Posts by ArjunLucid

    Dear Support,


    We made an applet with ImageBufferMultiROI operator for line scan camera. For example, Image size to be captured is 1000 x 1000 pixels. Through multi ROI, we would like to get just 2 ROIs, 1st 100 lines (y offset 0) and from center 100 lines (y offset 500). As per functionality of ImageBufferMultiROI in freerun mode, it should send the 1st ROI out as soon as it receives the 100th line and the 2nd ROI should be sent as soon as it receives the 600th line. But what we are noticing is, the 2 ROI as are sent out like burst after the buffer receives 1000th line only. Is this correct? Could some one help?


    Thanks ,

    Arjun

    Dear Support,

    We have created an Applet for capturing image from a 8k camera (Teledyne e2v Eliixa+ 8k monochrome) in full mode 8bitx8 tap. Image capturing at full resolution at 40KHz line rate is OK. But we also need a down-sampled image (width/2 and height/4) from another DMA. We used "Sample down" operator but it resulted in build error and some times it ran up to 12 hrs!. I also tried sampling down with other operators but that too not getting built/synthesized. Could you please guide me if there is any mistake in the design? Attaching the VA file for your reference. Refer "SampleDown" hierarchical block.

    Thanks,

    Arjun


    IRT_8K_V1.21.va

    Dear Björn,


    Thanks for the sample VA. We tried the sample program and its working on certain condition:

    If pulse frequency is 4 Hz, the tick frequency for the "Delay module set in Multiple pulse mode" has to be multiples of 4 Hz. Am I right? If not, it is pulses are getting missed. Attaching the modified VA file for VD4 card.


    Thanks,

    Arjun


    DelayPulseTrain_v1.04_VD4_SingleDma.va

    Dear All,

    I need a sample VA program to delay a train of pulses using "Signal Delay" operator in "Multiple pulse" mode. I tried it, but it is not working as expected. So it would be good if some one can share a sample VA that works in following condition:


    Input pulse frequency --> 4 Hz

    Pulse delay - 10 seconds or in encoder pulses


    Board preferred --> me4 VD4 or VQ4

    Sample program attached for VQ4 --> Check in Process0/Trigger_Manipulator_Color/Delay


    DelayPulseTrain_V1.02.va


    Thanks,

    Arjun

    Lucid Imaging Private Limited