Apparatus and method for skipping fractional motion estimation in high efficiency video coding

摘要

An apparatus and method for skipping fractional motion estimation (FME) in high efficiency video coding (HEVC) are disclosed. The apparatus includes a current sum of absolute differences (SAD) acquisition unit, a redundancy determination unit, and a motion estimation skip unit. The SAD acquisition unit acquires the SAD from an integer motion estimation (IME) unit when the IME unit performs IME on a coding tree block (CTB). The redundancy determination unit determines whether or not the CTB is an estimated redundant block using the current SAD. The motion estimation skip unit provides an FME unit with an FME skip signal of the CTB depending on whether or the CTB is an estimated redundant block.

主权项

1. An apparatus for skipping fractional motion estimation (FME) in high efficiency video coding (HEVC), the apparatus comprising:
a sum of absolute differences (SAD) acquisition unit configured to acquire a current SAD from an integer motion estimation (IME) unit when the IME unit performs IME on a coding tree block (CTB); a redundancy determination unit configured to determine whether or not the CTB is an estimated redundant block using the current SAD, wherein the redundancy determination unit calculates a first calculated value using the current SAD and a first weight, calculates a second calculated value using a previous SAD acquired from a previous CTB and a second weight, and determines whether or not the CTB is an estimated redundant block depending on which of the first and second calculated values is larger; and a motion estimation skip unit configured to provide an FME unit with an FME skip signal of the CTB for skipping the FME in the HEVC depending on whether or not the CTB is an estimated redundant block.