KR-20260063426-A - METHOD AND SYSTEM FOR MORNITORING MARINE ENVIRONMENT CHANGE USING SATELLITE IMAGES WITH DIFFERENT RESOLUTION

KR20260063426AKR 20260063426 AKR20260063426 AKR 20260063426AKR-20260063426-A

Abstract

The present invention relates to a method and system for monitoring changes in the marine environment using satellite images having different resolutions. The method for monitoring changes in the environment using satellite images having different resolutions may include the steps of: collecting a plurality of first satellite images having a first resolution captured at different times; calculating an Urban Index (UI) for each of the plurality of first satellite images; monitoring the values of pixels constituting each of the plurality of first satellite images using the UI for each of the plurality of first satellite images; and predicting the timing of environmental changes in an area of interest using the results of monitoring the pixel values.

Inventors

조성익
함선정
신영남

Assignees

텔레픽스 주식회사

Dates

Publication Date: 20260507
Application Date: 20241030

Claims (10)

In a method for monitoring environmental changes using satellite images with different resolutions, A step of collecting a plurality of first satellite images having a first resolution captured at different points in time; A step of calculating a UI (Urban Index) for each of the plurality of first satellite images; A step of monitoring the value of a pixel constituting each of the plurality of first satellite images using a UI for each of the plurality of first satellite images; and A method for monitoring environmental changes using satellite images of different resolutions, characterized by including a step of predicting the timing of environmental changes in an area of interest using the monitoring results of the pixel values above.
In paragraph 1, In the step of predicting the timing of environmental changes in the aforementioned area of interest, A step of identifying at least one pixel satisfying a change amount condition among the plurality of pixels constituting each of the plurality of first satellite images based on the above monitoring result; A step of specifying an analysis target period including the time when a first satellite image corresponding to the above change amount condition is acquired; and A method for monitoring environmental changes using satellite images of different resolutions, characterized by further including the step of predicting the specified analysis target period as the time of environmental change in the region of interest.
In paragraph 2, The above change amount condition is, A method for monitoring environmental changes using satellite images of different resolutions, characterized by being satisfied based on the fact that the value of the specific pixel mentioned above has different amounts of change starting from the analysis target period.
In paragraph 3, The amount of change for the value of the specific pixel above is at least one of a first amount of change and a second amount of change, and The above first change amount is, It refers to the amount of change in pixel values corresponding to the urban environment, and The above second change amount is, A method for monitoring environmental changes using satellite images of different resolutions, characterized by meaning the amount of change in pixel values corresponding to the vegetation environment.
In paragraph 2, For the analysis target area corresponding to the specific pixel above, the method further includes the step of acquiring a plurality of second satellite images taken at different times during the period of environmental change of the area of interest. The above second satellite image is, A method for monitoring environmental changes using satellite images having different resolutions, characterized by being a satellite image having a second resolution different from the first resolution.
In paragraph 5, Urbanization monitoring method using satellite images of different resolutions, characterized by analyzing environmental changes in the target area of analysis using the plurality of second satellite images.
In paragraph 4, Based on the fact that the value of the specific pixel having the second change amount has the first change amount starting from the analysis target period, A method for monitoring environmental changes using satellite images of different resolutions, characterized by predicting that a specific artificial structure was constructed in the area of interest during the analysis period.
In Paragraph 7, Acquiring a plurality of second satellite images having a second resolution that captured the region of interest at different points in time during the analysis period, and A method for monitoring environmental changes using satellite images of different resolutions, characterized by analyzing a specific artificial structure built in the area of interest using the plurality of second satellite images.
In an environmental change monitoring system using satellite images with different resolutions, It includes a control unit that collects a plurality of first satellite images having a first resolution captured at different points in time, and The above control unit is, Calculate a UI (Urban Index) for each of the above plurality of first satellite images, and Using a UI for each of the plurality of first satellite images, the value of a pixel constituting each of the plurality of first satellite images is monitored, and A customized environmental change monitoring system characterized by predicting the timing of environmental changes in an area of interest using the monitoring results of the above pixel values.
A program that is executed by one or more processes in an electronic device and stored on a computer-readable recording medium, The above program is, A step of collecting a plurality of first satellite images having a first resolution captured at different points in time; A step of calculating a UI (Urban Index) for each of the plurality of first satellite images; A step of monitoring the value of a pixel constituting each of the plurality of first satellite images using a UI for each of the plurality of first satellite images; and A program stored on a computer-readable recording medium characterized by including instructions for performing a step of predicting the timing of environmental changes in a region of interest using the monitoring results of the values of the above-mentioned pixels.

