2.5 Media management

image


Projects are the entry point for your media in WildTrax. But the information for each recording and image set is also saved and becomes accessible in the organization in the Recordings and Image Sets tabs. Since projects belong to organizations, administrators can benefit from:

 

  • Aggregating media to encapsulate the organizations' total survey efforts
  • Storing and managing the media to summarize its use in the system
  • Re-utilizing media for other purposes 

 

An image set in WildTrax is defined as all the images taken at a location between two visits. Whereas a recording is a single audio file.

 

You’ll immediately notice that the summaries for each media tab in the organization is different. Why is this? A few reasons:

  • Data collection

     

    • Cameras can be set to motion capture and / or time-lapse, i.e. record the environment at set times
    • ARUs are set to record at pre-determined times or intervals, or can record continuously

     

  • Data volume

     

    A single image is ~5 MB. A single uncompressed audio recording (i.e. CD quality) around 10-minute in duration is usually ~100 MB. This is around 20x as large, the unit of measurement here being a single media unit (one image vs one minute of audio). 

     

  • Survey design

     

    • With cameras, even though a subset of images may be tagged by a user, all images are uploaded to WildTrax as an image set
    • With ARUs, the amount of data collected at a single location typically outweighs the ability for a human to process for a general community census. Therefore, a subset of recordings is typically chosen instead. 

     

 

You can click on the for any row of data in either the recordings or image sets tab to display overview information for each media type. Clicking on the project name will take you directly to the camera or ARU task.

 

image

  • Downloading recording metadata

     

    Clicking on the button in the recordings tab will allow you to select from the dropdown to . The metadata in the CSV file contains all the information:

     

    • Organization: The organization the recording belongs to
    • Location: The name of the location where the recording was collected
    • Latitude: A number with maximum of ten-digits indicating the location's latitude, eg. 54.11910100
    • Longitude: A number with maximum of ten-digits indicating the location's longitude, eg.-118.1728210
    • Recording date: Date and time of the recording (YYYY-MM-DD HH:MM:SS)
    • Length: Length of the recording in seconds
    • Land features: A comma-delimited list of land features surrounding the location where the recording was collected (e.g. beaver dam)
    • Location visit images: Whether or not the location has any visit images, i.e. photos of the area around the site.

     

    The metadata contained in the recording csv allows you to create projects with recordings from across your entire organization. All you need in order to generate a task in a project from the recording csv is a location name and recording date (as well as the user and method chosen for processing). 

  • Image set metadata

     

    Within the image sets tab you can find summaries of the following information:

     

    • Location: The location where the image data was collected
    • Start date: The date of the first image in the image set
    • End date: The date of the last image in the image set
    • All image count: Count of all images in the image set
    • Motion-capture image count: Count of all motion-captured images in the image set
    • Task count: Count of the numbers of tasks for this image set. Clicking on the will show the projects the image set is associated with. This will also display the observer who tagged the task, the number species detected, and the series gap used in the project. 

     

    image