phase contrast

基本解釋

This "phase contrast" signal gives much clearer and detailed results.
這種“相差”信號(hào)提供更為清晰和詳細(xì)的結(jié)果。
The resolution of Darkfield and Phase Contrast Microscopy is up to 10-500A.
暗視場(chǎng)及相襯顯微術(shù)的分辨率可達(dá)10～500（?）
A double-blind crossover design was used to compare the performance of the shake test conducted by trained health-care workers (HCWs) with that of phase contrast microscopy as a “gold standard”.
經(jīng)過(guò)培訓(xùn)的衛(wèi)生工作者利用雙盲交叉法對(duì)震蕩試驗(yàn)和被視為“黃金標(biāo)準(zhǔn)”的相襯顯微術(shù)的效果進(jìn)行對(duì)比。

In contrast,a light bulb has much more impact in the use phase, where it's using the energy, and where you can reduce that with more efficient lighting technologies,"

Even the advanced two-stage focusing system has made its way from the T4i, which utilizes both phase-difference and contrast AF in order to achieve focus more efficiently when capturing video.
ENGADGET: Canon EOS M mirrorless camera hands-on (video) Hands-on
The F900EXR automatically switches between Phase Detection AF and Contrast Detection AF depending on the subject and scene, guaranteeing superb ease-of-use and fast, accurate autofocus no matter what the setting or shooting conditions.
ENGADGET: Fujifilm launches alphabet soup of point-and-shoot, compact and bridge cameras
Photo Rumors hears the two shooters will switch to a newer, faster hybrid (both contrast and phase detection) focusing system that also includes Sony NEX-style manual focus peaking, which provides a rough visual guide as to when a subject is as sharp as possible.
ENGADGET: Fujifilm X20 and X100s details reportedly leak, put focus at center stage

相位對(duì)比
Cine Phase Contrast MR velocity: LVA (16.16±7.99)cm/s, RVA(15.72±9.92)cm/s; blood flow :LVA(66.63±45.23) ml/min, RVA(68.57±38.84) ml/min.
MR電影相位對(duì)比法測(cè)得病變組左右VA平均流速分別為(16.16±7.99)cm/s、(15.72±9.92)cm/s ,平均血流量分別為(66.63±45.23)ml/min、(68.57±38.84)ml/min。
位相襯度

相襯法
A differential phase contrast wave-front sensing system based on an optical addressed ferroelectric liquid crystal spatial light modulator (OA-FLCSLM) is introduced, different from the traditional phase contrast method which is highly sensitive to the wave-front tilt.
針對(duì)傳統(tǒng)相襯法對(duì)波前傾斜像差的高度敏感性,本文介紹了一種基于光尋址鐵電液晶空間光調(diào)制器的差分型相襯波前傳感系統(tǒng)。
相位襯度
相（位）襯
相襯