Motion smoothing attempts to reduce judder by increasing the TV’s frame rate in a process called frame or motion interpolation. That’s why sports, reality and game shows, and soap operas have smoother motion than 24Hz films. This appearance comes about because movies and a lot of prime-time TV shows are shot at a relatively slow 24 frames per second, or 24Hz.īy contrast, video is typically shot at 60Hz. Movies have a slightly stuttering effect, called judder, especially when the camera pans across a scene. But many companies tie these efforts to another technology called judder reduction, which is often referred to as motion smoothing. On its own, blur reduction is fine, even helpful. These techniques go by a number of names, including Auto Motion Plus (Samsung), Motionflow (Sony), and TruMotion (LG). TV manufacturers use various technologies to reduce motion blur, such as repeating frames or inserting black frames into the video signal. One issue with LCD-based TVs in particular is that the image can blur during fast-moving scenes, especially in action movies or sports.
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