A preprocessor system (10) reduces random noise in video pixels by providing a memory (19) arranged to store first pixels processed during a first time period. A motion detector (300) responds to differences between the first pixels and second pixels processed during a second time period after the first time period to generate corrected motion signals. A first filter (100) generates first filtered values in response to the differences and the corrected motion signals. An impulse detector (244) generates control signals in response to detection of impulses, and an impulse reducer (250) generates second filtered pixel values in response to the first filtered values and the control signals.

 
Web www.patentalert.com

< Mobile video system

< Method of correcting image data picked up from photographic film

> Image comparison apparatus, image comparison method, and program for causing computer to execute image comparison

> Image processing apparatus and method, and storage medium therefor

~ 00263