Description

Method and System for Monitoring Marine Environment Change Using Satellite Images with Different Resolutions The present invention relates to a method and system for monitoring changes in the marine environment using satellite images having different resolutions. Recently, due to advancements in satellite technology, the use of satellites is becoming increasingly important in fields such as Earth observation, weather forecasting, and communications. Through sensors and cameras, satellites can collect various forms of data, including high-definition images and video, geographical information, and environmental data. Furthermore, advancements in satellite technology are bringing significant innovation to the field of environmental monitoring, and their importance is growing, particularly in the monitoring of urbanization and changes in the marine environment. While high-resolution satellite imagery is essential for monitoring environmental changes, the high cost of such images poses a problem of poor cost-effectiveness for monitoring large areas. To address these issues, research is actively underway on methods to monitor environmental changes at a more economical cost. One such method proposed utilizes satellite imagery with different resolutions to monitor environmental changes in areas of interest more effectively. For example, an environmental monitoring method that combines medium-resolution and high-resolution satellite imagery enables efficient data collection and analysis. In particular, high-resolution satellite imagery, such as Google Earth images, allows for the acquisition of detailed data up to the level of ultra-high-resolution satellite and aerial images (resolution of 30 cm or less) when magnified, thereby increasing the accuracy of environmental monitoring. Furthermore, the method of monitoring environmental changes using satellite imagery of different resolutions is suitable for the characteristics of Korea, which has many coastal areas bordering the sea, and can be utilized as a useful means to effectively monitor the potential for disasters and calamities in coastal urban areas caused by climate change. By continuously observing the status and development direction of coastal cities, it is easier to develop solutions that reflect the specific characteristics of coastal regions like Korea, in addition to the cost-saving benefits of fusing free satellite imagery. Accordingly, there is a need for a method to monitor changes in the marine environment of areas of interest by utilizing satellite imagery of different resolutions together. FIG. 1 is a conceptual diagram illustrating an environmental change monitoring system using satellite images having different resolutions according to the present invention. FIG. 2 is a flowchart illustrating a method for monitoring environmental changes using satellite images having different resolutions according to the present invention. FIG. 3 is a conceptual diagram for explaining the process of collecting a first image according to the present invention. FIG. 4 is a conceptual diagram for explaining a mathematical formula for calculating the UI (Urban Index) according to the present invention and a map representing the UI (Urban Index). FIG. 5a is a conceptual diagram for explaining the process of monitoring the UI of a first image according to the present invention. FIG. 5b is a conceptual diagram illustrating a method for predicting the timing of environmental changes based on UI values according to the present invention. FIG. 6a is a conceptual diagram illustrating a method for identifying pixels in an area where environmental changes are predicted according to the present invention. FIG. 6b is a conceptual diagram for explaining the process of determining the timing of environmental changes using a second satellite image of a region of interest corresponding to a specific pixel according to the present invention. FIG. 7 is a conceptual diagram illustrating an embodiment for outputting a service page capable of selling information on environmental changes in a region of interest according to the present invention. Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings. Identical or similar components are assigned the same reference number regardless of the drawing symbols, and redundant descriptions thereof will be omitted. The suffixes "module" and "part" used for components in the following description are assigned or used interchangeably solely for the ease of drafting the specification and do not have distinct meanings or roles in themselves. Furthermore, in describing the embodiments disclosed in this specification, if it is determined that a detailed description of related prior art could obscure the essence of the embodiments disclosed in this specification, such detailed description will be omitted. Additionally, the attached drawings are intended only to facilitate understand