Olympus Corporation

Olympus Imaging Corporation

Kazumasa Kunugi

Tetsuo Kikuchi

Yukie Yamazaki

Yoshinobu Omata

Kazumi Ito

Hiroyuki Fukuda

Shunya Akimoto

Akira Matsushita

Tomohiro Hoshino

Tomoko Gocho

Masato Naruse

Kazuya Kobayashi

Tomoya Sakai

A surgical support system includes a processor that establishes communication connection with a terminal. The processor performs processing of displaying a display screen on a terminal to present the display screen to a member other than a surgeon among operation team members via the terminal. The display screen includes a live image region in which a live image of surgery conducted by the operation team members is displayed, and a supplementary region in which information regarding a supplementary operation selected by selection and input by a member via a terminal is displayed, the selection being made from a plurality of supplementary operations for management of the surge.

Surgical support system, surgical support method, and information storage medium

A focusing apparatus includes processing circuitry. The processing circuitry is configured to select an AF area indicating a defocus amount closest to a calculated moving object prediction equation among the latest defocus amounts detected for the plurality of AF areas, in a case where the moving object prediction equation is determined as being established, and the driving direction is determined as being the close-range direction. The moving object prediction equation is determined as being established when a divergence amount between the defocus amount equal to or larger than a predetermined number included in the history and the calculated moving object prediction equation is equal to or lower than a predetermined value.

Focusing apparatus, control method of focusing apparatus, and recording medium storing focus adjustment program

A focus adjustment device, comprising a processor having a focus region setting section, a focus detection section, a determination section and a control section, wherein the focus detection region setting section sets a first focus detection region, and a second focus detection region, that is contained in the first focus detection region and that is narrower than the first focus detection region, in an imaging region, the control section, when it is determined that that there is not a periodicity-containing subject for the first focus detection region, and it is determined that there is a periodicity-containing subject for the second focus detection region, performs a focus adjustment operation by selecting a phase difference that is closest to a phase difference that has been detected for the first focus detection region, among a plurality of phase differences that have been detected for the second focus detection region.

Focus adjustment device and focus adjustment method

A focusing device includes at least one circuit which controls a first focusing operation using a contrast detection scheme, a second focusing operation using a phase detection scheme, and a setting operation to set a limited range. The circuit is configured to, in the first focusing operation, obtain a contrast evaluation value for positions of a focus lens within the limited range and a predetermined range beyond the limited range, and control a focusing operation based on the obtained contrast evaluation value, and in the second focusing operation, determine an out-of-focus state if a focal position of the focus lens based on a calculated defocus amount is outside the limited range or outside a first limited range having a boundary outside the limited range.

Focusing device, camera system, and focusing method

In a focus adjustment device that images a subject that has been subjected to pupil division to generate image data, and carries out a focus adjustment operation based on the image data, a focus adjustment operation is carried out based on a first phase difference amount in the event that it has been determined that the first phase difference amount is larger than a first threshold value, and then by executing focus detection after the focus adjustment operation, in the event that it has been determined that reliability of both the first phase difference amount and the second phase difference amount is high, and that a difference between the two is smaller than a second threshold value, and that it has been determined that the first phase difference amount is smaller than the first threshold value, a focus adjustment operation is carried out based on a second phase difference amount.

A focal point detection device according to the present invention comprising: an image sensor having an imaging pixel and a focal point detection pixel; a camera-shake preventing section which moves the image sensor in a direction perpendicular to the optical axis of the photographic lens to correct camera shake and also outputs information on the movement of the image sensor; a calculation section to calculate a focal point adjustment signal, based on the output of the focal point detection pixel; a memory to store a correction value for correcting the focal point adjustment signal, depending on the image height position of the focal point detection pixel; and a correction section to correct the focal point adjustment signal, depending on the output of the memory, the information output by the camera-shake preventing section, and the position of the focal point detection pixel.

Focal point adjustment device, camera system, and focal point adjustment method for imaging device

A focal point detection device comprising: an image sensor having a focal point detection pixel, a pixel data generation section to generate pixel data of a basis part and a reference part corresponding to a predetermined AF area using an output of the focal point detection pixel, a plurality of filter sections having different frequency characteristics to perform filter processing on the pixel data, a detection section to detect contrast of subject image data configured with a plurality of pieces of pixel data of the basis part and the reference part, and a calculation section to select a filter section from among the plurality of filter sections depending on the contrast output by the detection section, to perform correlation calculation using pixel data on which the filter processing is performed by the selected filter section to calculate a defocus amount.

