| 摘要 |
Encoding and decoding methods are provided to improve the coding efficiency when implementing random access. A recovery point is defined. The encoding method includes: encoding an I-frame to obtain a first reconstructed image; encoding a reference image between the I-frame and the recovery point to obtain a second reconstructed image; refreshing the second reconstructed image to obtain a first refreshed image; using at least one of the first reconstructed image and the first refreshed image as a reference image to encode the corresponding frame at the recovery point. When random access occurs at the I-frame, from the recovery point correct decoding starts at the decoder and the decoded image is consistent with the coded image at the encoder. An encoder, a decoder, and an image processing system are also provided herein. |
