Abstract
The file size and picture quality are factors to be considered for streaming, storage and transmitting videos over networks. This work compares Cinepak, Intel, Microsoft Video and Indeo Codec for video compression. The peak signal to noise ratio is used to compare the quality of such video compressed using AVI codecs. The most widely used objective measurement by developers of video processing systems is Peak Signal-to-Noise Ratio (PSNR). Peak Signal to Noise Ration is measured on a logarithmic scale and depends on the mean squared error (MSE) between an original and an impaired image or video, relative to (2n-1)2. Previous research done regarding assessing of video quality has been mainly by the use of subjective methods, and there is still no standard method for objective assessments. Although it has been considered that compression might not be significant in future as storage and transmission capabilities improve, but at low bandwidths compression makes communication possible.
Highlights
High quality video in multimedia applications and wireless communication has generated interest in digital communication services for sharing real-time video audio and data
The results showed that for MPEG-2 coding at bit rates equivalent to 0.8Mbits/sec or more, none of the measures was significantly more accurate than Peak Signal-to-Noise Ratio (PSNR) [16]
The method used for the measurement of the video quality for this work is peak signal-to-noise ratio (PSNR)
Summary
High quality video in multimedia applications and wireless communication has generated interest in digital communication services for sharing real-time video audio and data. This is as a result of success and growth in this area. There is an increased demand in providing network portable computers with access to the same services as wired computers [1]. There has been an increase in the demand for portable computers to provide universal connectivity similar to that of wired networks. The IEEE 802.11 study group was aimed at providing an international standard for WLANs, to satisfy the needs of wireless local area networks [15]
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