Interpolation filter coefficient adaptive generation method and device

The invention discloses an interpolation filter coefficient adaptive generation method and device. The method comprises the following steps: determining whether a current image belongs to a first frame or a scene switching frame of a video to be coded; and if so, outputting an interpolation filter coefficient by using a CNN interpolation filter coefficient prediction network, and performing interpolation filtering on the image frame according to the interpolation filter coefficient. and if not, performing interpolation filtering on the image by using the currently set interpolation filter coefficient. According to the invention, the adaptive filter generation algorithm based on a neural network becomes practical, and the decision process of the filter coefficient is only called when the first frame of the video or the video scene is switched, so that the increase degree of coding complexity caused by the complex neural network is greatly reduced. 本发明公开了一种插值滤波器系数自适应生成方法和装置。所述方法包括：判断当前图像是否属于待编码视频的第一帧或者是场景切换帧。若是