A radiation detector (radiation sensor 1) includes a sensor element (3) and an amplifying transistor (5), reads a current value that flows between the drain and the source based on a change in voltage of a gate electrode of the amplifying transistor (5), and also includes a reset reading circuit (10) that includes an amplifier (11) and reads the current value, and the reset reading circuit (10) outputs an initial voltage to the gate electrode so that the current value becomes a value that is determined in advance.

Disclosed is a temperature distribution measuring device for measuring the temperature distribution or the heat generation distribution in a sample. An embodiment collects a reflection signal the reflectivity of which changes on the basis of a bias signal applied to a sample, detects a signal of interest, which has been reflected from a region of interest in the sample, from the reflected signal, converts the signal of interest to a frequency range signal, calculates the relative amount of change in reflectivity of the sample by using a direct current component extracted on the basis of filtering of the frequency range signal and a frequency component of the bias signal, and acquires a thermal image of the sample on the basis of the relative amount of change in reflectivity.

Optical systems that provide non-uniformity correction devices that are capable of providing low radiance level sources.

A measurement circuit for a resistive sensor comprises an integrator of information representative of the difference between a current passing through the sensor and a first reference current, and a circuit for making the output of the integrator depend on a reference level.

An image capturing apparatus comprises an image capturing unit that includes an image sensor that has an effective pixel region and a reference pixel region which outputs a reference signal for correcting an output signal of the effective pixel region. In a case where a predetermined condition is satisfied, a reduction unit reduces a data amount of reference pixel region data that corresponds to the reference pixel region in an image data obtained by the image capturing unit. A recording unit records the image data after the processing performed by the reduction unit.

The present disclosure relates to an apparatus and methods for generating a hybrid image by high-dynamic-range counting. In an embodiment, the apparatus includes a processing circuitry configured to acquire an image from a pixelated detector, obtain a sparsity map of the acquired image, the sparsity map indicating low-flux regions of the acquired image and high-flux regions of the acquired image, generate a low-flux image and a high-flux image based on the sparsity map, perform event analysis of the acquired image based on the low-flux image and the high-flux image, the event analysis including detecting, within the low-flux image, incident events by an event counting mode, multiply, by a normalization constant, resulting intensities of the high-flux image and the detected incident events of the low-flux image, and generate the hybrid image by merging the low-flux image and the high-flux image.

A plurality of pixels PX include effective pixels and optical black pixels. Signal lines VL are provided corresponding to each column of the pixels PX and supplied with output signals of the pixels PX of the corresponding column. Clip transistors CL are provided corresponding to the respective signal lines VL and limit a potential of the corresponding vertical signal lines VL based on a gate potential. At least in a predetermined operating mode, a potential Vclip_dark is supplied to a gate of one of the clip transistors CL corresponding to at least one pixel column formed of the optical black pixels when reading a noise level from the pixels PX corresponding to the clip transistors CL and when reading a data level from the pixels PX corresponding to the clip transistors CL.

A system for compensating for photodiode errors includes a live photodiode configured to be exposed to a light source and to output a live signal. The system further includes a reference photodiode located proximate to the live photodiode and configured to be isolated from the light source and to output a reference signal. The system further includes a controller configured to generate a compensated output signal by subtracting the reference signal from the live signal.

Optical systems that provide non-uniformity correction devices that are capable of providing low radiance level sources.

A method and system for imaging a target scene using a microbolometer array having multiple lines of microbolometer pixels are disclosed. Each line is switchable between an exposed state and a shielded state, where the line is exposed to the target scene and a reference scene, respectively. The method may include alternating between generating a target frame of the target scene and generating a reference frame of the reference scene, each of which in a rolling shutter mode. The method may also include, concurrently with the generating steps, alternating between sequentially shielding each line after its readout in the exposed state for its next readout in the shielded state, and sequentially exposing each line after its readout in the shielded state for its next readout in the exposed state. The method may also include adjusting the target frames using the reference frames to generate thermal images of the target scene.