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A novel U-shape Swin-Gan based Optical to SAR image transfer method

2025· article· W4416727754 on OpenAlexaffabout
Hongqi Zhang, Henry Leung

Bibliographic record

Venuenot available
Typearticle
Language
FieldEngineering
TopicAdvanced Image Fusion Techniques
Canadian institutionsUniversity of Calgary
FundersScience and Engineering Research Council
KeywordsUpsamplingSynthetic aperture radarEncoderRadar imagingFeature (linguistics)Image resolutionGenerative adversarial networkImage fusionTransformer

Abstract

fetched live from OpenAlex

Synthetic Aperture Radar (SAR) consistently acquires data regardless of lighting conditions, atmospheric interference, or weather factors such as cloud cover and haze. However, acquiring SAR images is more expensive and time-consuming than optical images. This paper presents an innovative U-shape Swin Transformer generative adversarial network (SwinGAN) to transfer optical to SAR images. The U- shape SwinGAN utilizes a symmetric architecture with downsampling and upsampling paths connected by feature fusion path for detailed feature preservation. Swin Transformer is utilized as a backbone to optimize the network's ability to capture long-range dependencies. Furthermore, the specially designed contextual image spatial relation encoder (ciSRE) enhances the ability to capture local information. This method is applied on datasets based on Google Earth and Sentinel-1 imagery acquired over Calgary (CA). The simulated results show better transform consistency than state-of-the-art models.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Methods · Consensus signal: Methods
Teacher disagreement score0.273
Threshold uncertainty score0.999

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0010.002
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0060.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.011
GPT teacher head0.306
Teacher spread0.295 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

Study designBench or experimental
Domainnot available
GenreMethods

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2025
Admission routes2
Has abstractyes

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