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  2. Camera trap - Wikipedia

    en.wikipedia.org/wiki/Camera_trap

    There are non-triggered cameras that either run continuously or take pictures at specific time intervals. The more common ones are the advanced cameras that are triggered only after sensing movement and/or a heat signature to increase the chances of capturing a useful image. Infrared beams can also be used to trigger the camera.

  3. Day and night camera - Wikipedia

    en.wikipedia.org/wiki/Day_and_night_camera

    A day and night camera is a security camera that can see the picture during the day hours, when there is enough sunlight, and during the night in total darkness or minimum illumination. A day and night camera has special lenses that allow infrared emission produced by infrared LEDs and reflected from objects to go through and reach a CCD or ...

  4. Optical wireless communications - Wikipedia

    en.wikipedia.org/wiki/Optical_Wireless...

    In January 2015, IEEE 802.15 formed a Task Group to write a revision to IEEE 802.15.7-2011 that accommodates infrared and near ultraviolet wavelengths, in addition to visible light, and adds options such as Optical Camera Communications and LiFi. [12]

  5. Thermography - Wikipedia

    en.wikipedia.org/wiki/Thermography

    Some infrared cameras marketed as night vision are sensitive to near-infrared just beyond the visual spectrum, and can see emitted or reflected near-infrared in complete visual darkness. However, these are not usually used for thermography due to the high equivalent black-body temperature required, but are instead used with active near-IR ...

  6. Night vision - Wikipedia

    en.wikipedia.org/wiki/Night_vision

    Active infrared night-vision combines infrared illumination of spectral range 700–1,000 nm (just over the visible spectrum of the human eye) with CCD cameras sensitive to this light. The resulting scene, which is apparently dark to a human observer, appears as a monochrome image on a normal display device. [ 15 ]

  7. Full-spectrum photography - Wikipedia

    en.wikipedia.org/wiki/Full-spectrum_photography

    Little or no shortwave ultraviolet light may be recorded unless selective filtering is applied to cut some or all of the infrared light. The longwave infrared light may also wash out a considerable amount of the visible light in the blue and green areas in a full spectrum photograph. Similarly if infrared light is entirely blocked, the visible ...