Patent · US Active

Compression of a raw image

US10721470B2 · kind B2 · utility

0Cited by

2References

9Claims

0Family size

Assignee

Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

Siegfried FOESSEL · Erlangen, DE
Thomas Richter · Erlangen, DE
Joachim Keinert · Altdorf, DE

Key dates

Filing date	Jul 6, 2018
Grant date	Jul 21, 2020
Priority date	—
Expiry date	Oct 15, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH04N19/186
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

The invention relates to a raw image encoder for encoding a raw image of a predetermined color pattern according to which the raw image is partitioned into pixel cell blocks, each pixel cell block comprising four pixels, each pixel being associated with one of three base colors so that each pixel cell block comprises, for each of the three base colors, at least one pixel, the raw image encoder configured to subject the raw image to a color transformation to obtain a color image, by mapping, for each pixel cell block, the four pixels of the pixel cell block onto a color component quadruple forming a sample of the color image, the color component quadruple comprising three color component values of a target color space, and one pseudo color component value, and subject the color image to a multi-component picture encoding to obtain a compressed data stream.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.