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geekhack Community => Off Topic => Topic started by: tp4tissue on Sat, 30 September 2017, 15:42:03

Title: Dash Cams
Post by: tp4tissue on Sat, 30 September 2017, 15:42:03
Is it just me ??

Or, does every dash cam kinda suck...

I've seen 10 year old home video cameras that take more detailed videos than today's cams.




Title: Re: Dash Cams
Post by: C5Allroad on Sat, 30 September 2017, 17:31:40
I think it's safe to say that most indeed do suck pretty hard unless you drop some serious money into one.
Title: Re: Dash Cams
Post by: ander on Sun, 01 October 2017, 01:31:34
Cash dams.
Title: Re: Dash Cams
Post by: tp4tissue on Sun, 01 October 2017, 08:46:07
Which one have ya'll tried with Actual good quality like normal video cameras.
Title: Re: Dash Cams
Post by: nmur on Sun, 01 October 2017, 08:52:53
i always thought the quality was intentionally low, so the little sdcards can hold weeks' worth of driving footage
Title: Re: Dash Cams
Post by: tp4tissue on Sun, 01 October 2017, 10:17:50
i always thought the quality was intentionally low, so the little sdcards can hold weeks' worth of driving footage


They all seem to run at 20mbit for most cameras above $50,  that's 2.5MB/s  ,  so a 64gb card gets you around 6 to 6 and a quarter hours.

Assuming your commute is roughly 1 hour,  that's only 3 days worth of footage on the 64gb card.


But data size isn't the issue.


Because the image quality sucks..  I've seen much lower bitrate videos that look way better.



The sony exa sensor is the popular one right now, lots of companies seem to release cameras touting sony..  because it's got better night time vision

But they're all 2 megapixel sensors,  and it's just too small because you can barely see license plates at 3 car lengths.


The main issue may be cost, because yea you can build a $500 dash cam, but then the heroin addicts loitering every american parking lot will have a field day.

Everywhere you go these days, you see heroin addicts..

Title: Re: Dash Cams
Post by: tp4tissue on Sat, 07 October 2017, 22:30:07
What's silly is..

Dash cam peeps are obssessed with 1080p 60fps

But Probably more than 80% of them can't playback 1080p/60 with good scaling without frame drops.. hahahahahaha
Title: Re: Dash Cams
Post by: fanpeople on Sat, 07 October 2017, 23:50:57
I watch a lot of dash cams Australia on you tube, the general quality seems pretty good. **** your not meant to be shooting pron with the thing, it is there to capture a sequence of events in the event of an accident.
Title: Re: Dash Cams
Post by: tp4tissue on Sat, 07 October 2017, 23:54:38
I watch a lot of dash cams Australia on you tube, the general quality seems pretty good. **** your not meant to be shooting pron with the thing, it is there to capture a sequence of events in the event of an accident.

E-gadz.. Tp4's cunning plan foiled by fanpeople !!
Title: Re: Dash Cams
Post by: Duckyreddy on Sun, 08 October 2017, 00:05:23
As long as the damn camera has good angle coverage and decent image quality and low-light performance, I guess that is sufficient

I don't have high expectations for Dash cams at all but I bought mine in Taiwan about a year ago, It has a Sony sensor with pretty amazing low light performance and image quality as well as pretty clear glass for wide angle with little to no glare, It also has a sensor built in to detect sudden collisions which basically automatically trims the footage to the 3 minutes before and after the impact, making files much easier to recover and find, it's a great little thing to have if you do drive professionally and gives you that piece of mind.

The one I bought was around $120 USD, not sure if it's available outside of Taiwan though.  :thumb:
Title: Re: Dash Cams
Post by: rowdy on Wed, 11 October 2017, 21:12:26
1080p 60fps in good light can't be all that bad?