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  2. Wireless security camera - Wikipedia

    en.wikipedia.org/wiki/Wireless_security_camera

    Brick, concrete floors, and walls degrade signal strength. Trees that are in the line of sight of the wireless camera and receiver may also impact signal strength. The signal range also depends on whether there are competing signals using the same frequency as the camera. For example, signals from cordless phones or routers may affect signal ...

  3. The 8 Best Outdoor Security Cameras for Your Home - AOL

    www.aol.com/lifestyle/7-best-outdoor-security...

    Most cameras also rely on WiFi for connectivity, which means you may also need a WiFi extender if you aren’t able to get a good signal outside. And, while video quality may not be of utmost ...

  4. Camera auto-calibration - Wikipedia

    en.wikipedia.org/wiki/Camera_auto-calibration

    In the visual effects industry, camera auto-calibration is often part of the "Match Moving" process where a synthetic camera trajectory and intrinsic projection model are solved to reproject synthetic content into video. Camera auto-calibration is a form of sensor ego-structure discovery; the subjective effects of the sensor are separated from ...

  5. Blanking (video) - Wikipedia

    en.wikipedia.org/wiki/Blanking_(video)

    In analog video, blanking occurs between horizontal lines and between frames. In raster scan equipment, an image is built up by scanning an electron beam from left to right across a screen to produce a visible trace of one scan line, reducing the brightness of the beam to zero (horizontal blanking), moving it back as fast as possible to the left of the screen at a slightly lower position (the ...

  6. Home security - Wikipedia

    en.wikipedia.org/wiki/Home_security

    Surveillance cameras used in houses are IP cameras or closed circuit. IP cameras connect over the internet and stream to users’ phones using a Wi-Fi connection. Closed-circuit, or CCTV cameras, stream through wired or wireless links. [9] These cameras stream live footage to users, allowing them to watch for suspicious activity.

  7. Closed-circuit television - Wikipedia

    en.wikipedia.org/wiki/Closed-circuit_television

    In September 1968, Olean, New York, was the first city in the United States to install CCTV video cameras along its main business street in an effort to fight crime. [25] Marie Van Brittan Brown received a patent for the design of a CCTV-based home security system in 1969. (U.S. patent 3,482,037).

  8. Instant camera - Wikipedia

    en.wikipedia.org/wiki/Instant_camera

    The development of the film required the photographer pull two tabs, the second tab which pulled the positive/negative "sandwich" from the camera, where it developed outside the camera. If the temperature was below 15 °C (60 °F), the positive/negative "sandwich" was placed between two aluminum plates and placed either in the user's pocket or ...

  9. Electropolishing - Wikipedia

    en.wikipedia.org/wiki/Electropolishing

    Electropolishing, also known as electrochemical polishing, anodic polishing, or electrolytic polishing (especially in the metallography field), is an electrochemical process that removes material from a metallic workpiece, reducing the surface roughness by levelling micro-peaks and valleys, improving the surface finish.

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