The MPEG-2 video compression standard is commonly used in real-time video transmission. In real-time video transmission, a little bit error can cause huge data lost in the video sequence. The errors and data loss degrade the quality of video. The error concealment method is useful to overcome the errors in the broken slice of MPEG-2. In this paper, we present an efficient error concealment algo...

Error concealment on the end of decoder, which makes use of the correctly received video data to conceal the lost video, does not need any redundancy data and has no impact to bandwidth of network. A new concealment method based on multiple motion predictions is proposed here. In this paper, motion vectors in the past and/or future frames are used to achieve the current motion vectors when the ...

The present research tests a model derived from self-determination theory to explain why self-concealment (the tendency to keep distressing personal information secret) is associated with negative well-being outcomes. Two studies tested a model in which self-concealment predicts the thwarting of basic needs for autonomy, competence, and relatedness, which then results in negative psychological ...

We introduce the concept of “marketing avoidance” – consumer efforts to conceal themselves and to deflect marketing. The setting is one where sellers market some item through solicitations to potential consumers, who differ in their benefit from the item and suffer harm from receiving solicitations. Concealment by one consumer induces sellers to shift solicitations to other consumers, while def...

Error concealment for stereoscopic images receives little attention in research of image processing. While many methods have been proposed for monocular images, this paper considers a concealment strategy for block loss in stereoscopic image pairs, utilizing the information of the associated image to fulfill the higher quality demand. We present a hybrid approach, combining a 2D projective tran...

The problem of error control and concealment in video communication is becoming increasingly important because of the growing interest in video delivery over unreliable channels such as wireless networks and the Internet. This paper reviews the techniques that have been developed for error control and concealment in the past 10–15 years. These techniques are described in three categories accord...

Transmission of a compressed video signal over a lossy communication network exposes the information to losses and errors, which leads to significant visible errors in the reconstructed frames at the decoder side. In this paper we present a new hybrid error concealment algorithm for compressed video sequences, based on temporal and spatial concealment methods. We describe spatial and temporal t...

OBJECTIVES Despite the rapid expansion of the antiaging cosmetic industry in recent years, little is known about the current social judgment consequences of concealing one's age. In two studies, we examined perceivers' evaluations and mental representations of individuals who engage in age concealment. METHODS In Study 1, we assessed young and older adults' reactions toward a middle-aged or o...