3D human pose estimation from depth maps using a deep combination of poses

Many real-world applications require the estimation of human body joints for higher-level tasks as, for example, human behaviour understanding. In recent years, depth sensors have become a popular approach to obtain three-dimensional information. The depth maps generated by these sensors provide information that can be employed to disambiguate the poses observed in two-dimensional images. This work addresses the problem of 3D human pose estimation from depth maps employing a Deep Learning approach. We propose a model, named Deep Depth Pose (DDP), which receives a depth map containing a person and a set of predefined 3D prototype poses and returns the 3D position of the body joints of the person. In particular, DDP is defined as a ConvNet that computes the specific weights needed to linearly combine the prototypes for the given input. We have thoroughly evaluated DDP on the challenging 'ITOP' and 'UBC3V' datasets, which respectively depict realistic and synthetic samples, defining a new state-of-the-art on them.Comment: Accepted for publication at "Journal of Visual Communication and Image Representation

How triathletes mount their bikes after first transition (T1). A proposal of classification

A proposal is submit for the classification referring to the different ways in which triathletes mount their bikes to start pedalling. This action happens at the end of the transition area (T1) after having gone across on foot, with the bikes at their side, or, led across by hand, in a specific way (Fernández, Romero, Merino and April, 2015). These are unique aspects of this sport, compared to other sports in which a bike is also used. The purpose of this research was concentrates in describing and classifying the motor behaviours that occur at the end of the transition area, in front of the “judge’s line”. This study was bassed on participants of 3 Spanish Elite Championships of different distances (407 triathletes). It was filmed in the moment when they picked up their bikes, passed through the transition area and mounted their bikes. Eleven different ways were discovered on how to mount a bike when passing the judge’s line.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tec

A Transformation-based Implementation for CLP with Qualification and Proximity

Uncertainty in logic programming has been widely investigated in the last decades, leading to multiple extensions of the classical LP paradigm. However, few of these are designed as extensions of the well-established and powerful CLP scheme for Constraint Logic Programming. In a previous work we have proposed the SQCLP (proximity-based qualified constraint logic programming) scheme as a quite expressive extension of CLP with support for qualification values and proximity relations as generalizations of uncertainty values and similarity relations, respectively. In this paper we provide a transformation technique for transforming SQCLP programs and goals into semantically equivalent CLP programs and goals, and a practical Prolog-based implementation of some particularly useful instances of the SQCLP scheme. We also illustrate, by showing some simple-and working-examples, how the prototype can be effectively used as a tool for solving problems where qualification values and proximity relations play a key role. Intended use of SQCLP includes flexible information retrieval applications.Comment: 49 pages, 5 figures, 1 table, preliminary version of an article of the same title, published as Technical Report SIC-4-10, Universidad Complutense, Departamento de Sistemas Inform\'aticos y Computaci\'on, Madrid, Spai

A study of co-movements between USA and Latin American stock markets: a cross-bicorrelations perspective

In this paper we use the Brooks and Hinich cross-bicorrelation test in order to uncover nonlinear dependence periods between USA Standard and Poor 500 (SP500), used as benchmark, and six Latin American stock markets indexes: Mexico (BMV), Brazil (BOVESPA), Chile (IPSA), Colombia (COLCAP), Peru (IGBVL) and Argentina (MERVAL). We have found windows of nonlinear dependence and co-movement between the SP500 and the Latin American stock markets, some of which coincide with periods of crisis, giving way to a possible contagion or interdependence interpretation.Comment: Working paper, 9 page

The Treaty of Anatomy, Descriptive and Surgical

No Abstrac

Mast cell quantification and substance P immunoreactivity during the acute and chronic stages of pneumonic pasteurellosis in ruminants

The objective of this work was to determine the numbers of stained mast cells (MCs) and substance P (SP) immunoreactivity during the initiation and progression of pulmonary lesions in a model of pneumonic pasteurellosis (PP) in ruminants. The first experiment demonstrated that, at 6 h after intrabronchial deposition of Mannheimia (Pasteurella) haemolytica in neonatal calves, MC numbers decreased in sites of severe lung damage. Prior administration of a sialyl Lewis mimetic (TBC1269) intended to prevent neutrophil infiltration had no effect on MC numbers, suggesting that MC degranulation is unaffected by selectin inhibition. In the second study, a single high dose of dihydrocapsaicin (DHC) administered to neonatal lambs depleted peptidergic nerves of SP. Depletion was measured in nasal septum, the site richest in SP fibers, and was estimated to be 85% of controls. In the upper and lower respiratory tract MCs density increased progressively with age, from 3 to 21 days, but DHC-treated animals had significantly higher numbers of MCs; this suggests a functional association between MCs and SP fibers. Histamine content in the lung was similar to controls. The model is suitable for studies of the inflammatory response in the respiratory tract when the neurogenic contribution is reduced. In the third experiment, diminished numbers of MCs and histamine during the acute phase (1 day) of PP in sheep were associated with SP immunoreactivity in macrophages infiltrating the areas of severe damage, suggesting an extraneural source of SP. At 15 days, MCs were scarce at sites with pyogranulomatous foci, but increased in areas with interstitial pneumonia. Substance P immunoreactivity demonstrated that not only an extrinsic sensory innervation, but also an intrinsic contribution of pulmonary ganglion neurons, sustain the inflammatory response. At 45 days the fibroplastic changes in pleura, interlobular spaces, and interstitium were marked, as was the presence of bronchiolitis obliterans. These changes were associated with an increased number of MCs; however, the elevation in histamine did not correspond with the MCs increment. In areas of severe fibrosis SP immunoreactivity in nerve fibers was mild suggesting that the absence of SP during chronic PP hinders tissue repair