by Colin McIntosh, The Cambridge English Dictionary is constantly being updated and expanded to reflect the interests of our users. One area of particular interest to our users is that of English Language Teaching (ELT), and a number of ELT terms have recently been added to the dictionary.y Colin McIntosh, The Cambridge English Dictionary is constantly being updated and expanded to reflect the interests of our users. One area of particular interest to our users is that of English Language Teaching (ELT), and a number of ELT terms have recently been added to the dictionary.
A diode is a one-way âvalveâ for electric current, analogous to a check valve for those familiar with plumbing and hydraulic systems. Ideally, a diode provides unimpeded flow for current in one direction (little or no resistance), but prevents flow in the other direction (infinite resistance).
Optical flow is the pattern of apparent motion of image objects between two consecutive frames caused by the movemement of object or camera. It is 2D vector field where each vector is a displacement vector showing the movement of points from first frame to second.ptical flow is the pattern of apparent motion of image objects between two consecutive frames caused by the movemement of object or camera. It is 2D vector field where each vector is a displacement vector showing the movement of points from first frame to second.