![]() ![]() These devices all grab the VGA signal and have the ability to save it as a series of pictures (JPEG, PNG, etc) or a video file (AVI, MPEG) on the target computer. To date, Epiphan Systems is the only manufacturer of high quality compact external USB-based VGA frame grabbers.ĮMS Imaging, Foresight Imaging, Unigraf, PixelSmart and Ncast all manufacture internal PCI-based solutions. There are two types of VGA and DVI frame grabbers in existence: external (over USB) and internal (over PCI). These devices are commonly referred to as frame grabbers, as they “grab” an analog VGA signal and convert it into a digital USB stream that can be interpreted by a computer. Prices range from $300 to $3000, depending on the manufacturer and desired quality. While the low quality VGA-to-video capture solution is satisfactory for some, more expensive solutions exist for high quality, high frame rate, and high resolution capture. All of these solutions would yield marginal quality with fairly low resolution of 640×480, but at a price point close to $100. In fact, since you have a standard video signal, you may just use a standard VCR (video cassette recorder) or a DVD DVR (digital video recorder) to record the output. Alternatively, you may use an external capture device such as those from Pinnacle. You may then use any video card, such as those from Nvidia or ATI with video-in to record the VGA signal (now converted into an analog video stream) onto your computer. This device takes the VGA signal and converts it into a video signal (RCA, component, or S-Video) which you can view on your television. We will review wide range of solutions from average quality home use consumer devices up to high quality external frame grabbers that are suitable for recording VGA signals for educational, legal, industrial, commercial and military use.įor a low-priced solution with marginal quality and frame rate, one can use a VGA-to-Video Converter. Devices Used for VGA Captureĭepending on the price range, there are many ways that one can capture a VGA signal. Internal PCI device that allows for video capture. Also referred to as framegrabber, VGA grabber, VGA capture card, VGA capture device, RGB capture card, and others.Ĭapture Card – Similar to frame grabber. HDMI – High-Definition Multimedia Interface: Connector interface for transferring digital video signal, audio signal, and has support for copy protection.įrame Grabber – Device used for capturing a video stream and transforming it into a format that is readable by a PC. Also known as D-SUB and RGB.ĭVI – Digital Video Interface: Connector interface for transferring digital video signal. VGA – Video Graphics Array: Connector interface for transferring analog video signal. ![]() This article will thoroughly examine and evaluate methods that can be used to capturing the video signal from all these devices. VGA is used in a variety of computerized equipment, including PCs, servers, projectors, radars, medical equipment, scientific equipment, ATMs, and more. Many solutions exist for the capture of VGA signals ranging from simple inexpensive solutions to high-quality diagnostic capture devices. The main advantage of having a VGA capture solution over a “screencasting” or screen recording software is that no software must be installed on the source machine, and the captured signal is a 1:1 copy of the VGA or DVI output. Once the VGA signal is captured, one can broadcast it over the web, archive it for later viewing, or even edit the captured images/video. This article will explore methods used to capture VGA and DVI signals from sources such as PCs, servers, medical devices and embedded machines. ![]()
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