Rapid Foreground Extraction Algorithm Based on Trimap

2012 ◽  
Vol 490-495 ◽  
pp. 1821-1825
Author(s):  
Shao Wei Zeng ◽  
Zhu Liang

Foreground extraction is a very important operation in the image processing of the computers. Its purpose is to extract the area that human beings are interested in from the complicated background, which is beneficial for the subsequent operations such as background exchange, changes of the perspective effect and image mosaicing and so on. However, it is actually an ill-posed problem to determine whether a pixel belongs to the foreground. It is usually hard to acquire an accurate solution from the initial image. Therefore, the foreground extraction algorithm generally needs the user interaction. This paper has put forward a kind of rapid foreground extraction algorithm with the user interaction form of Trimap. On the one hand, our Trimap is quite simple. The users are able to understand the influence of Trimap on the productive resultants visually. On the other hand, with the help of Trimap, we are able to lessen the area that needs to be calculated in a large degree, which can rapidly finish the work of foreground extraction.

Author(s):  
Ursula Coope

The Neoplatonists have a perfectionist view of freedom: an entity is free to the extent that it succeeds in making itself good. Free entities are wholly in control of themselves: they are self-determining, self-constituting, and self-knowing. Neoplatonist philosophers argue that such freedom is only possible for nonbodily things. The human soul is free insofar as it rises above bodily things and engages in intellection, but when it turns its desires to bodily things, it is drawn under the sway of fate and becomes enslaved. This book discusses this notion of freedom, and its relation to questions about responsibility. It explains the important role of notions of self-reflexivity in Neoplatonist accounts of both freedom and responsibility. Part I sets out the puzzles Neoplatonist philosophers face about freedom and responsibility and explains how these puzzles arise from earlier discussions. Part II looks at the metaphysical underpinnings of the Neoplatonist notion of freedom (concentrating especially on the views of Plotinus and Proclus). In what sense (if any) is the ultimate first principle of everything (the One) free? If everything else is under this ultimate first principle, how can anything other than the One be free? What is the connection between freedom and nonbodiliness? Part III looks at questions about responsibility, arising from this perfectionist view of freedom. Why are human beings responsible for their behaviour, in a way that other animals are not? If we are enslaved when we act viciously, how can we be to blame for our vicious actions and choices?


2021 ◽  
Vol 11 (8) ◽  
pp. 3397
Author(s):  
Gustavo Assunção ◽  
Nuno Gonçalves ◽  
Paulo Menezes

Human beings have developed fantastic abilities to integrate information from various sensory sources exploring their inherent complementarity. Perceptual capabilities are therefore heightened, enabling, for instance, the well-known "cocktail party" and McGurk effects, i.e., speech disambiguation from a panoply of sound signals. This fusion ability is also key in refining the perception of sound source location, as in distinguishing whose voice is being heard in a group conversation. Furthermore, neuroscience has successfully identified the superior colliculus region in the brain as the one responsible for this modality fusion, with a handful of biological models having been proposed to approach its underlying neurophysiological process. Deriving inspiration from one of these models, this paper presents a methodology for effectively fusing correlated auditory and visual information for active speaker detection. Such an ability can have a wide range of applications, from teleconferencing systems to social robotics. The detection approach initially routes auditory and visual information through two specialized neural network structures. The resulting embeddings are fused via a novel layer based on the superior colliculus, whose topological structure emulates spatial neuron cross-mapping of unimodal perceptual fields. The validation process employed two publicly available datasets, with achieved results confirming and greatly surpassing initial expectations.


