Abstract: An image pickup apparatus that is capable of preventing hunching certainly at low cost and of switching between the day mode and the night mode at an optimal timing. An image sensor outputs an image signal depending on an optical image formed through an image pickup optical system. A mode setting unit sets a photographing mode for photographing using the image sensor from among a day mode and a night mode in which sensitivity for a wavelength range corresponding to infrared light is higher than that in the day mode. An obtaining unit obtains ratio information about the ratios of the infrared light and visible light based on the image signal in the night mode. A condition setting unit sets a determination condition that is used for switching the photographing mode to the day mode from the night mode based on the ratio information.

Abstract: A control apparatus includes a controlling unit configured to control tilt driving for tilting at least one of an image sensor and an imaging optical system relative to a plane orthogonal to an optical axis and focus driving for moving a focus lens in an optical axis direction, an acquiring unit configured to acquire focus levels in a first area and a second area in an image captured by an image pickup apparatus, a first determining unit configured to determine whether to perform the tilt driving or the focus driving, based on an in-focus level, and a second determining unit configured to determine a driving direction of the tilt driving or the focus driving based on the in-focus level.

Abstract: There is provided with an information processing apparatus. A control unit performs tilt control for tilting an image capturing element with respect to a plane perpendicular to an optical axis of an image capturing optical system about a rotation axis, and perform focus control for moving a focus lens in a direction of the optical axis. A setting unit sets a target region in a captured image obtained by an image capturing unit. A determining unit determines, based on a position corresponding to a position of the rotation axis in the image and a position of the target region in the image, a correction amount of a position of the focus lens, wherein the focus lens is moved based on the correction amount.

Abstract: A control apparatus includes an acquiring unit configured to acquire a contrast evaluation value for each of a plurality of areas in an image, and a controlling unit configured to detect an in-focus position of a focus lens for each of the plurality of areas based on the contrast evaluation value. The controlling unit determines whether or not the focus lens approaches the in-focus position of each of the plurality of areas based on the contrast evaluation value. The controlling unit determines a driving direction of the focus lens based on a result of a determination. When detecting the in-focus position of one area of the plurality of areas, the controlling unit determines the driving direction of the focus lens based on the contrast evaluation value of another area of the plurality of areas other than the one area.

Abstract: An image-capturing apparatus includes a controller configured to perform tilt control in which an image sensor is tilted about a rotation axis with respect to a plane orthogonal to an optical axis of an image-capturing optical system, a focus position determiner configured to determine a position of a focus lens, a first area detector configured to detect a first area corresponding to the rotation axis in a captured image, and a second area detector configured to detect a second area which is an area to be focused by the tilt control, wherein the focus position determiner determines a third area in which the first area and the second area overlap as a focus position before the tilt control, and wherein the controller performs the tilt control after the position of the focus lens is adjusted so that the third area is in focus.

Abstract: A control apparatus includes an acquiring unit configured to acquire a contrast evaluation value for each of a plurality of areas in an image, and a controlling unit configured to detect an in-focus position of a focus lens for each of the plurality of areas based on the contrast evaluation value. The controlling unit determines whether or not the focus lens approaches the in-focus position of each of the plurality of areas based on the contrast evaluation value. The controlling unit determines a driving direction of the focus lens based on a result of a determination. When detecting the in-focus position of one area of the plurality of areas, the controlling unit determines the driving direction of the focus lens based on the contrast evaluation value of another area of the plurality of areas other than the one area.

Abstract: An image pickup apparatus that is capable of preventing hunching certainly at low cost and of switching between the day mode and the night mode at an optimal timing. An image sensor outputs an image signal depending on an optical image formed through an image pickup optical system. A mode setting unit sets a photographing mode for photographing using the image sensor from among a day mode and a night mode in which sensitivity for a wavelength range corresponding to infrared light is higher than that in the day mode. An obtaining unit obtains ratio information about the ratios of the infrared light and visible light based on the image signal in the night mode. A condition setting unit sets a determination condition that is used for switching the photographing mode to the day mode from the night mode based on the ratio information.

Abstract: A control apparatus includes a tilt driving unit configured to tilt at least one of an image sensor and an imaging optical system relative to a plane orthogonal to an optical axis, a focus driving unit configured to perform focus driving by moving a focus lens that constitutes at least part of the imaging optical system in an optical axis direction, and a controlling unit configured to control the focus driving unit and the tilt driving unit so as to adjust a focal plane to a predetermined surface. The controlling unit moves the focal plane in a vertical direction to the focal plane while maintaining the focal plane substantially parallel to the predetermined plane.

Abstract: A control apparatus includes a controlling unit configured to control tilt driving for tilting at least one of an image sensor and an imaging optical system relative to a plane orthogonal to an optical axis and focus driving for moving a focus lens in an optical axis direction, an acquiring unit configured to acquire focus levels in a first area and a second area in an image captured by an image pickup apparatus, a first determining unit configured to determine whether to perform the tilt driving or the focus driving, based on an in-focus level, and a second determining unit configured to determine a driving direction of the tilt driving or the focus driving based on the in-focus level.

Abstract: In order to provide a tilt control device capable of performing tilt control optimal at a high speed by controlling both a focus position and a tilt angle even when a scene changes such as in a case in which a subject changes, there is provided an imaging apparatus including a tilt control unit that performs tilt control by driving at least one of an imaging device and an imaging optical system, a focus lens driving unit that drives a focus lens, and a control unit that has a plurality of control modes for performing focus correction using at least one of the tilt control unit and the focus lens driving unit and selects one of the plurality of control modes in accordance with the number of subject areas displayed on an image screen.

