1. Canon Medical Systems

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    1. Mentioned In 92 Articles

    2. Image processing apparatus, control method, and optical coherence tomography system

      Image processing apparatus, control method, and optical coherence tomography system

      In an image processing apparatus, Whether image quality of a tomographic image corresponding to a predetermined position in an imaging target captured by an optical coherence tomography apparatus is within a predetermined range is determined, an instruction whether to permit the image capturing in the predetermined position is issued to the optical coherence tomography apparatus according to a determination that the image quality is out of the predetermined range, and a new tomographic image is generated by combining the tomographic image obtained according to the instruction and the tomographic image whose image quality is determined.

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    3. Optical coherence tomography apparatus, image processing apparatus, image processing method, and storage medium of program

      Optical coherence tomography apparatus, image processing apparatus, image processing method, and storage medium of program

      An optical coherence tomography apparatus includes a generation unit configured, based on interfering light produced by interfering a return beam and a reference beam of light emitted toward the object to be measured, to generate tomographic images of an object to be measured, an image processing unit configured to perform image processing for increasing image quality to at least one of the tomographic images generated by the generation unit, and a display control unit configured to display one of the tomographic images generated by the generation unit and then display the image on which the image processing is performed by ...

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    4. Displaying extracted structures from an OCT image superimposed on an eyeground image

      Displaying extracted structures from an OCT image superimposed on an eyeground image

      An image processing apparatus includes an extraction unit configured to extract a structure of a tested eye from an OCT image obtained by optical coherence tomography, an extraction unit configured to extract a structure of the tested eye from an eyeground image obtained by a scanning laser ophthalmoscope or a fundus camera, a calculation unit configured to calculate a reliability degree of the extraction for each of the extracted structures, and a display control unit configured to display the extracted structures superimposed on a image of eyeground according to the calculated reliability.

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    5. Surface Emitting Laser And Optical Coherence Tomography Apparatus

      Surface Emitting Laser And Optical Coherence Tomography Apparatus

      A surface emitting laser is provided which requires a smaller number of components, and which can reduce the cost. A surface emitting laser includes a cavity constituted by a first reflecting mirror (101) and a second reflecting mirror (102), and having a resonant wavelength that is changed by changing a cavity length with movement (106) of the first reflecting mirror (101) in a direction facing the second reflecting mirror.

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    6. Image processing apparatus, image processing method, image processing system, SLO apparatus, and program

      Image processing apparatus, image processing method, image processing system, SLO apparatus, and program

      n image processing apparatus includes an SLO image acquisition unit configured to acquire a plurality of SLO images obtainable by an SLO apparatus that scans a target to be captured with signal light at various focus positions in an optical axis direction of the signal light. The image processing apparatus includes a structure acquisition unit configured to acquire a specific structure of the target to be captured. The image processing apparatus includes an object image acquisition unit configured to acquire an image of the specific structure from each of the plurality of SLO images captured at various focus positions according ...

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    7. Measuring apparatus and exposure device

      Measuring apparatus and exposure device

      An apparatus includes a system configured to split a light emitted from a light source into reference light and subject light, cause the subject light to enter into an object, and combine the subject light reflected by the object with the reference light, a detection unit configured to detect coherent light between the combined subject and reference lights, an element, provided within a light path of the reference light or the subject light, configured to change a path length difference between the reference light and the subject light and a relative position between the reference light and the subject light ...

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    8. Tomographic imaging apparatus and tomographic imaging method

      Tomographic imaging apparatus and tomographic imaging method

      A tomographic imaging apparatus includes an irradiation unit configured to irradiate with a plurality of measurement light beams, a sensor configured to convert into an electric signal a plurality of combined light beams via an optical imaging system by making return light beams from an inspection target, which are generated due to the plurality of measurement light beams, interfere with reference light beams, an output unit configured to output light beams of a single wavelength based on a wavelength width of the plurality of measurement light beams, and a generation unit configured to generate a tomographic image from an electric ...

