A gas detection-use image processing device is provided with a first input unit on which an operation of inputting a flow rate of gas used as an index of a gas concentration level which is wanted to be detected is performed to input the flow rate, a second input unit to which an image of an imaging target taken by the imaging device is input, and a first calculation unit which calculates, when the image is taken in a state in which the gas of the flow rate appears in an imaging range of the imaging device, a region in which the gas may be visualized in the imaging range.

A fluid sensor includes a substrate having a top main surface region, wherein the top main surface region of the substrate forms a common system plane of the fluid sensor, a thermal radiation emitter on the top main surface region of the substrate, an optical filter structure on the top main surface region of the substrate, a waveguide on the main top surface region of the substrate, and a thermal radiation detector on the top main surface region of the substrate, wherein the thermal radiation detector provides a detector output signal based on a radiation strength of the filtered thermal radiation received from the waveguide.

A fluid sensor includes a substrate having a top main surface region, wherein the top main surface region of the substrate forms a common system plane of the fluid sensor, a thermal radiation emitter on the top main surface region of the substrate, an optical filter structure on the top main surface region of the substrate, a waveguide on the main top surface region of the substrate, and a thermal radiation detector on the top main surface region of the substrate, wherein the thermal radiation detector provides a detector output signal based on a radiation strength of the filtered thermal radiation received from the waveguide.

Methods, apparatuses, and systems for improving gas detecting devices are provided. An example gas detecting device may include a receiver element. In some examples, the receiver element may include a sample filter component and a reference filter component. In some examples, the sample filter component may be positioned coaxially with the reference filter component.

Methods, apparatuses, and systems for improving gas detecting devices are provided. An example gas detecting device may include a receiver element. In some examples, the receiver element may include a sample filter component and a reference filter component. In some examples, the sample filter component may be positioned coaxially with the reference filter component.

This gas imaging device makes it possible to photograph gas without placing a burden on a user while enhancing the evidential reliability of imaging results. This gas imaging device comprises: an infrared imaging section for imaging, under a predetermined first photography condition, infrared radiation from a given area from which gas could leak; an image processing section for generating an image of the given area on the basis of output results from the infrared imaging section; and a control section for, on the basis of vicinity information for the given area and the output results of the infrared imaging section, calculating a reliability indicating whether the first photography condition is suitable for photography of the gas and storing an image of the given area in a storage section in association with at least one from among the reliability and the vicinity information.

Systems, methods, and computer program products for infrared (IR) image operations are provided. An example imaging system includes a first IR imaging device configured to generate first IR image data and a second IR imaging device configured to generate second IR image data. The system further includes a computing device that receives the first IR image data from the first IR imaging device and receives the second IR image data from the second IR imaging device. The computing device further determines a first feature representing a position of a gas plume based upon the first IR image data and a second feature representing a position of the gas plume based upon the second IR image data and determines a disparity between the first and second features. The computing device further determines a distance between the imaging system and the gas plume based upon the determined disparity.

Systems, methods, and computer program products for infrared (IR) image operations are provided. An example imaging system includes a first IR imaging device configured to generate first IR image data and a second IR imaging device configured to generate second IR image data. The system further includes a computing device that receives the first IR image data from the first IR imaging device and receives the second IR image data from the second IR imaging device. The computing device further determines a first feature representing a position of a gas plume based upon the first IR image data and a second feature representing a position of the gas plume based upon the second IR image data and determines a disparity between the first and second features. The computing device further determines a distance between the imaging system and the gas plume based upon the determined disparity.

A method of detecting natural gas releases that includes the step of traversing a target area with a gas-filter correlation radiometer having a field of view oriented towards the target area. The gas-filter correlation radiometer receives reflected radiation in a passband from the target area and produces gas-filter correlation radiometer signals from the received reflected radiation. A surface reflectivity spectral profile of the target area is determined. The presence of methane in the target area is then determined based upon the received reflected radiation and the surface reflectivity spectral profile of the target area.

A method of detecting natural gas releases that includes the step of traversing a target area with a gas-filter correlation radiometer having a field of view oriented towards the target area. The gas-filter correlation radiometer receives reflected radiation in a passband from the target area and produces gas-filter correlation radiometer signals from the received reflected radiation. A surface reflectivity spectral profile of the target area is determined. The presence of methane in the target area is then determined based upon the received reflected radiation and the surface reflectivity spectral profile of the target area.