Abstract: The image-capturing apparatus (100) includes an image sensor (14), a focus detector (42) performing focus detection using output from the image sensor; and a controller (50) configured to cause the focus detector to perform the focus detection and configured to control emission of a light emitter for illuminating an object and movement of a focus element for focusing. The controller selectively performs: a first focus detection process that causes the focus detector to perform the focus detection with the focus element being stopped while causing the light emitter to intermittently emit light; and a second focus detection process that causes the focus detector to perform the focus detection with the focus element being moved while causing the light emitter to intermittently emit the light.

Abstract: An image capturing apparatus includes an image sensor and a focus detector. The focus detector corrects a result of the focus detection by using a difference between a first focus position calculated as a focus position in image capturing by using aberration information of the image capturing optical system and first calculation information according to a spectroscopic characteristic of first light and a second focus position calculated as a focus position in the focus detection by using the aberration information and second calculation information according to the spectroscopic characteristic of the first light, and changes the second calculation information in the focus detection between when second light having a spectroscopic characteristic different from that of the first light is emitted to the object, and when the second light is not emitted.

Abstract: An image processing device is provided that includes: an acquisition unit that acquires a plurality of viewpoint images which are captured at a plurality of different viewpoints by an imaging unit; a detection unit that detects viewpoint-relevant information between the plurality of viewpoint images; a determination unit that determines a second imaging condition in which image change between before and after predetermined image processing is greater than that in a first imaging condition in which the plurality of viewpoint images are captured on the basis of the first imaging condition and the viewpoint-relevant information; and an output unit that outputs the second imaging condition determined by the determination unit.

Abstract: An imaging apparatus includes an image acquisition unit that acquires a plurality of viewpoint images, an operation information acquisition unit that acquires imaging conditions when the viewpoint image is captured, and a compression unit that compresses the viewpoint image to be recorded on a flash memory (133), and the compression unit compresses the viewpoint image according to imaging conditions such as ISO sensitivity and an aperture value or a value of contrast information corresponding to a contrast distribution. The compression unit changes a compression rate for compressing the viewpoint image according to the imaging conditions or the value of the contrast information.

Abstract: An image capturing apparatus includes an image sensor that has a plurality of two-dimensionally arrayed pixels, each of the pixels having a first photoelectric conversion portion and a second photoelectric conversion portion, a generation unit that generates a first image signal by connecting, in a pupil divided direction, a first signal obtained by combining signals of the first photoelectric conversion portions, and generate a second image signal, in the pupil divided direction, a second signal obtained by combining signals of the second photoelectric conversion portions. In a case of combing signals of the first photoelectric conversion portions, or combining signals of the second photoelectric conversion portions, the generation unit decreases weighting of a signal of a photoelectric conversion portion in which an effect of crosstalk from a neighboring photoelectric conversion portion is large.

Abstract: An image processing apparatus comprises at least one processor or circuit configured to perform the operations of following units: an obtaining unit configured to obtaining an image signal containing intensity information and angle information of an incident light beam, an operating unit configured to obtain a viewpoint changing operation and a focus position changing operation, and a processing unit configured to generate, based on a plurality of viewpoint images obtained based on the image signal, a display image by changing a viewpoint in accordance with the viewpoint changing operation, and changing a focus position in accordance with the focus position changing operation.

Abstract: An imaging element of an imaging apparatus has a configuration in which a plurality of pixels provided with a plurality of photoelectric conversion units for receiving light fluxes transmitting each of different pupil partial regions of an image forming optical system are arrayed. A CPU performs control to acquire a plurality of viewpoint images corresponding to different pupil partial regions from the imaging element and to generate output images using an image processing unit. The CPU and the image processing unit sets a detection range of an image shift amount using a photographing condition of an input image and a conversion coefficient for a conversion an image shift amount to a defocus amount, generates an image shift amount distribution of the detection range on the basis of a plurality of viewpoint images, and generates an image shift difference amount distribution. Image processing in accordance with the image shift amount distribution is performed to generate refocused images as output images.

Abstract: An image processing apparatus includes: a memory configured to acquire a plurality of visual point images; a visual point change processing unit configured to perform image processing on image data based on the plurality of visual point images to generate a combination image; an area designation unit configured to designate an area subjected to the image processing using the visual point change processing unit; and an adjustment unit configured to set an adjustable range of the image processing for each area designated by the area designation unit.

Abstract: An image processing apparatus is provided that includes an acquisition unit configured to acquire a plurality of viewpoint images having different viewpoint; a calculation unit configured to calculate associated information associated with parallax from the plurality of viewpoint images; an image processing unit configured to generate an output image by performing an image process on image data based on the plurality of viewpoint images; a setting unit configured to set the image process using the image processing unit; and a determination unit configured to acquire the associated information, determine an effect of the image process for each area in the output image, and output the determination result.

Abstract: Provided is an image pickup apparatus including pixels each divided into subpixels that receive respective rays of a pencil having passed through different pupil subregions in an optical system, the apparatus having a viewpoint image generation unit that generates viewpoint images based on pixel signals outputted by the subpixels, an image deviation amount calculation unit that calculates an image deviation amount from the viewpoint images, a conversion factor calculation unit that calculates a conversion factor for use in conversion of the image deviation amount into a defocus amount, and a recording unit that records at least two of the conversion factor, the image deviation amount, and the defocus amount in a storage medium as metadata in association with the viewpoint images or an image obtained from the viewpoint images.

