How do I detect a change in a 3 frame sequence of images?

3 次查看（过去 30 天）
azarm
azarm 2011-6-14
I need to detect smoke in a 3 frame image sequence with time difference.
I segmented some suspicious regions in the image. I need a method to detect if there are changes in the region by using frames. I calculated the NCC value of the region between two frames, but need other methods to decide about smoke.

请先登录，再回答此问题。

回答（1 个）

Sean de Wolski
Sean de Wolski 2011-6-14
how about an image subtraction or absolute difference?
doc imsubtract
doc imabsdiff
  1 个评论
azarm
azarm 2011-6-15
well, actually i tried it before. the problem is with compact smoke in close-up range that doesn't chang that much in the sequence. Using diff, the object in some cases would be erased.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Image Arithmetic 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by