Haptic Technology

The paper reviews the existing and state-of-the-art computer-aided technologies and computational techniques, which can be applied to jewelry design and casting. A broad array of techniques are selected and ordered into three key parts: design; model-making; and casting, that outline the core of computer-aided jewelry design and casting. Computer-aided design and haptic technologies are surveyed in the purposes of supporting the design of jewelry and shape modeling. Rapid prototyping and computer numerical controlled machines are reviewed in the functions of fabricating physical jewelry models and developing the direct tools. Computer-aided engineering technologies are investigated in the rationales of simulating lost-wax casting process and optimizing process parameters. Artificial intelligence techniques are reviewed in intentions of developing algorithmic designs, and assisting hard computations and parameter optimizations in designing and casting. With those computer advanced technologies, major challenges and solutions are systematically discussed and commented to address new developments for jewelry industry.

The article is a group effort consisting of an introduction and seven compact essays. It is focused on the problem of color from the perspective of current philosophical discussions on the role of the Enlightenment and the relationship between light and dark. The introduction by Michael Kurtov presents a roadmap for navigating through the seven essays by referring to a schema of “color knowledge” which has four dimensions: luminosity, resolution, saturation, and hue. Each of the texts in the article (the introduction and seven essays) deals mostly with one of “color knowledge”, which are formed by combining three color dimensions. Roman Mikhailov explores the plastic-dynamic correlates of colors and the chromaticity of the text understood broadly both as the text of nature and as an abstract symbolic complex. Eugene Kuchinov offers a “haptic criticism of the Enlightenment,” which is an analysis of color phenomena from the point of view of the skin (not the eye): on the basis of the logic of sensation, color is “viewed” beyond the light, beyond the optics. Yoel Regev develops a hermeneutics of color applied to the Torah: color is interpreted as a deception which is opposed to another deception belonging to a “true enlightenment.” Michael Kurtov addresses a revision of Goethe’s theory of color based on new physical experiments and on the logical geometry of color and then arrives at a critique of contemporary chromo-ideology. Nataliya Tyshkevich reveals the modern political meaning of coloring in the context of the recent “renaissance of modernist aesthetics” in which dealing with form is replaced by dealing with surfaces. Gray Violet describes color and darkness as political functions that turn into each other in the middle of a non-place in the “smart city.” The final piece by Nikita Sazonov elaborates the procedure of colorization by examining noncolor — a resource beyond the colored and the uncolored, most readily manifested in the printed character as well as in modern hip-hop culture
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Статья представляет собой коллективный текст, состоящий из введения и семи фрагментов. В центре статьи — проблема цвета, рассмотренная сквозь призму актуальных философских дискуссий о роли Просвещения и отношениях «светлого» и «темного». Во введении Михаила Куртова предлагается общая карта движения по семи фрагментам — модель «цветного знания», имеющая четыре измерения: светлота, разрешение, насыщенность, цветовой тон. Каждый из включенных в статью текстов (введение и семь фрагментов) условно отнесен к одному из восьми возможных типов «цветного знания». Фрагмент Романа Михайлова исследует пластически-динамические корреляты цветов и говорит о цветности текста, понимаемого максимального широко: и как текста природы, и как абстрактного символического комплекса. Фрагмент Евгения Кучинова посвящен «гаптической критике Просвещения» — анализу цвета с точки зрения «кожи», располагающемуся на границе оптического как такового и получающему свой смысл в интенсивном, аффективно-динамическом знании. Фрагмент Йоэля Регева разворачивает герменевтику цвета на материале Торы: цвет истолковывается как обман, которому противостоит другой обман, принадлежащий «подлинному просвещению». Фрагмент Михаила Куртова обращается к пересмотру теории цвета Гёте на базе новых физических экспериментов и с учетом развития логической геометрии цвета, намечая тем самым критику современной хромоидеологии. Фрагмент Натальи Тышкевич раскрывает современный политический смысл раскрашивания в контексте «ренессанса модернистской эстетики» последних лет, в которой работа с формой замещается работой поверхностями. Фрагмент Серого Фиолетового описывает цвет и тьму как политические функции, обращающиеся друг в друга посреди единого не-места «умного города». Заключительный фрагмент Никиты Сазонова разрабатывает процедуру расцвечивания через обращение к нецвету — ресурсу по ту сторону цвета и не-цвета, наиболее отчетливо проявляющемуся в печатном знаке, а также в современной хип-хоп культуре

