Image processing method, image processing apparatus and computer readable storage medium

摘要

An image processing method includes: a frame selection step for selecting a base frame and a reference frame; an image displacement amount calculation step for calculating an image displacement amount between the reference frame and the base frame; a weighting coefficient generation step for generating a weighting coefficient using at least one of an encoding type of the reference frame and the motion information of the encoded moving image data; and an image quality improvement step for improving an image quality of the base frame using the image displacement amount calculated in the image displacement amount calculation step and the weighting coefficient generated in the weighting coefficient generation step.

主权项

1. An image processing method that uses encoded moving image data including motion information, the method comprising:
selecting a base frame and a plurality of reference frames from temporally continuous frame images obtained by decoding the encoded moving image data; calculating an image displacement amount between the plurality of reference frames and the base frame; generating a weighting coefficient using the motion information of the encoded moving image data; and improving an image quality of the base frame using the calculated image displacement amount and the generated weighting coefficient; wherein the image displacement amount between the plurality of reference frames and the base frame is calculated by calculating a vector summation by adding up a plurality of motion vectors while taking direction into account; wherein the plurality of motion vectors are obtained from temporally different pairs of frame images selected from among the temporally continuous frame images; and wherein the weighting coefficient is generated using a number of times that the plurality of motion vectors are added up in the calculation of the vector summation in calculating the image displacement amount.