Abstract: A leak source specification assistance device includes a processing unit that performs processing, based on a movement of a first pixel that is one of pixels constituting an image including a leaking fluid region (gas region), to determine a second pixel that is one of the pixels constituting the image and is a movement source pixel of the first pixel, and repeats the processing with the second pixel newly set as the first pixel to determine a final movement source pixel. The processing unit repeats the processing on each of a plurality of the pixels constituting the image to determine the final movement source pixel for each of the plurality of pixels.

Abstract: A light-emitting device includes a light source that outputs light, a light-guiding unit that guides the light from the light source to a predetermined position, and a heat-absorbing member that is disposed between the light source and the light-guiding unit and that absorbs some or all of heat of the light while allowing the light to pass through the heat-absorbing member.

Abstract: An optical apparatus includes a reader having a contact optical system including an image sensor configured to read light condensed by lenses after passing along light shields each disposed between the lenses, and a fixed member fixed to a position where the fixed member faces the reader and partially or entirely having a white part. The reader is configured to perform reading by adjusting a focus onto an image on a document passing across a position closer to the reader than is the fixed member, and perform reading by adjusting the focus onto the white part of the fixed member.

Abstract: There are provided an inspection image input unit that receives a gas distribution image as an input, the gas distribution image having a visualized presence region of a gas in a space and including an image portion in which a target is irradiated with light, and a reflection-component-reduced image generating unit that generates a reflection-component-reduced image in which an image component of reflected light in the image portion of the gas distribution image received by the inspection image input unit is reduced using an estimation model machine-learned using, as teacher data, a combination of a first image including an image portion in which a target is irradiated with light and a second image including an image portion in which the target is not irradiated with light, the second image being equivalent to the first image for elements other than the image portion.

Abstract: An estimation device and an estimation method are capable of detecting whether or not gas is flowing in a distal-proximal direction from a viewpoint even in a case where gas monitoring is performed on the basis of only an image from one viewpoint. The gas migration estimation device includes: an image input unit that receives, as an input, a gas distribution moving image in which a presence range of gas leaked into a space is indicated as a gas region; and a gas migration estimation unit that estimates a migration state of gas in a distal-proximal direction corresponding to the gas distribution moving image received by the image acquisition unit, by using an estimation model that is machine-learned using a combination of a training gas distribution moving image and a migration state of gas in a distal-proximal direction in the training gas distribution moving image as training data.

Abstract: A gas detection device that gives a notification of a detected gas on the basis of a captured image obtained by capturing an image of a monitoring target, the gas detection device including: a gas detection unit that detects gas on the basis of the captured image and gives a notification of the detected gas; an input unit that receives input information from a user; a mask candidate region extraction unit that extracts a mask candidate region that is a candidate region of a mask region for which a notification of gas detection is suppressed; and a mask generation unit that generates mask data indicating the mask region, in which the gas detection unit gives a notification of a gas detected outside the mask region, and the mask generation unit generates, as the mask data, a region in which first mask candidate region information input from the input unit matches second mask candidate region information extracted by the mask candidate region extraction unit.

Abstract: A gas monitoring device, a gas monitoring method, and a gas monitoring program detect presence or absence of a predetermined gas on the basis of an image obtained by imaging a monitoring target, receive an input of predetermined additional information including alarm activation presence/absence information representing whether or not to activate an alarm, and determine whether or not to suppress alarm activation of presence of gas detected in the detection on the basis of the additional information received.

Abstract: A gas-detection image processing device includes a first processor, a second processor, a third processor, and a setter. The first processor generates a plurality of first images by applying processing to extract a gas candidate region to each of the plurality of infrared images captured in time series. The second processor generates a second image including a first appearance region based on two or more of the first images corresponding to the first predetermined period, and the first appearance region indicates that the gas candidate region has appeared in at least a part of the first predetermined period. The third processor generates a third image including a second appearance region based on two or more of the first images corresponding to a second predetermined period different from the first predetermined period, and the second appearance region indicates that the gas candidate region has appeared in at least a part of the second predetermined period.

Abstract: A gas detection device, a gas detection method, and a gas detection program according to the present invention detect gas on the basis of an image obtained by imaging a detection target. The gas detection device, the gas detection method, and the gas detection program; generated accumulated data obtained by accumulating a number of times of gas detection in a predetermined unit of accumulation, on the basis of a plurality of images captured at a plurality of times different from each other in a predetermined periond; and generate a mask image for suppressing notification of detected gas on the basis of the generated accumulated data.

Abstract: A gas-detection image processing device includes first, second, and third processors. The first processor generates a plurality of first images by applying processing to extract a gas candidate region to each of a plurality of infrared images captured in time series during a predetermined period. The second processor generates a second image, while using the first images, by applying processing to extract an appearance region indicating that a gas candidate region has appeared in at least a part of the predetermined period. The second processor generates two or more second images by applying the processing to extract the appearance region to the first images generated in a manner corresponding to two or more of the predetermined periods respectively. The third processor generates a third image by applying processing to extract a common region of the appearance regions while using the two or more of the second images.

