Abstract: The optical coherence tomography apparatus is an optical coherence tomography apparatus that obtains a tomographic image of an eye to be examined by using combined light obtained by combining (a) return light from the eye to be examined irradiated with measurement light and (b) reference light, the optical coherence tomography apparatus including an optical path length difference changing unit arranged to change an optical path length difference between the measurement light and the reference light, a driving unit arranged to drive the optical path length difference changing unit, a determining unit configured to determine, using a learned model, a driving amount of the driving unit from the obtained tomographic image, and a controlling unit configured to control the driving unit using the determined driving amount.

Abstract: An image processing apparatus is provided that includes: an obtaining unit configured to obtain a plurality of images relating to different radiation energies; and a generating unit configured to generate at least one of energy-subtraction images based on the plurality of images using a learned model, wherein the learned model is obtained using a first image obtained using a radiation and a second image obtained by improving image-quality of the first image or by adding a noise which has been artificially calculated to the first image.

Abstract: The optical coherence tomography apparatus is an optical coherence tomography apparatus that obtains a tomographic image of an eye to be examined by using combined light obtained by combining (a) return light from the eye to be examined irradiated with measurement light and (b) reference light, the optical coherence tomography apparatus including an optical path length difference changing unit arranged to change an optical path length difference between the measurement light and the reference light, a driving unit arranged to drive the optical path length difference changing unit, a determining unit configured to determine, using a learned model, a driving amount of the driving unit from the obtained tomographic image, and a controlling unit configured to control the driving unit using the determined driving amount.

Abstract: An apparatus includes an obtaining unit configured to obtain, using an optical coherence tomography, an analysis map for a disk and an analysis map for a macular area, which are analysis results of three-dimensional data obtained by capturing an image of a region of a fundus of a subject's eye that includes the disk and the macular area, and a control unit configured to cause a display unit to display side by side a two-dimensional image of the region including the disk and the macular area, the analysis map for the optic disk, and the analysis map for the macular area.

Abstract: An image processing apparatus includes: an obtaining unit configured to obtain a first image of an eye to be examined; an image quality improving unit configured to generate a second image with at least one of lower noise and higher contrast than the obtained first image using the obtained first image as an input data of a learned model, wherein the learned model has been obtained by using training data including a second image with at least one of lower noise and higher contrast than a first image of an eye to be examined; and a display controlling unit configured to cause the obtained first image and the generated second image to be switched, juxtaposed or superimposed and displayed on a display unit.

Abstract: An image processing apparatus capable of easily generating a two-dimensional panoramic image at a high speed from a plurality of three-dimensional images includes an acquisition unit configured to acquire a generation condition of a first en-face image generated from a first three-dimensional image of an target eye, a first generation unit configured to generate a second en-face image from a second three-dimensional image of the target eye by applying the generation condition acquired by the acquisition unit to the second three-dimensional image, and a second generation unit configured to generate a combined image by combining the first en-face image with the second en-face image.

Abstract: A first area and a second area are set for a first two-dimensional tomographic image where the first area and the second area overlap each other in a partial area in a horizontal direction of the first two-dimensional tomographic image. A positional deviation amount between the first two-dimensional tomographic image and a second two-dimensional tomographic image is obtained in each of the first area and the second area. A moving amount of the second two-dimensional tomographic image is determined with respect to the first two-dimensional tomographic image in an area where the first area and the second area overlap based on the positional deviation amount in the first area and the positional deviation amount the second area. Alignments are performed on the first two-dimensional tomographic image and the second two-dimensional tomographic image in an area where the first area and the second area overlap based on the moving amount.

Abstract: An image processing apparatus includes first alignment means configured to perform an alignment in a horizontal direction on a plurality of two-dimensional tomographic images based on measurement light controlled to scan an identical position of an eye according to a first method, and second alignment means configured to perform an alignment in a depth direction on the plurality of two-dimensional tomographic images according to a second method that is different from the first method.

Abstract: An image processing apparatus includes an obtaining unit configured to obtain a first two-dimensional tomographic image and a second two-dimensional tomographic image, the first two-dimensional tomographic image and the second two-dimensional tomographic image being obtained based on measurement light controlled to scan an identical position of an eye, a selection unit configured to select a positional deviation amount between a layer boundary of the first two-dimensional tomographic image and a layer boundary of the second two-dimensional tomographic image in partial regions of a plurality of regions dividing the first two-dimensional tomographic image in a horizontal direction, and an alignment means configured to perform an alignment on the first two-dimensional tomographic image and the second two-dimensional tomographic image based on a positional deviation amount selected by the selection unit.

Abstract: An image processing apparatus capable of easily generating a two-dimensional panoramic image at a high speed from a plurality of three-dimensional images includes an acquisition unit configured to acquire a generation condition of a first en-face image generated from a first three-dimensional image of an target eye, a first generation unit configured to generate a second en-face image from a second three-dimensional image of the target eye by applying the generation condition acquired by the acquisition unit to the second three-dimensional image, and a second generation unit configured to generate a combined image by combining the first en-face image with the second en-face image.

