A multi-layer authentication scheme for HEVC compressed video is proposed. The combination of CU sizes, which is unique to HEVC and sensitive to video manipulation, is considered along with other elements in the HEVC coding standard to generate the authentication tag. Temporal dependency was enforced, where the authentication tag generated in one slice is embedded into its subsequent slice. By ...

A flexible and effective macroblock-based framework for hybrid spatial and fine-grain SNR scalable video coding is proposed in this paper. In the proposed framework, the base layer is of low resolution and is generally encoded at low bit rates with traditional prediction based coding schemes. Two enhancement layers, i.e., the low-resolution enhancement layer and the high-resolution enhancement ...

strip tearing during cold rolling process has always been considered among the main concerns for steel companies. several works have been done so far regarding the examination of the issue. in this paper, experimental data from cold rolling tandem mill is used for detecting strip tearing. sensors are placed across the cold rolling tandem mill. they receive information on parameters (such as ang...

no unique method has been so far specified for determining the number of neurons in hidden layers of multi-layer perceptron (mlp) neural networks used for prediction. the present research is intended to optimize the number of neurons using two meta-heuristic procedures namely genetic and hill climbing algorithms. the data used in the present research for prediction are consumption data of water...

We investigate a minimalistic abstraction for a multi-layer spiking neural network (SNN), in order to gain fundamental insight into classifying spatiotemporal patterns using temporal coding. The firing model is based on coincidence detection with temporal binning: a neuron X fires at time t if at least η > 1 upstream neurons fire prior to t such that the spikes arrive at X in an interval [t−δ/2...

The use of matching pursuits (MP) to compress motion compensated residual video signals and its extension to layered coding have recently been demonstrated in [1, 2]. In this paper we describe a multi-pass rate control scheme for SNR scalable encoding based on MP. The rate control algorithm enforces constant quality on each layer, while keeping the bit budget for each layer at a pre-specified t...