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
Satellite communication network
Synthesizing VHDL multiple wait FSMS into RT level FSMS by preprocessing
Method and apparatus for encoding and decoding video based on first sub-pixel unit and second sub-pixel unit
Method and system for acquiring support capability of mobile terminal by base station side system
Transfer device and image forming apparatus including regulation member
Sperm factor sequences
Methods and systems for dynamic spectrum arbitrage
  Randomly Featured Patents
Bicyclic nitrogen heterocycles
Method for manufacturing a rail for use in a linear motion rolling contact guide unit
Process for making fine diameter ceramic fibers using a moldable ceramic composition
Method and system for preparing grayscale image files for highlight printing on a four color printer
Pellicle frame and lithographic pellicle
Carton blank folding and gluing system
Pitch detecting device
Delivery system for biological component
Tango II soil block press
Process for the production of substituted benzaldehydes