Abstract:
An image decoding method performed by a decoding apparatus according to the present invention comprises the steps of: generating a reconstruction area for a target area within a current picture; deriving a predetermined plurality of basic filters for the target area; updating at least one basic filter among the plurality of basic filters; receiving weight information for each of the basic filters; determining a merge filter for the target area on the basis of the basic filters and the weight information; and generating a modified reconstruction area by performing filtering on the target area on the basis of the filter coefficient of the determined merge filter. The present invention allows updating with filter information suitable for improving the visual quality of the target area and can thereby improve the accuracy of filtering and overall coding efficiency.
Abstract:
An image decoding method according to the present document comprises a step for performing inverse first-order transform and inverse non-separable transform on a residual sample. The inverse non-separable transform is performed on the basis of a transform index indicating a predetermined transform kernel matrix, the inverse first-order transform is performed on the basis of a multiple transform selection (MTS) index indicating MTS for a horizontal transform kernel and a vertical transform kernel, and a syntax element bin string for the transform index is derived on the basis of first context information when a tree type for a split structure of a target block is not a single tree type and is derived on the basis of second context information when the tree type is the single tree type.
Abstract:
Según una realización del presente documento, se pueden derivar coeficientes de filtrado de componentes cruzados para el filtrado de componentes cruzados. Se pueden generar muestras de croma reconstruidas filtradas modificadas sobre la base de los coeficientes de filtrado de componentes cruzados. La presente realización puede mejorar la precisión del filtrado en bucle. (Traducción automática con Google Translate, sin valor legal)
Abstract:
Según una realización del presente documento, un procedimiento de filtrado en bucle en un procedimiento de codificación de imágenes/vídeo puede comprender un procedimiento de filtrado en bucle adaptativo de componentes cruzados. CCALF, según la presente realización, puede aumentar la precisión del filtrado en bucle. (Traducción automática con Google Translate, sin valor legal)