1. CASAIR: Content and Shape-Aware Image Retargeting and Its Applications.

    Image Processing, IEEE Transactions on 25(5):2222 (2016) PMID 26886994

    This paper proposes a novel image-retargeting algorithm that can retarget images to a large family of non-rectangular shapes. Specifically, we study image retargeting from a broader perspective that includes the content as well as the shape of an image, and the proposed content and shape-aware i...
  2. Effect of simulated resistance, fleeing, and use of force on standardized field sobriety testing.

    Medicine, Science and the Law 55(3):208 (2015) PMID 24934160

    When a law enforcement officer (LEO) stops a suspect believed to be operating (a vehicle) while impaired (OWI), the suspect may resist or flee, and the LEO may respond with force. The suspect may then undergo a Standardized Field Sobriety Test (SFST) to gauge impairment. It is not known whether ...
  3. Rotor stability separates sustained ventricular fibrillation from self-terminating episodes in humans.

    Journal of the American College of Cardiology 63(24):2712 (2014) PMID 24794115 PMCID PMC4396824

    This study mapped human ventricular fibrillation (VF) to define mechanistic differences between episodes requiring defibrillation versus those that spontaneously terminate. VF is a leading cause of mortality; yet, episodes may also self-terminate. We hypothesized that the initial maintenance of ...
  4. Outcomes after atrioventricular node ablation and biventricular pacing in patients with refractory atrial fibrillation and heart failure: a comparison between non-ischaemic and ischaemic cardiomyopathy.

    Europace 16(6):880 (2014) PMID 24525552

    Atrioventricular junction ablation (AVJA) combined with biventricular (BiV) pacing (AVJA/BiV) is an effective treatment for refractory atrial fibrillation (AF) and rapid ventricular response (RVR) associated with heart failure (HF). This study compared the outcomes between patients with non-isch...
  5. Multiple Atlas construction from a heterogeneous brain MR image collection.

    Medical Imaging, IEEE Transactions on 32(3):628 (2013) PMID 23335665 PMCID PMC3595350

    In this paper, we propose a novel framework for computing single or multiple atlases (templates) from a large population of images. Unlike many existing methods, our proposed approach is distinguished by its emphasis on the sharpness of the computed atlases and the requirement of rotational inva...
  6. Dictionary learning on the manifold of square root densities and application to reconstruction of diffusion propagator fields.

    Information processing in medical imaging : pro... 23:619 (2013) PMID 24684004 PMCID PMC4000552

    In this paper, we present a novel dictionary learning framework for data lying on the manifold of square root densities and apply it to the reconstruction of diffusion propagator (DP) fields given a multi-shell diffusion MRI data set. Unlike most of the existing dictionary learning algorithms wh...
  7. Mechanisms of human atrial fibrillation initiation: clinical and computational studies of repolarization restitution and activation latency.

    Circulation: Arrhythmia and Electrophysiology 5(6):1149 (2012) PMID 23027797 PMCID PMC3833353

    Mechanisms of atrial fibrillation (AF) initiation are incompletely understood. We hypothesized that rate-dependent changes (restitution) in action potential duration (APD) and activation latency are central targets for clinical interventions that induce AF. We tested this hypothesis using clinic...
  8. Conducted electrical weapon incapacitation during a goal-directed task as a function of probe spread.

    Forensic Science Medicine and Pathology 8(4):358 (2012) PMID 22610783

    Despite training and field experience that the location and spread between conducted electrical weapon (CEW) probes is important in establishing incapacitation, there have been no human studies which have systematically examined the relationships between probe spread and incapacitation. We have ...
  9. Specific Pomegranate Juice Components as Potential Inhibitors of Prostate Cancer Metastasis

    Translational oncology 5(5):344,IN2 (2012)

    Pomegranate juice (PJ) is a natural product that inhibits prostate cancer progression. A clinical trial on patients with recurrent prostate cancer resulted in none of the patients progressing to a metastatic stage during the period of the trial. We have previously found that, in additi...
  10. Specific pomegranate juice components as potential inhibitors of prostate cancer metastasis.

