<div dir="ltr">Thank you that is very helpful.<div><br></div><div>Please keep me informed if you find a way to download the dataset easily these days.</div><div><br></div><div>Kind regards,</div><div><br></div><div>Jim </div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, 21 Sept 2021 at 21:32, Roddy Collins <<a href="mailto:roddy.collins@kitware.com">roddy.collins@kitware.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div dir="ltr" class="gmail_attr"><div>Hi Jim--</div><div><br></div><div>Responses inline.</div><div><br></div>On Wed, Sep 15, 2021 at 8:11 AM Jim Keeting <<a href="mailto:jim.keeting@gmail.com" target="_blank">jim.keeting@gmail.com</a>> wrote:<br></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">1. I saw VIRAT Video Dataset Release 2.0/VIRAT Ground Dataset/annotations/<span style="white-space:pre-wrap">VIRAT_S_000003.viratdata.objects.txt has objects of type "0" what does this refer to, as the documentation suggests the objects types are 1-7?</span><div><br></div></div></blockquote><div><br></div><div>Having looked at the objects in question, they seem to be static boxes that attempt to mark out the background -- they roughly mark out the grass, asphalt, sidewalk, and building. My guess is that they were a preliminary attempt at representing background classes that never came to fruition and were not removed from the dataset before release.<br></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div></div><div><span style="white-space:pre-wrap">2. For a given event or frame, are all people always labelled in the scene, or just a subselection relevant to the event? Was wondering if there is any way to select frames where all people have been annotated.</span></div></div></blockquote><div><br></div><div>The VIRAT ground camera data has been annotated twice: once in 2010 as part of the original CVPR paper, and again in 2017 for the IARPA DIVA program. In the original CVPR paper, moving objects were tracked, and associated with any of the VIRAT activities that occurred during motion. (In other words, they might be annotated as movers without being associated with other activities.) If they were stationary, they were not annotated. These are the annotations in the Release 2.0 directory.<br></div><div><br></div><div>For the DIVA effort (on VIRAT data), persons and vehicles were tracked all the time, whether or not they were moving or stationary. These annotations are available at <a href="https://gitlab.kitware.com/viratdata/viratannotations" target="_blank">https://gitlab.kitware.com/viratdata/viratannotations</a> . (Note that this annotation approach differs from the DIVA annotations on the MEVA data at <a href="http://mevadata.org" target="_blank">mevadata.org</a>, where we only annotated actors who were participating in defined DIVA events.)<br></div><div></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div><span style="white-space:pre-wrap"><br></span></div><div><span style="white-space:pre-wrap">3. To download the dataset I tried the MIDAS software and server with</span>: <a href="http://midas.kitware.com/api/rest" target="_blank">http://midas.kitware.com/api/rest</a> URL but it rejected authentication despite having an account. I can download via the website at <a href="https://data.kitware.com/" target="_blank">https://data.kitware.com/</a> but cannot find an easy way to download the whole dataset as if one downloads the whole connection it results in the connection terminating before the download is completed or a corrupted .7z archive, whereas I can manually download them one-by-one but there are too many items to download one by one.</div><div><br></div></div></blockquote><div><br></div><div>I believe this is due to the mechanisms ensuring downloaders have agreed to the ground camera data usage agreement. One potential workaround is to create and upload fewer-but-larger tarballs of the videos; I'll look into this and update when I have more information.</div><div><br></div><div>I hope this helps; let us know if you have any other questions.</div><div><br></div><div>Thanks</div><div>-Roddy</div><div><br></div><div>--</div><div>Roddy Collins, PhD</div><div>Principal Engineer, Kitware Inc.<br></div><div>1712 Route 9, Suite 300, Clifton Park, NY 12065</div><div>(518) 881-4918 || <a href="mailto:roddy.collins@kitware.com" target="_blank">roddy.collins@kitware.com</a></div><div><br></div></div></div>
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