Fujifilm Corporation

Canon Kabushiki Kaisha

Takaaki Saito

Hiroshi Yamaguchi

Takayuki Iida

Toshihiko Kaku

Norimasa Shigeta

Akira Mizuyoshi

Yoji Shimoyama

An endoscope obtains a plurality of spectral images from the image pickup of an object to be observed illuminated on the basis of illumination light. A special processing section calculates oxygen saturation of the object to be observed on the basis of the plurality of spectral images, first correction parameters that are used to correct differences in the spectral characteristics of the respective semiconductor light sources, and white balance correction data.

Endoscope system for calculating oxygen saturation based on correction parameters and method of operating the same

A storage apparatus, comprising a memory unit including an anti-fuse element, an information write unit configured to write information in the anti-fuse element by periodically applying a signal to the memory unit, and a control unit configured to execute drive control of the information write unit, wherein based on a determination result as to whether the signal periodically output by the information write unit satisfies a criterion, the control unit changes a period of a signal to be output by the information write unit.

Storage apparatus, liquid discharge head, and liquid discharge apparatus

An endoscope system includes a processor, and the processor acquires a plurality of spectral images for calculation of oxygen saturation that are used to calculate oxygen saturation of an object to be observed and spectral images for correction that are used to calculate correction values to be used to correct the oxygen saturation, creates a linearity correction table that is used to linearize a relationship between an amount of light incident on an image sensor and pixel values of the spectral images for correction, and calculates the correction values using the spectral images for correction that have been subjected to linearity correction using the linearity correction table.

Endoscope system and method of operating the same

A semiconductor storage apparatus comprising a memory unit including one or more memory devices, the semiconductor storage apparatus further comprising a first resistance connected in series to a power line that supplies a writing voltage to the memory unit, a second resistance connected in parallel to the first resistance via a drive element, and a control unit configured to control the drive element to be driven into conduction to allow current to flow through the first resistance and the second resistance when a memory device of the one or more memory devices of the memory unit is selected.

Semiconductor storage apparatus and printing apparatus

In an endoscope system, an oxygen-saturation-level calculating unit calculates an oxygen saturation level of the observation target on the basis of a plurality of spectral images acquired by an image acquiring unit. An image creating unit creates an oxygen-saturation-level image that is an image representing the oxygen saturation level. A numerical-value display-position determining unit determines a numerical-value display position for displaying a numerical value of the oxygen saturation level on the oxygen-saturation-level image, on the basis of the spectral images or the oxygen saturation level, or the spectral images and the oxygen saturation level. A display control unit displays the numerical value of the oxygen saturation level on the oxygen-saturation-level image on the basis of the numerical-value display position.

Endoscope system

An actual measurement value calculation unit calculates a first actual measurement value of oxygen saturation of a tissue to be observed. A reference value calculation unit calculates a first reference value of the oxygen saturation of the tissue to be observed. A relative value calculation unit calculates a relative value of the first actual measurement value with reference to the first reference value. An image generation unit generates an image of the relative value of the first actual measurement value on the basis of an evaluation color table to generate an evaluation oxygen-saturation image. A display unit displays the evaluation oxygen-saturation image.

Endoscope system, method for activating endoscope system, and image processing apparatus

An oxygen saturation calculating unit calculates, based on an observation image, an oxygen saturation included in the observation target. A reliability calculating unit calculates, based on the observation image, reliability regarding the biological information. A reference value processing unit sets, for a measurement value indicative of the biological information of a measurement target in the observation target, a reference value serving as a reference for the biological information by using the reliability. A difference image generating unit calculates a difference value between the measurement value and the reference value and generates, based on the difference value, a difference image.

Medical image processing system and endoscope system

An endoscope system includes: an image acquiring unit that acquires a first frame image obtained by photographing a photographic subject and a second frame image obtained by photographing the photographic subject at a timing different from that of the first frame image; an oxygen saturation calculating unit that calculates an oxygen saturation by using the first frame image and the second frame image; a reliability calculating unit that calculates reliability of the oxygen saturation, calculated by the oxygen calculating unit, by using a signal ratio that is a ratio between a pixel value in a first specific wavelength range corresponding to a specific wavelength range of the first frame image and a pixel value in a second specific wavelength range corresponding to the specific wavelength range of the second frame image; and an information amount adjusting unit that adjusts an information amount of the oxygen saturation by using the reliability.

