Abstract:
Provided is an apparatus and method for encoding and decoding a video signal. A video signal encoding apparatus may include: a reference image storage unit (160) to store a reference image; a template motion estimation unit (170) to estimate a motion between an input image and the reference image using a template, and to generate motion estimation information; an adaptive motion compensation unit (180) to generate a predicted image using the motion estimation information and the reference image, to calculate a filter coefficient with respect to the predicted image using the template, and to filter the predicted image using the filter coefficient; a transformation and quantization unit (120) to perform integer-transformation and quantization for a differential image that is a difference between the input image and the filtered predicted image; and an entropy encoding unit (130) to entropy encode the quantized differential image and to output an image stream.
Abstract:
A method for providing a broadcasting service containing contents includes: generating contents representations metadata for describing possible representations of the contents; and outputting the contents representations metadata, wherein the contents representations metadata includes one or more contents representations description elements which describe a metadata tool defined by a standard specification.
Abstract:
Provided is a package scheme to support application program downloading and a method and a system for an application program download service using the same in a system such as a TV-Anytime system. A method for forming a package capable of supporting application program downloading includes the steps of: a) generating metadata on general information of the application program including type information of the application program; b) generating metadata on detailed information of the application program including version information of the application program; c) generating metadata on usage environment of a terminal to which the application program is applied; and d) generating a package including the application program and all the metadata.