Hi Summit,
It is possible to detect a moving object with a stable rectangular shape. You can achieve this using morphological operations and Hough Transform.
Morphology is a broad set of image processing operations that process images based on shapes. Here is a link for more information on these operations:
You can use some of these functions to remove noise from the image, for example, " imerode ", " imdilate ", and ' regionprops '. By choosing the size and shape of the neighborhood, you can construct a morphological operation that is sensitive to specific shapes in the input image.
MATLAB also provides “ hough ” function that implements the Standard Hough Transform (SHT). This function can detect shapes which can be represented using parametric equations.
In the cases where the shape cannot be represented parametrically (using an analytical function), you can use Generalized Hough Transform (GHT). An implementation of GHT can be found on MATLAB File Exchange. Here is the link to the submission:
Hope this helps.
Richa
