Search results for "artificial intelligence"
showing 10 items of 6122 documents
A refined range image registration technique for multi-stripe laser scanner
2006
Nowadays, visual inspection is very important in the quality control for many industrial applications. However, the complexity of most 3D objects constrains the registration of range images; a complete surface is required to compare the acquired surface to the model. Range finders are very used to digitalize free form shape objects with large resolutions. Moreover, one single view is not enough to reconstruct the whole surface due to occlusions, shadows, etc. In these situations, the motion between reconstructed partial views are required to integrate all surfaces in a single model. However, the use of positioning systems is not always available or adequate due mainly to the size of the obj…
Multiscale analysis of range image: its use for growth increment characterization
1999
A new image-processing approach for object analysis in life and earth sciences is presented. This approach is based on a multireso- lution algorithm in image processing. A clamshell surface has been digi- tized using a noncontact optical sensor based on laser triangulation. The 3-D surface obtained constitutes an image that can be characterized by multiresolution analysis. The application of this method to the study of a bivalve shell surface (Unio sp., Recent Atlantic, Holocene) allowed the various growth increments and their potential relationship with environ- mental constraints to be measured. The algorithm used in this paper is based on the wavelet transform theory. © 1999 Society of P…
Entire reflective object surface structure understanding based on reflection motion estimation
2015
An sub-segmentation method for the reflective surface structure understanding.The use of reflection motion features as spatiotemporal coherence for video segmentation.Straightforward implementation.A building block for object recognition. The presence of reflection on a surface has been a long-standing problem for object recognition since it brings negative effects on object's color, texture and structural information. Because of that, it is not a trivial task to recognize the surface structure affected by the reflection, especially when the object is entirely reflective. Most of the cases, reflection is considered as noise. In this paper, we propose a novel method for entire reflective obj…
Measuring Muscle Fatigue in Relation to the Workload of Health Care Workers
2015
Abstract Number of work related musculoskeletal disorders due to ergonomics risks among workers in Europe, including Latvia, is growing. Employees in health care professions admit physical load and discomfort in various body parts after the shift. According to Eurostat statistical data 60% of total work related diseases are attributed to musculoskeletal disorders in Latvia. The aim of this study was to determine the muscle fatigue caused by physical load for surgeons, anaesthetists and geneticists in one of the largest Hospitals in Latvia. The research involved 9 surgeons, 9 anaesthetists and 7 geneticists with chronic pain (for four months or more) in the neck, shoulders, arms, hands and l…
Special Issue on “Recent Developments on Modeling and Control of Hybrid Electric Vehicles”
2016
Environmental pollution and energy shortages are not only the two major problems currently in the sustainable development of the automotive industry, but also the two major bottlenecks in the global automotive industry. Facing the enormous requirement of energy-saving and environment protection, the development of new energy vehicles have become an important measure to solve this problem. Recently, hybrid electric vehicles (HEVs) or electric vehicles (EVs) have become a hot topic from both theoretical and practical perspectives. Among various types of electric vehicles, hybrid electric vehicles (HEVs) — or as they are commonly dubbed “hybrid vehicles” — offer the distinct advantages of ener…
Robotics and automation for societal good : global South challenges and technology-policy considerations
2018
Robotics and automation and artificial intelligence technologies hold immense potential in addressing many of the societal challenges as exemplified in the sustainable development goals of the 2030 agenda of the United Nations. They have the potential not only to increase the standard of living in developed countries, but to improve the quality of life in the so-called «Global South». This article discusses underlying challenges and technology-policy considerations when deploying emerging technologies in developing and developed economies. Various examples and implementations in collaboration with humanitarians, researchers and developers, and professional organizations across the globe are…
The Sound of Swarm. Auditory Description of Swarm Robotic Movements
2023
Movements of robots in a swarm can be mapped to sounds, highlighting the group behavior through the coordinated and simultaneous variations of musical parameters across time. The vice versa is also possible: sound parameters can be mapped to robotic motion parameters, giving instructions through sound. In this article, we first develop a theoretical framework to relate musical parameters such as pitch, timbre, loudness, and articulation (for each time) with robotic parameters such as position, identity, motor status, and sensor status. We propose a definition of musical spaces as Hilbert spaces, and musical paths between parameters as elements of bigroupoids, generalizing existing conceptio…
The alignment of head nods with syntactic units in Finnish Sign Language and Swedish Sign Language
2016
In this paper we examine the relationship between specific head movement events – head nods, often treated as prosodic boundary markers – and syntactic units in Finnish (FinSL) and Swedish Sign Language (SSL). In the study we investigated the alignment of head nods with syntactic units on the basis of a total of 20 (10+10) FinSL and SSL narratives. The results of the study show that in both languages head nods appeared similarly on syntactic boundaries and that the tendency was to align nods sentence-finally. However, not all head nods behaved this way: for example, a relatively large number of head nods were also found to occur sentence-initially or elsewhere in the sentence. Furthermore, …
On the rhythm of head movements in Finnish and Swedish Sign Language sentences
2016
This paper investigates, with the help of computer-vision technology, the similarities and differences in the rhythm of the movements of the head in sentences in Finnish (FinSL) and Swedish Sign Language (SSL). The results show that the movement of the head in the two languages is often very similar: in both languages, the instances when the movement of the head changes direction were distributed similarly with regard to clause-boundaries, and the contours of the roll (tilting-like) motion of the head during the sentences were similar. Concerning differences, direction changes were found to be used more effectively in the marking of clause-boundaries in FinSL, and in SSL the head moved near…
IA neuro-symbolique pour l'interprétation granulaire des données des bases STUPS© et OTARIES© : défis applicatifs et perspectives
2023
Historiquement, l'intelligence artificielle (IA) s'est divisée en 2 courants selon les hypothèses faites pour modéliser l'intelligence humaine : l'IA symbolique, supposant que des symboles sont nécessaires, et l'IA statistique (plus particulièrement l'IA connexionniste) affirmant le contraire. Dernièrement, l'IA neuro-symbolique tente de réconcilier les 2. Les travaux présentés dans cet article sont en en collaboration avec la Police Scientifique française, dans le contexte du Plan National Stup. Nous présentons les problématiques métiers en lien avec le projet, puis en déduisons les problématiques scientifiques. Après un rappel des domaines de l'IA et leurs limites, nous présentons un état…