Patent ID: 11956568
Assignee: SONY GROUP CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. A video signal processing apparatus to generate HDR video for display on an HDR monitor, the apparatus comprising:
first circuitry configured to perform an Opto-Optical Transfer Function (OOTF) conversion, by using a predetermined function, on an input video signal having a range from a predetermined reference point to a change point determined, the OOTF conversion being analogous to OOTF conversion for an SDR video, wherein the predetermined function used by the first circuitry is an exponentiation function for calculating an exponentiation of 1.2, where a point of 100% is 1, in the input video signal, wherein an expression range of an input signal level of the SDR video is expressed as 100%; and
second circuitry configured to perform an Opto-Electronic Transfer Function (OETF) conversion on an output of the first circuitry and generate the HDR video for display on the HDR monitor.