Medical Imaging
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Tone Mapping for X-Ray images
Inspecting X-ray images is an essential aspect for medical diagnosis and for nondestructive control of manufactured objects in the industrial field. However, X-ray images are characterized by a high dynamic range and a low contrast. Due to those characteristics, and the limitation of the human visual system, important aspects such as nodules, bones fractures, gas inclusions or other kind of defects and anomalies are difficult to identify for the human eyes.The challenge is therefore to reduce the image bit depth, while preserving subtle and fine-grained local variation in the image.Mar 4, 2020 -
Compressive Lensless Speckle Imaging
The lensless endoscope (LE) is a promising device to acquire _in vivo_ biological images at a cellular scale. In addition to its high resolution, the tiny size of the probe allows a deep exploration of the tissues. This research aims at exploring acquisition strategies inspired by the compressive sampling theory and relying on two key properties of the LE: (_i_) the ability to easily generate unstructured illumination patterns by randomly programming the spatial light modulator and (_ii_) the robustness of the fiber to spatial and temporal distortion allowing the use of fast galvanometer mirrors to shift light patterns.Feb 28, 2020
