Fei Hu Image compression and encryption scheme based on deep learning = Схема стиснення та шифрування зображень на основі глибинного навчання / Fei Hu, Changjiu Pu, Haowei Gao, Mengzi Tang, Li Li // Наук. вісн. Нац. гірн. ун-ту. - 2016. - № 6. - С. 142-148. - Бібліогр.: 10 назв. - англ.Purpose. With the growing demands of image processing on the Internet, image compression and encryption have been playing an important role in image protection and transfering. In this paper we will investigate deep learning technology in image compression, and chaotic logistic map in image encryption, to obtain a scheme in image compression and encryption. We have evaluated this scheme with some performance measures and results show it is effective. Methodology. We formulate the scheme using deep learning and chaos. With the deep learning technology, levels of features are extracted from an image and a certain level of features can be used as a compressed representation of the image. Chaos is used to encrypt the compressed image. Findings. We first introduceda five-layer Stacked Auto-Encoder model, which is trained by the Back Propogration method, and then we obtained the compressed representation of an image. By using the logistic map method, a pseudo-stochastic sequence is generated to encrypt the compressed image. Originality. We conducted a study of image compression and encryption. Image characteristics are extracted from an arbitrary level of our deep learning model, and they are used as the compressed representation of the image. The research on this aspect has not been found at present. Practical value. We have evaluated this scheme on several randomly selected images. And results show it is robust and can be widely used for most images. Індекс рубрикатора НБУВ: З970.632
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Шифр НБУВ: Ж16377 Пошук видання у каталогах НБУВ
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