公开(公告)号：US20140336800A1

公开(公告)日：2014-11-13

申请号：US14117576

申请日：2012-05-15

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Regunathan Radhakrishnan ,  Sevinc Bayram ,  Jeffrey Riedmiller

IPC: G10L19/018 ,  H04S5/00

CPC classification number: G10L19/018 ,  G10L19/008 ,  G10L25/06 ,  H04S3/02 ,  H04S5/005 ,  H04S2400/01

Abstract: A media signal is accessed, which has been generated with one or more first processing operations. The media signal includes one or more sets of artifacts, which respectively result from the one or more processing operations. One or more features are extracted from the accessed media signal. The extracted features each respectively correspond to the one or more artifact sets. Based on the extracted features, a conditional probability score and/or a heuristically based score is computed, which relates to the one or more first processing operations.

Abstract translation: 访问已经通过一个或多个第一处理操作生成的媒体信号。 媒体信号包括分别由一个或多个处理操作产生的一组或多组伪影。 从所访问的媒体信号中提取一个或多个特征。 所提取的特征分别对应于一个或多个伪像集。 基于提取的特征，计算与一个或多个第一处理操作有关的条件概率得分和/或启发式分数。