Canon Kabushiki Kaisha

Keiko Yonezawa

Kazuhide Miyata

Hiroshi Imamura

Mitsuro Sugita

Yasufumi Takama

An image processing apparatus comprises a specific object detection unit configured to detect a specific object from a moving image, a setting unit configured to set, in the moving image, based on a position of the specific object, a region of interest which is a region for performing an encoding process that produces a relatively higher image quality than in another region other than the region of interest, a moving object detection unit configured to detect a moving object from the moving image, and an encoding unit configured to perform an encoding process using, in the region of interest, an encoding parameter that can produce a relatively higher image quality than an encoding parameter used in the other region, when the moving object is detected in the region of interest.

Image processing apparatus, image processing method, and non-transitory computer-readable recording medium

An image acquisition unit acquires an image frame of a moving image captured by an image capturing unit. A moving object detection unit performs moving object detection processing for detecting a moving object from the image frame acquired by the image acquisition unit. An encoding unit encodes the image frame acquired by the image acquisition unit, based on a result of the moving object detection processing performed by the moving object detection unit. The encoding unit encodes a changed region, which is a region changed from a moving-object region obtained on the basis of a result of the moving object detection processing in an image frame preceding an image frame to be encoded, to a non-moving-object region in the image frame to be encoded, by using encoding control or an encoding parameter different from encoding control or an encoding parameter for other non-moving-object region.

Image processing apparatus, image processing method, and storage medium

An image processing apparatus includes an identification unit configured to identify periodicity of a fundus image obtained by capturing an image of a fundus of an eye, and an information acquisition unit configured to acquire information indicating an imaging state of photoreceptor cells in the fundus image based on the periodicity.

Image processing apparatus, ophthalmologic imaging apparatus, image processing method, and storage medium

An image processing apparatus sets a region of interest for an image frame of a moving image captured by a capturing unit, based on an operation by a user, detects a moving object region in the image frame, determines whether at least part of the detected moving object region is contained in the region of interest or not, and, in a case where at least part of the detected moving object region is determined to be contained in the region of interest, performs encoding such that the entire region of interest becomes higher in image quality than an outside of the region of interest.

Image processing apparatus, image processing method, and non-transitory computer-readable storage medium

A registration unit configured to perform first registration of the first image (WF-SLO image) and the second image (AI-SLO image) included in the same set and second registration of the first images included in the different sets and to generate positional information of these registration; and a superimposition unit configured to superimpose the second image included in a first set and the second image included in a second set that is the set acquired after the first set on the first image included in the first set or on the first image included in the second set based on the positional information generated by the registerer to generate a superimposed image are provided.

Image processing device, image processing method, and program

An ophthalmic apparatus includes an image acquiring unit configured to acquire an eye fundus image of an eye to be examined, a candidate acquiring unit configured to acquire a plurality of candidate points for a photoreceptor cell in the eye fundus image based on brightness values of the eye fundus image, a first acquiring unit configured to acquire a first feature value of a first candidate point included in the plurality of candidate points based on a distance between the first candidate point and a second candidate point included in the plurality of candidate points, and a determining unit configured to determine whether the first candidate point is a point representing the photoreceptor cell or not based on the first feature value.

Ophthalmic apparatus, photoreceptor cell detection method and program

A distortion in an image, which occurs when the image is formed by scanning a retina with a resonance scanner, is reduced. An image forming apparatus for forming an image of an object to be inspected includes: a detecting unit for detecting signals relating to a resonance scanner which is set to scan the object to be inspected with measurement light at a first frequency; a determining unit for determining a second frequency which is estimated to be used for the scanning by the resonance scanner, based on a correlation between groups of the detected signals for each cycle of the first frequency; and an image forming unit for forming the image of the object to be inspected based on the determined second frequency.

Image forming apparatus, image forming method, program, and ophthalmic apparatus

An image processing apparatus includes an alignment unit configured to align a first fundus oculi image that is an aberration-corrected image of an eye being examined and a second fundus oculi image having a larger view angle and a lower resolution than the first fundus oculi image, by using a third fundus oculi image having a smaller view angle and a higher resolution than the second fundus oculi image; a distance acquisition unit configured to acquire a distance from a macula lutea of the eye being examined to a certain position in the first fundus oculi image aligned by the alignment unit; and an evaluation unit configured to evaluate the state of the eye being examined from the distance and information concerning photoreceptor cells included in the first fundus oculi image.

Image processing apparatus and image processing method

An image processing apparatus includes an identifying unit configured to identify a region relating to the movement of blood cells on a fundus image captured by an ophthalmologic imaging apparatus that includes an adaptive optics system, and an acquisition unit configured to acquire information relating to a tissue that is positioned on a back side of a position where the movement of blood cells is recognized, when it is seen from an anterior eye part side, in the identified region.

Image processing apparatus ophthalmologic imaging system and image processing method

This invention is directed towards a medical image processing apparatus capable of providing effective information on glaucoma by integrating the tomographic image of the retina obtained by an optical coherence tomograph (OCT: Optical Coherence Tomography) and visual function information obtained by a perimeter. The medical image processing apparatus associates visual field measurement results with a fundus camera image (S). The medical image processing apparatus registers, on the fundus camera image associated with the visual field measurement results, a layer thickness distribution which is obtained from an OCT tomographic image and indicates the thickness of the nerve fiber layer in the retina layer of an eye to be examined (S). After that, the medical image processing apparatus presents information indicating glaucoma of the eye to be examined, based on the layer thickness distribution registered on the fundus camera image, and the visual field measurement results (S).

Medical image processing apparatus for examining an eye to determine the stage of glaucoma

An ophthalmological apparatus includes a first acquiring unit configured to acquire a first eye fundus image of an eye to be examined on basis of return light from the eye to be examined having a corrected aberration of the eye to be examined, a second acquiring unit configured to acquire a second eye fundus image of the eye to be examined, an aligning unit configured to align the first eye fundus image and the second eye fundus image, and a region setting unit configured to set a candidate region of interest on basis of the alignment.

Image processing apparatus and method of controlling same

An image processing apparatus for analyzing a plurality of images acquired of an eye to be inspected includes a photoreceptor cell analysis unit configured to analyze an area of each photoreceptor cell in a first image, a fundus analysis unit configured to analyze a characteristic of a fundus from a second image, an image associating unit configured to associate the first image with the second image, a characteristic value calculation unit configured to calculate a value of the characteristic for the area of the each photoreceptor cell from the association, and a display unit configured to display an image based on the value of the characteristic calculated for the each photoreceptor cell.

An image processing apparatus for processing an image of photoreceptor cells of a fundus of an eye includes a conversion unit configured to convert the image of photoreceptor cells into an image indicating periodicity of the photoreceptor cells, and an acquisition unit configured to acquire intensity information in a plurality of directions of the image indicating the periodicity.

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Kawasaki, Japan

Keiko Yonezawa