Image coding/decoding method and relevant apparatus

An image coding/decoding method and a relevant apparatus. The image coding method comprises: acquiring a current image; selecting K reference images of the current image from a knowledge base, wherein at least one image in the knowledge base does not belong to the random access segment where the current image is located, and K is an integer greater than or equal to 1; and decoding the current image according to the K reference images. The technical solution provided by the embodiments is beneficial to improving the video coding/decoding efficiency.