Báo cáo hóa học: " Research Article Improved Intra-coding Methods for H 264/AVC" docx

... not much developed and offers several opportunities for future research. For example, see 5, 6 and the references therein, for the applications of recurrent neural network regarding the extended ... discussed. Acknowledgments This research is supported by the Visiting Professor Program of King Saud University, Riyadh, Saudi Arabia and Research Grant no. VPP.KSU.108. The authors wo...

Ngày tải lên: 21/06/2014, 06:20

... descent method, the hybrid steepest descent method, and the conjugate gradient methods; these methods have common form x n1  x n  ω n d n , 3.68 where x n is the nth approximation to the solution, ... x h x, where h is a potential function for γf i.e., h  xγfx for x ∈ H . The results obtained in this paper improve and extend the recent ones announced by S. Takahashi...

Ngày tải lên: 21/06/2014, 07:20

... each piece of information gives a constraint which in turn, gives rise to a convex set C i to which the unknown image should belong see 7. The advantage of a Hilbert space H is that the nearest ... 1} be the unit sphere of E. Then the Banach space E is said to be smooth provided that lim t → 0 x  ty−x t 2.2 exists for each x, y ∈ U. It is also said to be uniformly smooth if th...

Ngày tải lên: 21/06/2014, 23:20

... Indeed, for any h 1 ,h 2 ∈Ewe have ρ  h 1 ,h 2  <K⇒ d  h 1 x ,h 2 x  ≤ Kψx, ∀x ∈ G, d  Jh 1 x,Jh 2 x   d  F  x, h 1  ηx  ,F  x, h 2  ηx  ≤   gx   · d  h 1  ηx  ,h 2  ηx  ≤ ... 4.13 The mapping c is the unique fixed point of J in the set F   h ∈E,ρf, h < ∞  . 4.14 This says that c is the unique mapping verifyi...

Ngày tải lên: 22/06/2014, 06:20

... y 2   (5.12) for all n ∈ N.Tendingn →∞,wehaveh(y 1 ) − h( y 2 ) ≤ 4My 1 − y 2 . Similarly, we have h( y 2 ) − h( y 1 ) ≤ 4My 1 − y 2 .Thush is continuous. We can also show that z n →∞ implies that h( z n ) ... 2.3, the set A =  p ∈ F : h( p) = inf y∈F h( y)  (5.13) is nonempty ; see Takahashi [27, 28] for more details. 12 Fixed Point Theory and Applications On the other ha...

Ngày tải lên: 22/06/2014, 22:20

... reduces the performance since the UEP codes have worse thresholds than the non-UEP codes. The performance for different values of the threshold offset is found in [3], which shows that a threshold offset of ... The code with the highest average I APPv has the best overall performance within this family of codes. The value of the threshold offset  is optimized for a specific E b /N 0 , which m...

Ngày tải lên: 21/06/2014, 11:20

... intraprediction scheme in H. 264/AVC (S scheme) [1], the original BMA intracoding scheme (BMA scheme) [7], and the hybrid intraprediction scheme (H scheme) combined the two proposed methods are testified ... sequences are somehow degraded while using R scheme, such as “Foreman” and “Highway” (the possible reason has been explained in Section 4.2). As the hybrid scheme between E-BMA and R,...

Ngày tải lên: 21/06/2014, 22:20

... this section by observing that the size of both the LPCD and the C-LPCD DAs exhibit an exponential growth, with the constrained model resulting in a higher growth rate. For this reason, both ... another via a neigh- borhood system. A neighborhood system for S is defined as N ={N i |∀i ∈ S},whereN i is the set of sites neighboring i. The neighboring relationship has the following properties...

Ngày tải lên: 22/06/2014, 00:20

... speed up the ME algorithms themselves, such as the hybrid unsymmetrical-cross multihexagon-grid search (UMHexagonS) algorithm [2], which has been adopted in JM reference software. The other is to ... 10th frame) in the foreman sequence. As shown, it requires 110 search points for the UMHexagonS algorithm to find the minimum error (SAD 16×16 = 864 at the 26th iteration). The search stops at t...

Ngày tải lên: 22/06/2014, 00:20

... based on the hash to generate the best SI block from the previous frame. In this scheme, the encoder is no longer an intraframe coder because of the hash store. The hash bits do help in motion ... of performance has been achieved by the proposed approach, compared to the-state-of-the-art DVC. The proposed approach achieves better RD performances than TDWZ for all test sequences. For seque...

Ngày tải lên: 22/06/2014, 00:20