Object recognition using shape-from-shading

This paper investigates whether surface topography information extracted from intensity images using a recently reported shape-from-shading (SFS) algorithm can be used for the purposes of 3D object recognition. We consider how curvature and shape-index information delivered by this algorithm can be used to recognize objects based on their surface topography. We explore two contrasting object recognition strategies. The first of these is based on a low-level attribute summary and uses histograms of curvature and orientation measurements. The second approach is based on the structural arrangement of constant shape-index maximal patches and their associated region attributes. We show that region curvedness and a string ordering of the regions according to size provides recognition accuracy of about 96 percent. By polling various recognition schemes. including a graph matching method. we show that a recognition rate of 98-99 percent is achievable

New constraints on data-closeness and needle map consistency for shape-from-shading

This paper makes two contributions to the problem of needle-map recovery using shape-from-shading. First, we provide a geometric update procedure which allows the image irradiance equation to be satisfied as a hard constraint. This not only improves the data closeness of the recovered needle-map, but also removes the necessity for extensive parameter tuning. Second, we exploit the improved ease of control of the new shape-from-shading process to investigate various types of needle-map consistency constraint. The first set of constraints are based on needle-map smoothness. The second avenue of investigation is to use curvature information to impose topographic constraints. Third, we explore ways in which the needle-map is recovered so as to be consistent with the image gradient field. In each case we explore a variety of robust error measures and consistency weighting schemes that can be used to impose the desired constraints on the recovered needle-map. We provide an experimental assessment of the new shape-from-shading framework on both real world images and synthetic images with known ground truth surface normals. The main conclusion drawn from our analysis is that the data-closeness constraint improves the efficiency of shape-from-shading and that both the topographic and gradient consistency constraints improve the fidelity of the recovered needle-map

A tri-dimensional approach for auditing brand loyalty

Over the past twenty years brand loyalty has been an important topic for both marketing practitioners and academics. While practitioners have produced proprietary brand loyalty audit models, there has been little academic research to make transparent the methodology that underpins these audits and to enable practitioners to understand, develop and conduct their own audits. In this paper, we propose a framework for a brand loyalty audit that uses a tri-dimensional approach to brand loyalty, which includes behavioural loyalty and the two components of attitudinal loyalty: emotional and cognitive loyalty. In allowing for different levels and intensity of brand loyalty, this tri-dimensional approach is important from a managerial perspective. It means that loyalty strategies that arise from a brand audit can be made more effective by targeting the market segments that demonstrate the most appropriate combination of brand loyalty components. We propose a matrix with three dimensions (emotional, cognitive and behavioural loyalty) and two levels (high and low loyalty) to facilitate a brand loyalty audit. To demonstrate this matrix, we use the example of financial services, in particular a rewards-based credit card

Insect (Arthropoda: Insecta) Composition in the Diet of Ornate Box Turtles (Terrapene ornata ornata) in Two Western Illinois Sand Prairies, with a New State Record for Cyclocephala (Coleoptera: Scarabaeidae)

A study of fecal samples collected over a two-year period from juvenile ornate box turtles (Terrapene ornata ornata Agassiz) revealed diets consisting of six orders of insects representing 19 families. Turtles were reared in captivity from eggs harvested from local, wild populations, and released at two remnant prairies. Identifiable insect fragments were found in 94% of samples in 2013 (n=33) and 96% in 2014 (n=25). Frequency of occurrence of insects in turtle feces is similar to results reported in previous studies of midwestern Terrapene species. A comparison of insect composition presented no significant difference between release sites. There is no significant difference in consumed insect species between turtles released into or outside of a fenced enclosure at the same site. Specimens of Cyclocephala longula LeConte collected during this study represent a new state record for Illinois

