooms the screen, the subsequent drawing task can be terminated in time, so that the rendering process is smoother, and the user experience effect is better.
drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
FIG. 1 is a schematic flow chart of the present invention.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
it should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
referring to fig. 1, a GIS data rendering method includes the operations of:
s10) obtaining a data source for display at the mobile terminal
When loading and displaying GIS data, the mobile terminal firstly acquires and displays data corresponding to the current screen range, and screens out data required for drawing through space query in a file database according to the current screen range condition;
s20) dividing the data to be rendered into tasks
dividing the acquired data source into tasks;
If the acquired data source is vector data, recording in a form of a plurality of task arrays, wherein each task array records at least one piece of data until the acquired vector data is divided;
If the acquired data source is the grid slice, recording in the form of a plurality of task arrays, wherein each task array records a plurality of pieces of data until the acquired grid slice data is divided;
S30) data compression of the vector data
Performing data compression processing on the vector data according to the size of the pixel of the screen of the mobile terminal;
The data compression processing comprises the following steps: calculating the distance between adjacent nodes, if the distance between two adjacent nodes is smaller than the pixel resolution of the current screen, only one node is reserved, all adjacent nodes are sequentially judged, and finally only one node in one pixel is determined;
s40) temporary primitive task
the mobile terminal always detects the coordinate change of the temporary primitive on the screen, and if the coordinate changes, a temporary primitive drawing task is generated and added to the current drawing task S50);
S50) executing the rendering task
drawing according to the existing drawing tasks, executing one drawing task each time, and displaying on a screen after drawing is finished;
A drawing gap judgment S60 occurs between each two drawing tasks;
S60) draw task gap determination
after the current drawing task is executed, the mobile terminal judges whether a user touches or zooms a screen; if the user touches or zooms the screen, terminating the subsequent drawing task;
If the user does not touch or zoom the screen, judging whether all the drawing tasks are executed or not, and if the user has any drawing tasks, jumping to S50) to execute the drawing tasks and circulate; if all the drawing tasks are executed, the drawing is completed, and the process proceeds to S70);
S70) displaying the drawn picture on the screen
And the mobile terminal completes all rendering processes, and the drawn picture is displayed on the screen.
Specific examples are given below.
the GIS data rendering method comprises the following operations:
s10) obtaining a data source for display at the mobile terminal
when loading and displaying GIS data, the mobile terminal firstly acquires and displays data corresponding to the current screen range, and screens out only data required for drawing through space query in a file database according to the current screen range condition; when GIS data with large data volume is displayed, if all data in the file database are rendered each time, great requirements on the performance and rendering speed of the mobile terminal are inevitably met; and step S10 only obtains data to be drawn within the current screen range, so as to reduce the rendering workload from the data source to the greatest extent, improve the rendering speed, and reduce the pressure on the mobile terminal.
S20) dividing the data to be rendered into tasks
Dividing the acquired data source into tasks;
if the acquired data source is vector data, recording in a form of a plurality of task arrays, wherein each task array records at least one piece of data until the acquired vector data is divided;
If the acquired data source is the grid slice, recording in the form of a plurality of task arrays, wherein each task array records a plurality of pieces of data until the acquired grid slice data is divided; if the data obtained in step S10 is still the GIS data with a large data size, and the rendering workload cannot be reduced, and the pressure on the mobile terminal cannot be reduced, a task division manner is adopted, and rendering can be performed task by task, so that the rendering process is better and smooth, and the mobile terminal cannot be jammed or halted.
S30) data compression of the vector data
Performing data compression processing on the vector data according to the size of the pixel of the screen of the mobile terminal;
The data compression processing comprises the following steps: calculating the distance between adjacent nodes, if the distance between two adjacent nodes is smaller than the pixel resolution of the current screen, only one node is reserved, all adjacent nodes are sequentially judged, and finally only one node in one pixel is determined; by adopting a vector data compression mode, data redundancy can be reduced, the drawing workload is reduced, and the rendering efficiency is improved.
