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Questions tagged [matrix-vision]

8 questions
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Homogeneous matrix has eight independent ratios of matrix elements?

I'm reading some paper about computer vision. It looks like a simple fact but I can't understand. It is about homogenous [3x3] matrix that is used for planar projective transformation. And it is said to have eight independent ratios of matrix…
HongAnTC AnAn
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Harvesters (genicam) trigger issue at high line rate | Camera: Teledyne dalsa

I use a Teledyne Dalsa line scan camera. Sometimes when I increase the line rate of my Teledyne Dalsa line scan camera to 13000 or higher and trigger it with an Arduino at 3V3, the images are not consistently captured from the buffer for every…
John son
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Can I use Matrix Vision frame grabbers with Matlab?

I am trying to aquire image using a camera connected to the Matrix Vision frame grabber in Matlab. However, when I type imaqhwinfo, I see the installed adaptors as 'coreco' and 'winvideo'. When I checked the device info, it says that that are no…
Veronica
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How to set exposure time in Python using mvImpact library

I connected to Matrix Vision BVS0036 industrial camera with Python using mvImpact library. I can use the camera now, but I don't know how to change the exposure time or other settings of the camera. Or rather, I couldn't. The code you see is the…
mehmet_kacmaz_03
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Different behavior in dll when running host application from Codeblocks IDE

I'm having an interesting problem regarding a machine vision camera, a dll, a host application, and CodeBlocks. I have a dll that enumerates Matrix Vision cameras, and directs calls from a host application to whichever camera the host application is…
Mike Gibson
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Changing streaming frame rate for BlueFox3 camera using c++ (Linux)?

I did not find how to set from a C++ code the number of frames per second the camera needs to acquire. The provide API…
Courier
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memcpy error from char* to cv::Mat

I am trying to convert the data from an industry camera to a cv::Mat. This is the error I get when backtracing the segmentation fault in gdb. #0 __memcpy_sse2_unaligned () at ../sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S:35 #1 …
hGen
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How do I use C++ to acquire image from frame grabber?

I would like to know how is it possible to use a free C++ program to acquire image from a matrix vision frame grabber. Thanks.
Veronica
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