Compressed video sequences are very sensitive to channel disturbances when they are transmitted through an unreliable environment such as a wireless channel. The transmission errors not only corrupt the current decoded frame, but also propagate to the succeeding frames. Many error concealment methods have been proposed to recover the errors by exploiting temporal and spatial correlation. In thi...

In this paper, we proposed a temporal error concealment (EC) using the concealed boundary pixels and the adaptive block matching method. The proposed boundary matching method improves the spatial correlation of the macroblocks (MBs) by reusing the pixels of the concealed MB to estimate a motion vector of a error MB. The adaptive block matching method inspects horizontal edge and vertical edge f...

This paper investigates the performance of different temporal concealment techniques when incorporated within a long-term motion compensated video codec. In particular, the paper finds a combination of techniques that best recovers the spatial-temporal components of a damaged longterm motion vector. It is demonstrated also that accurate recovery of the spatial components of the damaged motion v...

In network delivery of compressed video, packets may be lost if the channel is unreliable. Such losses tend to occur in burst. In this paper, we develop an error resilient video encoding approach to help error concealment at the decoder. We introduce a new block shuffling scheme to isolate erroneous blocks caused by packet losses. And we apply data hiding to add additional protection for motion...

With the COVID-19 pandemic, people have become inclined to seek online counseling help in addition face-to-face counseling. For individuals who need mental health services, social-physical isolation and quarantine decisions rendered a necessity rather than an option. In this process, needing services may avoid seeking due their self-concealment tendencies or inadequate self-perceived social sup...

This paper proposes an efficient error concealment method for SNR scalable coded video. The algorithm adaptively selects a proper concealment candidate from the base or the enhanced pictures to conceal the artifact of a lost enhancement block. To determine the best concealment candidate, we propose a trial process in which the concealment candidates are examined based on two criteria: 1) pictur...

Choice of nest site has important consequences for nest survival. We examined nest-site characteristics relative to nest success in Karoo Prinias breeding in coastal dwarf shrubland, where high nest predation is the main cause of nest failure. Initially, we compared nests that failed during the building, laying, incubation and nestling stages and those from which young were successfully raised,...

In order to provide good QoS for video streaming in error-prone environments, effective error control methods are essential. Current error control methods can be classified into two categories: 1) Transport layer approaches such as FEC and retransmission; 2) Application layer approaches such as error resilience coding and error concealment. By far, most existing research is aimed towards optimi...

Title of Document: TWO SIDES OF THE SAME COIN? ASSESSING THE DISTINCTNESS OF STIGMA CONCEALMENT AND DISCLOSURE PROCESSES Skyler D. Jackson, Master of Science, 2014 Thesis directed By: Assistant Professor, Jonathan J. Mohr Department of Psychology Past scholarship is divided regarding whether stigma concealment and disclosure represent a unidimensional construct. This study used an online survey...