Multicast-based content transmitting system and method, and device and method for estimating high-speed movement

摘要

The present invention relates to a multicast-based content transmitting system and method, and a device and method for estimating high-speed movement. Included are: a content providing device for generating N×M multicast stream channels having different transmission start times and transmission rates, providing N×M multicast stream channel lists, and transmitting content through one channel of N×M multicast stream channels; and a user terminal for selecting one channel of the N×M multicast stream channel lists provided from the content providing device and receiving content through the selected multicast stream channel.

主权项

1. A motion estimation apparatus, the apparatus comprising:
a processor configured to
create an n-th compared image and an n-th reference image having a value obtained by multiplying a pixel value by n times as an n-th pixel value of a pixel for each pixel of the compared image and the reference image,create an n-th integral compared image and an n-th integral reference image by calculating pixel values up to set pixel coordinates for the n-th compared image and the n-th reference image,calculate an n-th momentum of the compared image and an n-th momentum of the reference image for a set block using the n-th integral compared image and the n-th integral reference image,calculate a block matching error using the n-th momentum of the compared image and the n-th momentum of the reference image, andestimate a coordinate difference between a compared image block and a reference image block having a smallest block matching error as a motion vector.