We propose a method for the concealment of frame erasures in packet switched speech communication systems such as Voice over IP that is particularly tailored to the case of wireless transmission. At the receiver, the concealment algorithm is assisted by specific side information that is communicated via a steganographic channel within the bitstream of the employed speech codec. An exemplary imp...

Fujitsu’s MB86H06 set-top box (STB) chip is a high-density chip featuring high-performance, superior error concealment, robust audio-video (AV) synchronization, and low cost. It comprises a QFP256 package with DDR2 memory and supports a two-layer printed circuit board (PCB) layout for a low bill of material (BOM) cost. It is widely used in the China terrestrial television broadcasting (CTTB) ma...

A low complexity spatial-domain error concealment method is proposed to reconstruct still images and intracoded (I) frames in video when they are transmitted through unreliable channels in this work. The proposed concealment algorithm works with the following steps. First, missing edges in a lost macroblock (MB) are detected and recovered using gradient data. Then, the lost MB is implicitly div...

In this paper, we propose an Error Concealment algorithm for INTRA-frame losses over packet loss channels. The novelty is that not only the INTRA-frame but also the subsequent INTER-frames are error concealed. We use the received INTRA-MBs to refine their neighbors based on the strong correlation between adjacent pixel values. In addition, Motion Compensation is used to reconstruct the INTER-pi...

People with concealable stigmatized identities often conceal to avoid facing prejudice and discrimination. Yet, this strategy carries risk; concealment may engender social costs. Across five studies in which participants (total n = 1992) were recruited from an online pool (Prolific) institutional undergraduate pool, we found that people who conceal, relative disclose, viewed as less moral socia...

The possibility of masking an accelerated two-qubit system by using a minimum number qubits is discussed. It shown that the information may be masked in either entangled local states or product non-local separable states. We examine each partition these satisfies conditions. Due to presence partition, one consider it type quantum data hiding scheme. local/non-local encoded state robust against ...

In this paper packet loss error concealment for video sequences compressed using spatial scalability is investigated. Slice support is implemented into the JSVM reference codec of the scalable extension to H.264/AVC video coding standard. The nonnormative error concealment scheme introduced in the codec is developed further, adding to it the capability to also consider correctly received slice ...