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In recent years, the algorithm of Bayer patterned image compression based on “structure separation” has achieved better image quality. On the basis of previous work, the algorithm based on the All Phase Inverse Discrete Cosine Biorthogonal Transform (APIDCBT) and All Phase IDCT (APIDCT) interpolation is proposed in this paper. Instead of the conventional Discrete Cosine Transform (DCT), the APIDCBT...
In order to achieve multirate sampling conversion and Data Synchronization (DS) for multi-channel data from Electronic Instrument Transformers (EITs) in power system when the sampled data are outputted to IEDs, Big MU scheme has been proposed. Big MU consists of modules of MUs, multirate conversion and DS. Sampling data of MUs from EITs get through multirate conversion module including interpolation,...
Harmonics in power system are harmful to power network. In order to analyze power system harmonic more accurately, a new harmonic analysis algorithm based on interpolating windowed FFT and wavelet transform is proposed. This approach overcomes the shortcoming of FFT having frequency domain localization ability, but without time-domain localization ability. In this paper, the original signal is decomposed...
To minimize cost and size, most commercial digital cameras acquire images using a single electronic sensor (CCD or CMOS) overlaid with a color filter array (CFA) such that each sensor pixel only samples one of the three primary color values. To restore a full-color image from CFA samples, the two missing color values at each pixel need to be estimated from the neighboring samples, a process that is...
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