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Cochlear implant was traditionally equipped with one omni-microphone, and directional microphone has been applied in present papers and products. Microphone array based methods use space information to differentiate the desired signal and ambient noise. Delay value is an important parameter in beamforming, which determine the beam pattern. In the application of cochlear implant front-end signal acquisition,...
Case-based reasoning and rule-based reasoning are two techniques using the experience to resolve problems in fixture design. Each method has some shortcoming when it is employed separately. A hybrid method of case-based and rule-based reasoning can eliminate the drawbacks of each method and provide a better way for fixture design. In this paper, a retrieval mechanism of case-based reasoning in fixture...
In this paper we will focus on color problems which occur if we utilize MSR as an image processing technique, and propose a modified Luminance Based MSR (LB_MSR) algorithm. There are two novelties in our algorithm. Firstly, we only process the luminance channel which is obtained by principal component analysis (PCA). PCA provides orthogonality between channels, thus allow the color to remain stable...
The deformation must be controlled during machining, especially for the thin-walled workpiece. Fixture layout and clamping force are the major two aspects that influence the degree and distribution of machining deformation. In this paper, a dual optimization model of fixture layout and dynamic clamping force has been established for machining the thin-walled workpiece. First, an optimal fixture layout...
A modified luminance based adaptive MSR is proposed in this paper. This new method addresses the problems existing in standard Retinex algorithms, such as halo artifacts and incorrect colors. The paper chooses an adaptive Gaussian function whose shape follows edges of image, thus reducing the artifacts along high contrast edges. In addition, only the luminance channel instead of all color bands is...
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