mid-15c. (implied in speckled), probably related to Old English specca "small spot, speck" (see speck) or from a related Middle Dutch or Middle High German word. Related: Speckled; speckling. The noun is first attested mid-15c.
实用例句
1. For example, in holographic imagery the speckle pattern corresponds to troublesome background noise.
例如, 在全息照相中,斑纹图样相当于讨厌的背景噪声.
来自辞典例句
2. Laser speckle interferometry is a new technique in latter - day optics.
激光散斑干涉法是近代光学的一项新技术.
来自互联网
3. Speckle noise can be eliminated by nonlinear filter designed by wavelet transform.
小波非线性滤波器还可消除散斑噪声.
来自互联网
4. Star on one ^ s body speckle be really Lei Ren!
明星身上的斑真是雷人!
来自互联网
5. Objective To establish a novel speckle tracking algorithm for estimating myocardial motion.