How to calculate to structure tensor?

1. What is structure tensor of a 2D image?
2. Which of the structure below is referred to as tensor?
3. What is tensor in image processing?

What is structure tensor of a 2D image?

The 2D structure tensor at a given pixel is usually taken to be the discrete sum. Here the summation index r ranges over a finite set of index pairs (the "window", typically. for some m), and w[r] is a fixed "window weight" that depends on r, such that the sum of all weights is 1.

Which of the structure below is referred to as tensor?

The structure tensor, also known as second moment matrix or Förstner interest operator, is a very popular tool in image processing.

What is tensor in image processing?

Summary. Structure tensors are a matrix representation of partial derivative information. In the field of image processing and computer vision, it is typically used to represent the gradient or "edge" information.