1
Steven R Reuman: Method and apparatus for reduction of image data compression noise. Polaroid Corporation, Joseph Stecewycz, May 13, 1997: US05629778 (100 worldwide citation)

An image encoding/decoding apparatus for performing transform coding by a method in which blocking artifacts are suppressed or eliminated is disclosed in which encoded data, transmitted by the encoding apparatus, is converted into received image data terms which are subsequently overlap transformed ...


2
Steven R Reuman: Estimation of frequency dependence and grey-level dependence of noise in an image. Polaroid Corporation, Barry Gaiman, Donald F Mofford, May 30, 2000: US06069982 (37 worldwide citation)

Estimating spatial noise characteristics associated with an image acquired from an unknown digital image acquisition device is accomplished by a method, or system, which: provides predetermined default spatial noise characteristic information of the unknown digital image acquisition device; gathers ...


3
Steven R Reuman: Method and apparatus for estimating the spatial frequency response of a digital image acquisition system from the images it produces. Polaroid Corporation, February 10, 2004: US06690488 (8 worldwide citation)

Estimating the spatial frequency response (SFR) of an image acquisition system or device from its output images is accomplished by a image processing system and method thereof even when the original scene content cannot be carefully controlled as in the laboratory method. The image processing system ...


4
Steven R Reuman: Method and apparatus for reduction of image data compression noise. Polaroid, SHEN ZHAOKUN, July 9, 1997: CN96190494

An image encoding module and an image decoding module provide a method of performing transform coding of an original image source, where the method serves to suppress or eliminate blocking artifacts. Encoded data are transmitted by the image encoding module, converted into received data, and transfo ...