Optimisation of High Flow Oxygen Therapy Settings During Hypoxaemic Respiratory Distress Based on Non-contact Measurement of Lung Volumes by Depth Camera

The goal of this clinical trial is to validate the interest of a strategy adjusting the flow rate delivered under high-flow oxygen (HFO) therapy according to the lung volumes measured by a new technique, in intensive care patients with hypoxemic respiratory distress (HRD). The main question it aims to answer is: "The use of a technique of measurement of lung pulmonary with adjustement to the flow rate can make it possible to limite intubation in patients with HRD in intensive care?" The participants will be the patients admitted in intensive care for HRD with the need for treatment with HFO. This participants will be randomized in : * the arm control: treated by high flow oxygen therapy according to standard procedures. * or in the experimental arm : treated by high flow oxygen therapy with adjustement of ventilatory parametres based on lung volume measurements, obtained by the depth camera.