Asymptomatic COVID-19 CT image denoising method based on wavelet transform combined with improved PSO.
Guowei WangShuli GuoLina HanAnil Baris CekderiXiaowei SongZhilei ZhaoPublished in: Biomed. Signal Process. Control. (2022)
Keyphrases
- image denoising
- method based on wavelet
- denoising
- natural images
- noisy images
- wavelet coefficients
- wavelet transform
- particle swarm optimization
- image processing
- wavelet domain
- particle swarm optimization pso
- higher peak signal to noise ratio
- hard thresholding
- pso algorithm
- particle swarm optimization algorithm
- wavelet neural network
- multiscale
- optimization algorithm
- higher order
- fitness function
- input image
- differential evolution
- feature extraction
- convergence speed
- wavelet packet
- neural network