Patent classifications
H04N23/673
Image capturing apparatus, storage medium, and image capturing method
An image capturing apparatus capable of performing highly-accurate focus detection at a high frame rate with minimal time lag is provided with a focus position detection unit configured to calculate a focus position by using an image via an image capturing optical system, an aberration information acquisition unit configured to acquire aberration information of the image capturing optical system, a color information acquisition unit configured to acquire color information of a subject in a focus detection region, a first correction value calculation unit configured to calculate a first correction value for correcting the focus position based on the aberration information, a second correction value calculation unit configured to calculate a second correction value for correcting the focus position based on the first correction value and the color information, and a correction unit configured to correct the focus position by using the second correction value.
Apparatus, method thereof, and recording medium
An apparatus includes a reference coordinate selection unit configured to select reference coordinates of two points from a focus frame area set by a setting unit, and determines arrangement intervals of focus frames based on coordinates on image data before correction corresponding to the coordinates selected by the reference coordinate selection unit and a number of focus frames.
AUTOMATIC FOCUS DETECTION METHOD OF CAMERA AND ELECTRIC DEVICE SUPPORTING SAME
An electronic device includes a camera device configured to adjust a focus; a distance extraction device; and a processor configured to: obtain a first image using the camera device; set a first region of interest for focus detection in a portion of the first image; obtain first depth information using the distance extraction device, the first depth information including a depth distance corresponding to at least one pixel included in the first image; set a second region of interest in another portion of the first image based on at least two portions which differ in depth distance being included in the first region of interest based on the first depth information; and capture an image based on a focus determined corresponding to the second region of interest.
Edge detection signal processing
To satisfactorily detect an edge detection signal of a high frequency band from a captured image signal at all times. A filtering unit extracts an edge detection signal of a high frequency band from an image signal obtained from imaging, and a band control unit controls the high frequency band on the basis of lens information. For example, the filtering unit includes a first high-pass filter with a first cutoff frequency, a second high-pass filter with a second cutoff frequency that is lower than the first cutoff frequency, and an α blending unit that performs α blending on output of the first high-pass filter and output of the second high-pass filter. Even if the frequency of the edge detection signal included in the captured image signal varies due to a change in a zoom position, a lens model number, an F value or the like, the edge detection signal can be satisfactorily detected at all times.
Motion vector calculation device, imaging device, and motion vector calculation method
An optical device acquires event data based on an output of an event sensor detecting a change in luminance of a subject image and maps the event data acquired in a mapping time to generate a frame. The optical device performs control such that the mapping on the event data is overlapped partially in a plurality of the frames and calculates a motion vector based on the plurality of frames in which there is a difference of the mapping time at a start time of the mapping.
Imaging apparatus and display control method thereof
An imaging apparatus includes: a first display panel unit for executing display toward a user side; a second display panel unit for executing display toward a subject side; an imaging processing unit for subjecting incident light from the subject side to photoelectric conversion to obtain a captured image signal; a recording processing unit for executing a recording process to a recording medium regarding the captured image signal obtained at the imaging processing unit; and a control unit for controlling the display states of the first display panel unit and the second display panel unit for each of a plurality of various types of operation periods changing along with the operation of the imaging processing unit or the recording processing unit, and executing display control wherein the first display panel unit and the second display panel unit can have different display content during at least a single operation period.
Imaging device, focusing control method, and computer readable non-transitory recording medium storing a focusing control program
An imaging device and a focusing control method are provided. The imaging device includes: an imaging element, having pixels including phase-difference detecting pixels and imaging a subject through an imaging optical system including a focus lens; and a focusing controller, selectively performing focusing control using a phase difference AF method or focusing control using a contrast AF method in a mode in which focusing control for focusing on a main subject by driving the focus lens is continuously performed multiple times. The focusing controller performs the focusing control using the contrast AF method in a case where a state in which a degree of reliability of the focusing control using the phase difference AF method is equal to or less than a threshold value persists N times (N=2 or more), while the focusing control using the phase difference AF method is continuously performed.
METHOD OF DETECTING AND CORRECTING FOCUS DRIFT OF VARIABLE FOCUS LENS FOR FIXED FOCUS APPLICATIONS
A method for correcting focus drift of an imaging system. The method includes an imaging system obtaining a plurality of images of an object of interest with each image obtained at a different focus of the imaging system. A processor then determines image property values of each image of the plurality of images and determines an image quality metric from each image of the plurality of images. The processor then compares the image quality metric to a reference metric and determines, based on the comparison, if a focus drift has occurred, and further adjusts a focus of the imaging system if a focus drift has occurred.
Image sensor with photoelectric conversion units arranged in different directions
An imaging device includes: a first image sensor comprising first pixels that receive incident light, and that include a first and second photoelectric conversion units that are arranged in a first direction; and a second image sensor including second pixels that receive light that has passed through the first image sensor, and that include a third and fourth photoelectric conversion units that are arranged in a second direction that is different from the first direction.
IMAGING APPARATUS
An imaging apparatus includes: an image sensor that captures a subject image formed via an optical system to generate image data; a controller that controls an autofocus operation to focus the optical system; and an image recognizer that identifies, based on the image data, information including a class of a subject in an image shown by the image data, wherein the controller acquires the information identified by the image recognizer to automatically set a parameter indicating characteristics of the autofocus operation, based on a tendency to be estimated as possibility for the subject of the identified class to move on the image.