Báo cáo hóa học: " Research Article Edge Adaptive Color Demosaicking Based on the Spatial Correlation of the Bayer Color Difference" pptx

... polynomial curve fitting that is based on linear model estimator. The contributions of this study are twofold. (i) The factors which affect the selection of the order of the polynomial curve fitting ... result in the new evolved Release 8 of the UMTS standard, including most or all of the extensions and modifications of the UMTS system. Orthogonal frequency-divis...

Ngày tải lên: 21/06/2014, 22:20

... 5. 2. Spatial Correlation on theBayerColorDifferencePlane In the proposed method, the region type and the edge direction are determined directly on the Bayer CFA samples based on the correlation of ... (Non). Therefore, the final types of the edge direction are EDT ={Hor, Ver, Non}. In the proposed edge direction estimation, the diagonal directional...

Ngày tải lên: 21/06/2014, 08:20

... the already obtained results for reconstructing other missing areas. Therefore, the performance of the proposed method does not depend on the order of the reconstruction, that is, the positions ... Reconstructed image by the method based on the random selection. (f) Reconstructed image by the method which utilizes the MSE instead of the SSIM index. (g) Recons...

Ngày tải lên: 21/06/2014, 08:20

... etc.). Second, our method minimizes degradation of the stego image through finding the best mapping between the secret message and the cover image based on chaos and the genetic algorithm (GA). The ... minimize the degradation of stego image by shuffling the secret message based on the logistic map and GA. To find better mapping between the secret message and the...

Ngày tải lên: 21/06/2014, 16:20

... V l is the variance of the lth corresponding filter channel, l is the filter number index, L is the number of filters, and E l is the energy vector of the lth filter channel. Visual representation of the ... representation. In the figure there are three explicit regions. The left region represents speech (0–8 sec- onds), the middle region represents silence (8–10 second...

Ngày tải lên: 21/06/2014, 19:20

... that t he solution of the sequence converges strongly to a unique common fixed point of the representation S which is the solution of a variational inequality 6 .The viscosity iteration process 3.1 ... from that of the Lyapunov functional in the case that the last one is very involved. A generalization of the contraction principle in metric spaces by using continuo...

Ngày tải lên: 21/06/2014, 20:20

... evaluated based on the history of the received video information of the past k frames, as given in (2). m represents the mth set of the k frames received at the decoder. In this equation S i,j is ... levels of protection that are commensurate with their respective contributions to the quality of the video reconstructed by the decoder [21]. The block diagram d...

Ngày tải lên: 21/06/2014, 20:20

... observation about the phenomena is that the size of pseudo-Gibbs depends mainly on the location of a discontinuity in the signal. For example, when using the Haar wavelets as basis, a discontinuity ... of the shift, but there is no guarantee that this will always be the case. If the signal has several discontinuities, they may interfere with each other, that is, the...

Ngày tải lên: 21/06/2014, 22:20

... separately without using any other information. On the other hand, our approach makes use of the region information as well as color information (in the form of DM values). These help it to capture ... illumination: Figure 5 demonstrates the outcome of the proposed and the traditional methods in low-light imaging condition. Here, the traditional method misses the fac...

Ngày tải lên: 21/06/2014, 22:20

... minimization is the PAST cost function, (5) leads to the signal subspace. In addition, the aforementioned constraint guarantees the orthonormality of the signal subspace. The use of the forgetting ... shows the trajectories of the sources. Because of the nonstationarity of the environment, the forgetting factor is chosen as β = 0.75. The SNR of each sourc...

Ngày tải lên: 21/06/2014, 22:20