HDR enhancement with temporal multiplex

US10643358B2 · kind B2 · utility

Assignee

• Intel Corporation · US

Inventors

• Stanley J. Baran · Elk Grove, US
• Abhishek R. Appu · Cameron Park, US
• Sang-Hee Lee · Santa Clara, US
• Atthar H. Mohammed · Folsom, US
• Jong Dae Oh · Folsom, US
• Hiu-Fai R. Chan · Rancho Cordova, US
• Joydeep Ray · Folsom, US
• Kunjal Parikh · San Jose, US
• Changliang Wang · Bellevue, US
• Srikanth Kambhatla · Portland, US
• Gary Smith · Bristol, GB
• Satyanarayana Avadhanam · Cameron Park, US
• Richmond Hicks · Beaverton, US
• Robert J. Johnston · Atlanta, US
• Narayan Biswal · Folsom, US
• Susanta Bhattacharjee · Bengaluru, IN

Key dates

• Filing date: Jun 5, 2017
• Grant date: May 5, 2020
• Expiry date: Aug 18, 2037

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2207/20208
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

Systems, apparatuses and methods may a performance-enhanced computing system comprising a sensor for measuring luminance values corresponding to light focused onto the sensor at a plurality of pixel locations, a memory including a set of instructions, and a processor. The processor executes a set of instructions causing the system to generate a multi-segment tone mapping curve, generate a set of tone mapping values corresponding to the multi-segment tone mapping curve for equally spaced input values between zero and one for storage into a look up table, and process the luminance values using the look up table to apply the tone mapping curve to the luminance values of the pixels.