4results about How to "Improve encoding speed" patented technology

The present disclosure provides an encoding method, an encoding apparatus, a decoding method, a decoding apparatus, a device and a readable storage medium, and it relates to the field of communication technology, so as to increase an encoding speed and a decoding speed. The encoding method includes: obtaining a feature image of a to-be-encoded image; obtaining a codebook range scaling factor in accordance with the feature image; obtaining a content-adaptive priori codebook range for each channel of the feature image in accordance with the codebook range scaling factor and a channel-adaptive priori codebook range for each channel; and performing entropy encoding on a target channel in accordance with an actual symbol range for the target channel of the feature image and a content-adaptive priori codebook range for the target channel, so as to form an encoded stream. The target channel is any channel of the feature image.

The embodiment of the invention provides a motion information determination method and device for inter-frame prediction, electronic equipment and a storage medium, and relates to the technical field of video coding. The method comprises the following steps: determining a plurality of reference blocks corresponding to a target coding block; in response to the reference block in an inter-frame prediction mode, acquiring corresponding first motion information as a motion information candidate; in response to the fact that the reference block is in the intra-frame prediction mode, acquiring second motion information selected during inter-frame prediction as a motion information candidate; generating a motion information candidate list of the target coding block; and performing distortion estimation on the motion information candidates in the motion information candidate list through distortion estimation search, and determining target motion information of the target coding block. According to the method, potential and valuable motion clues of motion information selected by an intra-frame prediction reference block during inter-frame prediction are mined. Therefore, the source of the candidate list is enriched, the quality of the motion estimation starting point can be effectively improved, and the compression efficiency and the coding speed are improved.

The invention provides an AIGC video coding method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining a to-be-coded video based on the aliasing of a real foreground video and a pure background image, and adding noise matched with the real foreground video to a background region of the to-be-coded video; determining a current frame of the video to be coded; under the condition that the current frame belongs to the first image group, setting the pure background image as a first frame, encoding the pure background image to obtain encoding information, and under the condition that the current frame does not belong to the first image group, copying the encoding information of the first frame in a previous image group of the current frame as the encoding information of the first frame in the current image group; performing coding tree division on subsequent frames of the first frames of all the image groups of the to-be-coded video to obtain a coding tree; and determining the coding frame of the to-be-coded video based on the coding information of the first frame of each image group and the coding tree of each image group, thereby accelerating the video coding speed and reducing the coding complexity of video coding.