US Patent Application 17930335. SYSTEM AND METHOD FOR ADAPTIVE DISCRETE COSINE TRANSFORM (DCT) NOISE FILTERING FOR DIGITAL IMAGES simplified abstract
Contents
SYSTEM AND METHOD FOR ADAPTIVE DISCRETE COSINE TRANSFORM (DCT) NOISE FILTERING FOR DIGITAL IMAGES
Organization Name
Inventor(s)
Zeeshan Nadir of Allen TX (US)
Hamid R. Sheikh of Allen TX (US)
John W. Glotzbach of Allen TX (US)
SYSTEM AND METHOD FOR ADAPTIVE DISCRETE COSINE TRANSFORM (DCT) NOISE FILTERING FOR DIGITAL IMAGES - A simplified explanation of the abstract
- This abstract for appeared for US patent application number 17930335 Titled 'SYSTEM AND METHOD FOR ADAPTIVE DISCRETE COSINE TRANSFORM (DCT) NOISE FILTERING FOR DIGITAL IMAGES'
Simplified Explanation
This method involves dividing an image into smaller overlapping patches and analyzing the content of each patch using a mathematical transform technique to classify it into one or more classes. The patches are then filtered to reduce noise by suppressing certain coefficients based on the class they belong to. Finally, the filtered patches are reconstructed to form the output image.
Original Abstract Submitted
A method includes dividing an image into overlapping image patches each having a specified size. The method also includes analyzing content of each image patch using a mathematical transform technique to classify each image patch into at least one class. The method further includes filtering each image patch for noise suppression by suppressing one or more transform coefficients of the image patch. An amount of suppression for each of the one or more transform coefficients is selected according to the at least one class of the image patch. In addition, the method includes reconstructing the filtered image patches into an output image.
