Satellite Image Analysis Using Ground Data Matching
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Solution Overview
Problem
There is no guarantee that the timing of satellite image capture coincides with the timing of observation data acquisition, as satellites with one-day prograde orbits can only capture images once a day, while ground observation data is not always acquired at the same frequency.
Innovation Solution
A data analysis apparatus and method that acquires satellite images and corresponding ground data based on specific conditions, using a data acquisition unit to collect satellite images and ground data, and an analysis processing unit to analyze the images using the acquired data, ensuring compatibility and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If satellite images are captured at fixed orbital intervals, then the satellite can systematically cover the observation area, but the timing may not coincide with ground observation data acquisition
Solution Approach 1:
The system performs preliminary actions by acquiring both satellite images and ground observation data in advance, storing them with metadata including timing information. This allows the system to later match and pair data from different sources even when their acquisition times do not coincide, resolving the timing synchronization issue while maintaining systematic coverage.
Solution Approach 2:
The system introduces an intermediary data processing layer that acts as a mediator between satellite image data and ground observation data. This intermediary layer handles the timing mismatch by using metadata to match and pair data from different sources, enabling reliable analysis even when acquisition timings differ.
2Productivity
If ground observation data is acquired at multiple times a day, then more frequent data is available, but the timing may not align with satellite image capture
Solution Approach 1:
The system acquires and stores both satellite images and ground observation data with their respective timing metadata in advance. This preliminary data collection allows the system to later match data pairs based on temporal proximity, maintaining high data acquisition frequency while achieving reliable timing alignment through post-acquisition matching.
Solution Approach 2:
The system uses feedback mechanisms where the timing information from both data sources is processed and used to determine the best matches between satellite images and ground observations. This feedback loop allows the system to account for timing mismatches and adjust the data pairing accordingly, maintaining both frequency and reliability.
3Measurement precision
If data from different sources are combined for analysis, then analysis accuracy is improved, but data compatibility issues arise due to different acquisition timings
Solution Approach 1:
The system performs preliminary data preparation by acquiring and storing both satellite images and ground observation data with complete metadata including timing information. This preliminary organization allows the system to later filter, match, and pair data from different sources based on temporal criteria, achieving high analysis accuracy while maintaining data compatibility through systematic pre-processing.
Solution Approach 2:
The system changes the parameter approach by using timing metadata and temporal proximity as key matching criteria rather than requiring exact timing coincidence. This parameter change allows the system to flexibly match data from different sources within a acceptable time window, improving both analysis accuracy and data compatibility simultaneously.
Data Source
AI summary
There is provided a data analysis apparatus capable of selecting observation data suitable for analysis of an image captured by a satellite, a method, and a program. The data analysis apparatus includes: a data acquisition unit configured to acquire a satellite image obtained by an artificial satellite imaging a predetermined place on a ground at a predetermined time and acquire ground data corresponding to a condition for capturing the satellite image from the ground data acquired on the ground; and an analysis processing unit configured to analyze the satellite image by using the acquired ground data and the acquired satellite image. The present technology can be applied to, for example, a satellite image processing system that uses the satellite image.