Definition:Motion estimation explores the temporal redundancy, which is inherent in video sequences, and it represents a basis for lossy video compression.
Other than video compression, motion estimation can also be used as the basis for powerful video analysis and video processing.
Introduction
A standard movie, which is also known as motion picture, can be defined as a sequence of several scenes. A scene is then defined as a sequence of several seconds of motion recorded without interruption. A scene usually has at least three seconds [2]. A movie in the cinema is shown as a sequence of still pictures, at a rate of 24 frames per second. Similarly, a TV broadcast consists of a transmission of 30 frames per second (NTSC, and some flavors of PAL, such as PAL-M), 25 frames per second (PAL, SECAM) or anything from 5 to 30 frames per second for typical videos in the Internet. The name motion picturecomes from the fact that a video, once encoded, is nothing but a sequence of still...
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References
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de Oliveira, J.C. (2006). Motion Estimation. In: Furht, B. (eds) Encyclopedia of Multimedia. Springer, Boston, MA. https://doi.org/10.1007/0-387-30038-4_131
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DOI: https://doi.org/10.1007/0-387-30038-4_131
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