Cultural aspects of primary healthcare in india: A case- based analysis

Delivering quality primary care to large populations is always challenging, and that is certainly the case in India. While the sheer magnitude of patients can create difficulties, not all challenges are about logistics. Sometimes patient health-seeking behaviour leads to delays in obtaining medical help for reasons that have more to do with culture, social practice and religious belief. When primary care is accessed via busy state-run outpatient departments there is often little time for the physician to investigate causes behind a patient's condition, and these factors can adversely affect patient outcomes. We consider the case of a woman with somatic symptoms seemingly triggered by psychological stresses associated with social norms and familial cultural expectations. These expectations conflict with her personal and professional aspirations, and although she eventually receives psychiatric help and her problems are addressed, initially, psycho-social factors underlying her condition posed a hurdle in terms of accessing appropriate medical care. While for many people culture, belief and social norms exert a stabilising, positive influence, in situations where someone's personal expectations differ significantly from accepted social norms, individual autonomy can be directly challenged, and in which case, something has to give. The result of such challenges can negatively impact on health and well-being, and for patients with immature defence mechanisms for dealing with inner conflict, such an experience can be damaging and ensuing somatic disturbances are often difficult to treat. Patients with culture-bound symptoms are not uncommon within primary care in India or in other Asian countries and communities. We argue that such cases need to be properly understood if satisfactory patient outcomes are to be achieved. While some causes are structural, having to do with how healthcare is accessed and delivered, others are about cultural values, social practices and beliefs. We note how some young adult women are adversely affected and discuss some of the ethical issues that arise

THE EFFECT OF SELECTED KINEMATICS ON BALL SPEED AND GROUND REACTION FORCES IN FAST BOWLING

Lumbar stress fractures and lumbar injury account for the greatest amount of lost playing time in international cricket. Previous research has associated lower back injury with large peak ground reaction forces occurring during the front foot contact phase of the fast bowling action. Selected kinematics of the bowling action of 16 elite male fast bowlers were measured using an 18 camera Vicon Motion Analysis System. Ground reaction forces during front foot contact and ball release speed were recorded; correlations with kinematic factors were identified using Pearson’s correlation coefficient. Ball release speeds were correlated with run-up speed, plant angle and the motion of the front knee during the period of front foot contact. Knee flexion during the first 15 frames of the front foot contact phase was correlated with increased peak vertical force and decreased peak horizontal loading rate. The use of a heel strike technique at the instant of front foot contact was correlated with decreased peak vertical force and loading rates. All correlations observed were moderate in strength, representing the multifactorial nature of the generation of ball speed and ground reaction forces. This study motivates future investigation of the effects of these selected kinematic factors on forces occurring above the knee, and the effect of kinematic factors on the performance of an individual bowler

Evaluando el perfil de la ética, el derecho y el profesionalismo en la educación médica básica

AbstractSubstantial variation exists between schools and countries as regards the role of ethics, law and professionalism in medical curricula. Greater consistency of approach is needed between schools and countries to better safeguard standards of professional practice. From an international perspective these subjects are the focus of increasing attention as the nature of medical practice and regulation changes. This paper offers practical suggestions for raising the educational profile and integrating ethics, law and professionalism into medical curricula. Dealing with the subjects effectively during early medical training helps provide an appropriate grounding for future learning and practice

DOES THE UTTO MODEL OF TECHNOLOGY TRANSFER FIT PUBLIC SECTOR HEALTHCARE SERVICES?

Public sector healthcare services are both large users and innovators of health technologies. In the UK's National Health Service (NHS) initiatives have been developed to manage the process of technological innovation more effectively. This has two main aims, to maximize potential commercial returns from innovations developed within the NHS; and to improve levels of patient care through appropriate diffusion of innovations. The initiatives have been devised using approaches and processes already used in other public sector organizations, in particular, universities. Central to the approach taken by many universities is the setting up of a university technology transfer office (UTTO) to provide innovation management services. This paper assesses the extent to which the UTTO-based approach to technology transfer matches the needs of the NHS. Several significant factors are identified that suggest that the two sectors merit different approaches to innovation management. An agenda for further research into health service innovation management processes is suggested that emphasises issues including: the relative roles of formal and informal innovation processes; contingent variables affecting design of innovation processes; limitations of technology-push approaches to managing practice-based innovation; and cultural fit of innovation management models