Provided is an image-capturing device including: a visible light signal generating unit that extracts a visible light signal from a pixel signal from an image-capturing element; a light source color estimating unit that estimates a color temperature of a light source from the visible light signal; a white-balance adjusting unit that performs white balance correction on the visible light signal according to an estimation result; a non-visible light signal generating unit that extracts a non-visible light signal from the signals from the image-capturing element; and an image composing unit that combines and outputs the visible light signal on which the white balance correction was performed and the non-visible light signal.

Near infrared imaging is highly complementary to colour imaging having a wide range of applications. For example, in health applications, the near infrared can provide biomolecular information on tissue that is not apparent under visual examination nor from the inspection of colour images of tissue. Thus, there is utility in viewing both visible color and near infrared images in combination. Described herein are methods to perform visible and near infrared imaging as well as hybrid visible color and near infrared imaging with a single conventional color filter array RGB sensor. The methods automatically provide spatially co-registered color and near infrared images and the methods can be used as the basis for a multispectral or hyperspectral imaging system.

In various exemplary embodiments, optically sensitive devices comprise a plurality of pixel regions. Each pixel region includes an optically sensitive layer over a substrate and has subpixel regions for separate wavebands. A pixel circuit comprises a charge store and a read out circuit for each subpixel region. Circuitry is configured to select a plurality of subpixel elements from different pixels that correspond to the same waveband for simultaneous reading to a shared read out circuit.

An image sensor is provided. The image sensor includes an infrared receiving portion and a visible light receiving portion. The infrared receiving portion is configured to receive infrared. The visible light receiving portion is configured to receive a visible light. The visible light receiving portion includes an infrared cutoff filter grid configured to purify the visible light.

In various embodiments, image sensors and methods of making images sensors are disclosed. In an embodiment, an image sensor includes a first pixel region having a pixel electrode, an optically sensitive material of a first thickness, and a counterelectrode. The images sensor also includes a second pixel region comprising a pixel electrode, an optically sensitive material of a second thickness, and a counterelectrode. The first pixel region is configured to detect light in a first spectral band and the second pixel region is configured to detect light in a second spectral band. The first and second spectral bands include an overlapping spectral range. The second spectral band also includes a spectral range that is substantially undetectable by the first pixel region. Other image sensors and methods of making images sensors are also disclosed.

An image processing device includes: first and second illumination units that emit light to a subject in different directions; an image capturing unit that captures first and second images in a state where the first and second illumination units emit the light, respectively; and an image correction unit that compares a first luminance value of a first pixel configuring the first image with a second luminance value of a second pixel configuring the second image for each corresponding pixel, and generates a corrected image by performing correction processing to a synthesized image of the first and second images. The image correction unit calculates a difference between the first and second luminance values, and calculates a luminance correcting value based on the difference and a function which monotonically increases as the difference increases and whose increase rate gradually decreases, and generates the corrected image using the luminance correcting value.

Controlling integral energy of a light pulse in a hyperspectral, fluorescence, and laser mapping imaging system is disclosed. A system includes an emitter for emitting pulses of electromagnetic radiation and an image sensor comprising a pixel array for sensing reflected electromagnetic radiation. The system includes an electromagnetic sensor for sensing energy emitted by the emitter. The system includes a controller configured to synchronize timing of the emitter and the image sensor. The system is such that at least a portion of the pulses of electromagnetic radiation emitted by the emitter comprises one or more of a hyperspectral emission, a fluorescence emission, or a laser mapping pattern.

Driving an emitter to emit pulses of electromagnetic radiation according to a jitter specification in a hyperspectral, fluorescence, and laser mapping imaging system is described. A system includes an emitter for emitting pulses of electromagnetic radiation and an image sensor comprising a pixel array for sensing reflected electromagnetic radiation. The system includes a driver for driving emissions by the emitter according to a jitter specification. The system is h that at least a portion of the pulses of electromagnetic radiation emitted by the emitter comprises one or more of a hyperspectral emission, a fluorescence emission, and/or a laser mapping pattern.

An image sensor is provided. The image sensor includes an infrared receiving portion and a visible light receiving portion. The infrared receiving portion is configured to receive infrared. The visible light receiving portion is configured to receive a visible light. The visible light receiving portion includes an infrared cutoff filter grid configured to purify the visible light.

An image capturing apparatus includes a photometric sensor having a plurality of pixels having a sensitivity to an infrared light range and a visible light range, an acquisition unit that divides the photometric sensor into a plurality of pixel groups and acquires image information of the infrared light range and image information of the visible light range in each of the plurality of pixel groups, a subtraction unit that generates a visible light component obtained by subtracting an infrared light component that is based on the image information of the infrared light range from the image information of each of the plurality of pixel groups, and a processing unit that performs at least one of light source determination processing, specific color detection processing, and exposure amount determination processing, using the visible light component generated by the subtraction unit.