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_ (11).mp4

MPEG-4 is an International Standards Organization (ISO) specification that covers many aspects of multimedia presentation including compression, authoring and delivery. Although video compression and file container definition are two separate and independent entities of the MPEG-4 specification, many people incorrectly believe that the two are interchangeable. You can implement only portions of the MPEG-4 specification and remain compliant with the standard.The MPEG-4 file format, as defined by the MPEG-4 specification, contains MPEG-4 encoded video and Advanced Audio Coding (AAC)-encoded audio content. It typically uses the .mp4 extension. Windows Media Player does not support the playback of the .mp4 file format. You can play back .mp4 media files in Windows Media Player when you install DirectShow-compatible MPEG-4 decoder packs. DirectShow-compatible MPEG-4 decoder packs include the Ligos LSX-MPEG Player and the EnvivioTV.For more information about the Ligos LSX-MPEG Player, visit the following Ligos Web site:

_ (11).mp4

VAME is a general time series quantification method and while we used in our exemplary data pose tracking input from DeepLabCut, VAME works also with other pose estimation tools like SLEAP, DeepPoseKit or B-KinD14,15,54. In principle, other kinds of data such as a principal component time series of the video data or other sensory signals can be fed into the model. Throughout this protocol we will use the demonstration data that are available on the VAME GitHub page, which is a video of a freely moving mouse in an open-field arena (video-1.mp4) and the corresponding DLC file containing the coordinates of the virtual markers (video-1.csv). The dataset contains 29,967 frames. Note that it is possible to train a working VAME model with as little data as this to achieve good results in terms of motifs and latent space dynamics.

The VAME workflow starts by initializing a new project with the function vame.init_new_project(). It takes in four arguments; the project name, a path to the directory of the animal videos, a path that specifies the working directory where the project folder will be created, and a parameter that specifies if the used videos are .mp4 or .avi (Fig. 5, first gray box). The user needs to spell out the full path to a video such as /directory/to/your/video-1.mp4, otherwise the config.yaml file is not correctly initialized. This will create a folder with the project name and the creation date e.g., Your-VAME-Project-Jun15-2022. Within this folder four sub-folders will be created (data, model, results and videos) and a config.yaml file, see Fig. 6 for reference. Note that the video-1.csv, which contains the DLC pose estimation output, needs to be put manually into the pose_estimation folder.

  • Important Dates:Please check the TRECVID 2021 schedule for important dates.Run submission format:Participants will submit results against BBC Eastenders dataset in each run for all and only the 5 main characters chosen for the summarization task that year, within the time frame specified by NIST.

  • Each team is asked to submit 4 prioritized runs per task submission.

  • Submissions will comprise of the final automatically generated video summary for each topic, in .mp4 format, in addition to the xml container, as below, fully decribing the run submissions.

  • Video summaries must be named ___.mp4

  • For example, team SiriusCyberCo, submitting their secondrun, on the main task of unknown questions, for topic Heather, must name their submission: SiriusCyberCo_1_2_Heather.mp4SiriusCyberCo, submitting their fourthrun, on the subtask of known questions, for topic Heather, must name their submission: SiriusCyberCo_2_4_Heather.mp4

  • Please note: Only submissions which are valid when checked against the supplied DTDs will be accepted. You must check your submissionbefore submitting it. NIST reserves the right to reject any submission which does not parse correctly against the provided DTD(s). Variouscheckers exist, e.g., Xerces-J: java sax.Counter -v YourSubmision.xml.

  • Here for download (right click and choose "display page source" to see the entire file) is the DTD for summarization results of one run and a small example of what a site would send to NIST for evaluation.Please check your submission to see that it is well-formed

  • Please submit each run information in a separate file, named to make clear which team it is from. EACH file you submit should begin, as in the examplesubmission, with the DOCTYPE statement and a videoSummarizationResults element even if only one run is included:

  • Submissions will be transmitted to NIST using this password-protected webpageVSUM java Run Checker can be found at VSUM Active Directory. Please check files before submission.Queries:The following table specifies this years query characters, the time frame of the series (Start Shot # and End Shot #), links to images of the query characters, and the maximum length and number of shots for each run.

  • Important: All participating teams should submit 4 runs for each query, using the specified maximum number of shots for each run.

