hi, is it possible to track the possition of elements using background substration in gem?
i made i project using pix_movement in conjuntion with pix_multiblob, and worked fine , but it seems pix_multiblob is just able to do the detecting throuht brightness thresholding. my question is about doing the same but withouht brithghtness thresholding.
in other systems like eyeweb i can compare each frame of the video with a stored image of the scene background.the system can detect and give me the coordinates of the new objects or people in my scene. This is called background substration . so my question is : is there any way to have a multiblob tracker but that works with background substration instead of brightness thresholding?
many thanx
yuki
yukio yukio_mishima@fastmail.fm
look for pix_background
Am 17.07.2006 um 13:30 schrieb yukio:
hi, is it possible to track the possition of elements using
background substration in gem?i made i project using pix_movement in conjuntion with pix_multiblob, and worked fine , but it seems pix_multiblob is just able to do the detecting throuht brightness thresholding. my question is about doing the same but withouht brithghtness thresholding.
in other systems like eyeweb i can compare each frame of the video
with a stored image of the scene background.the system can detect and
give me the coordinates of the new objects or people in my scene. This is
called background substration . so my question is : is there any way to have a multiblob tracker but that works with background substration instead of brightness thresholding?many thanx
yuki
yukio yukio_mishima@fastmail.fm
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Hi Yukio,
Look up pix_background, that saves a "background" image, that is subtracted from the "live" video frames. There is also a threshold to accept some noise difference between a live video image of the background and a single stored frame.
.b.
yukio wrote:
hi, is it possible to track the possition of elements using background substration in gem?
i made i project using pix_movement in conjuntion with pix_multiblob, and worked fine , but it seems pix_multiblob is just able to do the detecting throuht brightness thresholding. my question is about doing the same but withouht brithghtness thresholding.
in other systems like eyeweb i can compare each frame of the video with a stored image of the scene background.the system can detect and give me the coordinates of the new objects or people in my scene. This is called background substration . so my question is : is there any way to have a multiblob tracker but that works with background substration instead of brightness thresholding?
many thanx
yuki
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