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Search results for: Thibaud Berthomier
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</div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Thibaud Berthomier</h1> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1</span> Scattering Operator and Spectral Clustering for Ultrasound Images: Application on Deep Venous Thrombi</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Thibaud%20Berthomier">Thibaud Berthomier</a>, <a href="https://publications.waset.org/search?q=Ali%20Mansour"> Ali Mansour</a>, <a href="https://publications.waset.org/search?q=Luc%20Bressollette"> Luc Bressollette</a>, <a href="https://publications.waset.org/search?q=Fr%C3%A9d%C3%A9ric%20Le%20Roy"> Fr茅d茅ric Le Roy</a>, <a href="https://publications.waset.org/search?q=Dominique%20Mottier"> Dominique Mottier</a>, <a href="https://publications.waset.org/search?q=L%C3%A9o%20Fr%C3%A9chier"> L茅o Fr茅chier</a>, <a href="https://publications.waset.org/search?q=Barth%C3%A9l%C3%A9my%20Hermenault"> Barth茅l茅my Hermenault</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Deep Venous Thrombosis (DVT) occurs when a thrombus is formed within a deep vein (most often in the legs). This disease can be deadly if a part or the whole thrombus reaches the lung and causes a Pulmonary Embolism (PE). This disorder, often asymptomatic, has multifactorial causes: immobilization, surgery, pregnancy, age, cancers, and genetic variations. Our project aims to relate the thrombus epidemiology (origins, patient predispositions, PE) to its structure using ultrasound images. Ultrasonography and elastography were collected using Toshiba Aplio 500 at Brest Hospital. This manuscript compares two classification approaches: spectral clustering and scattering operator. The former is based on the graph and matrix theories while the latter cascades wavelet convolutions with nonlinear modulus and averaging operators. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Deep%20venous%20thrombosis" title="Deep venous thrombosis">Deep venous thrombosis</a>, <a href="https://publications.waset.org/search?q=ultrasonography" title=" ultrasonography"> ultrasonography</a>, <a href="https://publications.waset.org/search?q=elastography" title=" elastography"> elastography</a>, <a href="https://publications.waset.org/search?q=scattering%20operator" title=" scattering operator"> scattering operator</a>, <a href="https://publications.waset.org/search?q=wavelet" title=" wavelet"> wavelet</a>, <a href="https://publications.waset.org/search?q=spectral%20clustering." title=" spectral clustering."> spectral clustering.</a> </p> <a 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