Canon Kabushiki Kaisha

Kota Terayama

Shinya Hirai

Kazuki Konishi

Akihiko Shiraishi

Hiroaki Nashizawa

Yasuyoshi Miyazaki

Masaaki Uenishi

An image processing apparatus that composites a plurality of images that have been captured with different exposure amounts, the image processing apparatus comprising at least one processor and/or circuit configured to function as following units: a specification unit configured to specify a signal value indicating an upper limit value of an output dynamic range with respect to at least one of the plurality of images; and a decision unit configured to decide on composition percentages of the plurality of images based on the signal value specified by the specification unit.

Image processing apparatus, image capturing apparatus, control method, and storage medium

An apparatus includes an image capture unit which includes an image sensor in which pixels for photoelectrically converting an object image are two-dimensionally arrayed in correspondence with color filters of a plurality of colors, and generates an image signal, a reducing unit which reduces the image signal output from the image capture unit to generate a reduced image, an image processing unit which performs development processing for the reduced image to obtain a first developed image containing luminance components and color difference components and performs development for the image signal output from the image capture unit to obtain a second developed image containing luminance and color difference components, an enlargement unit which enlarges the first developed image to the same size as that of the second developed image, and a composition unit which performs composition of the second developed image and an enlarged image.

Image capture apparatus, method of controlling the same, and program

An apparatus comprises a face position detection section for detecting at least a position at which is present a person's face inside a frame using an image signal obtained from an image sensor for photoelectrically converting an object image captured by a photographing optical system, a focus control section for controlling the photographing optical system by referencing in-focus positions of the object image obtained inside focus detection areas for detecting focus states of the object image positioned in the frame, and a control section for controlling the focus control section so as to reference at least one or the other of an in-focus position obtained in a first focus detection area in which is present a person's face and an in-focus position obtained in a second focus detection area in which is expected to be present a body of a person determining from the position of the face of the person.

Focus adjustment method, focus adjustment apparatus, and control method thereof

A focusing device includes a driving unit that drives a focus lens, a control unit, and a storing unit. The control unit controls the driving unit to move the focus lens through a predetermined range, determines a state of focus based on a signal from an image pickup unit, the signal being acquired in association with movement of the focus lens through the predetermined range, and controls the driving unit so that an object's image is in focus. The storing unit stores a position of the focus lens in focus acquired by the control unit. The control unit calculates a datum point of the range of movement of the focus lens, on the basis of the position of the focus lens in the storing unit, and shifts the range of movement of the focus lens in response to the calculated datum point in a direction in which the object moves.

Focusing device, image pickup apparatus, and control method

An image-taking apparatus is disclosed, which is capable of reducing the influence of the one-side blur by the automatic focusing function. The image-taking apparatus comprises a focus detector, which detects the focus state of the plurality of focus detection areas, and a selector, which selects a focus target area from a plurality of focus detection area based on the detection result of the focus detector. In a case where a first object distance to a first object is longer than a first predetermined distance, and a second object distance to a second object, which exists on an outer side of the first object in the image-taking screen, is shorter than the first object distance by a second predetermined distance or more, the selector selects the focus detection area corresponding to the second object as the focus target area.

Image-taking apparatus and focusing method

An image-taking apparatus is disclosed, which is capable of reducing the influence of the one-side blur by the automatic focusing function. The image-taking apparatus comprises a focus detector, which detects the focus state of the plurality of focus detection areas, and a selector, which selects a focus target area from a plurality of focus detection area based on the detection result of the focus detector. In a case where a first object distance to a first object is longer than a first predetermined distances and a second object distance to a second object, which exists on an outer side of the first object in the image-taking screen, is shorter than the first object distance by a second predetermined distance or more, the selector selects the focus detection area corresponding to the second object as the focus target area.

An object of this invention is to eliminate cumbersomeness and improve the photographer's convenience by inputting settings to an image sensing apparatus by the user. To achieve this object, an image sensing apparatus includes a memory which stores information on a photographing frequency in association with object distance information and brightness information, an acquisition device which acquires an object brightness value on the basis of image information sensed by an image sensing device, and a control device which refers to the memory to detect an object distance having the highest photographing frequency among object distances corresponding to the acquired object brightness value, and controls image sensing operation on the basis of the detected object distance information.

Image sensing apparatus, image sensing method, program for realizing the image sensing method, and storage medium which stores the program

An object of this invention is to increase the precision and speed of autofocusing operation. To achieve this object, an image sensing apparatus includes a photographing optical system which forms an object image, the photographing optical system having a focusing optical system which adjusts the imaging position of the object image, an image sensing element which photoelectrically converts the object image formed by the photographing optical system to generate an electrical image signal, an in-focus position detection device which detects the in-focus position of the focusing optical system for forming the object image on the image sensing element, on the basis of the image signal generated by the image sensing element while the focusing optical system adjusts the imaging position of the object image, and a distance measurement device which has a plurality of light-receiving portions for receiving a beam from an object, and measures a distance to the object on the basis of output signals from the light-receiving portions.

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Kawasaki, Japan

Kota Terayama