frame grabber

      Frame grabber GudangMovies21 Rebahinxxi LK21

      A frame grabber is an electronic device that captures (i.e., "grabs") individual, digital still frames from an analog video signal or a digital video stream. It is usually employed as a component of a computer vision system, in which video frames are captured in digital form and then displayed, stored, transmitted, analyzed, or combinations of these.
      Historically, frame grabber expansion cards were the predominant way to interface cameras to PCs. Other interface methods have emerged since then, with frame grabbers (and in some cases, cameras with built-in frame grabbers) connecting to computers via interfaces such as USB, Ethernet and IEEE 1394 ("FireWire"). Early frame grabbers typically had only enough memory to store a single digitized video frame, whereas many modern frame grabbers can store multiple frames.
      Modern frame grabbers often are able to perform functions beyond capturing a single video input. For example, some devices capture audio in addition to video, and some devices provide, and concurrently capture frames from multiple video inputs. Other operations may be performed as well, such as deinterlacing, text or graphics overlay, image transformations (e.g., resizing, rotation, mirroring), and conversion to JPEG or other compressed image formats. To satisfy the technological demands of applications such as radar acquisition, manufacturing and remote guidance, some frame grabbers can capture images at high frame rates, high resolutions, or both.


      Circuitry



      Analog frame grabbers, which accept and process analog video signals, include these circuits:

      Input signal conditioner that buffers the analog video input signal to protect downstream circuitry
      Video decoder that converts SD analog video (e.g., NTSC, SECAM, PAL) or HD analog video (e.g., AHD, HD-TVI, HD-CVI) to a digital format
      Digital frame grabbers, which accept and process digital video streams, include these circuits:

      Digital video decoder that interfaces to and converts a specific type of digital video source, such as Camera Link, CoaXPress, DVI, GigE Vision, LVDS, or SDI
      Circuitry common to both analog and digital frame grabbers:

      Memory for storing the acquired image (i.e., a frame buffer)
      A bus interface through which a processor can control the acquisition and access the data
      General purpose I/O for triggering image acquisition or controlling external equipment


      Applications




      = Healthcare

      =
      Frame grabbers are used in medicine for many applications, including telenursing and remote guidance. In situations where an expert at another location needs to be consulted, frame grabbers capture the image or video from the appropriate medical equipment, so it can be sent digitally to the distant expert.


      = Manufacturing

      =
      "Pick and place" machines are often used to mount electronic components on circuit boards during the circuit board assembly process. Such machines use one or more cameras to monitor the robotics that places the components. Each camera is paired with a frame grabber that digitizes the analog video, thus converting the video to a form that can be processed by the machine software.


      = Network Security

      =
      Frame grabbers may be used in security applications. For example, when a potential breach of security is detected, a frame grabber captures an image or a sequence of images, and then the images are transmitted across a digital network where they are recorded and viewed by security personnel.


      = Personal Use

      =
      In recent years with the rise of personal video recorders like camcorders, mobile phones, etc. video and photo applications have gained ascending prominence. Frame grabbing is becoming very popular on these devices.


      = Astronomy & Astrophotography

      =
      Amateur astronomers and astrophotographers use frame grabbers when using analog "low light" cameras for live image display and internet video broadcasting of celestial objects. Frame grabbers are essential to connect the analog cameras used in this application to the computers that store or process the images.


      See also


      Tweening
      Video capture
      TV tuner card
      Automated Imaging Association (AIA)


      References

    Kata Kunci Pencarian: frame grabber

    frame grabberframe grabber from videoframe grabber onlineframe grabber unitframe grabber appframe grabber rplidarframe grabber iphoneframe grabber video cardframe grabber boardframe grabber card Search Results

    frame grabber

    Daftar Isi

    Frame grabber - Wikipedia

    A frame grabber is an electronic device that captures (i.e., "grabs") individual, digital still frames from an analog video signal or a digital video stream.

    Video Frame Extractor

    Online video frame extraction tool that doesn't require file upload to any server.

    Video Frame Extractor - Extract frames from video online for free

    Free online tool to extract frames from video. Convert video to image sequence easily with our browser-based video frame extractor. No download required.

    What is a frame grabber? - HD Vision Systems

    Nov 26, 2020 · What are frame grabbers? What is their function? When and why should you use frame grabbers? Learn everything now!

    Frame Grabbers - Teledyne DALSA

    Frame Grabbers Industry-leading digital frame grabber boards See our complete Frame Grabbers product lineup along with the best from our Teledyne sister companies on the new Teledyne …

    Frame grabber - Epiphan video

    Epiphan frame grabbers let you capture video on your computer from nearly any source in resolutions up to 4K DCI and frame rates up to 60 fps. Record it, share it, stream it, teach it, …

    What Is A Frame Grabber? – Everything You Need To Know

    A frame grabber is a device that captures video at fluid, high frame rates. It is a piece of hardware, software, or a combination of both that allows you to record video at a higher rate than your …

    EPIX® Frame Grabbers - High-Speed Video Frame Grabber

    Sep 14, 2023 · With unbeatable image quality and speed, most EPIX frame grabbers support your camera’s maximum directional resolution, frame rate, and bit depth. Our high-speed video …

    Frame Grabbers Control the Vision System | Basler AG

    Frame grabbers are one of the key components for robust, high-speed image acquisition and signal control. At the core of the image acquisition boards are FPGA processors that ensure …

    Frame grabbers for machine vision

    BitFlow has a frame grabber model for almost every camera manufactured. Whether your camera is CoaXPress, Camera Link, Differential (LVDS or RS422). Select from the current options below.