The present invention concerns a method for encoding a video sequence, comprising the following steps by a processing unit of an encoding device: splitting an image from the video sequence into blocks of values; for each block: transforming the values of the block into transform coefficients; organizing these transform coefficients into several sets of transform coefficients; quantizing the transform coefficients into quantized coefficients; encoding the block using the quantized coefficients; encoding the video sequence based on the encoding of the blocks;  wherein the quantizing step further comprises for quantized coefficients corresponding to one set of transform coefficients: determining scaled coefficients where a scaled coefficient is based on a transform coefficient of the one set, by multiplying the transform coefficient by a factor parameter and then adding a deadzone parameter, the deadzone parameter being scaled linearly with the index k of the transform coefficient within the set of transform coefficients; shifting each scaled coefficient to obtain a corresponding quantized coefficient; comparing a sum value representative of a summing result of magnitudes of the quantized coefficient values corresponding to the set of transform coefficients, with a threshold; and setting the quantized coefficients corresponding to the set of transform coefficients to zero, if the summing result is below the threshold.