Patent ID: 8711931
Filing Date: 2014-04-29
Classification: H04N

Abstract:
1. A picture information coding device for performing a process of coding picture information using motion prediction and for outputting picture compression information, the device comprising: a memory management control operation command generation device that generates memory management control operation commands to manage pictures in a decoded picture buffer, wherein, in a case in which multiple-frame prediction is performed, the memory management control operation command generation device registers a reference B picture that exists between a picture and a P picture or I picture as a long-term reference picture using a memory management control operation command, places the reference B picture as the first in a reference picture list using a reference picture list reordering command when a B picture that exists between the P picture or I picture and the reference B picture is processed, sets the long-term reference picture in the decoded picture buffer to be a non-reference picture by setting a maximum value of a long-term frame index to [0] using a memory management control operation command when the P picture or I picture is processed, and performs random access from the I picture that is not an instantaneous decoding refresh picture.