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State of Environment in Norway: Noise (1651 words) |
 | Noise annoyance for road traffic increased by 5 per cent from 1999 to 2003, while there was a drop in noise levels from industry, aircraft and railways of respectively 6, 22 and 20 per cent. |
| Noise is one of the major remaining environmental problems in Norway, and one of those that affects the largest number of people. |
| Respondents described their annoyance due to noise on a scale from zero to one (annoyance score), where zero is not annoyed and one is the most severe annoyance, or by using a carefully selected modifier on the annoyance scale (a word that describes the level of annoyance). |
| System and method for reducing noise in images - Patent 6933983 (5947 words) |
| The noise n is determined by examining image content and differentiating between structures, such as lines and edges, pixels that are correlated with their immediate neighbours, and those that are not. |
| Noise reduction is applied by adaptive filtering using rules derived from a psycho-visual understanding of what is perceived as visually objectionable noise in an image scene. |
| Noise detected using different noise patterns is combined using a weighted sum of the magnitude differences for providing an aggregate histogram that reflects all different types of noise that is deemed important to measure. |
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