A5058820809- Image Retrieval and Classification Techniques
- Advanced Image and Video Retrieval Techniques
- Mental Health Research Topics
- Image Processing and 3D Reconstruction
- Suicide and Self-Harm Studies
- Remote-Sensing Image Classification
- Homelessness and Social Issues
- Advanced Vision and Imaging
- Music and Audio Processing
- Personality Disorders and Psychopathology
- Time Series Analysis and Forecasting
- Obsessive-Compulsive Spectrum Disorders
- Child and Adolescent Psychosocial and Emotional Development
- Psychopathy, Forensic Psychiatry, Sexual Offending
- Psychology of Moral and Emotional Judgment
- Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
- Crime Patterns and Interventions
- Modeling, Simulation, and Optimization
- Neuroethics, Human Enhancement, Biomedical Innovations
- Racial and Ethnic Identity Research
- Health disparities and outcomes
- Mental Health and Psychiatry
- Speech Recognition and Synthesis
- 3D Surveying and Cultural Heritage
- Speech and Audio Processing
Yale University
2023-2025
Northwestern University
2021
Orange (France)
2007
Centre National de la Recherche Scientifique
2004-2005
Laboratoire d'Informatique en Images et Systèmes d'Information
2002-2004
Université Claude Bernard Lyon 1
2002-2003
Clinique Claude-Bernard
2001
Alterations in facial expressions of emotion are a hallmark psychopathology and may be present before the onset mental illness. Technological advances have spurred interest examining alterations based on "thin slices" behavior using automated approaches. However, questions remain. First, can detected ultrathin slices behavior? Second, how do approaches converge with human coding techniques? The study examined (i.e., 1-min) video-recorded clinical interviews 42 individuals at high risk (CHR)...
Suicide risk is highest immediately after psychiatric hospitalization, but the field lacks methods for identifying which patients are at greatest risk, and when. We built personalized models predicting suicidal thoughts hospital visits (N=89 patients), using ecological momentary assessment (EMA; average EMA responses per participant=311). several idiographic models, including baseline autoregressive elastic net (using single train/test split) Gaussian Process (GP) an iterative...
Content based shape image retrieval is an important problem which gained the attention of community. The challenge to map into compact and robust descriptor. This study presents a generalization angular radial transform (ART). ART, recommended by MPEG-7 standard, only limited binary images not perspective deformations. We propose two generalizations ART allowing apply it color make all possible rotations
This paper presents a new three-dimensional shape descriptor: 3D angular radial transform. It is an extension of the 2D region based descriptor proposed by MPEG-7, transform (ART). We propose to generalize ART index models.
Research highlights risk factors across systems, from person to community, for understanding antisocial behavior. However, limited research used person-centered analyses investigate how individual, familial, neighborhood, and structural cluster relate We applied latent profile analysis questionnaires Census-derived data ( N = 478; Northeast sample). A five-profile solution fit best (1: Low Risk; 2: Elevated Personality 3: Family Structural 4: Personality, Family, Neighborhood 5: Risk)....
This paper presents an adaptive color image segmentation method based on cross entropy minimization. is a multi-component approach and provides hierarchical partitioning of the 3D space using spherical neighbourhoods. The number dominant colors (classes) issued from this automatically estimated. avoids priori estimation final classes. then applied for retrieval purposes. Local global descriptors are defined in order to characterize feature these local provide information about activity class...
The network-based visualization of large photo-realistic 3D landscape and city models has received significant attention over the last five years in computer graphics network community. To make such geoweb services appealing to a audience, must reach sufficient level realism faithfulness. first problematic was transmission complex that required use view-dependent, compact progressive representations. combination multiresolution footprint based representation called PBTree [Royan et al. 2006]...
This study addresses the problem of objective performance evaluation image retrieval systems. Considering color feature, a tool for synthetic databases generation is proposed. allows to control number and location dominant colors in Lab space provides also their spatial coherency. It then possible sort exactly images feature. We propose new similarity measure compare described by Based on assumption Gaussian distribution each color, modeled sum these distributions. The performs Kullman's...
Abstract Aim Psychosis is characterized by both alterations in emotional functioning and environmental stressors including bullying victimization. Recent evidence suggests that some (e.g., blunted positive facial expressions) are already present the psychosis risk period. Yet, clinically relevant emotions have not been investigated such as genuine smiles (thought to reflect emotions) non‐genuine fake or mask negative individuals meeting criteria for a clinical high‐risk (CHR) syndrome....