    Translational oncology 5(5):344 (2012) PMID 23066443 PMCID PMC3470115

    Pomegranate juice (PJ) is a natural product that inhibits prostate cancer progression. A clinical trial on patients with recurrent prostate cancer resulted in none of the patients progressing to a metastatic stage during the period of the trial. We have previously found that, in addition to caus...
  11. Cellular and molecular mechanisms of pomegranate juice-induced anti-metastatic effect on prostate cancer cells.

    Integrative Biology 3(7):742 (2011) PMID 21594291

    Prostate cancer is the second leading cause of cancer-related deaths among US males. Pomegranate juice (PJ), a natural product, was shown in a clinical trial to inhibit progression of this disease. However, the underlying mechanisms involved in the anti-progression effects of PJ on prostate canc...
  12. Higher-Dimensional Affine Registration and Vision Applications.

    Pattern Analysis and Machine Intelligence, IEEE... 33(7):1324 (2011) PMID 21135439

    Affine registration has a long and venerable history in computer vision literature, and in particular, extensive work has been done for affine registration in R(2) and R(3). This paper studies affine registration in R(m) with m typically ranging from 4 to 12. To justify breaking of this dimensio...
  13. Emergency physician watchdogs for law enforcement: if we are the hammer, everything will look like a nail.

    Annals of Emergency Medicine 57(5):542 (2011) PMID 21513835

  14. Online sparse Gaussian process regression and its applications.

    Image Processing, IEEE Transactions on 20(2):391 (2011) PMID 20716500

    We present a new Gaussian process (GP) inference algorithm, called online sparse matrix Gaussian processes (OSMGP), and demonstrate its merits by applying it to the problems of head pose estimation and visual tracking. The OSMGP is based upon the observation that for kernels with local support, ...
  15. On affine registration of planar point sets using complex numbers

    Computer Vision and Image Understanding 115(1):50 (2011)

    Research highlights ► The main idea is to treat the 2D points as complex numbers and from each point set, a polynomial with complex coefficients can be computed whose roots are the points in the given point set. ► The two-step algorithm rst reduces the affine registration problem to a ...
  16. Nonnegative factorization of diffusion tensor images and its applications.

    Information processing in medical imaging : pro... 22:550 (2011) PMID 21761685 PMCID PMC3140004

    This paper proposes a novel method for computing linear basis images from tensor-valued image data. As a generalization of the nonnegative matrix factorization, the proposed method aims to approximate a collection of diffusion tensor images using nonnegative linear combinations of basis tensor i...
  17. Prehospital ultrasound by paramedics: results of field trial.

    Academic Emergency Medicine 17(6):624 (2010) PMID 20491683

    The objective was to determine if 9-1-1 paramedics trained in ultrasound (US) could adequately perform and interpret the Focused Assessment Sonography in Trauma (FAST) and the abdominal aortic (AA) exams in the prehospital care environment. Paramedics at two emergency medical services (EMS) agen...
  18. Online visual tracking with histograms and articulating blocks

    Computer Vision and Image Understanding 114(8):901 (2010)

    We propose an algorithm for accurate tracking of articulated objects using online update of appearance and shape. The challenge here is to model foreground appearance with histograms in a way that is both efficient and accurate. In this algorithm, the constantly changing foreground shape is...
  19. Statistical analysis of tensor fields.

    PMID 20879290 PMCID PMC3137920

    In this paper, we propose a Riemannian framework for statistical analysis of tensor fields. Existing approaches to this problem have been mainly voxel-based that overlook the correlation between tensors at different voxels. In our approach, the tensor fields are considered as points in a high-di...
  20. Prehospital ultrasound diagnosis of traumatic pericardial effusion.

    Academic Emergency Medicine 16(4):364 (2009) PMID 19302366