Ms. Yujin Ham Profile

Yujin Ham

at Ewha Womans Univ

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Proceedings Article | 1 August 2021 Presentation + Paper

Training compression artifacts reduction network with domain adaptation

Yu-Jin Ham, Chaehwa Yoo, Je-Won Kang

Proceedings Volume 11842, 118420U (2021) https://doi.org/10.1117/12.2597094

KEYWORDS: Image compression, Distortion, Denoising, Image enhancement, Video compression

Read Abstract +

Compression artifact removal is imperative for more visually pleasing contents after image and video compression. Recent works on compression artifact reduction network (CARN) assume that the same or similar quality of images would be employed for both training and testing, and, accordingly, a model needs a quality factor as a prior to accomplish the task successfully. However, the possible discrepancy will degrade performance substantially in a target if the model confronts a different level of distortion from the training phase. To solve the problem, we propose a novel training scheme of CARN to take an advantage of domain adaptation (DA). Specifically, we assign an image encoded with a different quality factor as a different domain and train a CARN using DA to perform robustly in another domain of a different level of distortion. Experimental results demonstrate that the proposed method achieves superior performance on DIV2K, BSD68, and Set12.

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