Abstract: A camera device includes a cooling unit that cools an imaging element, a first generation unit that generates stored information (the stored information includes current time and a current position acquired with use of a GPS signal during an operating term of the cooling unit, operating time of the cooling unit measured during the operating term, and identification information of the camera device), a communication unit that transmits the stored information to a server device, a second generation unit that generates image capturing information (the image capturing information includes the current time and the current position acquired with use of the GPS signal during the operating term, the operating time of the cooling unit measured during the operating term, and the identification information of the camera device), and a third generation unit that generates an image associated with the image capturing information based on an infrared image captured by the imaging element during the operating term.

Abstract: A gas flow rate estimation device includes a first calculation unit that calculates, by using an average movement vector of a gas region included in an image, a gas passage time for leaked gas to pass through the gas region, a second calculation unit that calculates a gas volume in the gas region by using a gas concentration thickness product of the gas region, and a third calculation unit that calculates an estimated value of a flow rate of the gas by using the gas passage time and the gas volume.

Abstract: A leak source specification assistance device includes a processing unit that performs processing, based on a movement of a first pixel that is one of pixels constituting an image including a leaking fluid region (gas region), to determine a second pixel that is one of the pixels constituting the image and is a movement source pixel of the first pixel, and repeats the processing with the second pixel newly set as the first pixel to determine a final movement source pixel. The processing unit repeats the processing on each of a plurality of the pixels constituting the image to determine the final movement source pixel for each of the plurality of pixels.

Abstract: There is provided a moving body risk assessment device including a moving body detection unit that detects presence or movement of a moving body within an imaging range on the basis of image information imaged in a wavelength region different from a visible region, and a risk assessment unit that assesses a risk to the detected moving body from the image information and a result of the moving body detection obtained by the moving body detection unit.

Abstract: A camera device includes a cooling unit that cools an imaging element, a first generation unit that generates stored information (the stored information includes current time and a current position acquired with use of a GPS signal during an operating tern of the cooling unit, operating time of the cooling unit measured during the operating term, and identification information of the camera device), a communication unit that transmits the stored information to a server device, a second generation unit that generates image capturing information (the image capturing information includes the current time and the current position acquired with use of the GPS signal during the operating term, the operating time of the cooling unit measured during the operating term, and the identification information of the camera device), and a third generation unit that generates an image associated with the image capturing information based on an infrared image captured by the imaging element during the operating term.

Abstract: An optical device includes: a lens member including a plurality of lenses arranged such that optical axes of the lenses are substantially parallel to one another; and a plurality of column parts that are each provided along the optical axis of each lens among the plurality of lenses and each allow light to pass through inside, each column part having an outer periphery through which light is less likely to pass from inside to outside the column part than through an end portion of the column part in a direction along the optical axis, the plurality of column parts being integrally formed and disposed to face the lens member.

Abstract: An optical device includes: a lens body having multiple lenses arranged such that optical axes thereof are parallel to one another; a light-shielding wall that is disposed for the lens body and blocks, in an optical axis direction, portion of light directed to the multiple lenses; and a sheet member that covers a surface of the light-shielding wall, the surface being perpendicular to the optical axes, and allows light to pass therethrough.

Abstract: A gas detection-use image processing device includes a processing part that performs first processing of acquiring a first image including a region image illustrating a region where a gas candidate has appeared, extracted from an infrared image, on each of a plurality of infrared images captured at a plurality of different times to acquire a plurality of first images. The gas detection-use image processing device also includes a decision part that decides similarity between two first images, in consideration of a movement of the region image in the two first images. The gas detection-use image processing device further includes a determination part that determines whether the gas candidate is a gas, based on the similarity decided by the decision part and whether the region image is moved.

Abstract: A gas detection-use image processing device includes a first processing part that acquires a first image including a first region image indicating a region where a gas candidate has appeared, extracted from an infrared image, on each of a plurality of infrared images captured in time series in a predetermined period to acquire a plurality of first images. The gas detection-use image processing device also includes a second processing part that generates a second image including a second region image in at least a part of the predetermined period, by using the plurality of first images. The first processing part acquires first images in each of at least two predetermined periods. The second processing part generates at least two second images. The gas detection-use image processing device further includes a calculation part that calculates similarity of the at least two second images.

Abstract: An image-processing device, for gas detection that performs image processing on infrared images of a subject being taken at plurality of times a day, includes a hardware processor that generates physical-quantity-change data indicating chronological change in physical quantity determined based on pixel data of pixels constituting the infrared image. The hardware processor selects, from the pixels constituting the infrared image, a reference pixel used as a reference and a comparison pixel to be compared with the reference pixel, and calculates a degree of phase similarity indicating a degree of similarity in phase between a waveform of the physical-quantity-change data of the reference pixel and a waveform of the physical-quantity-change data of the comparison pixel. The hardware processor determines, based on the degree of phase similarity, that an image including the reference pixel and the comparison pixel is not a gas image.