Weakly Supervised Object Localization is challenging due to the lack of bounding box annotations. Previous works tend generate a Class Activation Map (CAM) localize object. However, CAM highlights only most discirminative part object and does not highlight whole To address this problem, we propose an Entropy Guided Adversarial model (EGA model) perform better localization objects. EGA uses adve...

One major challenge of Weakly-supervised Temporal Action Localization (WTAL) is to handle diverse backgrounds in videos. To model background frames, most existing methods treat them as an additional action class. However, because frames usually do not share common semantics, squeezing all the different into a single class hinders network optimization. Moreover, would be confused and tends fail ...

We describe the validation of an anatomical brain atlas approach to the analysis of diffuse optical tomography (DOT). Using MRI data from 32 subjects, we compare the diffuse optical images of simulated cortical activation reconstructed using a registered atlas with those obtained using a subject's true anatomy. The error in localization of the simulated cortical activations when using a registe...

When discussing local treatment modalities, physicians often quip that there can be no blind surgeons, suggesting that an inherent advantage to surgery is the ability to precisely visualize the target. Advances in radiation therapy (RT) technology over the years have significantly improved the radiation oncologists’ abilities to precisely sculpt high-dose radiation to a variety of targets, simu...

OBJECTIVE To report the feasibility of magnetic resonance imaging (MRI)-guided intervention for diagnosing suspicious breast lesions detectable by MRI only, using the freehand technique with a 3.0-T closed-bore MRI scanner. MATERIALS AND METHODS Five women with 5 consecutive MRI-only breast lesions underwent MRI-guided intervention: 3 underwent MRI-guided needle localization and 2, MRI-guided...

BACKGROUND Magnetic resonance imaging of the breast has emerged as a valuable imaging tool in addition to conventional imaging modalities. It has high sensitivity for malignant lesions and can detect mammographically, sonographically and clinically occult cancers. "MR only" lesions are best biopsied under MR guidance; however, this may be a challenging task. OBJECTIVES To evaluate our initial...

We demonstrate experimentally that structural perturbations imposed on highly dispersive photonic crystal-based waveguides give rise to spectral features that bear signatures of Anderson localization. Sharp resonances with effective Q's of over 30 000 are found in scattering spectra of disordered waveguides. The resonances are observed in a approximately 20-nm bandwidth centered at the cutoff o...