2020 ◽  
Vol 3 (1) ◽  
pp. 68-80 ◽  
Author(s):  
Georg W. Bertram

AbstractThe concept of second nature promises to provide an explanation of how nature and reason can be reconciled. But the concept is laden with ambiguity. On the one hand, second nature is understood as that which binds together all cognitive activities. On the other hand, second nature is conceived of as a kind of nature that can be changed by cognitive activities. The paper tries to investigate this ambiguity by distinguishing a Kantian conception of second nature from a Hegelian conception. It argues that the idea of a transformation from a being of first nature into a being of second nature that stands at the heart of the Kantian conception is mistaken. The Hegelian conception demonstrates that the transformation in question takes place within second nature itself. Thus, the Hegelian conception allows us to understand the way in which second nature is not structurally isomorphic with first nature: It is a process of ongoing selftransformation that is not primarily determined by how the world is, but rather by commitments out of which human beings are bound to the open future.


2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Rosabelle Boswell

This paper considers the role of art in ocean conservation. Drawing on the presentations and work of two artists featured in the One Ocean Hub Art and Emotions webinar hosted during the UN World Ocean Week, the paper focuses specifically on the sensorial nature of art and of human beings and the role that art can play in advancing ocean conservation. The main argument offered is that ocean conservation plans and policies should consider the importance of humans to ocean conservation, the importance of human artistic endeavour to ocean activism and finally the importance of the sensory to human experience. Acknowledging and recognising the importance of human sensory experience in relation to the sea, can nuance existing discourses of ocean use and benefits, revealing human priorities and potential obstacles to conservation. Third, by leveraging human sensory expression through art, ocean conservation advocates may be able to refine and produce more effective communication for ocean conservation. Finally, recognising the sensory (and the artistic) is key to reorienting humanity as it enters a post-anthropocentric age, marked by dramatic ecological change.


Author(s):  
Yolanda Dreyer

The aim of the article is to argue that the sexual difference between female and male should be regarded as soteriologically indifferent. Though a biological reality of being human, sexuality is profoundly influenced by social constructs and the institution of marriage itself is a social construct. In this article the biological and social aspects are taken into account in a theological approach which on the one hand is interested in the relationship between God and human beings, and on the other in the way in which the Bible elucidates sexuality and marriage. The article indicates that the idea of sexual intercourse between a man and a woman as being equal to Godgiven “holy matrimony” has mythological origins. It focuses on these origins and on the multifarious forms of marital arrangements and models.


Early China ◽  
2018 ◽  
Vol 41 ◽  
pp. 179-243 ◽  
Author(s):  
Armin Selbitschka

AbstractOne of the medical manuscripts recovered from Tomb No. 3 at Mawangdui (dated 186 b.c.e.) states that, “When a person is born there are two things that need not to be learned: the first is to breathe and the second is to eat.” Of course it is true that all healthy newborn human beings possess the reflexes to breathe and eat. Yet, the implications of death should have been just as obvious to the ancient Chinese. Once the human brain ceases to function, there is no longer a biological need for oxygen and nourishment. Nevertheless, a large number of people in late pre-imperial and early imperial China insisted on burying food and drink with the dead. Most modern commentators take the deposition of food and drink as burial goods to be a rather trite phenomenon that warrants little reflection. To their minds both kinds of deposits were either intended to sustain the spirit of the deceased in the hereafter or simply a sacrifice to the spirit of the deceased. Yet, a closer look at the archaeological evidence suggests otherwise. By tracking the exact location of food and drink containers in late pre-imperial and early imperial tombs and by comprehensively analyzing inscriptions on such vessels in addition to finds of actual food, the article demonstrates that reality was more complicated than this simple either/or dichotomy. Some tombs indicate that the idea of continued sustenance coincided with occasional sacrifices. Moreover, this article will introduce evidence of a third kind of sacrifice that, so far, has gone unnoticed by scholarship. Such data confirms that sacrifices to spirits other than the one of the deceased sometimes were also part of funerary rituals. By paying close attention to food and drink as burial goods the article will put forth a more nuanced understanding of early Chinese burial practices and associated notions of the afterlife.


