Exposure fusion

After correcting for small shifts that may inadvertently happen with hand-held devices, the full-image can be fused in two ways:[3] The former method assumes a linear response from the camera, which may be provided by DNG or other raw formats.

Some variants can take developed images, but the process of reconstructing the intensities is complicated and noisy, compromising the effective dynamic range.

[5] The latter method [Mertens-Kautz-Van Reeth (MKVr)] only cares about aligning features and taking the best parts, automatically (by contrast, saturation, and proper exposure) or manually, so it is immune to this drawback.

The spatial distribution of THz radiation reflected from the object under study has large brightness differences that do not allow it to be registered by a single ADC.

To solve this problem, two ADCs are connected to the synchronous amplifier, allowing two sets of data to be received simultaneously.