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The development of predictive appearance models for organic tissues is a challenging task due to the inherent complexity of these materials. In this thesis, we closely examine the biophysical processes responsible for the appearance attributes of whole blood, one the most fundamental of these materials. We describe a new appearance model that simulates the mechanisms of light propagation and absorption within the cellular and fluid portions of this specialized tissue. The proposed model employs a comprehensive, and yet flexible first principles approach based on the morphological, optical and biochemical properties of blood cells. This approach allows for environment driven changes in the cells' anatomy and orientation to be appropriately included into the light transport simulations. The correctness and predictive capabilities of the proposed model are quantitatively and qualitatively evaluated through comparisons of modeled results with actual measured data and experimental observations reported in the scientific literature. Its incorporation into rendering systems is illustrated through images of blood samples depicting appearance variations controlled by physiologically meaningful parameters. Besides the contributions to the modeling of material appearance, the research presented in this thesis is also expected to have applications in a wide range of biomedical areas, from optical diagnostics to the visualization and noninvasive imaging of blood-perfused tissues.

Self-reported mental health problems have increased dramatically among young female high school (Swedish: gymnasium) and university students in Sweden since the 1990’s. The reasons for this increase are mostly unknown but self-esteem and body image might be important factors behind this problem. The aim of this study was to test whether self-esteem and body dissatisfaction predict health. All correlation directions were in accordance with previous studies on the subject. There was no age group difference in levels of self-esteem, body dissatisfaction or health among the women. Multiple regression analysis revealed that global self-esteem was the strongest single predictor of health. These results give support for the importance of global self-esteem for subjective health. This should be considered in future studies and in the battle against the development of depression, anxiety and eating disorders among women.

Interest is a psychological construct characterized by an explorative tendency towards a stimulus. Product appearance, on the other hand, is an important aspect determining the first impression about products and highly influential on users&rsquo / psychological and behavioral responses, accordingly. In this study, interest evoked by product appearance is explored with an emphasis on visual qualities of products associated with interestingness. This thesis involves arguments from literature and an empirical study.

Product quality is regarded as one of the most important factors that consumers consider while purchasing products. However, contrary to objective quality, perceived product quality includes consumer&#039 / s judgment about the overall superiority or excellence of a product. This study mainly concentrates on the relationship between product appearance and perceived product quality especially for durable goods. The definitions of product quality and perceived product quality are reviewed to explain different dimensions of perceived product quality. Product appearance and the importance of product appearance are explained to reveal the relationship between the consumer and the appearance of the product. Four types of information communicated through the appearance are revealed: aesthetic information, symbolic information, functional information and ergonomic information. In the field study, how these four types of information communicated by the product appearance influence the consumers&rsquo / quality perception is questioned through a quantitative study. Conducted with 100 participants, the results of the questionnaire shows that the appearance influences quality perception in various stages of consumer/product context for durable goods. At the end of the study, it is observed that aesthetic, functional and ergonomic information directly influence consumer&rsquo / s quality perception / wheras, the influence of symbolic information on the perceived quality is found to be limited and indirect.

Thesis (M.A.)--West Virginia University, 2001. / Title from document title page. Document formatted into pages; contains v, 35 p. Includes abstract. Includes bibliographical references (p. 26-31).

