Canon Kabushiki Kaisha

Doheny Eye Institute

Akihito Uji

Yoshihiko Iwase

Hiroyuki Sekiguchi

Srinivas R Sadda

Makoto Sato

Hiroshi Imamura

Nagahisa Yoshimura

Tomoyuki Makihira

Hirofumi Yoshida

Masami Kawagishi

Daisuke Kawase

Shigeta Arichika

The disclosure herein provides methods, systems, and devices for improving optical coherence tomography machine outputs through multiple enface optical coherence tomography angiography averaging techniques. The embodiments disclosed herein can be utilized in ophthalmology for employing optical coherence tomography (OCT) for in vivo visualization of blood vessels and the flow of blood in an eye of a patient, which is also known generally as optical coherence tomography angiography (OCTA). The embodiments disclosed herein can use linear registration, affine registration and/or elastic registration to align a plurality of optical coherence tomography angiography images or videos at corresponding superficial vascular layers having well-defined features or landmarks, and to apply the same linear registration, affine registration and/or elastic registration settings and/or data to corresponding deeper tissue layers, such as the choriocapillaris, which generally do not have well-defined features or landmarks, in order to align a plurality of corresponding deeper tissue layers for the purpose of averaging the images or video to produce a clearer and more accurate image or video of the tissue structure at deeper tissue layers.

Systems, methods, and devices for optical coherence tomography multiple enface angiography averaging

A diagnosis support apparatus detects a finding and a position, on a diagnosis image as a diagnosis target medical image, which corresponds to the finding from the image, and searches a database storing a plurality of medical images linked to findings and diagnosis names by using the detected finding. The diagnosis support apparatus simultaneously performs or switches between the first display operation of causing a display unit to display the diagnosis image, together with the detected finding and a position on the display which corresponds to the finding and the second display operation of causing the display unit to display the found medical image, together with a diagnosis name associated with the medical image.

Diagnosis support apparatus and diagnosis support method

An image processing apparatus includes a detecting unit configured to execute structural analysis on a tomographic image acquired by an acquiring unit and detect an abnormal portion of the eye; and a display control unit configured to cause a displaying unit to display a finding of the abnormal portion detected by the detecting unit, as a sentence or a word in a manner superimposed on the tomographic image.

Image processing apparatus, image processing method, and storage medium

The position of the fovea is estimated with high accuracy in a manner such that the thicknesses of a first region including at least a partial region of a region from the internal limiting membrane to the boundary between the external plexiform layer and the external granular layer and a second region including at least a partial region of a region from the boundary to the photoreceptor cell inner segment/outer segment junction are compared with each other, and the position of the fovea is estimated.

Image processing apparatus, estimation method, system, and medium

Focus adjustment is enabled with respect to an object to be inspected even when an optical member for changing a field angle is inserted in order to change the field angle of an acquiring area of a tomographic image, and a clear tomographic image with a focus on the object to be inspected is acquired. In an optical tomographic imaging apparatus, an optical system includes a focus lens configured to focus a measuring light on the object to be inspected. The optical tomographic imaging apparatus includes a unit configured to compensate, when an optical member for changing a field angle is inserted between a scanning unit and the object to be inspected in order to change the field angle of an acquiring area of a tomographic image, a change in a focus position of the focus lens in association with the inserting.

Optical tomographic imaging apparatus, control method therefor, and program therefor

A high-resolution image suited to the purpose of a doctor or the like is acquired. The present invention relates to an image processing apparatus including an acquisition unit configured to acquire a tomogram of a subject eye; a first extraction unit configured to extract part of the tomogram acquired by the acquisition unit; an estimating unit configured to estimate a high-frequency component based on a result of extraction by the extraction unit; and a combining unit configured to combine the high-frequency component with the tomogram acquired by the acquisition unit.

Apparatus, method, and program for processing image

An image processing apparatus includes a determination unit configured to determine, as a partial region of a multi-channel fundus image including an optic disk area and a macular area of a subject's eye, one of a region of the multi-channel fundus image which includes the macular area and a region of the multi-channel fundus image which includes the optic disk area, and a generation unit configured to generate an image in which a difference in color of the partial region is enhanced, by applying to the partial region image processing based on a decorrelation stretching method.

Image processing apparatus

An image processing apparatus obtains a moving image of an eye area, identifies a region of blood cells in the obtained moving image, and determines the number of determined regions of blood cells.

Image processing apparatus and image processing method

An image processing apparatus obtains an image of an eye area, determines a measurement target among multiple vascular branches based on information regarding multiple vascular branches that include multiple vascular bifurcations in the obtained image, and measures the size of a blood cell aggregate in the determined measurement target.

An image processing apparatus acquires a tomographic image of an eye to be examined. The image processing apparatus quantifies a distortion in a region determined from the tomographic image. The region includes a photoreceptor layer or a retinal pigment epithelium.

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Kyoto, Japan

Akihito Uji