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Author Topic: DCS-933L - Firmware v1.02b5 - Comments & Observations  (Read 52585 times)

HWAM

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Re: DCS-933L - Firmware v1.02b5 - Comments & Observations
« Reply #15 on: December 10, 2013, 11:41:34 PM »

I tested this night with MJPEG (320x240) and No False detections!!!

I think the problem is H.264! That's also why the 932L is much better.
Since the start I was using H.264 (640x480). I think it's a problem with the H.264 codec or the resolution!

I will test further combinations later.

Maybe you can check some things too.

Grt.
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noseph

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Re: DCS-933L - Firmware v1.02b5 - Comments & Observations
« Reply #16 on: December 11, 2013, 07:19:58 AM »

I tested this night with MJPEG (320x240) and No False detections!!!

I think the problem is H.264! That's also why the 932L is much better.
Since the start I was using H.264 (640x480). I think it's a problem with the H.264 codec or the resolution!

I will test further combinations later.

Maybe you can check some things too.

Grt.


My video has always been set to MJPEG (640x480) and I continue to get false detections.
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HWAM

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Re: DCS-933L - Firmware v1.02b5 - Comments & Observations
« Reply #17 on: December 11, 2013, 07:28:49 AM »

Can you see scrambled lines and/or blocks on the photos and videos? My (6) photos contains big scrambled lines and blocks in H.264 mode.

If you don't see scrambled lines and/or blocks I think it's really a motion, maybe some light or other things.

The scrambled lines and/or blocks on the photos are very easy to see, very big. Until now only in H.264 mode for me.

Please tell me about the photos. I want to solve this issue....

Grt.
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HWAM

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Re: DCS-933L - Firmware v1.02b5 - Comments & Observations
« Reply #18 on: December 12, 2013, 01:23:38 AM »

Last night in MJPEG (640x480) Jpeg Quality: High and Frame Rate: 30 -> 3 false detections!! >:(
In the movie I can see the a few frames flickering. A coding error -> for sure!

Conclusion: I guess the higher the Resolution and/or Quality and/or Frame Rate the more problems. The cam has problems with encoding video. H.264 needs a lot CPU power so I guess this is not working fine. If I run in MJPEG (320x240) Jpeg Quality: Low and Frame Rate: 15 it's working much better.

So if you have false detections: Please test with Low Resolution and Low Quality and Low Frame Rate.

Please communicate your experiences. Thanks.

Grt.

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noseph

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Re: DCS-933L - Firmware v1.02b5 - Comments & Observations
« Reply #19 on: December 12, 2013, 02:57:56 AM »

Can you see scrambled lines and/or blocks on the photos and videos? My (6) photos contains big scrambled lines and blocks in H.264 mode.

If you don't see scrambled lines and/or blocks I think it's really a motion, maybe some light or other things.

The scrambled lines and/or blocks on the photos are very easy to see, very big. Until now only in H.264 mode for me.

Please tell me about the photos. I want to solve this issue....

Grt.

Here is my original post on this issue. http://forums.dlink.com/index.php?topic=56428.0
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ddubbs

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Re: DCS-933L - Firmware v1.02b5 - Comments & Observations
« Reply #20 on: December 12, 2013, 11:44:35 AM »

Another vote for problem with H264 implementation.  The stream itself is choppy, even if buffered for 10 seconds, and using lower resolution/frame rates via good wifi connection (no prob with mjpeg though, besides lack of audio).
Does D-Link really think everyone wants to use their cloud service crap, this thing would be much more reliable with a FFMPEG stream option, rather than this H264 in an flv container bull!
I'm guessing this unit just lacks the necessary CPU...
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HWAM

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Re: DCS-933L - Firmware v1.02b5 - Comments & Observations
« Reply #21 on: December 12, 2013, 12:50:01 PM »

Yes, and even MJPEG in 640x480 is not working. Also strange black frames and scrambled frames.

Now I run in in MJPEG (320x240)
Jpeg Quality: Low
Frame Rate: 15
This is working much better.

But who want the lowest quality???

