Ixus220 HS Motion detection problem - keeps on shooting - General Help and Assistance on using CHDK stable releases - CHDK Forum
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Ixus220 HS Motion detection problem - keeps on shooting

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Offline Col. Parker

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Ixus220 HS Motion detection problem - keeps on shooting
« on: 28 / January / 2016, 05:10:04 »
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Hi

I have the latest version of CHDK in my IXUS 220. Seems nice, so far, but what parameters must I adjust in  motion.bas so that it would not keep on shooting all the time even though there is no motion.

Is there a better script for MD

At ease,

Col. Parker
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Offline waterwingz

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Re: Ixus220 HS Motion detection problem - keeps on shooting
« Reply #1 on: 28 / January / 2016, 07:24:41 »
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Offline Col. Parker

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Re: Ixus220 HS Motion detection problem - keeps on shooting
« Reply #2 on: 28 / January / 2016, 07:48:46 »
I haven't found any help from those sensitivity tuning advice. I have tried numerous values of threshold and delay with no help.

Do the camera's own settings play any role in this?

My purpose is to get decent shots of people passing By at normal walking speed.
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Offline waterwingz

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Re: Ixus220 HS Motion detection problem - keeps on shooting
« Reply #3 on: 28 / January / 2016, 11:09:26 »
Quote from: Col. Parker on 28 / January / 2016, 07:48:46
I haven't found any help from those sensitivity tuning advice. I have tried numerous values of threshold and delay with no help.
Did you try setting the "g" value to 3 so that you see the sensitivity readout & grid?  That should help show you what is happening

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Do the camera's own settings play any role in this?
The motion detection algorithm looks at changes in the LCD buffer. If the camera adjusts the brightness of the display it can cause false triggers.  An increased delay value usually helps ignore the display changes after each shot.

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My purpose is to get decent shots of people passing By at normal walking speed.
That should be a pretty easy case to tune.
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