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- W4287644229 abstract "Recent works have successfully applied some types of Convolutional Neural Networks (CNNs) to reduce the noticeable distortion resulting from the lossy JPEG/MPEG compression technique. Most of them are built upon the processing made on the spatial domain. In this work, we propose a MPEG video decoder that is purely based on the frequency-to-frequency domain: it reads the quantized DCT coefficients received from a low-quality I-frames bitstream and, using a deep learning-based model, predicts the missing coefficients in order to recompose the same frames with enhanced quality. In experiments with a video dataset, our best model was able to improve from frames with quantized DCT coefficients corresponding to a Quality Factor (QF) of 10 to enhanced quality frames with QF slightly near to 20." @default.
- W4287644229 created "2022-07-25" @default.
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- W4287644229 date "2020-10-09" @default.
- W4287644229 modified "2023-10-06" @default.
- W4287644229 title "Video Quality Enhancement Using Deep Learning-Based Prediction Models for Quantized DCT Coefficients in MPEG I-frames" @default.
- W4287644229 doi "https://doi.org/10.48550/arxiv.2010.05760" @default.
- W4287644229 hasPublicationYear "2020" @default.
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