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基于循环一致对抗网络的玉米灰斑病图像迁移方法研究

Research on images migration method of maize gray disease based on cyclic consistent adversarial network

  • 摘要: 针对玉米病害图像采集困难,特别是灰斑病表现差异性较多问题,提出一种基于循环一致对抗网络(CycleGAN)的玉米灰斑病图像生成算法,通过病害图像迁移,使得健康的作物图像可以生成患病作物图像。此方法首先通过特征提取分别提取出健康玉米图像特征和灰斑病图像特征;然后把两种特征图像输入到CycleGAN的生成器Gs中,结合生成器中的残差网络提高图像传输时的准确性,利用两个判断器判断生成的图像是否一致;最后通过对健康玉米图像进行病害迁移得到所需的玉米灰斑病图像。试验结果表明:与VAE、GAN的图像进行迁移比较,结构相似SSIM值整体分别提升50.434%、18.762%,均方误差MSE值整体减少12.891%、9.558%;直观效果上CycleGAN迁移后的不同病害程度的玉米灰斑病效果更好,因此使用CycleGAN网络生成的玉米灰斑病图像更准确。

     

    Abstract: Aiming at the difficulty of image acquisition of maize disease, especially the problem of many different manifestations of gray spot disease, an image generation algorithm of corn gray spot disease was proposed based on cyclic uniform countermeasure network(CycleGAN), which could make healthy crop images through the migration of disease images. This method extracted the healthy corn and the gray spot disease image features through feature extraction. Then, the two feature images were input into CycleGAN’s generator Gs. The residual network in the generator was combined to improve the accuracy of image transmission, and the two judges were used to judge whether the generated images were consistent. Finally, the desired corn gray leaf spot image was obtained by disease migration on the healthy corn image. The results showed that compared with VAE and GAN images, SSIM value increased 50.434% and 18.762% respectively, MSE value decreased 12.891% and 9.558%. In terms of visual effect, the effect of gray spot of corn with different disease degrees after CycleGAN migration was better, so the image of gray spot of corn generated by CycleGAN network was more accurate.

     

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