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    9. Imaging apparatus and imaging method

      Imaging apparatus and imaging method

      An imaging apparatus includes changing unit for changing a positional relation of irradiation positions of a plurality of measuring beams to be radiated onto an object. The imaging apparatus includes scanning unit for scanning the plurality of measuring beams in the positional relation which has been changed by the changing unit, and acquiring unit for acquiring an optical coherence tomographic image of the object on the basis of the plurality of measuring beams.

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    10. Image acquisition apparatus and control method therefor

      Image acquisition apparatus and control method therefor

      Provided is an image acquisition apparatus for acquiring a 3D retinal image with high resolution, which is capable of reducing a time period required for data transmission. In the image acquisition apparatus: a blink of a subject is detected; acquisition of image taking data is suspended thereafter until a line of sight becomes stable; and the data transmission to a computer is started at a timing at which a blink has been detected, thereby avoiding acquiring unnecessary data, allowing a capacity of a data buffer to be smaller, and making the data transmission efficient.

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    11. Optical coherence tomographic imaging apparatus, optical coherence tomographic imaging method, program for executing the optical coherence tomographic imaging method, and storage medium having the program stored thereon

      Optical coherence tomographic imaging apparatus, optical coherence tomographic imaging method, program for executing the optical coherence tomographic imaging method, and storage medium having the program stored thereon

      In order to perform accurate evaluation for enhanced depth imaging (EDI) in which a tomographic image of a retina has a low luminance value in large part, provided is an optical coherence tomographic imaging apparatus for acquiring an image of an object to be inspected by irradiating the object to be inspected with measuring light and causing return light from the object to be inspected to interfere with reference light, the optical coherence tomographic imaging apparatus including: a unit for setting an imaging parameter of the image; a unit for selecting an image quality evaluation index in accordance with the ...

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    12. Optical coherence tomography apparatus and method

      Optical coherence tomography apparatus and method

      Measuring light with a wide wavelength band is used to provide a tomographic image excellent in vertical resolution. An optical coherence tomography apparatus acquiring a tomographic image of an object to be inspected based on an interference light obtained by causing a return light from a measuring light emitted onto the object to be inspected to interfere with a reference light corresponding to the measuring light, includes: a first dispersion compensation unit having a first dispersion compensation characteristic in a wavelength band of the measuring light; a second dispersion compensation unit provided onto the first dispersion compensation unit and having ...

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    13. Imaging apparatus and imaging method, program, and recording medium

      Imaging apparatus and imaging method, program, and recording medium

      An imaging apparatus that captures an object that changes temporally includes: first acquisition means for acquiring an overview image of the object; determination means for determining a reference part in the overview image in which there is less temporal change than in other parts; setting means for setting, in a first overview image, a capturing position of the object where detailed capturing is to be performed; registering means for, in the case where a second overview image has been acquired for the same object as the object in the first overview image, registering the second overview image with the first ...

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    14. Image acquisition apparatus, image acquisition system, and method of controlling the same

      Image acquisition apparatus, image acquisition system, and method of controlling the same

      An OCT apparatus that photographs with a plurality of measuring beams concurrently, has a mechanism for adjusting the optical path length of a reference beam for each measuring beam. Accordingly, when tomographic images photographed in this manner are displayed side by side, because the depth of photographing varies from one tomographic image to another, it is difficult for an operator to comprehend the positional relation between the photographed images. In displaying tomographic images acquired with a plurality of measuring beams, the display position of each tomographic image is adjusted based on the changed optical path length of a reference beam ...

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    15. Image processing apparatus and method

      Image processing apparatus and method

      An image processing apparatus for supporting imaging diagnosis of an eye is provided. A layer boundary of a retina region is detected from a tomographic image. A position where the detected layer boundary intersects with an upper or lower limit position of the image in the depth direction of the tomographic image is determined as a dividing position. The tomographic image is divided at the determined dividing position by a scan line in the depth direction of the tomographic image. Subsequently, whether the detection is a false detection is judged for each divided region. An average density value of the ...

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  2. About Canon Medical Systems

    Canon Medical Systems

    Cannon Medical Systems Division, U.S.A.  Ophthalmic Systems.  Canon supports synergy between the Company’s retinal camera systems and Optical Coherence Tomography (OCT) products from OPTOPOL Technology S.A.