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:
Jun. 14, 2016
Filed:
Oct. 28, 2014
Avid Technology, Inc., Burlington, MA (US);
Shailendra Mathur, Beaconsfield, CA;
Sylvain Girard, Montreal, CA;
Avid Technology, Inc., Burlington, MA (US);
Abstract
High dynamic range media sensor output is encoded using a hybrid transfer function. The hybrid transfer function conforms to existing industry standards over standard brightness level ranges, such as between black and white reference points, and uses a different function to encode captured signals having intensities below the black point and above the white point. Precision over the expanded dynamic range of captured image data is optimally preserved using a two-byte per pixel representation. The transfer function varies across the full dynamic range without clamping off below the maximum value of the expanded captured intensity range. One hybrid transfer function conforms to BT.1886 up to the white point, and uses a linearly varying encoding gamma above the white point up to 1300% IRE, producing encoded values in a 2.14 fixed point representation. The hybrid transfer function is continuous at the white point, and may also have a continuous gradient there.