Systems, methods, and apparatuses for providing on-board electromagnetic radiation sensing using beam splitting in a radiation sensing apparatus. The radiation sensing apparatuses can include a micro-mirror chip including a plurality of light reflecting surfaces. The apparatuses can also include an image sensor including an imaging surface. The apparatuses can also include a beamsplitter unit located between the micro-mirror chip and the image sensor. The beamsplitter unit can include a beamsplitter that includes a partially-reflective surface that is oblique to the imaging surface and the micro-mirror chip. The apparatuses can also include an enclosure configured to enclose at least the beamsplitter and a light source. With the apparatuses, the light source can be attached to a printed circuit board (PCB). Also, the enclosure can include an inner surface that has an angled reflective surface that is configured to reflect light from the light source in a direction towards the beamsplitter.

A thermography process for thermal imaging systems produced in quantity, including an imaging sensor and an ambient temperature sensor, that includes operations at three different places in the manufacture and actual use of the system. A temperature calibration may be performed on all units of a given design at a small number of controlled scene temperatures at one ambient temperature to produce a function that relates sensor signal to scene temperature. The function is determined for each individual unit and may be unique for each unit. Selected calibrated units may be subjected to a qualification test where they are exposed to larger number of controlled scene temperatures at a plurality of controlled ambient temperatures and the errors between the calibration derived function and the observed results and/or the actual scene temperatures at the various scene/ambient temperature combinations may be derived and put into a table that is loaded into all production units. In actual use of the imaging system, for any given actual observed signal and temperature sensor values, the corresponding scene temperature and/or error may be derived from the table and used to modify the temperature value from the calibration function.

An infrared photodetection system is provided that is capable of measuring infrared light up to high-temperature regions while improving a temperature resolution for low-temperature regions without increasing image-acquisition time even if the measuring temperature range varies. The infrared photodetection system is set up to exhibit sensitivity spectrum SSP1 for high sensitivity (for low temperature use) and sensitivity spectrum SSP2 for low sensitivity (for high temperature use) in the transmission band of the bandpass filter when different voltages are applied to a quantum-dot infrared photodetector. The infrared photodetection system then integrates temperature data for the infrared light detected using sensitivity spectrum SSP1 and temperature data for the infrared light detected using sensitivity spectrum SSP2, in order to output a temperature distribution in a measurement region.

A method for image acquisition includes receiving, by an image acquisition computing device, a digitized LiDAR image frame and a thermal image frame of a region of interest from a read out integrated circuit of an image acquisition device coupled to the image acquisition computing device. The LiDAR image frame and the thermal image frame are processed to detect one or more objects of interest located in the region of interest. The detected one or more objects of interest are correlated between the LiDAR image frame and the thermal image frame. The detected one or more objects of interest are identified based on the correlation between the LiDAR image frame and the thermal image frame. An integrated LiDAR and thermal image acquisition device is also disclosed.

A method for contactlessly establishing a temperature of a surface includes determining the temperature measurement values of the plurality of blind pixels and determining temperature measurement values of the plurality of measurement pixels. The method further includes determining a temperature measurement value and a temperature measurement values by subtracting the temperature measurement value of the first blind pixel of the plurality of blind pixels from a temperature measurement value of a second blind pixel of the plurality of blind. The method further includes correcting the temperature measurement values by pixel-associated temperature drift components in each case, wherein the temperature drift components are determined using the temperature measurement value and/or the temperature measurement value.

A sensor control method that is executed by an air-conditioning apparatus includes: acquiring a first thermal image by scanning an air-conditioned space using the infrared sensor in accordance with a first scanning scheme, the air-conditioning apparatus being placed in the air-conditioned space; extracting a subject thermal image from the first thermal image, based on a difference between a background thermal image of the air-conditioned space when no subject is present therein and the first thermal image; determining a second scanning scheme different from the first scanning scheme, when the subject thermal image has a size smaller than a threshold size; and acquiring a second thermal image by scanning an area corresponding to the subject thermal image of the air-conditioned space using the infrared sensor in accordance with the determined second scanning scheme.

A method of imaging infrared light is provided which comprises: exciting ultrasonic waves in a metal pillar (e.g., Cu pillar); measuring the Time-of-Flight (ToF) of the ultrasonic wave in the waveguide; whereas the ToF is a function of incident Infrared light energy on the waveguide, and reporting the infrared light energy to capture an image. An apparatus of imaging infrared light is provided which comprises: a transducer; a waveguide coupled with the transducer; and a pixel electronic circuit coupled to the transducer, wherein the transducer includes one or more of: PZT, LiNb, AlN, or GaN.

A level and surface temperature gauge includes a housing structure, a level scanner, and a temperature scanner). The level scanner is supported by the housing structure and is configured to generate surface level measurements of a process material surface at a plurality of locations on the surface. The temperature scanner is supported by the housing structure and is configured to generate temperature measurements of the process material surface at a plurality of locations on the surface.

A cooking chamber includes thermal camera of a lower resolution and a color camera of a higher resolution. The two cameras capture images at the same time to obtain a thermal image and a color image. The thermal image is processed to correlate respective subsets of its pixels to corresponding subsets of pixels in the color image for one or more food items identified in the in accordance with established calibration rules, establishing correlations between pixels of the second image to respective sets of pixels corresponding to the one or more food items identified in the two images, where the established calibration rules associate the perspectives and resolutions of the two cameras. A temperature map is generated for the one or more food items with the second resolution in accordance with the established correlations.

Systems, methods, and apparatuses for providing electromagnetic radiation sensing using sequential beam splitting. The apparatuses can include a micro-mirror chip having a plurality of light reflecting surfaces, an image sensor having an imaging surface, and a beamsplitter unit located between the micro-mirror chip and the image sensor. The beamsplitter unit includes a plurality of beamsplitters aligned along a horizontal axis that is parallel to the micro-mirror chip and the imaging surface. The beamsplitters implement the sequential beam splitting. Because of the structure of the beamsplitter unit, the height of the arrangement of the micro-mirror chip, the beamsplitter unit, and the image sensor is reduced such that the arrangement can fit within a mobile device. Within a mobile device, the apparatuses can be utilized for human detection, fire detection, gas detection, temperature measurements, environmental monitoring, energy saving, behavior analysis, surveillance, information gathering and for human-machine interfaces.