METHOD AND DEVICE FOR RESIZING AND DECODING SIZE, IMAGE DATA FLOW, SIGNAL FOR TRANSMITTING A DATA FLOW, MODULE FOR ADAPTING IMAGE QUALITY, AND DATA STORAGE SUPPORT

摘要

a device and method for resizable encoding and decoding, an image data stream, a signal, a computer program and an adaptation module for corresponding image quality. The invention relates to a method for encoding a sequence of images by generating a data stream in the form of a structure of embedded data layers of successive levels in which each corresponds to the predetermined resolution of said images. said method comprises an encoding stage consisting of encoding at least one of said n + 1-level layers by prediction based on said n-level layer in encoding each n-level data layer as a subflow base and optionally in the form of at least one enhancing subflow allowing at least one enhanced quality version of said images to be obtained. The inventive method also consists of encoding at least one level n data layer at least a single subflow allowing the reconstruction of the version of said images at said level n resolution to a higher quality than said qualities. where said single sub-layer of level n is not used during prediction coding of layers of a level other than level n.