Method for direct mode encoding and decoding

摘要

Disclosed is a method of encoding a direct mode when coding moving images, the method includes finding a prediction and a cost for each of a plurality of direct modes including a backward-based temporal direct mode and a forward-based temporal direct mode with respect to a current block to be encoded and determining one mode having the lowest cost as a result of comparing the costs as an optimal encoding mode, thereby performing encoding the direct mode.

主权项

1. A method for operating an encoder for encoding in a direct mode when coding moving images, comprising the steps of:
receiving by the encoder input images to be encoded; storing said images in a memory; outputting from said memory a current block to be encoded; obtaining a prediction and a cost for each of a plurality of direct modes comprising a first temporal direct mode which uses a same position block located in a backward reference picture and a second temporal direct mode which uses a same position block located in a forward reference picture with respect to the current block to be encoded; determining one direct mode having a lowest cost as a result of comparing the costs as an optimal encoding mode; encoding a bit stream of the current block by the optimal encoding mode; and inserting information on the optimal encoding mode in the encoded bit stream.