This paper outlines the development of a wearable game controller incorporating vibrotacticle haptic feedback that provides a low cost, versatile and intuitive interface for controlling digital games. The device differs from many traditional haptic feedback implementation in that it combines vibrotactile based haptic feedback with gesture based input, thus becoming a two way conduit between the user and the virtual
environment. The device is intended to challenge what is considered an “interface” and draws on work in the area of Actor-Network theory to purposefully blur the boundary between man and machine. This allows for a more immersive experience, so rather than making the user feel like they are controlling an aircraft the intuitive interface allows the user to become the aircraft that is controlled by the movements of the user's hand. This device invites playful action and thrill. It bridges new territory on portable and low cost
solutions for haptic controllers in a gaming context.

Our IMSC team has used haptics to allow museum visitors to explore three-dimensional works of art by ���touching��� them, something that is not possible in ordinary museums due to prevailing ���hands-off��� policies [1, 2]. Haptics involves the modality of touch--the sensation of shape and texture an observer feels when exploring a virtual object, such as a three-dimensional model of a piece of pottery or art glass [3, 4, 5]. The haptic devices used in our research are the Phantom [6] and the CyberGrasp [7]. The Phantom is a desktop device ...

This paper is about design of an efficient Game focusing more on combination of Technologies. The purpose of this is to integrate various technologies and develop 3D Game which will enhance game capabilities in Gaming World by providing good look and feel. The paper deals with development of simple firing game and user need to shoot the enemy seen on projector screen, technologies involved Sixth Sense, Haptic Technology, Pattern matching and Artificial Intelligence makes a plus point in interaction between game and user. To develop 3D Game application that provides you to play and interact with computer using various technologies. Developing such Game in a custom built environment and user with Jacket, Gun with proper touch less interface increases rigidness of game.

This paper discusses some findings of tactile-kinaesthetic experiences and haptic illusions within the context of the EGM virtual sonic environment. The EGM interface combines motion capture and sound processed software with movement improvisation. In improvising in this virtual sonic environment, dancers generate sounds through their movements simultaneously hearing a sound as a trace of their motion. Applying Maurice MerleauPonty’s phenomenology and his notion of motor intentionality, the paper discusses the expressivity of dancers’ movement. The paper describes how, using certain methods of contemporary dance, physical action induces kinaesthetic imagination that becomes visible to the audience. Examples of improvisation sessions are presented that illustrate ways in which artists, working with digital technology, make use of sonic-kinesthetic experience to inform visual expression. The paper suggests that dancers’ kinesthetic-visual-sonic i.e. multimodal expression feeds both artists’ and the audience’s imagination. Findings from this research are presented that reveal the importance of kinesthetic intelligence and bodily interaction with virtual environments when developing new movement-based interfaces.

Haptic Modeling of textile has attracted significant interest over the last decade. In spite of extensive research, no generic system has been proposed. The previous work mainly assumes that textile has a 2D planar structure. They also require time-consuming measurement of textile properties in construction of the mechanical model. A novel approach for haptic modeling of textile is proposed to overcome the existing shortcomings. The method is generic, assumes a 3D structure for the textile, and deploys computational intelligence to estimate the mechanical properties of textile. The approach is designed primarily for display of textile artifacts in museums. The haptic model is constructed by superimposing the mechanical model of textile over its geometrical model. Digital image processing is applied to the still image of textile to identify its pattern and structure through a fuzzy rule-base algorithm. The 3D geometric model of the artifact is automatically generated in VRML based on the identified pattern and structure obtained from the textile image. Selected mechanical properties of the textile are estimated by an artificial neural network; deploying the textile geometric characteristics and yarn properties as inputs. The estimated mechanical properties are then deployed in the construction of the textile mechanical model. The proposed system is introduced and the developed algorithms are described. The validation of method indicates the feasibility of the approach and its superiority to other haptic modeling algorithms.