Abstract: An image-capturing apparatus includes a controller configured to perform tilt control in which an image sensor is tilted about a rotation axis with respect to a plane orthogonal to an optical axis of an image-capturing optical system, a focus position determiner configured to determine a position of a focus lens, a first area detector configured to detect a first area corresponding to the rotation axis in a captured image, and a second area detector configured to detect a second area which is an area to be focused by the tilt control, wherein the focus position determiner determines a third area in which the first area and the second area overlap as a focus position before the tilt control, and wherein the controller performs the tilt control after the position of the focus lens is adjusted so that the third area is in focus

Abstract: A focus control apparatus includes a controller configured to provide a focus control that holds an object distance on which an image capturing optical system is focused that includes a magnification varying lens and a focus lens, and a calculator configured to calculate a defocus amount by using information on lens sensitivity that represents a relationship between a unit moving amount of the magnification varying lens and a moving amount of an image plane in the image capturing optical system, and information on error amounts of stop positions of the magnification varying lens and that of the focus lens. The controller moves the focus lens in a moving range limited based on the defocus amount.

Abstract: An image pickup apparatus that is capable of preventing hunching certainly at low cost and of switching between the day mode and the night mode at an optimal timing. An image sensor outputs an image signal depending on an optical image formed through an image pickup optical system. A mode setting unit sets a photographing mode for photographing using the image sensor from among a day mode and a night mode in which sensitivity for a wavelength range corresponding to infrared light is higher than that in the day mode. An obtaining unit obtains ratio information about the ratios of the infrared light and visible light based on the image signal in the night mode. A condition setting unit sets a determination condition that is used for switching the photographing mode to the day mode from the night mode based on the ratio information.

Abstract: An image capturing apparatus includes an image capturing unit configured to capture an image focused on a light receiving surface, a gain unit configured to multiply a gain to an image signal output from the image capturing unit and be able to electronically change brightness of an image that the image signal represents, and a focus signal generating unit configured to extract a signal in a frequency band from the image signal output from the gain unit and generate a focus signal from the extracted signal. The focus signal generating unit changes the frequency band for the signal to be used in generating the focus signal in accordance with the magnitude of the gain.

Abstract: An image pickup apparatus capable of accurately inserting/removing an infrared light reduction section. An infrared cut filter is inserted between a photographic optical system and an image pickup device to reduce infrared light contained in an optical image. If an object luminance acquired based on an optical image is lower than a first threshold, a camera control circuit calculates a second threshold for comparison with the object luminance and a third threshold value for comparison with an object luminance detected by a luminance sensor, based on the object luminances and the first threshold, and one of the second and third thresholds is made equal to or higher than the other. The infrared cut filter is selectively inserted or removed based on the object luminances, the second and third switching threshold values.

Abstract: A focus control apparatus includes a controller configured to provide a focus control that holds an object distance on which an image capturing optical system is focused that includes a magnification varying lens and a focus lens, and a calculator configured to calculate a defocus amount by using information on lens sensitivity that represents a relationship between a unit moving amount of the magnification varying lens and a moving amount of an image plane in the image capturing optical system, and information on error amounts of stop positions of the magnification varying lens and that of the focus lens. The controller moves the focus lens in a moving range limited based on the defocus amount.

Abstract: An image pickup apparatus capable of accurately inserting/removing an infrared light reduction section. An infrared cut filter is inserted between a photographic optical system and an image pickup device to reduce infrared light contained in an optical image. If an object luminance acquired based on an optical image is lower than a first threshold, a camera control circuit calculates a second threshold for comparison with the object luminance and a third threshold value for comparison with an object luminance detected by a luminance sensor, based on the object luminances and the first threshold, and one of the second and third thresholds is made equal to or higher than the other. The infrared cut filter is selectively inserted or removed based on the object luminances, the second and third switching threshold values.

Abstract: An image capturing apparatus includes an image capturing unit configured to capture an image focused on a light receiving surface, a gain unit configured to multiply a gain to an image signal output from the image capturing unit and be able to electronically change brightness of an image that the image signal represents, and a focus signal generating unit configured to extract a signal in a frequency band from the image signal output from the gain unit and generate a focus signal from the extracted signal. The focus signal generating unit changes the frequency band for the signal to be used in generating the focus signal in accordance with the magnitude of the gain.

Abstract: An image pickup apparatus capable of accurately inserting/removing an infrared light reduction section. An infrared cut filter is inserted between a photographic optical system and an image pickup device to reduce infrared light contained in an optical image. If an object luminance acquired based on an optical image is lower than a first threshold, a camera control circuit calculates a second threshold for comparison with the object luminance and a third threshold value for comparison with an object luminance detected by a luminance sensor, based on the object luminances and the first threshold, and one of the second and third thresholds is made equal to or higher than the other. The infrared cut filter is selectively inserted or removed based on the object luminances, the second and third switching threshold values.

Abstract: An image pickup apparatus capable of accurately inserting/removing an infrared light reduction section. An infrared cut filter is inserted between a photographic optical system and an image pickup device to reduce infrared light contained in an optical image. If an object luminance acquired based on an optical image is lower than a first threshold, a camera control circuit calculates a second threshold for comparison with the object luminance and a third threshold value for comparison with an object luminance detected by a luminance sensor, based on the object luminances and the first threshold, and one of the second and third thresholds is made equal to or higher than the other. The infrared cut filter is selectively inserted or removed based on the object luminances, the second and third switching threshold values.