Focal point detection device and focal point detection method

A camera system includes an interchangeable lens and a camera main body. The interchangeable lens includes a lens side storage unit that stores pupil related data according to an image height. The camera main body includes an image sensor including focus detection pixels, a main body side storage unit that stores correction data, and a correction unit corrects non-uniformity in illumination distribution of outputs of the focus detection pixels. The pupil related data is data regarding an F-number and an exit pupil position. The data regarding the F-number indicates a range of luminous flux to be applied to the focus detection pixels at a predetermined image height. The data regarding the exit pupil position relates to a position of intersection of a center of luminous flux applied to the focus detection pixels at a predetermined image height and an optical axis of the imaging optical system.

Camera system and method for correcting focus detection pixel

An imaging device which includes an imaging element having a phase difference detection pixel, and which performs autofocus using AF areas each including a plurality of sub-areas, the imaging device comprising: a calculation section configured to perform correlation calculation based on a focus detection signal corresponding to each of the plurality of sub-areas and output a degree of reliability; an AF area selection section configured to select an AF area including a large number of sub-areas in each of which the degree of reliability calculated corresponding to the plurality of sub-areas is higher; a moving body prediction calculation section configured to perform moving body prediction calculation using distance measurement data that is calculated by the correlation calculation based on a focus detection signal of the selected AF area; and a focus control section configured to perform focus adjustment based on a result of the moving body prediction calculation.

Imaging device and control method for imaging device

A focus adjustment unit of the present invention comprises a phase difference detection section for detecting extreme values, based on the image data, a periodicity-containing subject determination section for determining a periodicity-containing subject in the case where the phase difference detection section detects many extreme values having a high degree of correlation, and a control section for, when a periodicity-containing subject has been determined, determining whether or not a difference between a position of the focus lens shown by an extreme value corresponding to a position that is closest to a current focus lens position, and the current focus lens position, is outside a specified range, and if it is determined that the difference is outside the specified range, carrying out a focus adjustment operation based on the extreme value corresponding to the position that is closest to the current position of the focus lens.

Focus adjustment unit and focus adjustment method

An imaging device of the present invention comprises a focus detection section using phase difference detection based on output of the focus detection pixels, a pixel adding section, for creating respective first addition outputs by adding outputs of a first number of focus detection pixels, and creating respective second addition outputs by dividing the first number of arrays into a plurality, and adding outputs of focus detection pixels of the divided array, and a determination section for determining whether or not to correct an angle error, wherein the focus detection section executes a focus detection operation on the basis of the first addition outputs, the determination section determines whether or not to correct angle error on the basis of the plurality of second addition outputs, and in the event that the determination section has determined to correct angle error, the focus detection section corrects angle error based on a result of a focus detection operation.

Imaging device and focus detection method

A lens drive unit drives a focus lens. An imaging element obtains an image signal. An evaluation value calculation unit calculates an AF evaluation value from the image signal read out based on an interlace system. A determination unit determines whether the continuous AF evaluation values have a distribution of continuous increases and decreases. If the AF evaluation values are determined to have the distribution of continuous increases and decreases, an in-focus position calculation unit calculates an in-focus position by obtaining an interpolation curve from an intermediate value of the AF evaluation values adjacent to each other, otherwise, calculates the in-focus position by obtaining an interpolation curve of the AF evaluation value. A control unit drives the focus lens to the in-focus position.

Imaging apparatus and imaging method

N-band image data are output from an N-band image capture device, being capable of N&#x3e;4 multiband image capturing, to an image data processing device. An image data evaluation information provision unit provides a determination unit with evaluation information on the basis of the input N-band image data. On the basis of the evaluation information, the determination unit determines whether to set the N-band image data or M-band image data having a smaller band number than the N-band image data as image data to be output. On the basis of a determination result of the determination unit, an output image data selection unit selects either the N-band image data or the M-band image data as the image data to be output to an image data recording unit.

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Hachioji, Japan

Kazumasa Kunugi