This paper discusses the effects of virtual reality immersion in the functional recovery of neurological patients. To do so, we conducted a review of the literature after identifying relevant articles published between 2000 and 2013. The results of this review show that high levels of immersion can cause a greater sensation of presence, which can make some applications more effective. The most important level is the realistic experience that immersive VR prompts the user to have. By requiring to have a high level of sensory, visual, auditory and haptic fidelity, the immersive virtual environment enables the experience in the virtual world to correspond, as far as possible, to experiencing the real world being simulated.

The human senses play an important role in people's understanding and experience of products. The overall aim of this explorative study was to further investigate users' haptic product experiences in respect of how they are verbalised and how they ...

Here we question the mechanisms underlying the emergence of the feeling of control that can be modulated even when the feeling of being the author of one's own action is intact. With a haptic robot, participants made series of vertical pointing actions on a virtual surface, which was sometimes postponed by a small temporal delay (15 or 65ms). Subjects then evaluated their subjective feeling of control. Results showed that after temporal distortions, the hand-trajectories were adapted effectively but that the feeling of control decreased significantly. This was observed even in the case of subliminal distortions for which subjects did not consciously detect the presence of a distortion. Our findings suggest that both supraliminal and subliminal temporal distortions that occur within a healthy perceptual-motor system impact the conscious experience of the feeling of control of self-initiated motor actions.

Certain telerobotic applications, including telerobotics in space, pose particularly demanding challenges to both technology and humans. Traditional bilateral telemanipulation approaches often cannot be used in such applications due to technical and physical limitations such as long and varying delays, packet loss, and limited bandwidth, as well as high reliability, precision, and task duration requirements. In order to close this gap, we research model-augmented haptic telemanipulation (MATM) that uses two kinds of models: a remote model that enables shared autonomous functionality of the teleoperated robot, and a local model that aims to generate assistive augmented haptic feedback for the human operator. Several technological methods that form the backbone of the MATM approach have already been successfully demonstrated in accomplished telerobotic space missions. On this basis, we have applied our approach in more recent research to applications in the fields of orbital robotics,...

This work focuses on ergonomics skills based on Virtual Reality (VR) training simulator for spine surgery. The proposed system used the Head Mounted Display (HMD) device for monitoring and data collection. The aim of the project was to provide a training approach for residents that would enable them to acquire the proper ergonomic skills needed while performing spine surgery. A VR training simulator has been designed and implemented to measure two ergonomic skills required that need to be maintained during any surgery. The two components were neck’s angle and table’s height. The experiments showed that the users are usually focused on their work and tend to pay less attention to their body’s position and movements. This can result in a wrong ergonomics setup, which leads to musculoskeletal pain. Thus, the users (residents) need to be trained to have good ergonomics positions. The proposed system measured this using a specific metric that collected head positions, angles, elbow heigh...

In this paper I define and characterize what I call structural and empirical approaches to technology, and defend the thesis that philosophers of technology should avoid and repair every gap that threatens to leave both approaches “incommunicado”. I argue that such efforts are needed, for instance, in the integration of philosophical accounts with those of the social sciences. In order to make manifest the advantages and problems of each view, I analyze the technology of Mediated Touch together with some of its recent applications. From the analysis of mediated touch, I collect some reflections that later I use to question how Heidegger Ian theories (structural) or mediation theory (empirical) could plausibly deal with this technology. After highlighting the strengths and difficulties of both Heidegger’s philosophy and mediation theory, I conclude with some reflections that summarize and discuss the findings of the paper.