Abstract: An imaging element of an imaging apparatus includes a plurality of microlenses and a plurality of photoelectric conversion units corresponding to the microlenses. A parallax picture having a parallax is generated by acquiring signals from the plurality of photoelectric conversion units. A CPU performs defective pixel detection by calculating an evaluation value from a first output value which is an output value of a detection pixel and a second output value determined from a pixel adjacent to the pixel and comparing the evaluation value with a predetermined threshold value. The CPU calculates a second evaluation value using the second output value and a first evaluation value derived from the first output value and the second output value and detects the pixel as a defective pixel if the second evaluation value is greater than the threshold value.

Abstract: An image capturing apparatus comprises an image pickup device with a plurality of pixels each of which includes at least two photoelectric conversion portions, a readout unit configured to read out a first image signal and an added signal obtained by adding the first image signal and a second image signal, a subtraction unit configured to subtract the first image signal from the added signal, a focus detection unit configured to detect a focus state based on the first and the second image signal, and a limiter unit configured to suppress an output of the first photoelectric conversion portion and an output of the second photoelectric conversion portion not to exceed a predetermined threshold, wherein the limiter unit suppresses the output of the first photoelectric conversion portion and the second photoelectric conversion portion for different color filters.

Abstract: A focusing device that is capable of shortening focusing time even when contrast AR is started for an object in a defocus state. A first computation unit computes a contrast determination index that indicates contrast of an object based on an image obtained through an image pickup optical system. A second computation unit computes a focusing degree that indicates a degree of a focusing state to the object based on the image. A first setting unit sets up a contrast determination threshold according to the focusing degree. A second setting unit sets up an image pickup cycle for picking up the object according to the contrast determination index and the contrast determination threshold. A focusing unit focuses on the object by driving a focusing lens of the image pickup optical system along an optical axis based on the contrast determination index and the focusing degree.

Abstract: An imaging element includes a plurality of photoelectric conversion units which photoelectrically convert an optical image of a subject imaged by an imaging optical system into an electrical signal. A first photoelectric conversion unit receives light passing through a first pupil area of the imaging optical system and a second photoelectric conversion unit receives light passing through a second pupil area of the imaging optical system. An imaging processing unit acquires a first image signal obtained from the first photoelectric conversion unit and a third image signal obtained from the first and the second photoelectric conversion units, and generates a second image signal by subtracting the first image signal from the third image signal.

Abstract: The trimming range of a reference current is extended larger than that of the related art. A semiconductor device includes a reference current generating circuit that generates a reference current. The reference current includes a first base current, a second base current base current, a second base current, a temperature compensating current, and a voltage compensating current. The first base current can be trimmed. The second base current flowing opposite to the first base current can be trimmed. The temperature compensating current flows in the same direction as the first base current and has higher temperature dependence than the first and second base currents. The voltage compensating current flows in the same direction as the first base current and depends on power supply voltages more than the base currents.

Abstract: A focusing device that is capable of shortening focusing time even when contrast AR is started for an object in a defocus state. A first computation unit computes a contrast determination index that indicates contrast of an object based on an image obtained through an image pickup optical system. A second computation unit computes a focusing degree that indicates a degree of a focusing state to the object based on the image. A first setting unit sets up a contrast determination threshold according to the focusing degree. A second setting unit sets up an image pickup cycle for picking up the object according to the contrast determination index and the contrast determination threshold. A focusing unit focuses on the object by driving a focusing lens of the image pickup optical system along an optical axis based on the contrast determination index and the focusing degree.

Abstract: The trimming range of a reference current is extended larger than that of the related art. A semiconductor device includes a reference current generating circuit that generates a reference current. The reference current includes a first base current, a second base current base current, a second base current, a temperature compensating current, and a voltage compensating current. The first base current can be trimmed. The second base current flowing opposite to the first base current can be trimmed. The temperature compensating current flows in the same direction as the first base current and has higher temperature dependence than the first and second base currents. The voltage compensating current flows in the same direction as the first base current and depends on power supply voltages more than the base currents.

Abstract: An image capturing apparatus comprises an image pickup device with a plurality of pixels each of which includes at least two photoelectric conversion portions, a readout unit configured to read out a first image signal and an added signal obtained by adding the first image signal and a second image signal, a subtraction unit configured to subtract the first image signal from the added signal, a focus detection unit configured to detect a focus state based on the first and the second image signal, and a limiter unit configured to suppress an output of the first photoelectric conversion portion and an output of the second photoelectric conversion portion not to exceed a predetermined threshold, wherein the limiter unit suppresses the output of the first photoelectric conversion portion and the second photoelectric conversion portion for different color filters.

Abstract: There is provided a focus control apparatus. A first extraction unit extracts frequency components of a first band from a predetermined evaluation area of image data generated by an image capturing unit. A change unit changes the evaluation area based on the frequency components extracted by the first extraction unit, so that the evaluation area after the change is narrower than the evaluation area before the change. A second extraction unit extracts, from the evaluation area after the change, frequency components of a second band that includes a higher band than the first band. A calculation unit calculates a focus evaluation value for performing focus control of the image capturing unit based on the frequency components extracted by the second extraction unit.

Abstract: An image capturing apparatus comprises an image pickup device with a plurality of pixels each of which includes at least two photoelectric conversion portions, a readout unit configured to read out a first image signal and an added signal obtained by adding the first image signal and a second image signal, a subtraction unit configured to subtract the first image signal from the added signal, a focus detection unit configured to detect a focus state based on the first and the second image signal, and a limiter unit configured to suppress an output of the first photoelectric conversion portion and an output of the second photoelectric conversion portion not to exceed a predetermined threshold, wherein the limiter unit suppresses the output of the first photoelectric conversion portion and the second photoelectric conversion portion for different color filters.