Heuristic detection of potential digital media artifacts and defects in digital media assets

Number: 11553211
Published: 2023-01-10
Filed: 2013-01-03
Assignee: Disney Enterprises, Inc.
Inventors: Liao; Kevin et al.
CPC: H04N19/89; H04N17/004; H04N19/513
Verdict: Set aside media QC/artifact detection, business
Source: Google Patents · FreePatentsOnline

Abstract

A method, comprises monitoring a encoding process of a source video file performed by an encoder; obtaining an encoding decision parameter used to encode a picture of the source video file during the encoding process; comparing the encoding decision parameter to a threshold; based on the step of comparing, identifying the picture as a candidate picture for a visual defect or coding error; and storing a timestamp of the candidate picture.

Background

TECHNICAL FIELD (1) The present disclosure relates generally to digital media encoding, and more particularly, some embodiments relate to systems and methods for detecting and marking artifacts or defects in encoded digital media files. DESCRIPTION OF THE RELATED ART (2) Due to the growing number of digital media distribution platforms that are available, a single piece of media content, such as a movie, is often digitized or transcoded into different formats and bit-rates. Before these new, compressed assets can be used for distribution, their quality and integrity need to be verified and must pass a defined threshold of perceived quality. BRIEF SUMMARY OF THE DISCLOSURE (3) Some implementations monitor the quantification processes that occur during encoding a digital media file. Based on parameters that depend on the change between samples of the digital media file, implementations detect the location of possible artifacts or defects in the outputted encoded media file. Some implementations detect a possible artifact or defect by comparing the parameter to a threshold. The timecode locations of the possible artifacts or defects may be stored with the encoded media file, for example, as bookmarks or chapter marks as provided for in an applicable digital media standard. (4) Other features and aspects of the disclosure will become apparent from the following detailed description, taken in conjunction with the accompanying drawings, which illustrate, by way of example, the feat

Claims

1. A method of encoding a video content including a plurality of video frames having a first frame and a second frame preceding the first frame, the method comprising: monitoring an encoding process of the first frame that generates an encoded first frame; obtaining, during encoding of the first frame, a first amount of change between the first frame and the second frame; comparing the first amount of change between the first frame and the second frame with a threshold to determine whether the first frame is likely to contain a first defect; in response to determining that comparing indicates that the first frame is likely to contain the first defect, obtaining a first time code associated with the first frame; and storing the first time code in an output file. || 9. A system for encoding a video content including a plurality of video frames having a first frame and a second frame preceding the first frame, the system comprising: a processor: and a memory; wherein the processor is configured to: monitor an encoding process of the first frame that generates an encoded first frame; obtain, during encoding of the first frame, a first amount of change between the first frame and the second frame; compare the first amount of change between the first frame and the second frame with a threshold to determine whether the first frame is likely to contain a first defect; in response to determining that comparing indicates that the first frame is likely to contain the first defect, obtain a first time code associated with the first frame; and store the first time code in an output file.