Video compression is very crucial method which is used to reduce the quantity of data used to represent digital video pictures. However, most video compression is loss when the video pictures data is quantized. So a quantizer is key factors for adjusting the bitrate and controlling the picture quality. Importantly, if the concerned region of video sequence takes on high level picture quality, t...

According to recent forecast, mobile video will generate over 69 percent of global mobile data traffic by 2018. Due to this the liability on video service providers to match the video quality expectations of the end user has increased. The goal of video coding is to ensure good video quality within the provision of transmission and storage. Bit rates, distortion and complexity are factors that ...

By introducing video-quality adaptation mechanisms into intermediate network equipments using active network technologies, we can provide users with video distribution services taking into account client heterogeneity in terms of available bandwidth, performance of client systems, and user’s preferences about video quality. In this paper, we implement the low-pass filter, a quality adjustment t...

We propose a computational opinion model for estimating the video quality of videophone services. Although opinion models for speech such as the E-model have been established and widely used, little attention has been given to opinion models for video quality estimation. Our proposed opinion model is useful as a network-planning tool using several video parameters that affect the quality of vid...

Streaming video applications on the Internet generally have very high bandwidth requirements and yet are often unresponsive to network congestion. In order to avoid congestion collapse and improve video quality, these applications need to respond to congestion in the network by deploying mechanisms to reduce their bandwidth requirements under conditions of heavy load. In reducing bandwidth, vid...

improved wireless video communication is challenging since video stream is vulnerable to channel distortions. Hence, the need to investigate efficient scheme for improved video communications. This research work investigated broadcast schemes, and proposes smart broadcast technique as a solution for improved video quality over constrained network such as wireless network under tight constraints...

The scope of this paper is the estimation of subjective video quality for low-resolution video sequences as they are typical for mobile video streaming. Although the video quality experienced by users depends on spatial (edges, colors, ...) and more considerably on temporal (movement speed, direction, ...) features of the video sequence, most of the well-known methods are based on spatial featu...

There is a great demand to assess video quality transmitted in real time over packet networks, and to make this assessment in real time too. Quality assessment is achieved using two types of methods: objective or subjective. Subjective methods give more reliable results than objective methods; the latter do not always correlate well with human perception. Unfortunately, subjective methods are n...

<p>The purpose of this study was to describe the effectiveness and response students about Digital Electronics Practicum with Logisim Application Using Whatsapp Video Call. This type research is descriptive research. The subjects were 50 Physics Education Students Lambung Mangkurat University taking courses. Data collection techniques are through practicum assessment sheets student questi...