Publication

Efficient Frame Interpolation for Wyner-Ziv Video Coding

Thomas Maugey
2009
Conference Papers

Abstract

In the framework of Wyner-Ziv Coding of Video, the coding efficiency depends on the quality of the side information (SI) at the decoder, where the side information is constructed from the key frames available at the decoder. In this paper, we propose a novel frame interpolation method for Wyner-Ziv coding, where the motion compensation is bidirectional and allows pixelwise estimation. The proposed interpolation method allows to obtain better SI quality than the one obtained by state-of-the-art interpolation methods.

Official source

https://infoscience.epfl.ch/entities/publication/d57e42d1-f4d7-4e08-83af-14d5aa873314

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Thomas Maugey
2009
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/d57e42d1-f4d7-4e08-83af-14d5aa873314

About this result

Related concepts (16)

Motion compensation

Motion compensation in computing, is an algorithmic technique used to predict a frame in a video, given the previous and/or future frames by accounting for motion of the camera and/or objects in the video. It is employed in the encoding of video data for video compression, for example in the generation of MPEG-2 files. Motion compensation describes a picture in terms of the transformation of a reference picture to the current picture. The reference picture may be previous in time or even from the future.

Inter frame

An inter frame is a frame in a video compression stream which is expressed in terms of one or more neighboring frames. The "inter" part of the term refers to the use of Inter frame prediction. This kind of prediction tries to take advantage from temporal redundancy between neighboring frames enabling higher compression rates. An inter coded frame is divided into blocks known as macroblocks. After that, instead of directly encoding the raw pixel values for each block, the encoder will try to find a block similar to the one it is encoding on a previously encoded frame, referred to as a reference frame.

Fractal compression

Fractal compression is a lossy compression method for s, based on fractals. The method is best suited for textures and natural images, relying on the fact that parts of an image often resemble other parts of the same image. Fractal algorithms convert these parts into mathematical data called "fractal codes" which are used to recreate the encoded image. Iterated function system Fractal image representation may be described mathematically as an iterated function system (IFS).

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