IMAGE ENHANCEMENT USING STOCHASTIC RESONANCE (MA-P2)

Author(s) : Qinghua Ye (Institute of Acoustics, Chinese Academy of Sciences, China) Haining Huang (Institute of Acoustics, Chinese Academy of Sciences, China) Chunhua Zhang (Institute of Acoustics, Chinese Academy of Sciences, China)

Abstract : This paper presents an image enhancement method using stochastic resonance (SR) and provides two applications to sonar image processing, i.e. side-scan sonar image and bearing-time record. Simulated and real data are tested and the results show that the proposed method is suitable to noisy images with very low signal-to-noise ratio (SNR), when the texture of the object is not subtle, and the region where the object lies in is not too small compares to the minimal region coverage that SR works. We also show that an additional amount of noise besides the noise of the image itself may be helpful to enhance the image.

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