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In today's world, mobile phones play an important role in communication. People using mobile phones often face the problem of noise signals affecting the quality of speech. Passive noise control suppresses the higher frequency acoustic noise. It is a technique that provides sound reduction by noise-isolating materials such as insulation, sound-absorbing(More)
Recent studies in sparse representations show a variety of applications in the field of image processing. Such as in image denoising, inpainting, compression and more. But always the size of the dictionary has a trade off between the approximation speed and accuracy. In this paper, a moving k-means based dictionary pruning algorithm is applied to the(More)