Pixel artefacts during hardware trigger mode [DFM 22BUC03-ML]

[chutsu]

I have a DFM 22BUC03-ML connected to my laptop. I'm experimenting with hardware triggering the camera, I have done this by programming a Arduino to set a pin HIGH and LOW periodically within the camera's frame-rate. What I have noticed when I inspect the images via tcam-capture is that during hardware-trigger mode the image contains pixel-artefacts as if there are dead pixels in the image, however as soon as I switch back to software-trigger by going to Properties > Trigger > Trigger Mode > Off, the pixel artefacts disappears.

I have tried:

• Changing image resolution
• Hardware triggering different rates
• Color to GRAY8

to no avail.

Screenshot of tcam-capture in hardware trigger mode, I have the camera lens cap on for illustration purposes only. From the screenshot you can see a sprinkle of red / blue pixels. This disappears as soon as I turn trigger mode to software trigger.

Hardware Trigger with Pixel Artefacts

Software Trigger without Pixel Artefacts

computer used (please complete the following information):

• OS: Ubuntu 20.04
• Architecture/Platform: amd64, ThinkPad P52
• Camera model: DFM 22BUC03-ML
• tiscamera version: 1.0.0_HEAD/d9ada738_rev_4011

[TIS-Stefan]

Hello

I am afraid, this is caused by the camera and can not be fixed. I am aware, that is a non helpful answer and I am a little bit ashamed.

Stefan

[chutsu]

To clarify, is this caused by the sensor or some internal hardware / software issue? To say I'm dissapointed would be an under-statement as I plan on doing camera calibration with these sensors ... not entirely sure how to proceed with these pixel artifacts.

[TIS-Stefan]

Hello

I asked the firmware team and wait for an answer. Could you give me the serial number of the camera?

Stefan

[chutsu]

19220362
19220363

🙏🏻

[TIS-Stefan]

Hello

My firmware team answered. They say, it is a known sensor issue, that can not be changed.

Stefan

[chutsu]

I purchased the cameras from a distributor in the UK almost over a year ago. Is there a chance I can return based on the fact these cameras do not meet my requirements. Hardware triggering is the primary reason why I purchased theses industrial cameras in the first place and I feel duped into purchasing these cameras with a known sensor issue... I don't feel this is an acceptable issue to anyone who uses these cameras.

[TIS-Stefan]

Please ask your distributor. But waiting over a year for seeing this issue is a little bit long.

Stefan

[TIS-Edgar]

Closed due to inactivity.