General Dynamics Information Technology, Inc.

Other

Ac Capital Management, Inc.

Joel A Rosiene

Truong Q Nguyen

James B Perkins

Barry E Mapen

Alexander B Lerman

An opto-electonic video compression system is disclosed including a lens element for transmitting light of an image and having one or more lenses, each lens having a predetermined focal length. A sensor array includes a first sensor for receiving focused light from the lens element and a second for receiving defocused light from the lens element, wherein the first sensor includes X.times.Y pixels and samples the focused light at each of the X.times.Y pixels, and the second sensor includes X/2.times.Y/2 pixels and samples the defocused light at each of the X/2.times.Y/2 pixels. An electronic differencing element in communication with the first and second sensor is also included for differencing the coefficients of co-located pixels.

Opto-electronic video compression system

A method and apparatus is disclosed for efficiently encoding data representing a video image, thereby reducing the amount of data that must be transferred to a decoder. The method includes transforming data sets utilizing a tensor product wavelet transform which is capable of transmitting remainders from one subband to another. Collections of subbands, in macro-block form, are weighted, detected, and ranked enabling prioritization of the transformed data. A motion compensation technique is performed on the subband data producing motion vectors and prediction errors which are positionally encoded into bit stream packets for transmittal to the decoder. Subband macro-blocks and subband blocks which are equal to zero are identified as such in the bit stream packets to further reduce the amount of data that must be transferred to the decoder.

Apparatus and method for compressing video information

In an apparatus and method for image/video enhancement, pre-processing and post-processing techniques are employed to effectively modify the transforms used in a fixed, standardized data compression coder. In this manner, alternative transforms, for example overlapping-basis-type transforms, are made to be applicable to, and compatible with, various data compression standards, thereby improving system performance.

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Colchester, CT, United States of America

Joel A Rosiene