The term "pixel jitter" belongs to the field of science jargon, specifically in the area of digital imaging and signal processing. Pixel jitter refers to the small, random fluctuations or movements in the position of individual pixels within a digital image or video frame. This can occur due to various factors such as camera or sensor instability, vibration, or noise in the signal. Pixel jitter can have negative effects on image quality and can be corrected through various techniques such as digital stabilization or filtering.