Finally the adaptive filtering process is adopted to eliminate the noise effectively. The experimental results show that the proposed scheme can reduce the harmonic distortion signal and the noise signal. The s
In this paper, an adaptive NLM filtering scheme on local principle neighborhoods (PC-NLM) is proposed for structure-preserving noise/artifacts reduction in LDCT images.doi:10.1002/mp.12388YuankeSchoolZhangSchoolHongbingSchoolLuSchoolJunyanSchool
vector digital TV filteringnonlinear diffusion equationphaseunwrappingEDGE-DETECTIONRADAR INTERFEROMETRYNONLINEAR DIFFUSIONALGORITHMSFILTERIn this paper, the relationship between noise and phase unwrapping is analyzed. Advanced global and local denoising techniques have been exploited to serve the key step in ...
spatial-temporal combination has the ability to discriminate the static regions from the motion regions of video frames. In this method, the temporal bilateral Kalman filtering is performed on the static regions while the spatial bilateral adaptive nonlocal means filtering is performed on the motion ...
Self-adaptive algorithmcolor image processingimpulsive noisemultichannel filtersIn this study, an iterative self-adaptive filtering algorithm based on local extreme value noise detection for impulsive noise reduction in color images was presented. First, the new filter detects the corrupted image pixels; ...
Measuring the diffusion properties of crossing fibers is very challenging due to the high number of model parameters involved and the intrinsically low SNR of Diffusion Weighted MR Images. Noise filtering aims at suppressing the noise while pertaining th
In this paper, an adaptive filtering approach based on discrete wavelet transform and artificial neural network is proposed for ECG signal noise reduction. This new approach combines the multi-resolution property of wavelet decomposition and the adaptive learning ability of artificial neural networks, and...
In Chapter 1, we briefly discussed how signal and noise can be separated, if they occur in different frequency bands, through frequency-selective filtering (Figure 1.24). Unfortunately, the frequencies of signal and noise in physiologic signals, such as patient motion artifact, often overlap. One...
A personal audio device, such as a wireless telephone, includes an adaptive noise canceling (ANC) circuit that generates an anti-noise signal from a reference microphone signal and injects the anti-noise signal into the speaker or other transducer output to cancel ambient audio sounds. A processi...
local image denoising algorithms have gained popularity in the last decade because, relative to many local means algorithms, post-filtering clarity is improved while the real detail loss is reduced. In a “non-local means” (NLM) algorithm, an NLM filter utilizes redundancy of self-similarity ...