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From: Alvin on 15 Jun 2010 04:08
The image is coming from a Sony CCD camera, one that is used for night vision purposes. When we used BNC to USB converter card the images looked crystal clear. However we are now running through a National Instruments image capture setup and the images come out with the lines running through them.

The live images from MATLAB Image Acquisition show the lines running down, so it does not seem to be a data type problem (i.e. 16-bit into 8-bit) or a file type problem (JPEG).

We have two cameras connected to the NI image capture setup, and both show the same vertical lines, thus it is not the camera's problem.

Possibly a connection issue between the camera and the NI system?

> Tim:
> Is this the way the live images look, or is this recalling a stored
> image from a disk file? Because if you're reading it from a file, it
> kind of looks like the way images look if you're not reading them into
> the right data type, like you're reading 16 bit data into 8 bit
> variables or vice versa, or reading floating point data into integer
> variables, or vice versa.
>
> Another option could be a defective shift register on the CCD. If you
> swap cameras with another one does the second camera also look similar?
From: Alvin on 15 Jun 2010 04:09
The image is coming from a Sony CCD camera, one that is used for night vision purposes. When we used BNC to USB converter card the images looked crystal clear. However we are now running through a National Instruments image capture setup and the images come out with the lines running through them.

The live images from MATLAB Image Acquisition show the lines running down, so it does not seem to be a data type problem (i.e. 16-bit into 8-bit) or a file type problem (JPEG).

We have two cameras connected to the NI image capture setup, and both show the same vertical lines, thus it is not the camera's problem.

Possibly a connection issue between the camera and the NI system?

> Tim:
> Is this the way the live images look, or is this recalling a stored
> image from a disk file? Because if you're reading it from a file, it
> kind of looks like the way images look if you're not reading them into
> the right data type, like you're reading 16 bit data into 8 bit
> variables or vice versa, or reading floating point data into integer
> variables, or vice versa.
>
> Another option could be a defective shift register on the CCD. If you
> swap cameras with another one does the second camera also look similar?
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