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Resolution calculator pixels security5/18/2023 ![]() Obviously, in these examples we have ignored the effects of lighting levels and visibility, which will always need to be taken into consideration when choosing your cameras. Detection: detection of activity within a scene.Observation: being able to interpret what is going on.Recognition: recognition of a known individual or object.Identification: identification of an unknown individual or object.What do we mean by the terminology used? In simple terms: Suitable for detection (note: down to 20 pixels / metre is also deemed suitable for the purpose detection) Suitable for observation and detectionĮxample image 7: 50 pixels / metre. Suitable for recognition, observation and detectionĮxample image 6: 100 pixels / metre. Suitable for recognition, observation and detectionĮxample image 5: 150 pixels / metre. Suitable for recognition, observation and detectionĮxample image 4: 200 pixels / metre. Suitable for recognition, observation and detectionĮxample image 3: 300 pixels / metre. Suitable for identification, recognition, observation and detectionĮxample image 2: 400 pixels / metre. The indicated purposefulness of each image is based on our own interpretation of what currently seems to be the accepted standards in the UK security industry.Įxample image 1: 500 pixels / metre. ![]() Please note there are no ‘official’ standards regarding pixel density and its relation to image purposefulness at time of writing. The images were taken with an Axis P1354-E camera at a resolution of 1280 x 960. The images below speak for themselves and don’t require much in the way of commentary. We are frequently being asked to give examples of what different pixel densities look like and we’d thought it would be useful to address this FAQ in a visual blog post. Useful examples of pixel density in network cameras ![]()
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