System and Methods for Generating Scene Stabilized Metadata

摘要

Methods and systems for generating and applying scene-stable metadata for a video data stream are disclosed herein. A video data stream is divided or partitioned into scenes and a first set of metadata may be generated for a given scene of video data. The first set of metadata may be any known metadata as a desired function of video content (e.g., luminance). The first set of metadata may be generated on a frame-by-frame basis. In one example, scene-stable metadata may be generated that may be different from the first set of metadata for the scene. The scene-stable metadata may be generated by monitoring a desired feature with the scene and may be used to keep the desired feature within an acceptable range of values. This may help to avoid noticeable and possibly objectionably visual artifacts upon rendering the video data.

主权项

1. A method for using scene-stable metadata in a video data stream, the method comprising:
dividing the video data stream into a set of scenes; generating a first metadata associated with a first scene within the set of scenes, wherein generating the first metadata associated with the first scene within the set of scenes comprises:
computing at least one of a min, mid and max luminance for each frame in a scene; andcomputing at least one of a min, mid and max luminance for the scene; generating scene stable metadata; and associating the scene stable metadata with said first scene.