Abstract: Aspects of the disclosure provide methods, apparatuses, and non-transitory computer-readable storage mediums for video encoding/decoding. An apparatus includes processing circuitry that decodes prediction information for a current block in a current picture that is a part of a coded video sequence. The processing circuitry determines prediction samples of the current block based on a first linear transform of reference samples of the current block. One or more parameters of the first linear transform are determined based on one of the prediction information and one or more parameters of a second linear transform associated with another block in the coded video sequence. The processing circuitry reconstructs the current block based on the prediction samples.

Abstract: Systems and methods for implementing temporal filtering are provided. A method includes: applying a temporal filter to a current picture and encoding the current picture after the temporal filter is applied. The applying includes obtaining an exponential function, that includes an exponent with a numerator with at least one first factor and a denominator with at least one second factor, by computing the exponent of the exponential function as fixed-point values or by using at least one lookup table; obtaining a weight of at least one neighboring picture by multiplying a scaling function with the exponential function; obtaining a filtered sample value of the current picture based on a sample value of the current picture and the weight of the at least one neighboring picture; and replacing the sample value of the current picture with the filtered sample value.

Abstract: Systems and methods for implementing temporal filtering are provided. A method includes: applying a temporal filter to a current picture and encoding the current picture after the temporal filter is applied. The applying includes obtaining an exponential function; obtaining a weight of at least one neighboring picture by multiplying a scaling function with the exponential function; obtaining a filtered sample value of the current picture based on a sample value of the current picture and the weight of the at least one neighboring picture; and replacing the sample value of the current picture with the filtered sample value.

Abstract: Systems and methods for implementing temporal filtering are provided. A method includes: applying a temporal filter to a current picture and encoding the current picture after the temporal filter is applied. The applying includes obtaining an exponential function, that includes an exponent with a numerator with at least one first factor and a denominator with at least one second factor, by computing the exponent of the exponential function as fixed-point values or by using at least one lookup table; obtaining a weight of at least one neighboring picture by multiplying a scaling function with the exponential function; obtaining a filtered sample value of the current picture based on a sample value of the current picture and the weight of the at least one neighboring picture; and replacing the sample value of the current picture with the filtered sample value.

Abstract: Aspects of the disclosure provide methods, apparatuses, and non-transitory computer-readable storage mediums for video encoding/decoding. An apparatus includes processing circuitry that decodes prediction information for a current block in a current picture that is a part of a coded video sequence. The processing circuitry determines prediction samples of the current block based on a first linear transform of reference samples of the current block. One or more parameters of the first linear transform are determined based on one of the prediction information and one or more parameters of a second linear transform associated with another block in the coded video sequence. The processing circuitry reconstructs the current block based on the prediction samples.