[Ssc-dev] quick note on Carrie's work

Nathan of Guardian nathan at guardianproject.info
Fri Aug 23 15:09:15 EDT 2013


Adding Harlo to this thread, and cc'ing the list, as this is an
important general topic.

On 08/23/2013 03:06 PM, David Oliver wrote:
> Here's one thing I want to know to aid in this process:  As I understand
> it, having a single accelerometer reading is useless for determining
> anything about movement, it is the comparative readings that are important.
>  Using, say, 3 readings, you could assert something about motion.  But,
> InformaCam does not know "I should collect an accelerometer reading just
> before the picture is taken, then one during, then one after - since it
> does not know when media is created.  Yet, you can't possibly gather
> accelerometer (and/or compass) in real time all the time and then wait to
> use it.......so what does InformaCam actually do?
The question is then, how/when are we logging accelerometer data, and
what can or should we infer from it?



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