48 research outputs found
I Am Your Father
Star Wars is supposed to be a generic mythological story with archetypes and narrative structures that transcend all cultures, both in space and in time.
Posting about ÂÂÂÂÂÂÂÂthe influence of movies on our culture from In All Things - an online journal for critical reflection on faith, culture, art, and every ordinary-yet-graced square inch of God’s creation.
https://inallthings.org/i-am-your-father
Urban Constellating
Urban Constellating took place on 13 February 2015 in Leeds, West Yorkshire. It was one of a series of events hosted by the Media and Place research cluster at Leeds Beckett University. The text was written by Zoë Thompson and Lynne Hibberd. Thanks to everyone who took part
Visual Estimation of Fingertip Pressure on Diverse Surfaces using Easily Captured Data
People often use their hands to make contact with the world and apply
pressure. Machine perception of this important human activity could be widely
applied. Prior research has shown that deep models can estimate hand pressure
based on a single RGB image. Yet, evaluations have been limited to controlled
settings, since performance relies on training data with high-resolution
pressure measurements that are difficult to obtain. We present a novel approach
that enables diverse data to be captured with only an RGB camera and a
cooperative participant. Our key insight is that people can be prompted to
perform actions that correspond with categorical labels describing contact
pressure (contact labels), and that the resulting weakly labeled data can be
used to train models that perform well under varied conditions. We demonstrate
the effectiveness of our approach by training on a novel dataset with 51
participants making fingertip contact with instrumented and uninstrumented
objects. Our network, ContactLabelNet, dramatically outperforms prior work,
performs well under diverse conditions, and matched or exceeded the performance
of human annotators
Force-Aware Interface via Electromyography for Natural VR/AR Interaction
While tremendous advances in visual and auditory realism have been made for
virtual and augmented reality (VR/AR), introducing a plausible sense of
physicality into the virtual world remains challenging. Closing the gap between
real-world physicality and immersive virtual experience requires a closed
interaction loop: applying user-exerted physical forces to the virtual
environment and generating haptic sensations back to the users. However,
existing VR/AR solutions either completely ignore the force inputs from the
users or rely on obtrusive sensing devices that compromise user experience.
By identifying users' muscle activation patterns while engaging in VR/AR, we
design a learning-based neural interface for natural and intuitive force
inputs. Specifically, we show that lightweight electromyography sensors,
resting non-invasively on users' forearm skin, inform and establish a robust
understanding of their complex hand activities. Fuelled by a
neural-network-based model, our interface can decode finger-wise forces in
real-time with 3.3% mean error, and generalize to new users with little
calibration. Through an interactive psychophysical study, we show that human
perception of virtual objects' physical properties, such as stiffness, can be
significantly enhanced by our interface. We further demonstrate that our
interface enables ubiquitous control via finger tapping. Ultimately, we
envision our findings to push forward research towards more realistic
physicality in future VR/AR.Comment: ACM Transactions on Graphics (SIGGRAPH Asia 2022
Volume 38 - Issue 00 - Thursday, August 29, 2002
The Rose Thorn, Rose-Hulman\u27s independent student newspaper.https://scholar.rose-hulman.edu/rosethorn/1277/thumbnail.jp
CHORE: Contact, Human and Object REconstruction from a single RGB image
While most works in computer vision and learning have focused on perceiving
3D humans from single images in isolation, in this work we focus on capturing
3D humans interacting with objects. The problem is extremely challenging due to
heavy occlusions between human and object, diverse interaction types and depth
ambiguity. In this paper, we introduce CHORE, a novel method that learns to
jointly reconstruct human and object from a single image. CHORE takes
inspiration from recent advances in implicit surface learning and classical
model-based fitting. We compute a neural reconstruction of human and object
represented implicitly with two unsigned distance fields, and additionally
predict a correspondence field to a parametric body as well as an object pose
field. This allows us to robustly fit a parametric body model and a 3D object
template, while reasoning about interactions. Furthermore, prior pixel-aligned
implicit learning methods use synthetic data and make assumptions that are not
met in real data. We propose a simple yet effective depth-aware scaling that
allows more efficient shape learning on real data. Our experiments show that
our joint reconstruction learned with the proposed strategy significantly
outperforms the SOTA. Our code and models will be released to foster future
research in this direction.Comment: 19 pages, 7 figure