Eco-Friendly Highly Sensitive Transducers Based on a New KNN-NTK-FM Lead-Free Piezoelectric Ceramic for High-Frequency Biomedical Ultrasonic Imaging Applications.
Ruimin ChenLaiming JiangTianfu ZhangTakayuki MatsuokMasato YamazakiXuejun QianGengxi LuAhmad SafariJianguo ZhuK. Kirk ShungTeng MaQifa ZhouPublished in: IEEE Trans. Biomed. Eng. (2019)
Keyphrases
- high frequency
- knn
- high resolution
- k nearest neighbor
- low frequency
- nearest neighbor
- distance function
- k nearest neighbour
- wavelet transform
- low pass
- high frequencies
- knn algorithm
- wavelet coefficients
- text classification
- subband
- feature selection
- super resolution
- frequency band
- knn classification
- neural network
- image processing
- multiscale
- support vector machine
- image analysis
- discrete wavelet transform
- similarity search
- wavelet domain
- high frequency components
- low and high frequency
- information extraction
- phase shifting
- knn classifier
- k nearest
- multiresolution
- remote sensing
- high spatial resolution
- high quality
- spatial resolution
- shows significant improvements