Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Shoufa Chen"'
Autor:
Zhongpeng Wang, Shoufa Chen
Publikováno v:
Journal of Electrical and Computer Engineering, Vol 2016 (2016)
This paper proposes a physical encryption scheme for discrete cosine transform (DCT) precoded OFDM-based visible light communication systems by employing chaos scrambling. In the proposed encryption scheme, the Logistic map is adopted for the chaos m
Externí odkaz:
https://doaj.org/article/d944937c89c94d99b3f07ec94d388a27
Publikováno v:
Multimedia Tools and Applications. 82:21561-21583
Compressive sensing (CS)-based image coding has been widely studied in the field of image processing. However, the CS-based image encoder has a significant gap in image reconstruction performance compared with the conventional image compression metho
Autor:
Zhongpeng Wang, Shoufa Chen
Publikováno v:
Optoelectronics Letters. 18:288-292
Publikováno v:
2021 IEEE/CVF International Conference on Computer Vision (ICCV).
Publikováno v:
Optics Communications. 431:229-237
In this paper, a joint symbol-scrambling and chaotic discrete Fourier transform (DFT) precoding scheme is proposed for orthogonal frequency-division multiplexing (OFDM) visible light communication (VLC) systems for encrypted image data. In the propos
Publikováno v:
Sensing and Imaging. 21
This paper proposes a secure image block compressive sensing scheme based on a key-controlled sparse basis matrix and key-controlled measurement matrix. In the proposed scheme, the original image is first divided into blocks, then inter-block scrambl
Publikováno v:
Optics Communications. 410:94-101
In this paper, a two-layer image encryption scheme for a discrete cosine transform (DCT) precoded orthogonal frequency division multiplexing (OFDM) visible light communication (VLC) system is proposed. Firstly, in the proposed scheme the transmitted
Autor:
Xinggang Wang, Shoufa Chen
Publikováno v:
ICIP
In this paper, we investigate the problem of resource-constrained object detection using deep learning, which is a challenging problem in real-world applications. To address this problem, we propose a single-shot detector with multiple inference path
Autor:
Zhongpeng Wang, Shoufa Chen
Publikováno v:
Optics Communications. 347:147-154
We propose and demonstrate experimentally the bit error rate (BER) performance of intensity modulation with direct detection (IM/DD) optical orthogonal frequency division multiplexing (OFDM) system by combining discrete Fourier transform (DFT) precod
Autor:
Shoufa Chen, Zhongeng Wang
Publikováno v:
2017 2nd International Conference on Image, Vision and Computing (ICIVC).
In this paper, a performance comparison of image block compressive sensing (BSC) based in chebyshew chaotic matrix using different sparse basis matrices is studied. These basis matrices are discrete cosine transform (DCT), discrete Hartley transform