We examined the nature of interpersonal synchrony mediated by light touch when individuals rhythmically sway side by side at their own pace, same or different externally imposed tempos. Three types of couples participated in two experiments; dancer couples, non dancer couples, and mixed couples. Spectral analysis of the sway signals revealed that fingertip touch evoked interpersonal synchronization during self-paced sway. During metronome paced sway only dancers further increased synchronization suggesting a more efficient integration of tactile and timing cues. In a subsequent experiment, we asked whether dancers are able to suppress the spontaneous tendency towards entrainment when the two partners sway at different tempos. Touch evoked interpersonal entrainment only in mixed couples whereas touch interference was weaker in novices and absent in experts. All together, these results suggest that light fingertip touch evokes spontaneous interpersonal entrainment that is stronger whe...

This paper presents integrated tactiles (or vibrotactiles), a novel interface for movement and posture tuition that provides real-time feedback in a tactile form by means of interactive haptic feedback. Tactile feedback conveys information by using non-audio and non-visual form and is a promising means for movements in 3D-space. In this paper we demonstrate haptic augmentation for applications for musicians, since it (a) doesn't affect the visual sense, occupied by reading music and communication, (b) doesn't disturb in bang sensitive situations like concerts, (c) allows to relate feedback information in the same tactile medium as the output of the musical instrument, so that an important feedback channel for musical instrument playing is extended and trained supportive. Even more, instructions from the teacher and the computer can be transmitted directly and unobtrusively in this channel. This paper presents a prototype system together with demonstrations of applications th...

Nowadays the smart phones are equipped with touch based screens, enabling the user to interact in an easier and efficient way, compared to standard buttons. However, such screens require visual navigation, apparently different to access for the visually impaired.One of the technologies which aid the blind person to call in android mobile is Virtual Reality. Even though virtual reality is employed to carry out operations the blind person attention is one of the most important parameter. If the user commits any mistake to use the application it leads to a wrong call. So, in this paper we suggest technology to reduce the burdens of a blind person "Haptic Technology". Haptic is the science of applying tactile sensation to human interaction with computers. In our paper we have discussed the basic concepts behind haptic along with the haptic devices and how these devices are interacted to produce sense of touch and force feedback mechanisms. Also the implementation of this mechanism by means of haptic rendering and contact detection were discussed. Further we explained the storage and retrieval of haptic data while working with haptic devices.

... task," "repeat,"). 3.2.3. The vibrating mechanisms Figure 3. The Virtual Handball Demo: Picture above is the user's view of the demo in the HMD. Picture below shows a person trying the equipments for the demo. This application ...

Robotic-assisted surgeries are commonly used today as a more efficient alternative to traditional surgical options. Both surgeons and patients benefit from those systems, as they offer many advantages, including less trauma and blood loss, fewer complications, and better ergonomics. However, a remaining limitation of currently available surgical systems is the lack of force feedback due to the teleoperation setting, which prevents direct interaction with the patient. Once the force information is obtained by either a sensing device or indirectly through vision-based force estimation, a concern arises on how to transmit this information to the surgeon. An attractive alternative is sensory substitution, which allows transcoding information from one sensory modality to present it in a different sensory modality. In the current work, we used visual feedback to convey interaction forces to the surgeon. Our overarching goal was to address the following question: How should interaction for...

Ventriculostomy is a neurosurgical procedure that consists of the insertion of a catheter into the ventricles of the brain for relieving the intracranial pressure. A distinct "popping" sensation is felt as the catheter enters the ventricles. Early ventriculostomy simulators provided some basic audio/visual feedback to simulate the procedure, displaying a 3D virtual model of a human head. Without any tactile feedback, the usefulness of such simulators was very limited. The first generation haptic ventriculostomy simulators incorporated a haptic device to generate a virtual resistance and "give" upon ventricular entry. While this created considerable excitement as a novelty device for cannulating ventricles, its usefulness for teaching and measuring neurosurgical expertise was still very limited. Poor collocation between the haptic device stylus held by the surgeon and the visual representation of the virtual catheter, as well as the lack of a correct viewer-center...

