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
Code scoring
Navigating a video, a transcript of a dialog, and a histogram
Online mortgage approval and settlement system and method therefor
Inventorying communication circuits
Receptor holding device
Systems and methods for adaptive scheduling of references to documents
Method and device for detecting an entrapment situation
  Randomly Featured Patents
Portable phone
Retaining device of computer data storage device
Safety device for firearms using removable magazines
Finger point bar code input device
Method of and system for liquefying a gas with low boiling temperature
IC receiving tray storage device and mounting apparatus for the same
S-handle for a torque-applying tool
Apparatus and method for displaying drive state of backlight in liquid crystal display device
Method of manufacturing semiconductor element
Method and system for producing dressing products of polymer fibres useful for covering moist wounds