The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 24, 2026
Filed:
Jun. 28, 2024
Sisvel Technology S.r.l., None, IT;
UniversitĂ Degli Studi Di Torino, Turin, IT;
Institut Mines Telecom, Palaiseau, FR;
Alberto Presta, Azzano Decimo, IT;
Attilio Fiandrotti, Turin, IT;
Enzo Tartaglione, Nardo, IT;
Marco Grangetto, Pinerolo, IT;
Sisvel Technology S.R.L., None, IT;
Universita Degli Studi Di Torino, Turin, IT;
Institut Mines Telecom, Palaiseau, FR;
Abstract
A method for learned image compression implemented in an autoencoder includes: a) extracting from an image a latent space by the learnable encoder; b) quantizing the latent space by a quantizer to obtain a quantized latent space; c) entropy coding the quantized latent space by an entropy encoder to obtain a bitstream, wherein an entropy model used to encode the latent space is represented by a probability distribution; d) entropy decoding the bitstream by an entropy decoder to obtain an entropy decoded bitstream; e) feeding the entropy decoded bitstream to the decoder; f) recover a reconstructed image by the decoder; g) training the autoencoder via standard gradient descent of the backpropagated error gradient by finding learnable parameters of the learnable encoder and of the decoder that minimize a rate distortion cost function, wherein the entropy encoder is based on a differentiable formulation of a soft frequency counter.