The adverse effect of the exposure to images of attractive females on women's body image and mood has been well-documented in studies conducted in various western and westernized nations. However, research designed to determine the effect of exposure to attractive female images on men has been rather neglected. Past findings indicate that after being exposed to exceptionally attractive female images, males report less satisfaction for a current relationship, rate average-looking females as less attractive, and express less affection for their significant other compared to those men exposed to control images. It is currently not known, however, whether a psychoeducational intervention might prevent the negative media exposure effect. Additionally, it is not known if the exposure effect might be moderated by dispositional characteristics of the participant. This study was designed to determine if a psychoeducational manipulation consisting of information regarding the unrealistic appearance standards currently required of women would mitigate the ratings men give of average-looking women following exposure to attractive images. Additionally, two dispositional measures were included (appearance-schematicity and female-ideal internalization) in order to evaluate whether these trait levels would moderate the effects of the exposure manipulation.the participants were 159 male undergraduate students between 18 and 30 years of age. The majority (57%) of them were Caucasian, followed by 19% who were Hispanic/Latino and 11% who were African-American. Their mean age was 19.80 (SD = 2.06) and mean BMI was 24.90 (SD = 4.20). Most of them (42%) were not seeing anyone currently, whereas 39% of them were in a committed relationship. The findings partially supported the hypotheses. The males who were exposed to the attractive female images evaluated average females less physically attractive than those exposed to a control condition (inanimate objects); however, the psychoeducation did not reduce the adverse exposure effect. Instead, the combination of neutral audio-information and control exposure condition resulted in the most favorable ratings of average females. Regarding dispositional characteristics, female-ideal internalization was associated with the loss of interest in dating average females and the overestimation of a current partner's weight after the experiment. The limitations and implications of the study findings are discussed.

The greater body mass of African American females relative to Caucasian females is a well-documented finding implicated in ethnic disparities in health outcomes. The principal aim of the current study was to evaluate a theoretical account that may explain ethnic differences in body mass index. The proposed theoretical account focused on appearance-related concerns regarding the desirability of a thin body type as motivation to engage in weight control behavior. It was hypothesized that Caucasians would evidence greater internalization of the thin ideal than African Americans, which would then be associated with greater dietary restriction and physical activity, thereby predicting lower body mass among caucasians relative to African Americans. It was expected that this model would demonstrate greater applicability to individuals who lack constitutional thinness, i.e., individuals who have struggled with weight management in the past or at present. The study's design w as cross-sectional. African American (n=113) and Caucasian (n= 633) undergraduate, unmarried, heterosexual females between the ages of 18 and 30 completed online questionnaires in which they provided information on their ethnicity,socioeconomic status, ethnic identity, thin-ideal internalization, the perceived romantic appeal of thinness, the importance of romantic need fulfillment, dietary restriction, physical activity, height, current weight, and their highest weight since attaining their current height. Structural equation modeling with LISREL 8.72 was used to evaluate the proposed model. Support for hypotheses was mixed. Among the subset of participants categorized as lacking constitutional thinness, the relationship between ethnicity and body mass was mediated by thin-ideal internalization and the perceived romantic appeal of thinness, each of which contributed independently to dietary restriction, which in turn evidenced a curvilinear relationship with body mass. Results ar e consistent with the notion that ethnic differences in body mass may be partially accounted for by differences in standards for physical appearance, which may then motivate weight control behavior to a greater extent in Caucasians than African Americans.

The visual appearance of an image is a complex function of factors such as scene geometry, material reflectances and textures, illumination, and the properties of the camera used to capture the image. Understanding how these factors interact to produce an image is a fundamental problem in computer vision and graphics. This dissertation examines two aspects of this problem: models of visual appearance that allow us to recover scene properties from images and videos, and tools that allow users to manipulate visual appearance in images and videos in intuitive ways. In particular, we look at these problems in three different applications. First, we propose techniques for compositing images that differ significantly in their appearance. Our framework transfers appearance between images by manipulating the different levels of a multi-scale decomposition of the image. This allows users to create realistic composites with minimal interaction in a number of different scenarios. We also discuss techniques for compositing and replacing facial performances in videos. Second, we look at the problem of creating high-quality still images from low-quality video clips. Traditional multi-image enhancement techniques accomplish this by inverting the camera’s imaging process. Our system incorporates feature weights into these image models to create results that have better resolution, noise, and blur characteristics, and summarize the activity in the video. Finally, we analyze variations in scene appearance caused by changes in lighting. We develop a model for outdoor scene appearance that allows us to recover radiometric and geometric infor- mation about the scene from images. We apply this model to a variety of visual tasks, including color-constancy, background subtraction, shadow detection, scene reconstruction, and camera geo-location. We also show that the appearance of a Lambertian scene can be modeled as a combi- nation of distinct three-dimensional illumination subspaces — a result that leads to novel bounds on scene appearance, and a robust uncalibrated photometric stereo method. / Engineering and Applied Sciences