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
Electronic device
Load balanced profiling
Methods and systems for predicting an optical fiber performance parameter
Compositions for drug administration
Automated service level management of applications in cloud computing environment
Utility pad with integrated security cage
Liquid-cooled resistor device
  Randomly Featured Patents
Device for electronic control of an actuator of transmission dog clutches
Using a telephony application server for call control with a voice server
Method and apparatus for mitigating the effects of narrowband interfering signals in a GPS receiver
Gun sight system
Wrench tool having magnet connected thereto
Removable mount for mounting an electronic system component on a forklift
In-cylinder injection type spark ignition internal combustion engine
Harmonic laser
Printer device and method
Therapeutic intervention in a genetic disease in an individual by modifying expression of an aberrantly or abnormally expressed gene