Frame grabber

A anatomy affliction is an cyberbanking accessory that captures individual, agenda still frames from an analog video arresting or a agenda video stream. It is usually active as a basic of a computer eyes system, in which video frames are captured in agenda anatomy and again displayed, stored or transmitted in raw or aeroembolism agenda form. Historically, anatomy grabbers were the absolute way to interface cameras to PC's. This has essentially afflicted in contempo years as absolute camera access via USB, Ethernet and IEEE 1394 ("FireWire") interfaces accept become prevalent.

Early anatomy grabbers had alone abundant anamnesis to access (i.e., "grab") and abundance a individual digitized video frame, appropriately the name. Modern anatomy grabbers about can abundance assorted frames and abbreviate them in absolute time application algorithms such as MPEG2 and JPEG. Anatomy grabbers that accomplish compression on the video frames are referred to as "Active Anatomy Grabbers," while anatomy grabbers that artlessly abduction raw video abstracts are alleged "Passive Anatomy Grabbers." Technological demands in fields such as alarm acquisition, accomplishment and limited advice accept led to the development of anatomy grabbers with the adeptness to abduction images at top anatomy ante and resolutions.