Search results for "Salient"
showing 10 items of 64 documents
Symmetry as an Intrinsically Dynamic Feature
2010
Symmetry is one of the most prominent spatial relations perceived by humans, and has a relevant role in attentive mechanisms regarding both visual and auditory systems. The aim of this paper is to establish symmetry, among the likes of motion, depth or range, as a dynamic feature in artificial vision. This is achieved in the first instance by assessing symmetry estimation by means of algorithms, putting emphasis on erosion and multi- resolution approaches, and confronting two ensuing problems: the isolation of objects from the context, and the pertinence (or lack thereof) of some salient points, such as the centre of mass. Next a geometric model is illustrated and detailed, and the problem …
Honeybees can recognise images of complex natural scenes for use as potential landmarks
2008
SUMMARY The ability to navigate long distances to find rewarding flowers and return home is a key factor in the survival of honeybees (Apis mellifera). To reliably perform this task, bees combine both odometric and landmark cues,which potentially creates a dilemma since environments rich in odometric cues might be poor in salient landmark cues, and vice versa. In the present study, honeybees were provided with differential conditioning to images of complex natural scenes, in order to determine if they could reliably learn to discriminate between very similar scenes, and to recognise a learnt scene from a novel distractor scene. Choices made by individual bees were modelled with signal detec…
El Teatro Principal de Valencia durante la temporada teatral 1875-1876
2021
El presente artículo revisa toda la actuación operística que hubo en Valencia durante la temporada de 1875 a 1876, la primera que coincide con la restauración de la monarquía de Alfonso XII. A través de la actividad que se produjo en el Teatro Principal de Valencia, examinamos toda la labor operística que hubo en esta ciudad, ya que fue el único lugar donde se representó ópera en Valencia. Una temporada marcada, sin duda alguna, por el estreno de la obra de Verdi, Aida. Un debut que fue posible gracias a la participación del tenor asturiano Lorenzo Abruñedo. Señalamos, asimismo, la importante presencia de la soprano Anna Romilda Pantaleoni, una de las cantantes más sobresalientes en aquel m…
Constructing the Moral Order of a Relationship in Couples Therapy
2016
Although couples therapy is rightly seen as one modality of the psychotherapies, many salient aspects of the process are not revealed by psychological theory. These have to do with how, in therapeutic conversations, the couple relationship is presented and performed as a social institution with a particular social and moral order. The moral order of a relationship includes more or less articulated and shared understandings of what is valued and what is not, what are the loyalties, duties, and responsibilities expected from the partners, and the grounds for evaluating actions. It also includes expectations concerning how value, concern, and respect are communicated. In this case study, based…
HSP60: A Story as Long as Life on the Earth
2019
In this Chapter, we briefly recount a few salient aspects of our personal experience and ideas about one of the most important anti-stress proteins in all cells, i.e., HSP60 (HSPD1 in humans). We outline the progression of HSP60 from gene to protein and its voyages inside and outside the cell, mentioning its various roles in health and disease. We correlate scientific data obtained by different experimental approaches to personal visions about the existence of life on Earth, its perpetuation, and the future of the human-species evolution. We believe that Science should not only be the application of technologies to find an answer to an unsolved question but also a source of philosophical co…
Measuring Child-Rearing Values. A Research Note
2012
Abstract Large scale comparative studies, such as the value surveys (EVS and WVS) or the Eurobarometer, include measurements for parental/child-rearing values. This reflects a persistent interest for the topic, which produced salient studies starting with the first half of the twentieth century (Lynd and Lund 1929; Duvall 1946). Various scholars report data on parental values which use versions of the Q-sort methodology (Kohn 1977), ranking variables (Alwin 1990; Lenski 1961), scale indicators (Tulviste et al. 2007). Q-sort methodology remains the most widely employed. One of its versions is included in the value surveys as well. However, it fails to produce comparable indicators in differe…
Heat production of frogs under normoxic and hypoxic conditions: A microcalorimetric study using a gas flow system
1991
Abstract Heat production of male frogs, Rana temporaria , was measured in a microcalorimeter through which a continuous flow of gas was passed in order to generate constant normoxic, hypoxic or anoxic conditions. The normoxic heat flow was 163 ± 37 μ W g body weight in frogs that had not been treated with curare and 149 ± 69 μ W g in animals immobilized with curare. During anoxia, frogs, whether curarized or not, decreased their heat production to about 25% of the respective normoxic control. In graded hypoxia (10% to 3% O 2 ), curarized frogs decreased their heat rate according to the grade of hypoxia they were subjected to.
Mesh Visual Quality based on the combination of convolutional neural networks
2019
Blind quality assessment is a challenging issue since the evaluation is done without access to the reference nor any information about the distortion. In this work, we propose an objective blind method for the visual quality assessment of 3D meshes. The method estimates the perceived visual quality using only information from the distorted mesh to feed pre-trained deep convolutional neural networks. The input data is prepared by rendering 2D views from the 3D mesh and the corresponding saliency map. The views are split into small patches of fixed size that are filtered using a saliency threshold. Only the salient patches are selected as input data. After that, three pre-trained deep convolu…
Directive local color transfer based on dynamic look-up table
2019
Abstract Color transfer in image processing usually suffers from misleading color mapping and loss of details. This paper presents a novel directive local color transfer method based on dynamic look-up table (D-DLT) to solve these problems in two steps. First, a directive mapping between the source and the reference image is established based on the salient detection and the color clusters to obtain directive color transfer intention. Then, dynamic look-up tables are created according to the color clusters to preserve the details, which can suppress pseudo contours and avoid detail loss. Subjective and objective assessments are presented to verify the feasibility and the availability of the…
Innovative modelling techniques in computer vision
1996
Abstract The paper is concerned with two of main research activities currently carried on at the Computer Science and Artificial Intelligence lab of DIE. The first part deals with hybrid artificial vision models, intended to provide object recognition and classification capabilities to an autonomous intelligen system. In this framework, a system recovering 3-D shape information from grey-level images of a scene, building a geometric representation of the scene in terms of superquadrics at the geometric level, and reasoning about the scene at the symbolic level is described. In the second part, attention is focused on automatic indexing of image databases. JACOB, a prototypal system allowing…