University of California

Telsy Elettronica E Telecomunicazioni Spa

Fabrizio Vacca

Truong Q Nguyen

Mainak Biswas

Andrea Molino

Fabrizio Partescano

Maria Spicciola

Sandro Cuciz

Giannantonio Montorselli

Oliviero Testa

Andrea Carron

Guglielmo Morgari

A video codec of a preferred embodiment is suitable for implementation on a variety of platforms, including platforms where devices require both encoding and decoding engines. Various features of preferred embodiment codecs reduce complexity for operations such as motion determination. Channel resources are allocated in preferred embodiments unequally, with an allocation being determined based upon channel conditions and the error level in a frame being encoded. A decoder of a preferred embodiment, provided with an error frame and motion vector information may conduct decoding with motion compensation. In an example encoder of the invention, a motion estimator identifies motion vectors using a phase plane correlation technique based on phase quantization, where the phase difference between the Fourier transformed version of blocks in a reference frame and a current frame is estimated by dividing the complex plane into sectors and assigning the Fourier domain difference to the sectors.

Video encoding methods and devices

Growing community of inventors

Rivarolo Canavese, Italy

Fabrizio Vacca