System and method of estimating motion of image using block sampling

摘要

A system and method of estimating a motion of an image using block sampling are provided. The motion estimation system includes: a block sampling unit to divide a frame of an input image into a plurality of blocks and sample the plurality of blocks based on a lattice structure; a first motion vector determination unit to determine a motion vector of a first current block using motion vectors of neighboring blocks of the first current block with respect to the sampled blocks; and a second motion vector determination unit to determine a motion vector of a second current block based on features of motion vectors of sampled neighboring blocks of the second current block wherein the second current block is not sampled.

主权项

1. A system for estimating a motion, comprising:
a block sampling device to sample a plurality of blocks in a frame of an input image; a first motion vector determination device to set a decision type of a motion vector of a first current block, and determine a motion vector of the first current block based on the decision type, wherein the first current block is selected among the sampled blocks; and a second motion vector determination device to determine a motion vector of a second current block based on the decision type of motion vectors of neighboring sampled blocks of the second current block, wherein the second current block is selected among blocks that are not sampled, wherein the decision type comprises a first type that uses at least one of motion vectors of neighboring blocks of the first current block and a second type that uses a search region to determine the motion vector of the first current block, and the second motion vector determination device is configured to determine the motion vector of the second current block based on whether a motion vector determined based on the second type exists in the motion vectors of the neighboring sampled blocks of the second current block.