US Patent 9538180 Motion vector prediction in video coding

During a process to derive an inter-view predicted motion vector candidate (IPMVC) for an Advanced Motion Vector Prediction (AMVP) candidate list, a video coder determines, based on a disparity vector of a current prediction unit (PU), a reference PU for the current PU. Furthermore, when a first reference picture of the reference PU has the same picture order count (POC) value as a target reference picture of the current PU, the video coder determines an IPMVC based on a first motion vector of the reference PU. Otherwise, when a second reference picture of the reference PU has the same POC value as the target reference picture of the current PU, the video coder determines the IPMVC based on a second motion vector of the reference PU.