Resources Contact Us Home
Method and device for estimating and hierarchically coding the motion of sequences of images

Image Number 4 for United States Patent #5351095.

A method for estimating motion which calculates a priori for a current image a first field of motion for blocks of a first level resulting from a partition of the image into blocks of a so-called maximum size, on the basis of a symmetric estimation algorithm, using the preceding and following images in the sequence to calculate the displaced inter-raster differences. Then, a second field of motion for blocks resulting from the partition of a block of the first level are calculated, and so on until a level of blocks of a minimum size. The final field of motion results from the selection of the most suited motion vectors from those of the various levels and is directly associated with a quadtree coding tree. Such a method finds particular application to image transmission chains, and in particular high-definition.

  Recently Added Patents
Data distribution apparatus, data distribution method, and distribution control program
Method and system for determining an optimal missile intercept approach direction for correct remote sensor-to-seeker handover
Platform for generating electricity from flowing fluid using generally prolate turbine
Calibration method for non-ideal transceivers
Pipe coupling
Semiconductor memory system having ECC circuit and controlling method thereof
Patterned MR device with controlled shape anisotropy
  Randomly Featured Patents
Mobile land drilling rig and method of installation
Suspension seat
Solar cell module, enclosure with solar cells, enclosure installation method, and solar cell system
Add-in card based cheat detection platform for online applications
Microelectronic vehicle service system sensor
Panel, in particular floor panel
Novel chemical compounds
Coated cutting tool
Graphical voice response system and method therefor
Apparatus and method for machining with cryogenically cooled oxide-containing ceramic cutting tools