151 research outputs found
Joint Learning of Intrinsic Images and Semantic Segmentation
Semantic segmentation of outdoor scenes is problematic when there are
variations in imaging conditions. It is known that albedo (reflectance) is
invariant to all kinds of illumination effects. Thus, using reflectance images
for semantic segmentation task can be favorable. Additionally, not only
segmentation may benefit from reflectance, but also segmentation may be useful
for reflectance computation. Therefore, in this paper, the tasks of semantic
segmentation and intrinsic image decomposition are considered as a combined
process by exploring their mutual relationship in a joint fashion. To that end,
we propose a supervised end-to-end CNN architecture to jointly learn intrinsic
image decomposition and semantic segmentation. We analyze the gains of
addressing those two problems jointly. Moreover, new cascade CNN architectures
for intrinsic-for-segmentation and segmentation-for-intrinsic are proposed as
single tasks. Furthermore, a dataset of 35K synthetic images of natural
environments is created with corresponding albedo and shading (intrinsics), as
well as semantic labels (segmentation) assigned to each object/scene. The
experiments show that joint learning of intrinsic image decomposition and
semantic segmentation is beneficial for both tasks for natural scenes. Dataset
and models are available at: https://ivi.fnwi.uva.nl/cv/intrinsegComment: ECCV 201
Grown furniture: a move towards design for sustainability
This thesis deals with the proposal that environmentally benign items of free
standing furniture may be produced by the use of such well established techniques as
training and grafting natural tree growth to shape. The project has been driven by the
growing environmental concerns of which mankind has become aware in the late
twentieth century, and which are starting to exert such a powerful influence in the
twenty first.
A broad history of man's use and control of natural tree growth, ranging
geographically from Europe to Australia, and in size from hand held agricultural picks to
eighteenth century sailing ships, is followed by a brief description of the ways in which the
explosive increase in world popuanon. together with the expanding industrial activities of
the Western consumer society, are feared to be threatening the stability of the natural
environment. The various disasters and catastrophic accidents which have brought this
situation to the attention of the general public are briefly surveyed, together with National,
International and a range of Industrial responses. As one of the professions most closely
concerned with the production of consumer items, the various reactions of the Design
Community are similarly examined.
In conclusion, the author's proposal for an experimental item of furnitureenvironmentally
benign in production, use and disposal - is described and illustrated. A
simple free standing three legged stool, the form of both the item itself and that of the jig
required to control it's growth, are described and illustrated. The growth of examples of
this, carried out on three sites across southern Britain are documented, experimental results
reported and discussed. A further range of designs suitable to be produced using this
method of controlling and grafting natural growth is proposed, and suggestions made for
further experimentation
Modélisation de vignes à partir d'une séquence d'images
National audienceCet article présente des travaux sur la modélisation de plantes à géométries fortement contraintes à partir d'images. A partir de séquences d'images acquises dans un vignoble, nous instancions un modèle paramétré des parcelles, des rangs, et des pieds de vignes. Le modèle est déduit des connaissances a priori ; à partir des images, des paramètres sont extraits. Ces paramètres sont ensuite fournis au modèle qui génère une représentation de la plante, du rang ou de la parcelle filmée
The Factual Inconsistency Problem in Abstractive Text Summarization: A Survey
Recently, various neural encoder-decoder models pioneered by Seq2Seq
framework have been proposed to achieve the goal of generating more abstractive
summaries by learning to map input text to output text. At a high level, such
neural models can freely generate summaries without any constraint on the words
or phrases used. Moreover, their format is closer to human-edited summaries and
output is more readable and fluent. However, the neural model's abstraction
ability is a double-edged sword. A commonly observed problem with the generated
summaries is the distortion or fabrication of factual information in the
article. This inconsistency between the original text and the summary has
caused various concerns over its applicability, and the previous evaluation
methods of text summarization are not suitable for this issue. In response to
the above problems, the current research direction is predominantly divided
into two categories, one is to design fact-aware evaluation metrics to select
outputs without factual inconsistency errors, and the other is to develop new
summarization systems towards factual consistency. In this survey, we focus on
presenting a comprehensive review of these fact-specific evaluation methods and
text summarization models.Comment: 9 pages, 5 figure
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