[PSUBS-MAILIST] Virtual Viewports

[Antoine Delafargue via Personal_Submersibles]

Hi Cliff,

-the casing is 1atm, of the type that is on the picture below being prepped
for pressure test up to 400m at Emile's:
-the cam is an industrial model that my project mate uses for his drones (
www.*delair*-*tech*.com/en).
I don t have the specs, but it is a wide sensor for low light conditions.
We ll use it primarily for shooting pictures, synchronized with LED lamps
flashes
-the relay screen will be a small PC with separate screen.
[image: Inline image 1]
regards
Antoine

On Sun, Jan 17, 2016 at 1:57 AM, Cliff Redus via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> Good idea about tilting the hatch forward by 10 degrees to improve forward
> viability.  For the camera, have you speced it yet?  Will it be a 1 atm
> pressure chamber as Jon suggest?  Have you speced the display monitor?
>
> Cliff
>
> On Sat, Jan 16, 2016 at 11:05 AM, Antoine Delafargue via
> Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>
>> HI Cliff,
>> for Pilot Fish, we ll have the same configuration as on your R300,
>> although the hatch is tilted nearly 10° forward to improve visibility.
>> We are building a camera in the nose pointing downwards in a transparent
>> acrylic casing.
>> and plan to relay it to a portable screen inside the sub.
>> We ll see how it renders...
>>
>> regards
>> Antoine
>>
>> On Sat, Jan 16, 2016 at 4:46 PM, Jon Wallace via Personal_Submersibles <
>> personal_submersibles at psubs.org> wrote:
>>
>>>
>>> USB HD webcams are pretty cheap and can easily be put into a homebuilt
>>> housing.  I am planning on using them with a small 12inch notebook for
>>> video capture.  You can use multicam software like ISPY to combine multiple
>>> cameras into one viewing area.  The only problem I've found is that I can't
>>> get more than three cameras to work with any computer I've tried.  IP
>>> Cameras are another option but are more expensive and larger so require a
>>> bigger footprint on the sub.  And of course if the housing fails it will
>>> hurt your pocket book more to purchase another IP cam. The advantage though
>>> is that most of them have built in IR lights for night vision.
>>>
>>> If you want something more basic, check out Raspberry PI with Processing
>>> Language for building a graphical display.  You can feed a camera to it to
>>> display on a small touchscreen.  I've tried it and it works very well.
>>>
>>> Jon
>>>
>>>
>>>
>>> On 1/16/2016 10:34 AM, Cliff Redus via Personal_Submersibles wrote:
>>>
>>>> With the sitting position of the pilot in the R300 and the
>>>> hemispherical viewport, visibility upwards all around is excellent but
>>>> visibility off to the port and starboard sides of the boat when looking
>>>> down is poor.  I am interested in what experience we have collectively on
>>>> using subsea cameras and displaying monitor as virtual viewports.  Has any
>>>> one commissioned one of these cameras?  What brand and model did you use
>>>> and what HMI or monitor did you use?  Has it worked? What has worked well
>>>> and what whould do differently on your next boat?
>>>>
>>>>  I know from emails a few years back that Carsten was planning on using
>>>> this concept rather than a physical viewport.  I would be interested in
>>>> anyone's experience on this.
>>>>
>>>> cliff
>>>>
>>>>
>>>>
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>>
>>
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>
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