| 1. |
- Bajones, Markus, et al.
(författare)
-
Hobbit : Providing Fall Detection and Prevention for the Elderly in the Real World
- 2018
-
Ingår i: Journal of Robotics. - : Hindawi Limited. - 1687-9600 .- 1687-9619. ; 2018, s. 1-20
-
Tidskriftsartikel (refereegranskat)abstract
- We present the robot developed within the Hobbit project, a socially assistive service robot aiming at the challenge of enabling prolonged independent living of elderly people in their own homes. We present the second prototype (Hobbit PT2) in terms of hardware and functionality improvements following first user studies. Our main contribution lies within the description of all components developed within the Hobbit project, leading to autonomous operation of 371 days during field trials in Austria, Greece, and Sweden. In these field trials, we studied how 18 elderly users (aged 75 years and older) lived with the autonomously interacting service robot over multiple weeks. To the best of our knowledge, this is the first time a multifunctional, low-cost service robot equipped with a manipulator was studied and evaluated for several weeks under real-world conditions. We show that Hobbit’s adaptive approach towards the user increasingly eased the interaction between the users and Hobbit. We provide lessons learned regarding the need for adaptive behavior coordination, support during emergency situations, and clear communication of robotic actions and their consequences for fellow researchers who are developing an autonomous, low-cost service robot designed to interact with their users in domestic contexts. Our trials show the necessity to move out into actual user homes, as only there can we encounter issues such as misinterpretation of actions during unscripted human-robot interaction.
|
|
| 2. |
- Bajones, Markus, et al.
(författare)
-
Results of Field Trials with a Mobile Service Robot for Older Adults in 16 Private Households
- 2019
-
Ingår i: ACM Transactions on Human-Robot Interaction. - : Association for Computing Machinery (ACM). - 2573-9522. ; 9:2, s. 10:1-10:27
-
Tidskriftsartikel (refereegranskat)abstract
- In this article, we present results obtained from field trials with the Hobbit robotic platform, an assistive, social service robot aiming at enabling prolonged independent living of older adults in their own homes. Our main contribution lies within the detailed results on perceived safety, usability, and acceptance from field trials with autonomous robots in real homes of older users. In these field trials, we studied how 16 older adults (75 plus) lived with autonomously interacting service robots over multiple weeks. Robots have been employed for periods of months previously in home environments for older people, and some have been tested with manipulation abilities, but this is the first time a study has tested a robot in private homes that provided the combination of manipulation abilities, autonomous navigation, and nonscheduled interaction for an extended period of time. This article aims to explore how older adults interact with such a robot in their private homes. Our results show that all users interacted with Hobbit daily, rated most functions as well working, and reported that they believe that Hobbit will be part of future elderly care. We show that Hobbit's adaptive behavior approach towards the user increasingly eased the interaction between the users and the robot. Our trials reveal the necessity to move into actual users' homes, as only there, we encounter real-world challenges and demonstrate issues such as misinterpretation of actions during non-scripted human-robot interaction.
|
|
| 3. |
- Logothetis, Michalis, et al.
(författare)
-
Efficient Cooperation of Heterogeneous Robotic Agents
- 2021
-
Ingår i: IEEE robotics & automation magazine. - : Institute of Electrical and Electronics Engineers (IEEE). - 1070-9932 .- 1558-223X. ; 28:2, s. 74-87
-
Tidskriftsartikel (refereegranskat)
|
|
| 4. |
|
|
| 5. |
- Nillius, Peter, et al.
(författare)
-
Shading models for illumination and reflectance invariant shape detectors
- 2008
-
Ingår i: 2008 IEEE Conference On Computer Vision And Pattern Recognition. - 9781424422425 ; , s. 3353-3360
-
Konferensbidrag (refereegranskat)abstract
- Many objects have smooth surfaces of a fairly uniform color, thereby exhibiting shading patterns that reveal information about its shape, an important clue to the nature of the object. This papers explores extracting this information from images, by creating shape detectors based on shading. Recent work has derived low-dimensional models of shading that can handle realistic unknown lighting conditions and surface reflectance properties. We extend this theory by also incorporating variations in the surface shape. In doing so it enables the creation of very general models for the 2D appearance of objects, not only coping with variations in illumination and BRDF but also in shape alterations such as small scale and pose changes. Using this framework we propose a scheme to build shading models that can be used for shape detection in a bottom up fashion without any a priori knowledge about the scene. From the developed theory we construct detectors for two basic shape primitives, spheres and cylinders. Their performance is evaluated by extensive synthetic experiments as well as experiments on real images.
|
|
| 6. |
- Panagiotakis, Costas, et al.
(författare)
-
Beat synchronous dance animation based on visual analysis of human motion and audio analysis of music tempo
- 2013
-
Ingår i: Advances in Visual Computing. - Berlin, Heidelberg : Springer Berlin/Heidelberg. - 9783642419386 ; , s. 118-127
-
Konferensbidrag (refereegranskat)abstract
- We present a framework that generates beat synchronous dance animation based on the analysis of both visual and audio data. First, the articulated motion of a dancer is captured based on markerless visual observations obtained by a multicamera system. We propose and employ a new method for the temporal segmentation of such motion data into the periods of dance. Next, we use a beat tracking algorithm to estimate the pulse related to the tempo of a piece of music. Given an input music that is of the same genre as the one corresponding to the visually observed dance, we automatically produce a beat synchronous dance animation of a virtual character. The proposed approach has been validated with extensive experiments performed on a data set containing a variety on traditional Greek/Cretan dances and the corresponding music.
|
|
| 7. |
- Romero, Javier, et al.
(författare)
-
Dynamic Time Warping for binocular hand tracking and reconstruction
- 2008
-
Ingår i: 2008 IEEE International Conference On Robotics And Automation. - 9781424416462 ; , s. 2289-2294
-
Konferensbidrag (refereegranskat)abstract
- We show how matching and reconstruction of contour points can be performed using Dynamic Time Warping (DTW) for the purpose of 3D hand contour tracking. We evaluate the performance of the proposed algorithm in object manipulation activities and perform comparison with the Iterative Closest Point (ICP) method.
|
|