S40) temporary primitive task
if the temporary primitive exists, the mobile terminal always detects the coordinate change of the temporary primitive on the screen, and if the coordinate changes, a temporary primitive drawing task is generated and added into the current drawing task S50;
s50) executing the rendering task
Drawing according to the existing drawing tasks, executing one drawing task each time, and displaying on a screen after drawing is finished;
In the middle of each two times of drawing task execution, a drawing gap judgment S60 is carried out;
S60) draw task gap determination
after the current drawing task is executed, the mobile terminal judges whether a user touches or zooms a screen; if the user touches or zooms the screen, terminating the subsequent drawing task;
If the user does not touch or zoom the screen, judging whether all the drawing tasks are executed or not, and if the drawing tasks are still executed, jumping to S50 to execute the drawing tasks for circulation; if all the drawing tasks are executed, the drawing is finished, and the process goes to S70; in the data rendering process, a user may continuously perform touch or zoom operations on a screen, if a conventional rendering mode is adopted, the rendering process is very slow when the next rendering process is performed after one rendering is finished, and particularly when a large amount of GIS data is rendered, the user experience effect is poor and the rendering efficiency is low. And when the user touches or zooms the screen in a mode of judging the drawing task gap, the rendering process can be terminated in time, and the next rendering can be rapidly started. The rendering process is more flexible, the rendering efficiency is higher, and the user experience is better.
s70) displaying the drawn picture on the screen
and the mobile terminal completes all rendering processes, and the drawn photos are displayed on the screen.
the display method has fast and efficient display performance, particularly can be used for fast loading and displaying GIS data with large data volume, and does not have the phenomenon of jamming or dead halt; because only the data in the current display range of the screen of the mobile terminal is read each time in a space query mode, the data volume is greatly reduced from a data source, the data rendering efficiency is improved, and the problems of slow rendering speed, blockage, crash and the like of the GIS data with large data volume in the rendering process are solved; because the data dividing mode is adopted, only data in one drawing task is read each time when drawing is executed, the memory pressure is greatly reduced, the drawing process of the graph is smoother, and the problems of memory overflow, blockage, halt and the like in the drawing process are solved; due to the adoption of the drawing task gap judging mode, when a user touches and zooms the screen, the subsequent drawing task can be terminated in time, so that the rendering process is smoother, and the user experience effect is better.
s10) to screen out only the data required for the subsequent rendering as: and carrying out space query in a database through the geographic range of the latitude and longitude range to obtain GIS data in the latitude and longitude range.
s20) is composed of point, line, and plane vector data.
S20), the task division step of the data to be rendered is as follows:
If the acquired data source is vector data, recording in a form of a plurality of task arrays, wherein each task array records 128 pieces of data until the acquired vector data are divided;
If the acquired data source is the grid slice, recording the data in the form of a plurality of task arrays, and recording 2 pieces of data in each task array until the acquired grid slice data is divided.
s20), rendering the divided data task by task.
s30), reserving a node which is the closest node to the center of the screen pixel, and the judging method is as follows: the mobile terminal calculates the distance between two adjacent nodes and compares the distance with the current screen pixel size, if the distance between the two nodes is smaller than the current screen pixel size, one node is removed, otherwise, the two nodes are displayed.
s40), the temporary primitive unit generating step is:
when the mobile terminal renders data, the GPS positioning point data is displayed on a screen in real time to form temporary primitive data.
the task execution gap in S60) is: a middle gap is formed after the execution of the previous drawing task is finished and before the execution of the next drawing task; and when the user touches or zooms the screen in a mode of judging the drawing task gap, the rendering process can be terminated in time, and the next rendering can be rapidly started. The rendering process is more flexible, the rendering efficiency is higher, and the user experience is better.
s60), the step of determining whether the user touches or zooms the screen is:
Terminating execution of a subsequent rendering task when the user touches the screen;
And when the user fingers zoom the screen, zooming the currently drawn graph according to the user operation.
