Abstract: An image processing apparatus including a tone correction unit configured to generate a plurality of tone correction signals by converting tone characteristics of a plurality of image signals in different wavelength bands, an edge enhancement unit configured to generate an edge enhancement signal by performing predetermined processing with respect to at least one image signal of the plurality of image signals, and a combining unit configured to combine a signal based on the plurality of tone correction signals and the edge enhancement signal is provided. The tone correction unit is configured to generate at least two tone correction signals by converting tone characteristics of at least two image signals of the plurality of image signals while maintaining ratios between pixels respectively corresponding to the at least two image signals.

Abstract: An imaging apparatus includes an optical element configured to separate incident light into light components in at least two types of wavelength bands. The incident light includes light emitted from a narrow-band light source. At least one light component of the light components in the at least two types of wavelength bands separated by the optical element is light in a narrow band separated by a bandwidth corresponding to a width of a wavelength of the light emitted from the narrow-band light source.

Abstract: An imaging apparatus according to an embodiment includes a first light source which emits first light, a second light source which emits second light, an imaging sensor, and control circuitry. The image sensor includes a plurality of pixels to receive light from an object, reads an electric signal generated by the pixel with a rolling shutter method, and outputs the electric signal for each frame. The control circuitry causes the first light source to be turned on M (M is an integer equal to or less than N) times in N frames in synchronization with a first period based on a blanking period of the frame, and causes the second light source to be turned on by selectively using multiple lighting patterns in which lighting timing is set in synchronization with the first period and a total lighting period in the N frames is different.

Abstract: An imaging apparatus includes an optical element configured to separate incident light into light components in at least three types of wavelength bands, and a plurality of imaging elements configured to receive the light components in the at least three types of wavelength bands separated by the optical element, respectively. At least one imaging element of the plurality of imaging elements has a function of further separating a wavelength band of light that has entered the imaging element into at least two types of wavelength bands.

Abstract: An imaging apparatus includes an optical element configured to separate incident light into light components in at least two types of wavelength bands. The incident light includes light emitted from a narrow-band light source. At least one light component of the light components in the at least two types of wavelength bands separated by the optical element is light in a narrow band separated by a bandwidth corresponding to a width of a wavelength of the light emitted from the narrow-band light source.

Abstract: An imaging apparatus includes an optical element configured to separate incident light into light components in at least two types of wavelength bands, and a plurality of imaging elements configured to receive the light components in the at least two types of wavelength bands separated by the optical element, respectively. When pixels that have undergone binning processing are regarded as one pixel on a group basis, pixels of at least one imaging element of the plurality of imaging elements are arranged with a shift of a half pixel in at least one direction of a horizontal direction and/or a vertical direction with respect to pixels of at least one other imaging element.

Abstract: According to one embodiment, an imaging apparatus includes an image sensor, image generation circuitry, calculation circuitry and superimposition circuitry. The image generation circuitry successively generates a first image and a second image. The calculation circuitry calculates a first parameter to allow brightness of the first image to be equal to or close to a predetermined value, and calculates a second parameter relating to brightness of the second image based on the first parameter and a predetermined ratio. The superimposition circuitry generates a composite image by superimposing the second image in which the brightness is adjusted using the second parameter onto the first image in which the brightness is adjusted using the first parameter.

Abstract: An imaging device according to an embodiment includes an image sensor, and processing circuitry. The image sensor is a rolling-shutter type image sensor that includes a plurality of pixels that are arranged in a matrix and generate an electric signal due to light received and, on a frame-to-frame basis, repeatedly performs a process to sequentially start to conduct exposure on at least every line, starting from the first line of the pixels to the last line, and output the electric signal sequentially from the line for which exposure has been completed. The processing circuitry causes the pixels to receive light during only a period based on the blanking period that corresponds to the period from when the output of the electric signal from the last line is finished until the output of the electric signal from the first line is started. The processing circuitry generates images in accordance with the electric signal.

Abstract: An imaging apparatus according to an embodiment includes a first light source which emits first light, a second light source which emits second light, an imaging sensor, and control circuitry. The image sensor includes a plurality of pixels to receive light from an object, reads an electric signal generated by the pixel with a rolling shutter method, and outputs the electric signal for each frame. The control circuitry causes the first light source to be turned on M (M is an integer equal to or less than N) times in N frames in synchronization with a first period based on a blanking period of the frame, and causes the second light source to be turned on by selectively using multiple lighting patterns in which lighting timing is set in synchronization with the first period and a total lighting period in the N frames is different.

