Sentence examples for a diffusion operation from inspiring English sources

Finally, a diffusion operation is employed to change pixels.

We adopt the anisotropic diffusion as a direction diffusion operation and use the diffusion function for spatial error concealment as in [7].

Based on the error patterns generated by WZ corrupted frames, an edge-directed filter is constructed to remove the noises around edges caused by errors in the WZ bits by adopting the anisotropic diffusion as a direction diffusion operation and the diffusion function for spatial error concealment proposed in [7] (7).

One of such function is (5) D (∇ I ) = α · e − || ∇ I || 2 / 2 σ 2. Equations (4) and (5) describe an iterative process in which the diffusion operation continues until a stop criterion is reached.

In this paper, we redefine the first propagating step of G as G p. It can be seen that G p can be regarded as a special case of local-mean diffusion operation based on local-set.

Since for most encryption algorithms it is hard to implement the diffusion operation in relation with the plain-image dependence, a self-adaptive encryption scheme is proposed as a remedy.

Indeed, an underlying idea behind the local-mean diffusion operator is to incorporate the structure of the adjacency matrix into the local-mean diffusion operation of reconstructed residual.

The local-mean diffusion operation is that the reconstructed residuals associated with the sampled vertices are diffused to the their adjacent vertices.

Thus, attackers can predict the order of permutation and the security of the cryptosystem only relies on the diffusion operation.

For IGDR, the diffusion operation of reconstructed residuals consists of two components, which are local-mean diffusion operation and global-bias diffusion operation.

The collaboration of the local-mean diffusion operation and global-bias diffusion operation is used to accelerate the convergence of reconstruction.