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Augmenting video conference with additional visual cues has been studied to improve remote collaboration. A common setup is a person wearing a head-mounted display (HMD) and camera sharing her view of the workspace with a remote collaborator and getting assistance on a real-world task. While this configuration has been extensively studied, there has been little research on how sharing gaze cues might...
A student squinting to see the board or holding a textbook inches from his or her nose often provides the first indication of a visual impairment. For most, the cause is a refractive error, readily correctible with eyeglasses. However, for an estimated 40-65 million people globally with functional low vision, the fuzzy words pose a lifelong challenge.
Eyes are organs of our visual system. In this paper, we are presenting a unique intelligent electronic eye that provides road guidance to blind people while they are walking. Surrounding visual data is collected by image and obstacle sensors mounted on a helmet which the user has to put in. The data is sent to a processor which works in a line similar to our brain function. The processor analyses...
This paper aims to study the process of converting the depth information of a real scene captured in a real environment into a tactile representation through a haptic device. We developed a belt-shaped interface with a matrix of 35 (7x5) vibrotactile actuators attached to the users' abdomen. Tests demonstrated that the device can help users to perceive the movement of objects and people, as well as...
Low-cost mini-drones with advanced sensing and maneuverability enable a new class of intelligent visual sensing systems. This potential motivated several research efforts to employ drones as standalone surveillance systems or to assist legacy deployments. However, several fundamental challenges remain unsolved including: 1) Adequate coverage of sizable targets; 2) Target orientation that render coverage...
This paper describes the development of an immersive VR application that lets visual artists quickly visualize and prototype their pictorial design ideas in virtual environments. First, the design requirements are outlined and then the implementation of the application prototype in Unreal Engine 4 is explained. We perform preliminary user tests and discuss the feedback, as well as further improvements...
We anticipate advancements in mixed reality device technology which might benefit driver-car interaction scenarios and present a simulated diminished reality interface for car drivers. It runs in a custom driving simulation and allows drivers to perceive otherwise occluded objects of the environment through the car body. We expect to obtain insights that will be relevant to future real-world applications...
This article presents a large scale and long duration experiment as part of the French FUI VipaFleet project. A driverless shuttle has been operated for three month on an industrial site, totaling nearly 1500 km of autonomous travel and 300 passengers transported. The localization relies mainly on a multi camera system and a visual SLAM algorithm. Besides the vision algorithms themselves, this article...
In this paper we introduce CoBoard1 Flowers, an audio-visual public installation for Prague Spring International Music Festival. An interactive visualization with floral motifs is shown and is controlled by a face detection technology, enabled by a computer vision algorithm. The visualization is controlled by the estimated position, distance, gender, and age of the participants. The visualization...
Hand-held transparent displays are important infrastructure for augmented reality applications. Truly transparent displays are not yet feasible in hand-held form, and a promising alternative is to simulate transparency by displaying the image the user would see if the display were not there. Previous simulated transparent displays have important limitations, such as being tethered to auxiliary workstations,...
In this poster, we introduce the notion of using LCD panels for controlling the level of immersion provided by head-mounted displays (HMDs). We propose replacing the cowling around typical “ski-goggle” type HMDs with LCD panels of the type used in commodity active-stereo glasses used in movie theaters. The panels can be controlled using very simple stand-alone circuitry and/or a micro-controller to...
We present a novel system to help visually impaired people to move efficiently and safely in indoor environments by mapping input from a depth camera to spatially localized auditory cues. We propose a set of context-specific cues which are suitable for use in systems that provide minimal audio feedback and hence reduce masking of natural sounds compared to the audio provided by general-purpose sense...
This paper intends to solve palm fruit grading using the proposed prototype and Palm fruit ripeness Unified Modeling Language diagrams. In this paper the issues of correct harvesting prediction, categorizing palm fruits and distinguishing Ripe and Overripe fruit is solved suing Unified Modeling Language (UML) diagrams. UML diagrams designed and shown in the paper helped to model and implement the...
While the 3D graphics technique has found its place for the scientific visualization, especially for medical and biological applications, it has long been speculated that the 3D may not be so much effective as far as the conventional information visualization is concerned. We agree upon this view that the naive extension of the 2D visual forms to 3D is not a way to go. Instead, the computergenerated...
In order to help people suffering from autism spectrum disorder (ASD), assistance systems have been developed with a focus on enabling ASD people to adapt to activities of daily living (e.g., augmentative and alternative communication systems [1]). However, if we reverse our viewpoint, we can develop a new concept for the assistance system: letting normal developed (ND) people experience the perceptual...
Visual markers are useful tools assisting visual recognition of object pose in robotic applications. But they have two fundamental problems in orientation estimation. One is degradation of orientation accuracy in frontal observation. The other is “pose ambiguity” that the orientation cannot be determined uniquely. We previously developed a novel visual marker “LentiMark” which solves the former problem...
Augmented Reality (AR) enhances real-world view with additional virtual information. This technique can be applied to a variety of industrial applications. It can be used to localize equipment in an industrial plant, to identify a dedicated device or to show its configuration. In addition, AR can be used in remote service situations, where remote experts are guiding local field workers in maintenance...
Person re-identification from disjoint camera views has been an important and unsolved problem due to large variations in illumination, viewpoint and pose. One way to attack this is by designing a new, more powerful image representation. However, we believe that existing representations are already sufficient. The main difficulty is how to pick the most informative information using these representations...
The Internet-based tele-operative surgical training system for Vascular Interventional Surgery (VIS) is a promising method to protect surgeons from long time exposure to radiation and to do the surgery cooperatively across the whole world and to allow unskilled surgeons to learn basic catheter or guidewire skills corresponding to inter-country distances. However, unpredictable and variable transmission...
Multi-projector systems for VR applications require complex infrastructure composed of several projectors and computers. Management of this complex structure is a challenge and requires expert personnel to keep it operational. In this paper we propose a flexible, mobile, off-the-shelf computing platform, targeted at the development of multi-projector displays algorithms. The goal is to achieve a fast...
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