Abstract: An image-processing method includes a measurement step, an index calculation step, a comparison step, and a selection step. A processor measures a distance at each of two or more points in one or more images of a subject in the measurement step. The processor calculates a first index or a second index on the basis of the distance in the index calculation step. The processor compares the first index or the second index with a threshold value in the comparison step. The processor selects at least one image included in the one or more images in the selection step when the first index is greater than the threshold value or the second index is less than the threshold value.

Abstract: An endoscope apparatus includes an identification unit provided in each of a plurality of optical adaptors, an MMA connected in parallel to the identification unit, an MMA drive circuit that is provided in a main body portion and applies a drive signal for driving the MMA through a pair of conductive wires, a sine-wave generation circuit that is provided in the main body portion and applies an alternating signal to the identification unit through a pair of conductive wires in a state where any one of the plurality of optical adaptors is mounted at a distal end portion, and CPU that is provided in the main body portion and measures an input impedance of the pair of conductive wires at a frequency of the alternating current signal to perform individual identification of the optical adaptor mounted at the distal end portion based on a measurement result.

Abstract: A cell observation system according to the present invention includes: a first image-acquisition device disposed in an incubator and acquires a first image of cells in a culturing vessel; a second image-acquisition device disposed outside the incubator; a processing device connected to the first image-acquisition device and the second image-acquisition device; and a display displays at least a region of the first image, as well as the second image. The second image-acquisition device includes a second image-acquisition unit that acquires a second image of the interior of the culturing vessel, that removed from the incubator. The processing device extracts target cells in the first image, calculates positions at which the extracted target cells are present and stores the positions in the memory, and causes the display to display the positions at which the target cells are present in a superimposed manner on an indication indicating the culturing vessel.

Abstract: A cell observation system according to the present invention includes: a first image-acquisition device disposed in an incubator and acquires a first image of cells in a culturing vessel; a second image-acquisition device disposed outside the incubator; a processing device connected to the first and second image-acquisition devices; and a display. The second image-acquisition device includes a second image-acquisition unit that acquires a second image of the interior of the culturing vessel that removed from the incubator, a support that supports the second image-acquisition unit and the culturing vessel, and a position measuring unit that measures a position between the culturing vessel and the second image-acquisition unit at the time of acquiring the second image. The processing device extracts target cells in the first image, calculates positions of the target cells, and displays the relationship between the positions of the target cells and the second image.

Abstract: An observation device includes: an illumination optical system configured to emit illumination light to above a sample from below; and an objective optical system configured to acquire an image of transmitted light below the sample in a path different from a path for the illumination optical system, the transmitted light resulting from the illumination light that has been emitted from the illumination optical system, that has been reflected above the sample, and that has passed through the sample. The objective optical system includes, in the vicinity of a pupil plane, a pupil modulation element that partially decreases transmittance and that modulates the phase of light, and the illumination optical system includes a light source, and an illumination-region restricting section configured to restrict light from the light source to a particular emission region.