judder


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judder

Informal chiefly Brit
abnormal vibration in a mechanical system, esp due to grabbing between friction surfaces, as in the clutch of a motor vehicle

judder

A shaking or wobbling effect in a video image. Judder is often caused by the conversion of a 24 frames-per-second (fps) movie to a 30 or 60 fps video format, or when viewing 24 fps content on a 60 Hz monitor. See telecine, flicker and adaptive sync.
References in periodicals archive ?
Ideally, frame-rate conversion should interpolate perfect frames, or at least appear sharp and smooth, and with no visible artifacts or judder at normal playback speeds.
Film judder in movie content creates annoying flicker on larger, high brightness-and-contrast displays.
Judder and motion blur are very visible on large screens, such as 32-inch and bigger.
Brakes can reveal symptoms of possible future serious situations -- they make noise, pull, judder (vibration) or feel soft.
At CES 2007, Let It Wave also introduces its advanced frame rate converter, which smartly computes HDTV intermediate frames and eliminates motion blur and flickers while removing film judder, an essential requirement for new 100 and 120Hz LCD and Plasma displays.
Other tips are included on how to avoid brake judder, brake disc warp and how to prevent brake squeal.
This is clutch judder and a warning that the clutch and flywheel need replacing.
Social worker Louise Lightbody, 27, also from Belfast, said: "I felt a judder and I could see smoke coming out of the wing next to my feet.
Philips HD movie judder cancellation technology increases the clarity of fast-moving HD images, especially film material originating from 24 frames per second, by estimating the motion of moving images and updating the data with additional information to produce the effect of clean, natural motion.
But then Davies drove into the back of him causing him to judder.
I had my back turned at the time but my girlfriend saw the ride judder and people flying off.
There's a good level of black tones and contrast, and although fast-moving scenes did present a little judder when viewing in 3D, the pair of glasses provided work very effectively.