Abstract: There is provided an information processing device, an information processing method, and an information processing system, capable of improving an accuracy of detection of an imaging direction of a camera without using a device having a specific function. The information processing device includes a deviation detection unit that detects a deviation of a first imaging direction based on a captured image, the first imaging direction being an imaging direction of an imaging device that is detected by the imaging device that captures an image to obtain the captured image, the imaging direction being associated with the captured image. The present technology can be applied to a camera control unit (CCU) that controls the imaging device.

Abstract: 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.

Abstract: Imaging-related information such as information regarding the position or orientation of a camera is output in an appropriate manner. A control device according to the present technology includes: a determination unit that determines a usage mode of an imaging device; and a control unit that performs output control of imaging-related information related to the imaging device on the basis of the usage mode determined by the determination unit. Performing the output control of the imaging-related information on the basis of the usage mode of the imaging device makes it possible to perform control so as not to output unnecessary information according to the usage mode of the camera. For example, in a case of a fixed camera that does not move, the imaging-related information as position information of the camera is not output, and in a case of a handy camera that is assumed to move, the imaging-related information as the position information of the camera is output.

Abstract: Imaging-related information such as information regarding the position or orientation of a camera is output in an appropriate manner. A control device according to the present technology includes: a determination unit that determines a usage mode of an imaging device; and a control unit that performs output control of imaging-related information related to the imaging device on the basis of the usage mode determined by the determination unit. Performing the output control of the imaging-related information on the basis of the usage mode of the imaging device makes it possible to perform control so as not to output unnecessary information according to the usage mode of the camera. For example, in a case of a fixed camera that does not move, the imaging-related information as position information of the camera is not output, and in a case of a handy camera that is assumed to move, the imaging-related information as the position information of the camera is output.

Abstract: An object is to facilitate tone adjustment. For this object, an image processing system according to the present technology includes: a setting value determination unit that determines a setting value of a tone curve characteristic to be applied to a linear image signal having a linear characteristic according to an operation of a user; a tone adjustment unit that applies the tone curve characteristic based on the determined setting value to the linear image signal; and an image signal output unit that outputs, as an output image signal, an image signal after tone curve application obtained by application of the tone curve characteristic to the linear image signal. This configuration facilitates tone adjustment.

Abstract: Mitigation of a discomfort of a user during brightness adjustment switching and curbing of deterioration in operability with respect to brightness adjustment are promoted while curbing of resolution decrease due to execution of only optical brightness adjustment is promoted. A switching unit that performs, in response to change in an indication value indicating the brightness of a captured image obtained by an imaging device, switching between optical brightness adjustment that is brightness adjustment according to an iris and electronic brightness adjustment that is brightness adjustment according to application of a gain depending on the indication value to the captured image, and a first delay unit that delays change in the gain with respect to change in the indication value in the electronic brightness adjustment are included.

Abstract: 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.

Abstract: Disclosed is an image data processing apparatus including a brightness detection part, a moving average calculation part, a change quantity detection part, a false correction determination part, and a correction part. The brightness detection part detects brightness of pixels in a prescribed range of each frame from image data acquired from an imaging device. The moving average calculation part calculates a moving average of prescribed cycles of the brightness to calculate a temporal average brightness value. The change quantity detection part detects a change quantity of an inclination of a waveform constituted of the temporal average brightness value. The false correction determination part determines a likelihood of false correction to the image data based on information representing a change of the inclination. The correction part corrects the image data acquired from the imaging device based on the determination result of the false correction determination part.