Abstract: A processing device includes: a processor including hardware, the processor being configured to acquire image data; determine, for each pixel of an image corresponding to the acquired image data, whether a pixel value of the pixel is equal to or less than a preset threshold as a dark level; accumulate, for a predetermined number of frames, the pixel value that has been determined to be equal to or less than the preset threshold and positional information regarding a position of the pixel whose pixel value has been determined to be equal to or less than the preset threshold, on the image sensor; calculate a statistical value of the accumulated pixel values for each pixel; determine, for each pixel, whether the statistical value falls outside a preset range; and correct a pixel value of the pixel whose statistical value has been determined to fall outside the preset range.

Abstract: An inspection device includes: an acquisition unit configured to acquire dark-time image data generated in a state where the imaging element is shielded from light; a first generation unit configured to generate average added image data by adding up the dark-time image data and dividing the added-up result by number of frames; a second generation unit configured to generate difference image data in which the average added image data is subtracted from the image data; a first calculation unit configured to calculate, as a lateral streak noise index, a statistical value of the difference image data; a second calculation unit configured to calculate the lateral streak noise indices; a third calculation unit configured to calculate, as the correction value, the correlation degree having a minimum value among the lateral streak noise indices; and a recording control unit configured to record the correction value in a recording unit.

Abstract: A processing device includes: a processor including hardware, the processor being configured to acquire image data; determine, for each pixel of an image corresponding to the acquired image data, whether a pixel value of the pixel is equal to or less than a preset threshold as a dark level; accumulate, for a predetermined number of frames, the pixel value that has been determined to be equal to or less than the preset threshold and positional information regarding a position of the pixel whose pixel value has been determined to be equal to or less than the preset threshold, on the image sensor; calculate a statistical value of the accumulated pixel values for each pixel; determine, for each pixel, whether the statistical value falls outside a preset range; and correct a pixel value of the pixel whose statistical value has been determined to fall outside the preset range.

Abstract: An endoscope includes: pixels arranged in a matrix form and configured to generate an imaging signal according to an amount of received light, and output the imaging signal through one of vertical lines in the pixels, each two pixels adjacent to one another in a horizontal direction sharing a single vertical line; dummy pixels, each provided for each vertical line in the pixels; a determination unit for determining whether output values of dummy signals having been output multiple times from a dummy pixel of the dummy pixels, are within a range of a threshold; a correction data generator configured to: calculate, for each vertical line, a statistic of the output values of the dummy signals determined to be within the range of the threshold; and generate, for each vertical line, correction data based on the calculation; and a correction unit for correcting the imaging signal based on the correction data.

Abstract: An inspection device includes: an acquisition unit configured to acquire dark-time image data generated in a state where the imaging element is shielded from light; a first generation unit configured to generate average added image data by adding up the dark-time image data and dividing the added-up result by number of frames; a second generation unit configured to generate difference image data in which the average added image data is subtracted from the image data; a first calculation unit configured to calculate, as a lateral streak noise index, a statistical value of the difference image data; a second calculation unit configured to calculate the lateral streak noise indices; a third calculation unit configured to calculate, as the correction value, the correlation degree having a minimum value among the lateral streak noise indices; and a recording control unit configured to record the correction value in a recording unit.

Abstract: An endoscope includes: pixels arranged in a matrix form and configured to generate an imaging signal according to an amount of received light, and output the imaging signal through one of vertical lines in the pixels, each two pixels adjacent to one another in a horizontal direction sharing a single vertical line; dummy pixels, each provided for each vertical line in the pixels; a determination unit for determining whether output values of dummy signals having been output multiple times from a dummy pixel of the dummy pixels, are within a range of a threshold; a correction data generator configured to: calculate, for each vertical line, a statistic of the output values of the dummy signals determined to be within the range of the threshold; and generate, for each vertical line, correction data based on the calculation; and a correction unit for correcting the imaging signal based on the correction data.

Abstract: An endoscope system includes: a light source; an image sensor having pixels, each performing photoelectric conversion on received light to output an electric signal, and the image sensor imaging a subject to generate image data of the subject; a difference calculation unit that calculates, for each pixel, difference data between a dark image and a dark reference image, the dark image being output from the image sensor during lights-out time when the light source is turned off, and the dark reference image having been preliminarily obtained by averaging dark images generated by the image sensor; a detection unit that detects in the difference data a pixel whose pixel value is a threshold or more, as a blinking defective pixel in the image sensor; and a correction unit that corrects the electric signal output from the blinking defective pixel, using electric signals output from neighboring pixels of the blinking defective pixel.

Abstract: An endoscope system includes: a light source; an image sensor having pixels, each performing photoelectric conversion on received light to output an electric signal, and the image sensor imaging a subject to generate image data of the subject; a difference calculation unit that calculates, for each pixel, difference data between a dark image and a dark reference image, the dark image being output from the image sensor during lights-out time when the light source is turned off, and the dark reference image having been preliminarily obtained by averaging dark images generated by the image sensor; a detection unit that detects in the difference data a pixel whose pixel value is a threshold or more, as a blinking defective pixel in the image sensor; and a correction unit that corrects the electric signal output from the blinking defective pixel, using electric signals output from neighboring pixels of the blinking defective pixel.

Abstract: A member covered with a self-fluxing alloy sprayed coating is produced by previously forming a porous ceramic sprayed coating on a surface of a self-fluxing alloy sprayed coating prior to a refusing treatment of the coating formed on a substrate, heating the sprayed coating in an inert gas atmosphere controlled to 1˜300 hPa or by a high frequency induction heating system and thereafter removing the ceramic sprayed coating to expose the self-fluxing alloy sprayed coating. This member is uniform in the thickness, less in the retention of pores or oxide impurities and has a strong coating property.