  • Character Max Jack Tanya Peggy Archie Start Shot # shot60_1 shot60_1 shot60_1 shot79_1 shot79_1 End Shot # shot70_2040 shot70_2040 shot70_2040 shot89_2036 shot89_2036 Images Images Images Images Images Images Max # Shots Run 1 5 5 5 5 5 Max Summary Length Run 1 50 seconds 50 seconds 50 seconds 50 seconds 50 seconds Max # Shots Run 2 10 10 10 10 10 Max Summary Length Run 2 100 seconds 100 seconds 100 seconds 100 seconds 100 seconds Max # Shots Run 3 15 15 15 15 15 Max Summary Length Run 3 150 seconds 150 seconds 150 seconds 150 seconds 150 seconds Max # Shots Run 4 20 20 20 20 20 Max Summary Length Run 4 200 seconds 200 seconds 200 seconds 200 seconds 200 seconds Sub Task - Questions Jack: What happens when police break in the door of Jack and Tanya's home?

  • Where are Max and Jack during the voilent confrontation between them when a gun is drawn?

  • Who does Jack offer to pay in order to withdraw their statement to the police?

  • Why is Jack a suspect in the hit and run on Max?

  • What does Jack reveal to Tanya about his dodgy past?

  • Max: What were the cause of Max's serious injuries which left him in hospital?

  • What is/was the relationship between Max and Tanya?

  • What kind of weapon does Max obtain from Phil?

  • Where are Max and Jack during the voilent confrontation between them when a gun is drawn?

  • Who is responsible, or who does Max believe is responsible, for the serious injuries which left him in hospital?

  • Tanya: What does Tanya reveal to the police while being interviewed at the station?

  • What is/was the relationship between Max and Tanya?

  • What does Jack reveal to Tanya about his dodgy past?

  • What does Tanya discover in the sink and on Jack's clothes?

  • What big move were Tanya and Jack planning for the future?

  • Archie: What happens when Phil throws Archie in to a pit?

  • What happens after Danielle reveals to Archie that Ronnie is her mother?

  • Where do Peggy and Archie get married?

  • What happens when Archie arrives at the pub after Peggy invited him?

  • What happens when Archie is kidnapped?

  • Peggy: Who does Peggy ask to kill Archie?

  • Where do Peggy and Archie get married?

  • Show one of the challenges which Peggy faces in her election run.

  • What does Peggy overhear Archie saying, which causes their marriage to be over?

  • What is Janine doing to irritate or anger Peggy?

  • Evaluation:In 2021, all submitted video summaries will be evaluated by assessors at Dublin City University.

  • A set of questions for each summary will be diseminated to assessors, but not to participants, for evaluation of summary content.

  • Summaries are also evaluated according to tempo, contextuality, and redundancy of generated video summaries:

  • Estimate the Tempo and Rhythm of this video summary, on a Likert scale of 1 - 7. High is best. Tempo/Rhythm Defined as: How well do the video shots flow together? Do shots cut mid-sentence (indicating poor tempo/rhythm)? Do they flow together nicely so it wouldn't be obvious that this is an automatically generated summary (high tempo/rhythm)? Estimate the Contextuality provided by this video summary, on a Likert scale of 1 - 7. High is best. Contextuality Defined as: Does the content provide the circumstances that form the setting for an event, statement, or idea, and in terms of which it can be fully understood and assessed? (High is best)

  • Estimate the level of Redundancy in this video summary, on a Likert scale of 1 - 7. Low is best. Redundancy Defined as: Does the video contain content considered to be unnecessary or superfluous? (Low is best)

  • Measures:Scoring measures for summaries will be calculated from the content based questions and also from the tempo, contextuality, and redundancy based Likert scale estimates described above.

  • Important notesThe BBC requires all VSUM task participants to fill, sign and submit a renewal data License agreement in order to use the Eastenders data. That means that even if a past participant has a copy of the data, the team must submit a renewal License form before any submission runs can be accepted and evaluated.

  • No human preknowledge to the closed world of the Eastenders dataset is allowed to be used to filter content. Any filteration methods should all be automatic without fine tuning based on the Eastenders dataset human knowledge.

  • The usage of the included xml transcripts' files are limited to only the transcripted text and not to any other metadata (or xml) attributes (e.g. color of text, etc).

  • Open Issues:BBC Eastenders data License is now available from the BBC [RESOLVED]



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