Abstract: A first area and a second area are set for a first two-dimensional tomographic image where the first area and the second area overlap each other in a partial area in a horizontal direction of the first two-dimensional tomographic image. A positional deviation amount between the first two-dimensional tomographic image and a second two-dimensional tomographic image is obtained in each of the first area and the second area. A moving amount of the second two-dimensional tomographic image is determined with respect to the first two-dimensional tomographic image in an area where the first area and the second area overlap based on the positional deviation amount in the first area and the positional deviation amount the second area. Alignments are performed on the first two-dimensional tomographic image and the second two-dimensional tomographic image in an area where the first area and the second area overlap based on the moving amount.

Abstract: An image processing apparatus includes first alignment means configured to perform an alignment in a horizontal direction on a plurality of two-dimensional tomographic images based on measurement light controlled to scan an identical position of an eye according to a first method, and second alignment means configured to perform an alignment in a depth direction on the plurality of two-dimensional tomographic images according to a second method that is different from the first method.

Abstract: An information processing apparatus includes a scan control unit configured to control a scan with measurement light for generating a three-dimensional motion contrast image of the fundus, and a display control unit configured to display information indicating a progress of the scan on a display unit.

Abstract: A brightness control unit includes: a “feedback brightness control unit” that calculates a first gain from a corrected image data and multiplies the first gain by image data prior to correct; and a “feedforward brightness control unit” which, when a scene change is detected, calculates a second gain on the basis of a difference between the first gain which is calculated from the corrected image data and the first gain which has been multiplied by the pre-correction image data of the corrected image data in order to correct the difference, and multiplies the second gain by the corrected image data.

Abstract: An ophthalmic apparatus that determines whether alignment with a subject eye is complete using an observation image of an anterior ocular segment of the subject eye obtained through a split prism determines whether or not the alignment is a success or failure based on a position of a pupil image on respective lines of a line pair that are parallel to a boundary of the split prism and are equidistant from the boundary in the observation image. The ophthalmic apparatus determines the success or failure of alignment for a plurality of line pairs whose distances from the boundary are different, and determines whether or not the alignment is complete based on the obtained determination results.

Abstract: An ophthalmic imaging apparatus including an observation light source configured to emit observation light for observation of an eye to be examined and an imaging light source configured to emit imaging light for imaging the eye, the apparatus comprises a photometry unit configured to acquire a photometric value of an observation image of the eye illuminated by the observation light source; an alignment processing unit configured to perform alignment processing to match the eye with a target position; an imaging light amount adjusting unit configured to adjust a light amount of the imaging light source by using the photometric value before completion of the alignment processing; and an imaging processing unit configured to image the eye by using a light amount adjusted by the imaging light amount adjusting unit after completion of the alignment processing.

Abstract: An image display apparatus includes: a correction circuit that outputs corrected data based on luminance data designating luminance of display devices, and a modulation circuit that outputs a pulse width modulation signal for driving the display device to the column wiring based on the corrected data. The correction circuit includes: a luminance calculation circuit that calculates luminance including an effect of a voltage drop in the row wiring and an effect of a light emission time of the display device for each predetermined time slot; an accumulation circuit that temporally accumulates the luminance for each time slot; and a corrected data determination circuit that outputs, as the corrected data, a value determined in accordance with the time slot at a time point when an accumulated luminance value obtained by the temporal accumulation reaches a target luminance value.

Abstract: An image display apparatus includes an image processing circuit configured to generate an image signal based on input image data such that the image signal includes a main-image frame and a sub-image frame with luminance lower than that of the main-image frame. The image processing circuit includes a conversion circuit and a memory control circuit. The conversion circuit converts frame synchronization signals of respective frames such that the main-image frame has a longer horizontal scanning period than the sub-image frame. The memory control circuit switches, in a period in which the unconverted synchronization signal and the converted synchronization signal are both in a vertical blanking period, operation modes of two frame memories between writing and reading. The image display apparatus is capable of suppressing a visible disturbance in image quality and a reduction in the total image luminance of a moving image without increasing a frame memory transfer rate.

Abstract: A brightness control unit includes: a “feedback brightness control unit” that calculates a first gain from a corrected image data and multiplies the first gain by image data prior to correct; and a “feedforward brightness control unit” which, when a scene change is detected, calculates a second gain on the basis of a difference between the first gain which is calculated from the corrected image data and the first gain which has been multiplied by the pre-correction image data of the corrected image data in order to correct the difference, and multiplies the second gain by the corrected image data.

Abstract: There is provided an image display apparatus including: a first correction unit for outputting data to determine a lighting time of a first pixel on the basis of data to indicate luminance of the first pixel, wherein the first correction unit carries out first correction to compensate a loss of the luminance of the first pixel; and a second correction unit for outputting data to determine a lighting time of a second pixel on the basis of data to indicate luminance of the second pixel, wherein the second correction unit carries out second correction to compensate a loss of the luminance of the second pixel by predicting a lighting state of the first pixel that is corrected by the first correction.