Patent · US Active

Method and system for frame rotation within a JPEG compressed pipeline

US8098959B2 · kind B2 · utility

2Cited by

4References

37Claims

0Family size

Assignee

Aptina Imaging Corporation · KY

Inventors

Clifford Yeung · San Jose, US
Sheng Lin · Sunnyvale, US

Key dates

Filing date	Oct 29, 2008
Grant date	Jan 17, 2012
Priority date	—
Expiry date	Oct 26, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH04N19/60
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A system and methods for rotating and compressing digital image data is presented. The system includes an image sensor that vertically and horizontally flips a digital image, an image processor that converts the image into the YCbCr color space, reorder buffers that divide the YCbCr component data into component blocks and rotate the component blocks, and a JPEG encoder that applies JPEG compression to the rotated component blocks. The JPEG encoder differentially encodes DC coefficients of the component blocks in an order that corresponds to the desired rotated image. An index is created by the JPEG encoder that allows for the reconstruction and storing of the rotated component blocks as a rotated JPEG image.

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