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inbo / camtrapdp

R package to read and manipulate Camera Trap Data Packages (Camtrap DP)
https://inbo.github.io/camtrapdp/
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`type` for camera trap images #7

Open peterdesmet opened 2 years ago

peterdesmet commented 2 years ago

How to populate dwc:type for a camera trap observation?

I thought Event, as that is basically what the observation is, but @tucotuco argues for StillImage since the image is the source of the observation. Some observations are based on video files (MovingImages), others on a series of still images (sequence, still StillImage).

I don't think we should make the distinction between videos, sequences or photos and would suggest to use the fixed (higher) term Image for type. @tucotuco, does that make sense?

peterdesmet commented 2 years ago

Looking at the definitions in https://www.dublincore.org/specifications/dublin-core/dcmi-type-vocabulary/2010-10-11/:

I'm wondering why not all observations are Event irrespective of their source.

tucotuco commented 2 years ago

The big issue with Event is that it doesn't tell you anything. Image at least tells you the evidence is based on media as opposed to physical objects. More is better in this case it seems to me.

That is not to say the record isn't also about an Event, and therein lies the problem of a flat representation of the data with only one type expressible.

peterdesmet commented 2 years ago

Thanks, I will translate that in the recommendations as:

dc:type (https://dwc.tdwg.org/terms/#dc:type Share if available) The nature of the resource. Use StillImage if the record is based on an image or sequence of images, MovingImage if based on a video. One can also use the broader term Image for all records.

peterdesmet commented 2 years ago

Update SQL to set StillImage or MovingImage once the new structure is used for Camtrap DP.