2016 ◽  
Vol 4 (1) ◽  
pp. 67-91 ◽  
Author(s):  
Steffen Dalsgaard

This article refers to carbon valuation as the practice of ascribing value to, and assessing the value of, actions and objects in terms of carbon emissions. Due to the pervasiveness of carbon emissions in the actions and objects of everyday lives of human beings, the making of carbon offsets and credits offers almost unlimited repertoires of alternatives to be included in contemporary carbon valuation schemes. Consequently, the article unpacks how discussions of carbon valuation are interpreted through different registers of alternatives - as the commensuration and substitution of variants on the one hand, and the confrontational comparison of radical difference on the other. Through the reading of a wide selection of the social science literature on carbon markets and trading, the article argues that the value of carbon emissions itself depends on the construction of alternative, hypothetical scenarios, and that emissions have become both a moral and a virtual measure pitting diverse forms of actualised actions or objects against each other or against corresponding nonactions and non-objects as alternatives.


Author(s):  
A. Masiero ◽  
A. Guarnieri ◽  
F. Pirotti ◽  
A. Vettore

Due to the effect of climate factors, natural phenomena and human usage, buildings and infrastructures are subject of progressive degradation. The deterioration of these structures has to be monitored in order to avoid hazards for human beings and for the natural environment in their neighborhood. Hence, on the one hand, monitoring such infrastructures is of primarily importance. On the other hand, unfortunately, nowadays this monitoring effort is mostly done by expert and skilled personnel, which follow the overall data acquisition, analysis and result reporting process, making the whole monitoring procedure quite expensive for the public (and private, as well) agencies. <br><br> This paper proposes the use of a partially user–assisted procedure in order to reduce the monitoring cost and to make the obtained result less subjective as well. The developed method relies on the use of images acquired with standard cameras by even inexperienced personnel. The deterioration on the infrastructure surface is detected by image segmentation based on a level sets method. The results of the semi-automated analysis procedure are remapped on a 3D model of the infrastructure obtained by means of a terrestrial laser scanning acquisition. <br><br> The proposed method has been successfully tested on a portion of a road bridge in Perarolo di Cadore (BL), Italy.


2020 ◽  
Vol 13 (2) ◽  
pp. 41-62
Author(s):  
Thomas Joseph White

The Chalcedonian confession of faith asserts that Christ is one person, the Son of God, subsisting in two natures, divine and human. The doctrine of the communication of idioms is essential to the life and practices of the Church insofar as we affirm there to be properties of deity and humanity present in the one subject, the Word made flesh. Such affirmations are made without a confusion of the two natures or their mutually distinct attributes. The affirmation that there is a divine and human nature in Christ is possible, however, only if it is also possible for human beings to think coherently about the divine nature, analogically, and human nature, univocally. Otherwise it is not feasible to receive understanding of the divine nature of Christ into the human intellect intrinsically and the revelation must remain wholly alien to natural human thought, even under the presumption that such understanding originates in grace. Likewise we can only think coherently of the eternal Son’s solidarity with us in human nature if we can conceive of a common human nature present in all human individuals. Consequently, it is only possible for the Church to confess some form of Chalcedonian doctrine if there is also a perennial metaphysical philosophy capable of thinking coherently about the divine and human natures from within the ambit of natural human reason. This also implies that the Church maintains a “metaphysical apostolate” in her public teaching, in her philosophical traditions, as well as in her scriptural and doctrinal enunciations.


2021 ◽  
Author(s):  
◽  
Brendan Vize

<p>Consider Lt. Commander Data from Star Trek: The Next Generation, the droid C3PO from Star Wars, or the Replicants that appear in Bladerunner: They can use language (or many languages), they are rational, they form relationships, they use language that suggests that they have a concept of self, and even language that suggests that they have “feelings” or emotional experience. In the films and TV shows that they appear, they are depicted as having frequent social interaction with human beings; but would we have any moral obligations to such a being if they really existed? What would we be permitted to do or not to do to them? On the one hand, a robot like Data has many of the attributes that we currently associate with a person. On the other hand, he has many of the attributes of the machines that we currently use as tools. He (and other science-fiction machines like him) closely resembles one of the things we value the most (a person), and at the same time, one of the things we value the least (an artefact), leading to an apparent ethical paradox. What is its solution?</p>


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