Section: New Software and Platforms

Compression of omnidirectional images on the sphere

Keywords: Image compression - Omnidirectional image

Functional Description: This code implements a compression scheme of omnidirectional images. The approach operates directly on the sphere, without the need to project the data on a 2D image. More specifically, from the sphere pixelization, called healpix, the code implements the partition of the set of pixels into blocks, a block scanning order, an intra prediction between blocks, and a Graph Fourier Transform for each block residual. Finally, the image to be displayed in the viewport is generated.

• Contact: Aline Roumy