We have constructed a haptic immersive workbench to be placed in the patients' home for daily adjusted rehabilitation. We also propose a system for Internet based connection and communication between patients and between patients and a clinical rehabilitation center and clinical assessment/evaluation centers. The benefits of a system for rehabilitation after stroke, based on VR, Haptics and Telemedicine should be: increased quality of life, lesser isolation, feeling more secure, fewer tiring transportations, more frequent exercising, better compliance to training, lower cost for transportation. The long term recovery for a larger group of patients with motor impairments is presently under evaluation.

Abstract The design of Sensory Substitution Devices (SSDs) often relies on the belief that the information supplied by the devices should allow the construction of spatial mental representations on the basis of which routes are planned. This study, in contrast, illustrates that navigation using an SSD can be conceived as an on-line, dynamic process, without the need for establishing a predefined plan or model of the task prior to its execution. We analyzed route selection performed with a vibrotactile SSD that could detect environmental surfaces only within a short spatial range, limiting the availability of information about remote parts of the environment to be navigated. Sixty sighted participants performed a navigation task that involved the goal of reaching a target destination while avoiding five obstacles (placed in randomly predetermined configurations). Three groups of participants differed in the sensory modality used (restricted visual, acoustic + vibrotactile, and restricted visual + vibrotactile). While participants in the visual condition had fewer obstacle collisions and reached the target location sooner, the groups coincided to a large extent in terms of the routes that they followed. Furthermore, the routes selected by participants in all groups conformed well to routes predicted by a dynamic model of visually-guided locomotion (Fajen and Warren, 2003). These findings show that local, limited information about environmental layout can support route selection equivalent to that seen when information about the full environmental layout is available.

Although research indicates that telepresence robots offer a more socially telepresent alternative to conventional forms of remote communication, the lack of touch-based interactions presents challenges for both remote and local users. In order to address these challenges, we have designed and implemented a robotic manipulator emulating a human arm. However, contact interactions like handshakes with a robotic manipulator may feel awkward and unnatural to local users. In this work, we present the design of a wearable haptic measurement glove (HMG) and use it to collect force and inertial data on handshakes in human-human and humanrobot interactions in the interest of developing intelligent shared control algorithms for natural, human-like contact interactions in human-robot interactions.

Converging evidence demonstrates the important role played by haptic feedback in virtual reality-based rehabilitation. Unfortunately many of the available haptic systems for research and intervention are rather costly, rendering them inaccessible for use in the typical clinical facility. We present a versatile and easy-to-use software package, based on an off-the-shelf force feedback joystick. We propose that this tool may be

The significance of haptic and virtual reality (VR) has been acknowledged by eminent dental professionals and has transformed dental teaching in the modern dental world. With this novel technological concept, students can interact with digital simulation on the screen and learn treatment skills before transferring them to real situations. This is helpful for gaining skills confidence, revising exercises again and again without the waste of materials, and for student assessment controlled by a teacher or tutor. It is a promising technology to enhance dental education for the new era of post COVID-19 practice due to noncontact patient training environments. It can create a safe learning environment for the teacher and learner or participant. The prospect of this literature review is to highlight the significance and clinical applications of virtual reality and simulations in undergraduate dental education.

Performing epidural injections is a complex task that demands a high level of skill and precision from the physician, since an improperly performed procedure can result in serious complications for the patient. The objective of our project is to create an epidural injection simulator for medical training and education that provides the user with realistic feel encountered during an actual procedure. We have used a Phantom haptic interface by SensAble Technologies, which is capable of three-dimensional force feedback, to simulate interactions between the needle and bones or tissues. An additional degree-of-freedom through an actual syringe was incorporated to simulate the "loss of resistance" effect, commonly considered to be the most reliable method for identifying the epidural space during an injection procedure. The simulator also includes a new training feature called "Haptic Guidance" that allows the user to follow a previously recorded expert procedure and f...