METHOD AND APPARATUS FOR PHASE UNWRAPPING

• Main Authors: ZONG JINGUANG, YE YONGQUAN
• Format: Patent
• Language: Chinese; English
• Published: 07.08.2018
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention discloses a method and apparatus for phase unwrapping. The method comprises steps: obtaining a plurality of echo signals representing a subject, wherein the plurality of echo signals being formed at a plurality of different echo times; generating a plurality of phase wrapped images based on the plurality of echo signals, each phase wrapped image comprising one or more first wrapped values; generating a phase difference map based on the plurality of phase wrapped images, the phase difference map comprising one or more second wrapped values; generating an unwrapped phase differencemap by unwrapping the one or more second wrapped values in the phase difference map; determining a first field distribution map based on the unwrapped phase difference map; and generating a pluralityof unwrapped phase images by unwrapping the one or more first wrapped values in each phase wrapped image based on the first field distribution map. 本申请公开了种相位反卷折方法与设备。方法可包括：获取对象的多个回波信号，多个回波信号在不同回波时间内产生；根据多个回波信号产生多个卷折相位图，每个卷折相位