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Therefore, we propose an efficient on-board compression method for remote sensing images with arbitrary-shaped clouds by leveraging the characteristics of cloudy images. Firstly, we introduce two novel spatial preprocessing strategies, namely, the optimized adaptive filling (OAF) strategy and the controllable quantization (CQ) strategy. Specifically, the OAF strategy fills each cloudy region using the contextual information at its inner and outer edge to completely remove the information of cloudy regions and minimize their coding consumption, which is suitable for images with only thick clouds. The CQ strategy implicitly identifies thin and thick clouds and rationally quantifies the data in cloudy regions to alleviate information loss in thin cloud-covered regions, which can achieve the balance between coding efficiency and reconstructed image quality and is more suitable for images containing thin clouds. Secondly, we develop an efficient coding method for a binary cloud mask to effectively save the bit rate of the side information. Our method provides the flexibility for users to choose the desired preprocessing strategy as needed and can be embedded into existing compression framework such as JPEG2000. Experimental results on the GF-1 dataset show that our method effectively reduces the coding consumption of invalid cloud-covered regions and significantly improve the compression efficiency as well as the quality of decoded images.<\/jats:p>","DOI":"10.3390\/rs16183431","type":"journal-article","created":{"date-parts":[[2024,9,16]],"date-time":"2024-09-16T10:56:57Z","timestamp":1726484217000},"page":"3431","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Efficient On-Board Compression for Arbitrary-Shaped Cloud-Covered Remote Sensing Images via Adaptive Filling and Controllable Quantization"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9545-718X","authenticated-orcid":false,"given":"Keyan","family":"Wang","sequence":"first","affiliation":[{"name":"State Key Laboratory of Integrated Services Networks (ISN), Xidian University, Xi\u2019an 710071, China"},{"name":"School of Telecommunication Engineering, Xidian University, Xi\u2019an 710071, China"},{"name":"Hangzhou Institute of Technology, Xidian University, Hangzhou 311231, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jia","family":"Jia","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Integrated Services Networks (ISN), Xidian University, Xi\u2019an 710071, China"},{"name":"School of Telecommunication Engineering, Xidian University, Xi\u2019an 710071, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2468-3128","authenticated-orcid":false,"given":"Peicheng","family":"Zhou","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Integrated Services Networks (ISN), Xidian University, Xi\u2019an 710071, China"},{"name":"School of Telecommunication Engineering, Xidian University, Xi\u2019an 710071, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Haoyi","family":"Ma","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Integrated Services Networks (ISN), Xidian University, Xi\u2019an 710071, China"},{"name":"School of Telecommunication Engineering, Xidian University, Xi\u2019an 710071, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Liyun","family":"Yang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Integrated Services Networks (ISN), Xidian University, Xi\u2019an 710071, China"},{"name":"School of Telecommunication Engineering, Xidian University, Xi\u2019an 710071, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0988-6173","authenticated-orcid":false,"given":"Kai","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Computer Science and Technology, Xidian University, Xi\u2019an 710071, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0234-6270","authenticated-orcid":false,"given":"Yunsong","family":"Li","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Integrated Services Networks (ISN), Xidian University, Xi\u2019an 710071, China"},{"name":"School of Telecommunication Engineering, Xidian University, Xi\u2019an 710071, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,9,15]]},"reference":[{"key":"ref_1","first-page":"1251","article-title":"Remote sensing satellite networking technology and remote sensing system: A survey","volume":"3","author":"Yuan","year":"2015","journal-title":"IEEE Int. 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