29,308 research outputs found
Learning a Disentangled Embedding for Monocular 3D Shape Retrieval and Pose Estimation
We propose a novel approach to jointly perform 3D shape retrieval and pose
estimation from monocular images.In order to make the method robust to
real-world image variations, e.g. complex textures and backgrounds, we learn an
embedding space from 3D data that only includes the relevant information,
namely the shape and pose. Our approach explicitly disentangles a shape vector
and a pose vector, which alleviates both pose bias for 3D shape retrieval and
categorical bias for pose estimation. We then train a CNN to map the images to
this embedding space, and then retrieve the closest 3D shape from the database
and estimate the 6D pose of the object. Our method achieves 10.3 median error
for pose estimation and 0.592 top-1-accuracy for category agnostic 3D object
retrieval on the Pascal3D+ dataset, outperforming the previous state-of-the-art
methods on both tasks
The Teaching of Vocabulary through the Multisensory Approach to EFL Third Age Adults in a Public Nursing Home in Pereira, Colombia
El aprendizaje del idioma inglĂ©s es un proceso que conlleva beneficios cognitivos, personales, sociales y de crecimiento. Esta investigaciĂłn cualitativa tuvo como objetivo integrar a una poblaciĂłn de adultos mayores en lecciones de vocabulario en inglĂ©s basadas en los principios de la teorĂa de la andragogĂa
Which senses dominate at different stages of product experience?
In the area of product design, sensory dominance can be defined as the relative importance of different sensory modalities for product experience. Since product experience is multisensory, it is interesting to know which sensory modality plays a leading role in a particular experience, so that designers could concentrate on the creation of the most relevant product properties. It is often assumed that vision dominates other senses. In the present study, we investigated the importance of different sensory modalities during various episodes of product usage. We asked 120 respondents to describe their experiences with consumer products in the following situations: while buying a product, after the first week, the first month, and the first year of usage. The data suggest that the dominant modality depends on the period of product usage. At the moment of buying, vision is the most important modality, but at later stages other modalities become more important. The dominance of a particular modality may depend on its appropriateness for the particular task. During long-term usage, modality importance depends on product functions and the characteristics of the user-product interaction. We conclude that to create a long-lasting positive product experience, designers need to consider the user-product interaction at different stages of product usage and to determine which sensory modality dominates product experience at each stage.
Keywords:
Sensory Dominance; User-Product Interaction; Product Design</p
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Sensory Compensation in Children Following Vision Loss after Trauma and Disease
Sensory compensation or sensory substitution occurs when a sense organ, such as the eye, is lost due to trauma or disease. Individuals often experience phantom limb sensation or pain but research increasingly points towards some individuals developing a heightened level of functioning in their remaining senses, particularly in their remaining intact eye. Losing an eye at an early age can often result in “super functioning” in the remaining eye providing that no similar trauma or disease results. Cases include young children who have undergone enucleation because of diagnosed unilateral retinoblastoma and whose remaining eye is free from disease
Lights, Camera, Action! Exploring Effects of Visual Distractions on Completion of Security Tasks
Human errors in performing security-critical tasks are typically blamed on
the complexity of those tasks. However, such errors can also occur because of
(possibly unexpected) sensory distractions. A sensory distraction that produces
negative effects can be abused by the adversary that controls the environment.
Meanwhile, a distraction with positive effects can be artificially introduced
to improve user performance.
The goal of this work is to explore the effects of visual stimuli on the
performance of security-critical tasks. To this end, we experimented with a
large number of subjects who were exposed to a range of unexpected visual
stimuli while attempting to perform Bluetooth Pairing. Our results clearly
demonstrate substantially increased task completion times and markedly lower
task success rates. These negative effects are noteworthy, especially, when
contrasted with prior results on audio distractions which had positive effects
on performance of similar tasks. Experiments were conducted in a novel (fully
automated and completely unattended) experimental environment. This yielded
more uniform experiments, better scalability and significantly lower financial
and logistical burdens. We discuss this experience, including benefits and
limitations of the unattended automated experiment paradigm
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