A flicker detection circuit is provided. The flicker detection circuit may include a flicker detection correlated double sampling (FD CDS) circuit including first to sixth switches turned on or off based on a control signal, and first to fourth capacitors, the FD CDS circuit being configured to receive a flicker pixel signal output from at least one pixel, summate with an output offset signal, and amplify the summation based on a gain to form a flicker detection signal; and an analog-to-digital converter (ADC) configured to quantize the flicker detection signal.

A radiation image capturing apparatus includes a sensor substrate including a flexible base material and plural pixels that accumulate charges generated in accordance with radiation, a flexible first cable including one ends electrically connected to a connection region disposed at a predetermined side of the sensor substrate, a first circuit substrate electrically connected to the other end of the first cable and in which a first component used for processing a digital signal in a circuit unit driven in a case of reading out the charges in the plural pixels is mounted, a flexible second cable including one end electrically connected to a connection region disposed at a side different from the predetermined side, and a second circuit substrate electrically connected to the other end of the second cable and in which a second component used for processing an analog signal in the circuit unit is mounted.

A solid-state imaging device capable of improving image quality and functionality is provided.

Provided is a solid-state imaging device including a pixel region in which a plurality of pixels are two-dimensionally disposed, in which each of the pixels includes a photoelectric conversion unit and a concavo-convex portion, the photoelectric conversion unit photoelectrically converting incident light formed on a semiconductor substrate, and the concavo-convex portion being positioned above the photoelectric conversion unit and formed on a light receiving surface side of the semiconductor substrate, and the number of irregularities of a concavo-convex portion included in a pixel disposed in a central portion of the pixel region and the number of irregularities of a concavo-convex portion included in a pixel disposed in a peripheral portion of the pixel region are different from each other.

Provided are an imaging apparatus and a method capable of capturing a high-quality multi spectral image. The imaging apparatus includes: an optical system that has three or more aperture regions at a pupil position or near the pupil position, each of the aperture regions being provided with a different combination of a polarizing filter and a bandpass filter such that the aperture region transmits light having a combination of a different polarization angle and a different wavelength range; an image sensor in which three or more types of pixels that receive light having different polarization angles are arranged two-dimensionally; and a processor that performs interference removal processing on a signal output from the image sensor and generates an image signal for each of the aperture regions. In a case where the optical system has three or more types of the polarizing filters and the polarizing filters are arranged in an order of the polarization angles, at least one of differences in the polarization angles of the adjacent polarizing filters is different from the others.

A system for obtaining color imagery using SPADs includes a SPAD array that has a plurality of SPAD pixels. Each of the plurality of SPAD pixels includes a respective color filter positioned thereover. The system is configurable to capture an image frame using the SPAD array and generate a filtered image by performing a temporal filtering operation using the image frame and at least one preceding image frame. The at least one preceding image frame is captured by the SPAD array at a timepoint that temporally precedes a timepoint associated with the image frame. The system is also configurable to, after performing the temporal filtering operation, generate a color image by demosaicing the filtered image.

A pixel array of an image sensor includes a plurality of pixel groups. Each pixel group includes a plurality of unit pixels adjacent to each other and respectively including photoelectric conversion elements disposed in a semiconductor substrate, a color filter shared by the plurality of unit pixels, and a plurality of microlenses disposed on the color filter and having sizes different from each other such that the plurality of microlenses respectively focus an incident light to the photoelectric conversion elements included in the plurality of unit pixels. Deviations of sensing sensitivity of unit pixels are reduced and quality of images captured by the image sensor is enhanced by adjusting sizes of microlenses.

There are provided an imaging device, a distance measurement method, a distance measurement program, and a recording medium capable of accurately measuring a distance to a subject without depending on a color of the subject. A bifocal imaging lens, a first pixel and a second pixel that respectively pupil-divide and selectively receive luminous flux incident through a first region of the first region and a second region having different focusing distances of the imaging lens, an image sensor having a third pixel and a fourth pixel corresponding to the second region, a first image acquisition unit (41-1) and a second image acquisition unit (41-2) that acquire a first image and a second image having asymmetric blurs from a first pixel group (22A) and a third pixel group (22C) of the image sensor, a third image acquisition unit (43-1) and a fourth image acquisition unit (43-2) that add pixel values of adjacent pixels of the first and second pixels of the image sensor and add pixel values of adjacent pixels of the third and fourth pixels to acquire a third image and a fourth image having symmetric blurs, and a distance calculation unit (45) that calculates a distance to a subject in the image based on the acquired first and third images or the acquired second and fourth images are included.

A solid-state imaging device includes a second image sensor having an organic photoelectric conversion film transmitting a specific light, and a first image sensor which is stacked in layers on a same semiconductor substrate as that of the second image sensor and which receives the specific light having transmitted the second image sensor, in which a pixel for focus detection is provided in the second image sensor or the first image sensor. Therefore, an AF method can be realized independently of a pixel for imaging.

Mobile terminal and image photographing method are provided. The mobile terminal includes first camera module and second camera module. First pixel array corresponding to first image sensor of the first camera module includes preset quantity of first pixel units arranged in first predetermined manner, and the first pixel unit includes first and second pixels. Second pixel array corresponding to the second image sensor includes preset quantity of second pixel units arranged in second predetermined manner, and the second pixel unit includes first pixel. The first pixel includes red, green, and blue subpixels. The second pixel includes the green subpixel and infrared subpixel, and at least one of the red subpixel and the blue subpixel. The first pixel and the second pixel are full-pixel dual-core focus pixels, and each of the first pixel and the second pixel includes four full-pixel dual-core focus subpixels.

Provided are a solid state imaging device, an imaging apparatus, and an imaging method that may acquire a desired image without using a frame memory. The solid state imaging device includes: a sensor unit that generates pulses at a frequency in accordance with a frequency of photon reception; a count unit that generates an image signal by counting the number of signals generated from the sensor unit; and a processing unit that performs a predetermined process on a count value obtained in acquisition of a first image signal, and the count unit combines a second image signal and a value obtained by performing a predetermined process on the count value obtained in the acquisition of the first image signal to generate a third image signal.