Abstract: According to one embodiment, an imaging apparatus includes an image sensor, image generation circuitry, calculation circuitry and superimposition circuitry. The image generation circuitry successively generates a first image and a second image. The calculation circuitry calculates a first parameter to allow brightness of the first image to be equal to or close to a predetermined value, and calculates a second parameter relating to brightness of the second image based on the first parameter and a predetermined ratio. The superimposition circuitry generates a composite image by superimposing the second image in which the brightness is adjusted using the second parameter onto the first image in which the brightness is adjusted using the first parameter.

Abstract: An imaging device according to an embodiment includes an image sensor, and processing circuitry. The image sensor is a rolling-shutter type image sensor that includes a plurality of pixels that are arranged in a matrix and generate an electric signal due to light received and, on a frame-to-frame basis, repeatedly performs a process to sequentially start to conduct exposure on at least every line, starting from the first line of the pixels to the last line, and output the electric signal sequentially from the line for which exposure has been completed. The processing circuitry causes the pixels to receive light during only a period based on the blanking period that corresponds to the period from when the output of the electric signal from the last line is finished until the output of the electric signal from the first line is started. The processing circuitry generates images in accordance with the electric signal.

Abstract: A head of an imaging apparatus of an embodiment includes: an imaging element having a rolling shutter function and configured to output an analog image signal in correspondence with a light amount of an object of shooting; an analog amplifier configured to amplify or attenuate a signal level of the analog image signal outputted from the imaging element in correspondence with an inputted gain to output the amplified or attenuated analog image; a converter configured to convert the amplified or attenuated analog image signal outputted from the analog amplifier into a digital signal to output the digital signal, and clip the digital signal of which the signal level exceeds a maximum output level, at the maximum output level; and a gain controller configured to control a gain inputting to the analog amplifier in a range including a minus gain.

Abstract: According to one embodiment, a head separation camera apparatus includes an imaging device, a control device and a cable. The control device includes a first controller. The first controller is configured to output the control signal including a selection command to notify a controlled device acting as a control target from one or more controlled devices in the imaging device and control data indicating contents of control of the control target. The imaging device includes a second controller. The second controller is configured to transmit an individual selection command to inform whether or not a device is the control target and the control data to at least the controlled device acting as the control target, based on the selection command.

Abstract: According to one embodiment, a method for controlling a head-separated camera device in which a camera head and a camera control unit are connected to each other by a cable comprising a line that supplies the camera head with serial data from the camera control unit. The method comprises outputting, by the camera control unit, serial data containing information for specifying a predetermined control target device of a plurality of control target devices to be controlled, where the plurality of control target devices are implemented within the camera head. The method further comprises identifying, by the camera head, the predetermined control target device specified by the serial data received, and supplying the predetermined control target device with an active select signal.

Abstract: According to one embodiment, a camera control unit outputs serial data containing information for specifying a predetermined control target device to be controlled from among plural control target devices comprised in a camera head. The camera head identifies the control target device specified by the received serial data, and supplies the identified control target device with a select signal for an active state.

Abstract: According to one embodiment, a head-separated device has an imaging unit, a control unit configured to control the imaging unit and a connection unit configured to connect the imaging unit with the control unit, wherein the imaging unit comprises sensor configured to capture an image, and a transmitter configured to transmit a video signal, a sync signal (HD, VD) and a clock signal to restore or to reproduce the image captured by the sensor, and the control unit comprises a determining module configured to determine whether a waveform of the video signal has a level that the video processor is processable, and a setting module configured to set the transmitter to perform enhancement correction to the video signal, if the determining module determines that the waveform of the video signal does not have the level that the video processor is processable.

Abstract: According to one embodiment, a head separation camera apparatus includes an imaging device, a control device and a cable. The control device includes a first controller. The first controller is configured to output the control signal including a selection command to notify a controlled device acting as a control target from one or more controlled devices in the imaging device and control data indicating contents of control of the control target. The imaging device includes a second controller. The second controller is configured to transmit an individual selection command to inform whether or not a device is the control target and the control data to at least the controlled device acting as the control target, based on the selection command.

Abstract: According to one embodiment, a head-separated device has an imaging unit, a control unit configured to control the imaging unit and a connection unit configured to connect the imaging unit with the control unit, wherein the imaging unit comprises sensor configured to capture an image, and a transmitter configured to transmit a video signal, a sync signal (HD, VD) and a clock signal to restore or to reproduce the image captured by the sensor, and the control unit comprises a determining module configured to determine whether a waveform of the video signal has a level that the video processor is processable, and a setting module configured to set the transmitter to perform enhancement correction to the video signal, if the determining module determines that the waveform of the video signal does not have the level that the video processor is processable.

Abstract: According to one embodiment, a camera control unit outputs serial data containing information for specifying a predetermined control target device to be controlled from among plural control target devices comprised in a camera head. The camera head identifies the control target device specified by the received serial data, and supplies the identified control target device with a select signal for an active state.