the above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (9)
1. A GIS data rendering method is characterized in that: the method comprises the following operations:
s10) obtaining a data source for display at the mobile terminal
when loading and displaying GIS data, the mobile terminal firstly acquires and displays data corresponding to the current screen range, and screens out data required for drawing through space query in a file database according to the current screen range condition;
s20) dividing the data to be rendered into tasks
Dividing the acquired data source into tasks;
if the acquired data source is vector data, recording in a form of a plurality of task arrays, wherein each task array records at least one piece of data until the acquired vector data is divided;
If the acquired data source is the grid slice, recording in the form of a plurality of task arrays, wherein each task array records a plurality of pieces of data until the acquired grid slice data is divided;
s30) data compression of the vector data
performing data compression processing on the vector data according to the size of the pixel of the screen of the mobile terminal;
the data compression processing comprises the following steps: calculating the distance between adjacent nodes, if the distance between two adjacent nodes is smaller than the pixel resolution of the current screen, only one node is reserved, all adjacent nodes are sequentially judged, and finally only one node in one pixel is determined;
s40) temporary primitive task
the mobile terminal always detects the coordinate change of the temporary primitive on the screen, and if the coordinate changes, a temporary primitive drawing task is generated and added to the current drawing task S50);
S50) executing the rendering task
Drawing according to the existing drawing tasks, executing one drawing task each time, and displaying on a screen after drawing is finished;
a drawing gap judgment S60 occurs between each two drawing tasks;
S60) draw task gap determination
After the current drawing task is executed, the mobile terminal judges whether a user touches or zooms a screen; if the user touches or zooms the screen, terminating the subsequent drawing task;
if the user does not touch or zoom the screen, judging whether all the drawing tasks are executed or not, and if the user has any drawing tasks, jumping to S50) to execute the drawing tasks and circulate; if all the drawing tasks are executed, the drawing is completed, and the process proceeds to S70);
S70) displaying the drawn picture on the screen
And the mobile terminal completes all rendering processes, and the drawn picture is displayed on the screen.
2. a data rendering method according to claim 1, characterized by:
the data required for subsequent drawing screened in the step S10) are: and carrying out space query in a database through the geographic range of the latitude and longitude range to obtain GIS data in the latitude and longitude range.
3. A data rendering method according to claim 1, characterized by: the vector data in S20) is composed of point, line and plane vector data.
4. A data rendering method according to claim 1, characterized by:
the step S20) of task division for the data to be rendered includes:
if the vector data are the vector data, recording in a form of a plurality of task arrays, wherein each task array records 128 pieces of data until the obtained vector data are divided;
and if the grid slice is the grid slice, recording in a form of a plurality of task arrays, wherein each task array records 2 pieces of data until the obtained grid slice data is divided.
5. A data rendering method according to claim 1 or 4, characterized by:
The S20), rendering the divided data task by task after the data division is completed.
6. a data rendering method according to claim 1, characterized by:
And the node reserved in the step S30) is the node closest to the center of the screen pixel, and the judging method comprises the following steps: the mobile terminal calculates the distance between two adjacent nodes and compares the distance with the current screen pixel size, if the distance between the two nodes is smaller than the current screen pixel size, one node is removed, otherwise, the two nodes are displayed.
7. a data rendering method according to claim 1, characterized by:
The generation of the temporary primitive in S40) is:
When the mobile terminal renders data, the GPS positioning point data is displayed on a screen in real time to form data of temporary primitives.
8. The GIS data rendering method of claim 1, wherein:
The task execution gap in S60) is: and the middle gap is formed after the last drawing task is executed and before the next drawing task is executed.
