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INDI SVBONY CCD Driver Monochrome Reimplementation

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Replied by tkakura on topic INDI SVBONY CCD Driver Monochrome Reimplementation

If you reproduced the problem after building both the latest libsvbony and indi-svbony please describe exactly what you experienced.
It is even better if you attach screenshots and/or captured Fits files.
So far you have not provided a detailed description of what you are experiencing and I do not know what the problem is.

After confirming this, I may ask you to provide logs and other information if necessary.
Last edit: 6 months 2 weeks ago by tkakura.
6 months 2 weeks ago #96570

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Replied by Matthew on topic INDI SVBONY CCD Driver Monochrome Reimplementation

I understand, my description was a bit vague. It's partly because I couldn't fully explain it myself. Pictures would come out super dim and grainy and then randomly look right, and then back to dim and grainy. I wasn't able to identify any kind of pattern to it. I did save a few FITS of the dim grainy images, but I neglected to re-take new images with the same settings once I had corrected it. I could upload those, but it would probably be better for me to just wait until tomorrow night (next clear night) and generate new images with consistent settings before and after applying the latest commit. I'll be back Saturday with more info.
6 months 2 weeks ago #96571

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Replied by Matthew on topic INDI SVBONY CCD Driver Monochrome Reimplementation

By the way, if you need to do any live debugging against an SV605CC or SV305PRO, my laptop setup is at your disposal, I'd be happy to set up remote access to aid however might be needed.
6 months 2 weeks ago #96572

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Replied by Matthew on topic INDI SVBONY CCD Driver Monochrome Reimplementation

The camera, including temperature settings, appears to be functioning properly again. Thanks for the update.
6 months 2 weeks ago #96628

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Replied by Jasem Mutlaq on topic INDI SVBONY CCD Driver Monochrome Reimplementation

I received a report on the new camera driver:

"Looks like I'm able to capture images again with the updated drivers. There is an odd thing happening with the cooler in between frames. The cooler fan momentarily stops when the image is captured and the next image starts to capture."
6 months 2 weeks ago #96699

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Replied by tkakura on topic INDI SVBONY CCD Driver Monochrome Reimplementation

It is the SVBONY Camera SDK bug.
I have asked SVBONY to fix this bug.

This bug is known to reproduce in the following cases
  • When SVBSetCameraMode changes the mode
  • When SVBSetROIFormat is called

This bug has become noticeable for the following reasons
  • Refactored indi_svbony_ccd now uses hardware binning. Before the refactoring, software binning was used and SVBSetROIFormat was not called when binning was changed.
  • Before the refactoring, feedback was given to the size of the PrimaryCCD if the size of the ROI actually set after the call to SVBSetROIFormat was different from the size that was intended to be set, but after the refactoring, that process is not included.

In the latest indi_svbony_ccd, the following process was used to prevent this from happening again, but it is not completely prevented.
  • SVBSetCameraMode is called in SVBONYBase::Connect to prevent the mode from changing when a still image is taken immediately afterwards.
  • SVBSetROIFormat is called when SVBGetROIFormat is called and the requested size and binning are different.
Last edit: 6 months 1 week ago by tkakura.
6 months 2 weeks ago #96705

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Replied by tkakura on topic INDI SVBONY CCD Driver Monochrome Reimplementation

Hi Jasem,

Today I tested the latest INDI SVBONY CCD Driver on a cooled monochrome camera "SV605MC".
It seems that monochrome imaging is working.

I was relieved to see that things had finally come to an end.
The following user(s) said Thank You: Jasem Mutlaq
6 months 1 week ago #96843

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Replied by Jasem Mutlaq on topic INDI SVBONY CCD Driver Monochrome Reimplementation

Great to know thanks to your hard work along with the folks testing the driver. Bravo!
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6 months 1 week ago #96845

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Replied by tkakura on topic INDI SVBONY CCD Driver Monochrome Reimplementation

Now for the first topic of this thread and the subsequent status of the "banding noise reduction software."

After all, it seems that SVBONY itself will implement the banding noise reduction feature in the SVBONY Camera SDK. Therefore, I have decided not to implement the banding noise reduction feature in the INDI SVBONY CCD Driver.
6 months 1 week ago #96846

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Replied by hades on topic INDI SVBONY CCD Driver Monochrome Reimplementation

Hi, I got the same answers from SVBony as you. But they replied to me more than 3 months ago and nothing happens yet. I am little bit pessimistic about that.
6 months 1 week ago #96857

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Replied by tkakura on topic INDI SVBONY CCD Driver Monochrome Reimplementation

On 2023/10/5 at 10:12 JST the SVBONY Japan account posted on X that they are currently testing SVBONY Camera SDK 1.12.0.
This information is only 5 days old. I am a bit hopeful.
6 months 1 week ago #96873

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Replied by tkakura on topic INDI SVBONY CCD Driver Monochrome Reimplementation

Hi Jasem

The refactored driver is actually used.
I have not investigated it yet, but I feel that it now takes longer per image when shooting with Sequence than before.

The Download Estimate for a flat shot with an exposure time of 0.032sec exceeds 10 seconds.
I remember that it used to take 2 to 4 seconds.

There may be some overhead in shooting.
For example, the SVBONY API, which should be called only at the beginning of a sequence, is called for each shot.
2023-11-03T13:51:53 Capturing 0.032-second  image...
2023-11-03T13:51:52 Received image 89 out of 500.
2023-11-03T13:51:52 Download Time: 12.89 s, New Download Time Estimate: 11.07 s.
2023-11-03T13:51:52 Captured X:/StellarMate//Elephants_Trunk_Nebula/Flat//Elephants_Trunk_Nebula_Flat_0.032_secs_g300_o40_c-10C_2023-11-03T13-51-53_pEast_089.fits
2023-11-03T13:51:39 Capturing 0.032-second  image...
2023-11-03T13:51:38 Received image 88 out of 500.
2023-11-03T13:51:38 Download Time: 12.99 s, New Download Time Estimate: 11.06 s.
2023-11-03T13:51:38 Captured X:/StellarMate//Elephants_Trunk_Nebula/Flat//Elephants_Trunk_Nebula_Flat_0.032_secs_g300_o40_c-10C_2023-11-03T13-51-39_pEast_088.fits
2023-11-03T13:51:25 Capturing 0.032-second  image...
2023-11-03T13:51:24 Received image 87 out of 500.
2023-11-03T13:51:24 Download Time: 11.41 s, New Download Time Estimate: 11.05 s.
2023-11-03T13:51:24 Captured X:/StellarMate//Elephants_Trunk_Nebula/Flat//Elephants_Trunk_Nebula_Flat_0.032_secs_g300_o40_c-10C_2023-11-03T13-51-25_pEast_087.fits
6 months 6 days ago #96881

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