Aware, Inc.

David Pollen

Howard L Resnikoff

Wayne M Lawton

David C Linden

Ramesh A Gopinath

An image coding apparatus and method are disclosed. The method and apparatus are applicable to coding any array of arbitrary dimension. The apparatus utilizes FIR filters which generate three or more sets of coefficients from linear arrays generated from the array being coded. Each set of coefficients represents spatial frequency information of different frequencies. The filters utilize coefficient sets which are preferrably orthogonal.

Image coding apparatus and method utilizing separable transformations

A method for coding an image or other two-dimensional data array to provide a sequence of images having differing spatial frequency content is disclosed. The method generates the output images by taking weighted sums of the pixels in the input image. The weights are sets of two-dimensional irreducible scaling and wavelet coefficients.

Method and apparatus for coding an image

A system comprising apparatuses and methods for encoding and decoding spread spectrum signals is disclosed. Signals are encoded by modulating numerical sequences selected from an orthonormal basis of numerical sequences to provide channel coding. The modulated sequences are then combined to form an encoded signal. Because of the orthonormal character of the sequences, the encoded signal may be easily decoded using a matched filter. A method for generating long sequences from the product of shorter sequences is also disclosed.

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Lexington, MA, United States of America

David Pollen