CAJ | 학술논문

以储粮害虫为研究对象，阐述了小波去噪的基本原理和高频系数置零、硬阈值法、软阈值等几种方法，并提出了一种改进的小波阈值去噪方法，比较了这几种方法在粮虫图像去噪上的优缺点。实验结果表明，改进的新阈值方法能更好的去除噪声，收到更好的效果。
이저량해충위연구대상，천술료소파거조적기본원리화고빈계수치령、경역치법、연역치등궤충방법，병제출료일충개진적소파역치거조방법，비교료저궤충방법재량충도상거조상적우결점。실험결과표명，개진적신역치방법능경호적거제조성，수도경호적효과。
This paper researchs food pest as the object, and expounds the basic principle of wavelet de noising and coefficient of high frequency place to zero method, hard threshold method, soft threshold method etc, then proposes an improved wavelet threshold denoising method. This paper compares the advantages and disadvantages of these methods on denoising food pest im-age. The experimental results show that the new improved threshold method can get rid of the noise better, it could get a better result.