Guided bilinear interpolation is it a known algorithm?

1. What is bilinear algorithm?
2. What is bilinear interpolation method?
3. Why do we use bilinear interpolation?

What is bilinear algorithm?

In computer vision and image processing, bilinear interpolation is used to resample images and textures. An algorithm is used to map a screen pixel location to a corresponding point on the texture map. A weighted average of the attributes (color, transparency, etc.)

What is bilinear interpolation method?

Bilinear Interpolation : is a resampling method that uses the distanceweighted average of the four nearest pixel values to estimate a new pixel value. The four cell centers from the input raster are closest to the cell center for the output processing cell will be weighted and based on distance and then averaged.

Why do we use bilinear interpolation?

It's​ recommended to use bilinear interpolation for continuous data sets without distinct boundaries. The surface must be continuous and the closest points must be related. When you run the process, it generates a smoother surface, but not as severe as cubic convolution which uses 16 neighboring cells.