A measurement value calculation section calculates the actual measurement value of the hemoglobin concentration of an object to be observed and the actual measurement value of an oxygen saturation thereof on the basis of a plurality of first spectral images. A relative value calculation section calculates the relative value of the hemoglobin concentration and the relative value of the oxygen saturation on the basis of the actual measurement value and the reference value of the hemoglobin concentration and the actual measurement value and the reference value of the oxygen saturation. An image generation section generates a relative value image obtained from the imaging of the relative value of the hemoglobin concentration and/or the relative value of the oxygen saturation, and displays the relative value image on a display unit.

Endoscope system, processor device, and method of operating endoscope system

An endoscope system has an oxygen saturation calculation unit that calculates the oxygen saturation of an observation object, and includes an image acquisition unit that acquires a preliminarily captured image that is an image of the observation object, a correction unit that corrects an LUT that the oxygen saturation calculation unit uses for the calculation of the oxygen saturation, using the preliminarily captured image, a determination unit that determines a success or failure of the correction, and a warning unit that performs warning in a case where a determination result obtained by the determination unit is a failure.

Provided are a processor device, an endoscope system, and an image processing method capable of discovering not only a lesion in which scattering particles according to a specific scattering model are present but also various lesions. A processor deviceincludes an image acquisition unitthat acquires images of three wavelength ranges of a blue wavelength range, a green wavelength range, and a red wavelength range; a scattering characteristic amount calculation unitthat calculates a scattering characteristic amount representing a scattering characteristic of an observation object, using the images of the three wavelength ranges; and an image generation unitthat generates a scattering characteristic amount image representing a distribution of the scattering characteristic amount.

Processor device, endoscope system, and image processing method

There are provided a medical image processing device, an endoscope system, a diagnosis support device, and a medical service support device that can provide appropriate diagnosis support information from a region of interest by appropriately extracting the region of interest. An image acquisition unit acquires a medical image obtained from the image pickup of an object to be observed. A region-of-interest extraction section extracts a first region of interest as a region of interest from the medical image. A region-of-interest change section performs correction processing for correcting the first region of interest to a second region of interest. A user interface receives an instruction given to the region-of-interest change section. The correction processing includes the enlargement, the reduction, or the position change of the first region of interest.

Medical image processing device, endoscope system, diagnosis support device, and medical service support device

There are provided an endoscopic diagnosis apparatus, image processing method, and recording medium that enable easy measurement of the size of a lesion portion or the like based on an endoscopic image captured through a normal operation without a special operation. A region detecting unit detects, from an endoscopic image, a region of an artificial object or the like that is in contact with a subject. An imaging size calculating unit calculates, in number of pixels, an imaging size in the endoscopic image of the region of the artificial object or the like that is in contact with the subject. A pixel size calculating unit calculates an actual size corresponding to one pixel. A scale generating unit generates scales indicating an actual size of the subject in the endoscopic image. A control unit performs control to combine the endoscopic image and the scales and to display.

Endoscopic diagnosis apparatus, image processing method, program, and recording medium

In a blood information measuring apparatus, a plurality of types of light of a superficial layer wavelength set, a middle layer wavelength set, and a deep layer wavelength set are successively applied to a detected hypoxic region. A CCD captures an image under the light of each wavelength set, and an oxygen saturation image is produced independently from one wavelength set to another. A wavelength set determination section creates a histogram of each oxygen saturation image. The wavelength set determination section chooses one of the wavelength sets corresponding to the histogram having a maximum variance as an actual imaging wavelength set. Actual imaging operation is performed using the actual imaging wavelength set, and an oxygen saturation level of each pixel is calculated. The oxygen saturation level is reflected in the image, and the image is displayed on a monitor.

Blood information measuring apparatus and method

An image signal acquisition unit acquires a first image signal corresponding to a first wavelength band, a second image signal corresponding to a second wavelength band, a third image signal corresponding to a third wavelength band, and a fourth image signal corresponding to a fourth wavelength band. A correlation storage unit stores a correlation between oxygen saturation degree and a first calculated value obtained from a specific calculation based on the second image signal, the third image signal, and the fourth image signal. A correlation correction unit calculates a correlation correction amount on the basis of the first image signal, the second image signal, the third image signal, and the fourth image signal, and corrects the correlation on the basis of the correction amount.

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Kanagawa, Japan

Takaaki Saito