 >:( >:(
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noseph

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Re: DCS-933L - Firmware v1.02b5 - Comments & Observations
« Reply #22 on: December 12, 2013, 03:14:39 PM »

Yes, and even MJPEG in 640x480 is not working. Also strange black frames and scrambled frames.

Now I run in in MJPEG (320x240)
Jpeg Quality: Low
Frame Rate: 15
This is working much better.

But who want the lowest quality???

 >:( >:(

I am now testing MJPEG (320x240)
Jpeg Quality: Medium
Frame Rate: Auto

Really want the higher quality though.
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HWAM

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Re: DCS-933L - Firmware v1.02b5 - Comments & Observations
« Reply #23 on: December 13, 2013, 02:55:55 AM »

Still no False detections with:

MJPEG (320x240)
Jpeg Quality: Low
Frame Rate: 15

And yes, I also want better quality. >:(

But better this than mail all day. ;D

Grt.
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noseph

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Re: DCS-933L - Firmware v1.02b5 - Comments & Observations
« Reply #24 on: December 16, 2013, 04:02:00 AM »

Had my first false detection last night since switching to:

MJPEG (320X240)
Jpeg Quality: Medium
Frame Rate: Auto

False detection did not contain any distorted frames, if I get any more I will look at adjusting the sensitivity.
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HWAM

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Re: DCS-933L - Firmware v1.02b5 - Comments & Observations
« Reply #25 on: December 16, 2013, 04:14:47 AM »

I run on MJPEG 320x240 - Quality: Very High - Frame Rate: 30

Sensitivity: 40%

No False detections anymore. Night and day work perfect.

Never saw distorted frames anymore.

Cam is noticing movements I want to know. People on my ramp. ;D

Still sad that H.264 (320x240) and also higher resolutions are not working fine. >:(

Grt.
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JavaLawyer

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Re: DCS-933L - Firmware v1.02b5 - Comments & Observations
« Reply #26 on: December 16, 2013, 05:00:42 AM »

I run on MJPEG 320x240 - Quality: Very High - Frame Rate: 30

Sensitivity: 40%

No False detections anymore. Night and day work perfect.

Never saw distorted frames anymore.

Cam is noticing movements I want to know. People on my ramp. ;D

Still sad that H.264 (320x240) and also higher resolutions are not working fine. >:(

Grt.


Although not exactly what you wanted, I'm glad you found a combination of settings that meets your needs.  ;)
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noseph

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Re: DCS-933L - Firmware v1.02b5 - Comments & Observations
« Reply #27 on: December 16, 2013, 02:59:59 PM »

I run on MJPEG 320x240 - Quality: Very High - Frame Rate: 30

Sensitivity: 40%

No False detections anymore. Night and day work perfect.

Never saw distorted frames anymore.

Cam is noticing movements I want to know. People on my ramp. ;D

Still sad that H.264 (320x240) and also higher resolutions are not working fine. >:(

Grt.


Unfortunately I am stuck with night mode only since I am also monitoring audio and the switch between video modes triggers an audio event.
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JavaLawyer

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Re: DCS-933L - Firmware v1.02b5 - Comments & Observations
« Reply #28 on: January 18, 2014, 07:37:07 AM »

Any news about a new firmware??? What kind of service is this? Know bugs and no response anymore.

 >:( >:(


??? ??? Firmware version 1.02b05 was just released in October.
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kfric

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Re: DCS-933L - Firmware v1.02b5 - Comments & Observations
« Reply #29 on: January 20, 2014, 08:00:46 PM »

Hi, another user with the same problem. False triggers with no motion in the image whatsoever. Just sometimes artifacts in the captured images that remind me of an old TV with a horizontal sync. problem. I even tried a replacement camera, the results were identical. Tried using it two different locations to eliminate the likelihood of electrical noise being the cause. I doubt it is now.

I've tried reducing the image resolution as suggested, but now when I try to view the camera on my app, it crashes the app. Set the resolution back to 640x480 and the app works, but I get false alarms again.

This product really isn't up to the standard I expected. Hope that Dlink can come up with a solution.
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