Sony Corporation

Sony Group Corporation

Tomoyuki Endo

Koji Kamiya

Masaki Hirose

Hiroaki Kikuchi

Jun Onuki

Hideaki Murayama

Mikio Ishii

Kei Kakidani

To enable HDR video signals of a plurality of signal interfaces to be satisfactorily handled. [Solution] A processing unit processes a linear high dynamic range video signal and obtains a high dynamic range video signal that has undergone a grayscale compression process. The processing unit is able to perform grayscale compression processes of a plurality of signal interfaces. For example, when a grayscale compression process of another signal interface other than a reference signal interface is performed, the processing unit further performs a process of adding characteristics of system gamma of the reference signal interface and a process of cancelling out characteristics of system gamma of the other signal interface.

Signal processing device, signal processing method, camera system, video system, and server

[Object] To contribute to the achievement of a workflow in which an HDR video and an SDR video are compatible with each other. [Solving Means] This video signal processing apparatus includes an HDR video generation unit including a first converter unit that performs OOTF conversion on an HDR video by using an exponentiation function for calculating an exponentiation of 1.2, where 100% is 1, to an input signal level of the HDR video having a range from a point of 0%, where an expression range of an input signal level of an SDR video is 100%, to a change point optionally determined within a range of 100% to 500%, and by using a linear function for multiplying an input signal level of the HDR video having a range higher than the change point by a predetermined coefficient to maintain a change rate of a calculation result in a portion of the change point calculated by using the exponentiation function.

Video signal processing apparatus, video signal processing method, and video signal processing system

This video signal processing apparatus includes a signal processing unit that performs tone control on an input video signal having a linear characteristic and a control unit that blends two tone curve characteristics arbitrarily selected from among a plurality of tone curve characteristics prepared in advance and sets the blended tone curve characteristics for the tone control of the signal processing unit.

Video processing using a blended tone curve characteristic

The present technology relates to a transmission device, a reception device, a transmission system, and a transmission method capable of improving transmission efficiency of subdata added to main data. A transmission device includes a frame sequence number setting unit that, on the basis of a frame number indicating an order of a subframe in a main frame, assigns to the subframe a frame sequence number indicating an order of the subframe in a frame sequence including a plurality of the subframes, and a multiplexing unit that arranges a data packet at a predetermined position in the subframe on the basis of the frame sequence number. The present technology can be applied to a CCU, for example.

Transmission device, reception device, transmission system, and transmission method

To enable HDR video signals of a plurality of signal interfaces to be satisfactorily handled. A processing unit processes a linear high dynamic range video signal and obtains a high dynamic range video signal that has undergone a grayscale compression process. The processing unit is able to perform grayscale compression processes of a plurality of signal interfaces. For example, when a grayscale compression process of another signal interface other than a reference signal interface is performed, the processing unit further performs a process of adding characteristics of system gamma of the reference signal interface and a process of cancelling out characteristics of system gamma of the other signal interface.

To enable proper adjustment of a monitor using a color bar regardless of a difference in transfer functions. Provided is an image processing device including a determination unit configured to determine a transfer function related to conversion between light and an image signal and to be used in a display device among a plurality of transfer functions, and a generation unit configured to generate a color bar signal corresponding to the transfer function determined by the determination unit and output the generated color bar signal to the display device.

Growing community of inventors

Tokyo, Japan

Tomoyuki Endo