Laser & Optoelectronics Progress, Volume. 57, Issue 8, 081018(2020)

Image Edge Information Aided Compressive Sampling Strategy

Jun Yang1、*, Bo Pan2, Li Chen1, Yongan Zhu1, Tao Jiang1, and Chen Cui3
Author Affiliations
  • 1College of Mathematics Physics and Information Engineering, Jiaxing University, Jiaxing, Zhejiang 314001, China
  • 2Jiaxing Guodiantong New Energy Technology Co. LTD., Jiaxing, Zhejiang 314001, China
  • 3School of Data Science and Technology, Heilongjiang University, Harbin, Heilongjiang 150080, China
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    Compressive sensing (CS) is proposed as a new signal compressive sampling theory in recent years. At the coding end CS obtains compressed data through projection, which requires more computing resources and higher implementation cost. Different from the standard compressed sensing, this paper proposes an image compression sampling method based on edge information assistance. In other words, some pixels of the image are randomly collected as measurement, and the pixels near the image edge are sampled with a high probability. Finally, the nonlinear optimization method is used to restore the image. The proposed sampling strategy obtains the random measurements and the adaptive measurements respectively through two steps. This paper gives the physical description of the sampling strategy and realizes it through simulation experiment. At the same time, the optimal ratio of edge information in sampling matrix is also discussed. Experimental results show that the proposed algorithm can quickly and effectively recover high quality images.

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    Jun Yang, Bo Pan, Li Chen, Yongan Zhu, Tao Jiang, Chen Cui. Image Edge Information Aided Compressive Sampling Strategy[J]. Laser & Optoelectronics Progress, 2020, 57(8): 081018

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    Paper Information

    Category: Image Processing

    Received: Sep. 4, 2019

    Accepted: Sep. 16, 2019

    Published Online: Apr. 3, 2020

    The Author Email: Yang Jun (yangj95@mail2.sysu.edu.cn)

    DOI:10.3788/LOP57.081018

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