9. A data rendering method according to claim 1, characterized by:
the step of judging whether the user touches or zooms the screen in S60) is:
Terminating execution of a subsequent rendering task when the user touches the screen;
When the user zooms the screen with the finger, zooming the currently drawn graph according to the user operation;
When the user' S finger leaves the screen, the graphics drawn by the current screen are cleared, and the process jumps to step S10 to re-enter the rendering process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910864421.1A CN110580274B (en) | 2019-09-12 | 2019-09-12 | GIS data rendering method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910864421.1A CN110580274B (en) | 2019-09-12 | 2019-09-12 | GIS data rendering method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110580274A true CN110580274A (en) | 2019-12-17 |
| CN110580274B CN110580274B (en) | 2023-03-24 |
Family
ID=68811931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910864421.1A Active CN110580274B (en) | 2019-09-12 | 2019-09-12 | GIS data rendering method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110580274B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111459591A (en) * | 2020-03-31 | 2020-07-28 | 杭州海康威视数字技术股份有限公司 | To-be-rendered object processing method and device and terminal |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101702244A (en) * | 2009-11-10 | 2010-05-05 | 南京大学 | Parallel drawing load balancing method for free division of drawing area |
| CN102063832A (en) * | 2010-11-26 | 2011-05-18 | 北京腾瑞万里科技有限公司 | Method and device for drawing vector map of mobile terminal |
| US20140108909A1 (en) * | 2011-10-17 | 2014-04-17 | Opera Software Asa | Graceful degradation of level-of-detail in document rendering |
| CN104679822A (en) * | 2014-12-30 | 2015-06-03 | 北京市测绘设计研究院 | Geographic national condition field investigation and plotting method |
| CN107133272A (en) * | 2017-04-07 | 2017-09-05 | 南京南瑞集团公司 | A kind of Web ends magnanimity power network resources GIS data dynamic dispatching and rendering intent |
-
2019
- 2019-09-12 CN CN201910864421.1A patent/CN110580274B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101702244A (en) * | 2009-11-10 | 2010-05-05 | 南京大学 | Parallel drawing load balancing method for free division of drawing area |
| CN102063832A (en) * | 2010-11-26 | 2011-05-18 | 北京腾瑞万里科技有限公司 | Method and device for drawing vector map of mobile terminal |
| US20140108909A1 (en) * | 2011-10-17 | 2014-04-17 | Opera Software Asa | Graceful degradation of level-of-detail in document rendering |
| CN104679822A (en) * | 2014-12-30 | 2015-06-03 | 北京市测绘设计研究院 | Geographic national condition field investigation and plotting method |
| CN107133272A (en) * | 2017-04-07 | 2017-09-05 | 南京南瑞集团公司 | A kind of Web ends magnanimity power network resources GIS data dynamic dispatching and rendering intent |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111459591A (en) * | 2020-03-31 | 2020-07-28 | 杭州海康威视数字技术股份有限公司 | To-be-rendered object processing method and device and terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110580274B (en) | 2023-03-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110163198B (en) | Table identification reconstruction method and device and storage medium | |
| US10248216B2 (en) | Method for operating terminal device with gesture and device | |
| EP3044757B1 (en) | Structural modeling using depth sensors | |
| KR101457313B1 (en) | Method, apparatus and computer program product for providing object tracking using template switching and feature adaptation | |
| CN109036522B (en) | Image processing method, device, equipment and readable storage medium | |
| US20140321771A1 (en) | Techniques for real-time clearing and replacement of objects | |
| KR20150034296A (en) | Hit testing method and apparatus | |
| JP2013058147A (en) | Image processing device and method, and program | |
| JPWO2013179560A1 (en) | Image processing apparatus and image processing method | |
| CN112233009A (en) | Picture rendering method, device, equipment and storage medium | |
| CN103345738B (en) | Method for checking object based on area-of-interest and device | |
| CN105278825A (en) | Screen capturing method and mobile terminal | |
| CN110580274B (en) | GIS data rendering method | |
| CN113094457B (en) | Incremental generation method of digital orthophoto map and related components | |
| CN107393410B (en) | Method, medium, apparatus and computing device for presenting data on map | |
| CN106131628B (en) | A kind of method of video image processing and device | |
| CN110197459B (en) | Image stylization generation method and device and electronic equipment | |
| CN109683798B (en) | Text determination method, terminal and computer readable storage medium | |
| CN114820878B (en) | Image editing method and device | |
| CN112883297B (en) | Network topology display method and device and electronic equipment | |
| CN112529984B (en) | Method, device, electronic equipment and storage medium for drawing polygon | |
| KR20220151573A (en) | System for web-based 3D map display and method for file conversion using the same | |
| KR102206792B1 (en) | Method for image denoising using parallel feature pyramid network, recording medium and device for performing the method | |
| CN112070718A (en) | Method and device for determining regional quantization parameter, storage medium and terminal | |
| JP2000148126A (en) | Image display device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |