Developing automatic tiled SAR image mosaic process for faster online access

The requirement for spatial information that is not affected by weather conditions is increasing, especially in areas with high rainfall levels. Synthetic Aperture Radar (SAR) images that are free from weather effects are required to monitor land cover in the cloud-covered areas. This process requires a SAR image mosaic stage. This research studies the automatic SAR image mosaic process where the output is a mosaic image organized in tile structure. This structure is developed for multi-source of image mosaic to make image analysis more effective. In addition, the organization of satellite images in a tile-based mosaic format can make it easier for users to carry out further processing and spatial analysis. In this study, the output produced is a tile-based SAR mosaic image. To test the results, a visual and accessibility analysis was carried out. The result is verified based on radiometric analysis for several objects. On objects on the earth’s surface, especially in the agriculture area, SAR mosaic images have seamless in specific areas such as agriculture and forest. The result of the automation process in mosaicking SAR images could reduce time when accessing the data online. After calculating the access speed for both upload and download of the data, the access speed for tile-based SAR images increased 3 times compared to scene-based SAR images in the same area.