UTP-9K

UTP-9K is a UAV aerial image and video dataset.

Files

Due to upload stability issues, the original dataset files are provided as 500MB split parts.

The original files are:

images.zip
clips.zip

After uploading, the repository structure is:

images/
  images.zip.part0000
  images.zip.part0001
  images.zip.part0002
  ...

clips/
  clips.zip.part0000
  clips.zip.part0001
  clips.zip.part0002
  ...

How to Recombine the Split Files

After downloading all split parts, users need to recombine them into the original ZIP files.

Windows PowerShell

Run the following commands in the dataset root directory.

Recombine images.zip:

$files = Get-ChildItem ".\images\images.zip.part*" | Sort-Object Name
$out = [System.IO.File]::OpenWrite(".\images.zip")
try {
    foreach ($f in $files) {
        $in = [System.IO.File]::OpenRead($f.FullName)
        try {
            $in.CopyTo($out)
        }
        finally {
            $in.Close()
        }
    }
}
finally {
    $out.Close()
}

Recombine clips.zip:

$files = Get-ChildItem ".\clips\clips.zip.part*" | Sort-Object Name
$out = [System.IO.File]::OpenWrite(".\clips.zip")
try {
    foreach ($f in $files) {
        $in = [System.IO.File]::OpenRead($f.FullName)
        try {
            $in.CopyTo($out)
        }
        finally {
            $in.Close()
        }
    }
}
finally {
    $out.Close()
}

After recombination, the dataset root directory should contain:

images.zip
clips.zip

Linux / macOS

Run the following commands in the dataset root directory:

cat images/images.zip.part* > images.zip
cat clips/clips.zip.part* > clips.zip

Notes

Please make sure all split parts are downloaded before recombining the ZIP files. Missing or incorrectly ordered parts may cause the restored ZIP files to be corrupted.