Known Alvium's issues

Known Alvium's issues


Ticket iMAGE S
Ticket AVT
Problem Description
Camera Model
FW Version
Status on the field
iMAGE S comment
Feedback AVT
1009
117202
Incomplete frames, even when a single frame is triggered
Manta, and Alviums USB (2050m and 500m) - Probably directly not related a specific model
up to FW 10
Solved with FW Update to 12.
Handled with workaround (new frames request when incomplete frame occurs) 
 Likely influenced by the specifc USB Chipset, reducing the Throughput limit strongly reduces the rate of Incomplete frames
Fixed from FW12
354

Asynch. acquisition with SW Trigger, wrong image when throughput limit is not frame rate's multiple. FW 7
Alvium 1800 U - 2050m
(alleged to affect all Rolling Shutter sensors)
7
Solved with FW Update to 12.
If FW update is not allowed: handled with workround (Freerun at fixed frame rate instead of SW Trigger used. Frame rate set to multiple of the timing imposed by the throughput limit)

Fixed from FW12
1184
      117202

Image artifacts when ROI size and offset are set for the first time, with ReverseY enabled
Alvium 1800 U-2050m
12
Solved with FW update to 13.
If FW update is not allowed: handled with workaround - set ReverseY first and then set the ROI settings. Or set ROI in two steps

Fixed from FW13
1184
120438
While in Single Frame, if a new Exposure Time is set, the camera starts to acquire continuously in freerun. 
Alvium 1800 U-500m
12
Solved
Previously handled with workaround -  Stop the camera before modifying exposure time

Fixed in FW 13.01
1184
120348
Acquisition in SingleFrame: when exposure time is pretty long (>=500ms). After some single frames have been acquired. A brigther one is acquired. Then grabbing any further single frame gets a -13 error. The camera needs a Reset.
Alvium 1800 U-500m
12
Solved

Fixed in FW 13.01
1184
120348
Acquistion in SingleFrame: after the above issue occurs, further frames acquisition are denied. Error code -13 is reported. The camera needs a Reset
Alvium 1800 U-500m
12
Solved

Fixed in FW 13.01
1184
120348
Acquisition in SingleFrame: is Start/Stop grab is done too fast (i.e. before the frame is completed), a -13 error is returned. The camera needs a Reset
Alvium 1800 U-500m
12
Open
Camera behaviour

1280
121770
If gain is modified with too large excursion the new setting has no effect on the image intensity. Nevertheless that, gain's feature is updated correctly.
Alvium 1800 U-500m (exposures >=100ms)
11/12
Handled with workaround - Change gain gradually with smaller steps

Fixed with FW 13.1

  122257
With Async. acquisition and trigger mode, if exposure time is modified just before providing a new SW trigger. The camera is not able to return a frame. A delay equal to the frame time must be waited before commanding a new frame.
Camera needs to discard a dummy frame after exposure change, before accepting a new one.
Alvium 1800 U-2050
Alvium 1800 U-500
any
Open

Intrinsic property of Rolling Shutter sensors, some improvements could come with FW14 and Sony sensors.
764
114611
With more than one camera, disconnection and acquisition problems happening randomly on one or more cameras.
Alvium 1800 U-240
10/11/12/13
Solved

Tested almost everything, from SW to cables, from acquisition interface to PC mainboard. Nothing solved. PCB replacing solved
-
-
Sometime, especially with Intel's USB Chipset, the camera is recognised as USB2 device
Alvium USB3
10/11/12/13
-
To test problems at camera's USB interface, a fallback FW has been provided previously, fallback FW is attached

988

DPC map not correct, AVT's DPC tool cannot manage > 1000 defect points. So with high resolution sensors it is not able to handle a custom DPC map properly. Also DPC algorithm seems to be improved
Alvium 2460c
Any
Open - custom creation of DPC map. For instance with Halcon
Likely will take very long time to be addressed
AVT's DPC tool to be improved. Still to be done.
-
1983 
Wrong white balance when operating with trigger mode
Alvium 1240c e 2050c
13.01.794391f9
Open - to be fixed in next FW release
It is due to wrong management of read out with red and blue pixels
To be fixed in next FW release













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