The S/N ratio of Engineering stream as audio and video senses in biological camera and physical camera

Abstract

The unit of illumination light emitting intensity from an object on surface area is lux, which is some quantity of candles light at certain distance on surface area falling. The illumination luminance can be expressed as logarithmic ratio of two signal quantities as power, voltage, current at log scale applied. These can be in terms of Decibel gain or loss on 10 base and 20 base log scale. The audio usually in dB and video usually on dB of sender and receiver object. Some visible images seen from human eye in 30dB to 120 dB as in range  and audio signal ranges from 15-15000 Hz and some many more images are invisible to human eye can be seen from IR thermal cameras.  This will be from infrared radiations. The amount of temperature can be emitting on sensor that captures reeds on monitor recorder. This paper is mainly focus on ideas salient features, ranges capacity of audio and video senses in terms of dB signal to noise ratio S/N and many more applicable to management streams. The best biological camera is human eye. Whatever human can’t see those images can see some birds and animals. In birds example will be taken as eagle. Angle of lenses usually taken as 50-75 degrees and some ranges. Whereas biological cameras as eye some living species will see angle around 360 degrees. Some aquatic species will see beyond angle 360 degrees.