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Citation: Ambron E, Goldstein S, Miller A, Hamilton RH and Coslett HB (2022) From my skin to your skin: Virtual image of a hand of different skin color influences movement duration of the real hand in Black and White individuals and influences racial bias. Front. Virtual Real. 3:884189. doi: 10.3389/frvir.2022.884189
Traditional technologies for virtual reality (VR) and augmented reality (AR) create human experiences through visual and auditory stimuli that replicate sensations associated with the physical world. The most widespread VR and AR systems use head-mounted displays, accelerometers and loudspeakers as the basis for three-dimensional, computer-generated environments that can exist in isolation or as overlays on actual scenery. In comparison to the eyes and the ears, the skin is a relatively underexplored sensory interface for VR and AR technology that could, nevertheless, greatly enhance experiences at a qualitative level, with direct relevance in areas such as communications, entertainment and medicine1,2. Here we present a wireless, battery-free platform of electronic systems and haptic (that is, touch-based) interfaces capable of softly laminating onto the curved surfaces of the skin to communicate information via spatio-temporally programmable patterns of localized mechanical vibrations. We describe the materials, device structures, power delivery strategies and communication schemes that serve as the foundations for such platforms. The resulting technology creates many opportunities for use where the skin provides an electronically programmable communication and sensory input channel to the body, as demonstrated through applications in social media and personal engagement, prosthetic control and feedback, and gaming and entertainment.
Virtual reality technology is developing fast. But up until recently, most approaches have focused on sight and sound, relatively few have tackled touch. Now, researchers at Northwestern University have created a flexible 'haptic skin' which aims to create a new way to experience virtual reality - a physical interface between the virtual world and a user's skin. The device translates virtual signals into physical sensations, designed to mimic the feeling of being touched.
A new lightweight, flexible, and wirelessly-powered synthetic skin could soon change that. Developed at Northwestern University, the 15-centimeter-square patch can be stuck onto any part of the body and uses actuators that vibrate against the skin to simulate tactile sensations.
The key innovation with the VR skin was creating a vibrating actuator only a couple millimeters thick that can be powered with very little energy. That not only means the device is lightweight enough to stick to the body without falling off, but it can also be powered using the same kind of inductive charging found in wireless smartphone chargers.
The prototype device described in a recent paper in Nature features an array of 32 of these actuators sandwiched between soft flexible fabric that can stick directly onto the skin. Each actuator can be individually programmed and tuned to different frequencies to vary the strength of the sensation.
The synthetic skin is controlled wirelessly using a touchscreen interface on a smartphone or tablet that transmits tactile patterns to the patch. Currently, the device has to be kept within 30 to 50 centimeters of the antenna that powers it.
I recently had this problem and it was because I didn't realize the skin I downloaded had two zip files inside of it for two different colored emulators. So, not only was I one level too high, Android Studio also didn't know what to do with those zip files.
"With the rapid development of virtual and augmented reality (VR and AR), our visual and auditory senses are not sufficient for us to create an immersive experience. Touch communication could be a revolution for us to interact throughout the metaverse," said Dr Yu Xinge, Associate Professor in the Department of Biomedical Engineering (BME) at CityU.
While there are numerous haptic interfaces in the market to simulate tactile sensation in the virtual world, they provide only touch sensing or haptic feedback. The uniqueness of the novel e-skin is that it can perform self-sensing and haptic reproducing functions on the same interface.
The e-skin contains 16 flexible actuators (cum sensors) in a 4 X 4 array, a microcontroller unit (MCU), a Bluetooth module and other electronics on a flexible circuit board. All the components are combined in a 7cm X 10cm, 4.2mm-thick skin-patch-like device.
The button-liked actuator, comparable in size to a HK 10-cent coin, serves as the core part of the e-skin. Each of the actuators consists of a flexible coil, a soft silicone support, a magnet and a thin polydimethylsiloxane (PDMS) film, which perform the touch sensing and haptic feedback functions based on electromagnetic induction.
Once the actuator is pressed and released by an external force, a current is induced to provide electrical signals for tactile sensation to a corresponding actuator in another e-skin patch. The deeper the sender presses, the stronger and longer the sensation generated on the other e-skin.
The electrical signal generated from the actuators is converted to a digital signal by an analog-to-digital converter on the circuit board of the e-skin patch. The data is then transmitted to the actuators on another e-skin via Bluetooth.
When the signal is received, a current is induced to reproduce the haptic feedback on the receiver's e-skin through mechanical vibration. The process can be reversed to deliver vibrations from the receiver's e-skin to the corresponding actuator of the sender's.
Although each actuator can perform only one task at a time, the rest of the 15 actuators on the e-skin can supplement each other and perform the sensing or haptic reproducing function, allowing the e-skin patch to achieve bidirectional touch transmission simultaneously.
"Our e-skin can communicate with Bluetooth devices and transmit data through the internet with smartphones and computers to perform ultralong-distance touch transmission, and to form a touch Internet of Things (IoT) system, where one-to-one and one-to-multiple touch delivery could be realised. Friends and family in different places could use it to 'feel' each other," said Dr Yu. "This form of touch overcomes the limitations of space and greatly reduces the sense of distance in human communication."
An invasive biopsy followed by histological staining is the benchmark for pathological diagnosis of skin tumors. The process is cumbersome and time-consuming, often leading to unnecessary biopsies and scars. Emerging noninvasive optical technologies such as reflectance confocal microscopy (RCM) can provide label-free, cellular-level resolution, in vivo images of skin without performing a biopsy. Although RCM is a useful diagnostic tool, it requires specialized training because the acquired images are grayscale, lack nuclear features, and are difficult to correlate with tissue pathology. Here, we present a deep learning-based framework that uses a convolutional neural network to rapidly transform in vivo RCM images of unstained skin into virtually-stained hematoxylin and eosin-like images with microscopic resolution, enabling visualization of the epidermis, dermal-epidermal junction, and superficial dermis layers. The network was trained under an adversarial learning scheme, which takes ex vivo RCM images of excised unstained/label-free tissue as inputs and uses the microscopic images of the same tissue labeled with acetic acid nuclear contrast staining as the ground truth. We show that this trained neural network can be used to rapidly perform virtual histology of in vivo, label-free RCM images of normal skin structure, basal cell carcinoma, and melanocytic nevi with pigmented melanocytes, demonstrating similar histological features to traditional histology from the same excised tissue. This application of deep learning-based virtual staining to noninvasive imaging technologies may permit more rapid diagnoses of malignant skin neoplasms and reduce invasive skin biopsies.
The Emerald Nitrile Virtual Skin exam glove uses Soft Stretch Modulus Technology to provide a second-skin comfort level. This latex-free textured glove offers the very best in tactile sensitivity, chemical resistance, and blood-borne pathogen protection. The Emerald Nitrile Virtual Skin exam glove reduces hand fatigue and has superior tensile strength. 100 gloves per dispenser box, 10 boxes per case.
Virtual skin cancer spot checks are our most flexible option to get advice on concerning moles. You can submit a skin cancer spot check at any time or place you have an internet connection. This service is designed to analyze 1-2 specific moles. It does not replace a full body skin check.
A Virtual Skin Cancer Spot Check is a way to receive medical advice on concerning moles without needing to go in-person to a clinic. This service is designed to analyze 1-2 specific moles. They are not meant to replace a full body skin check.
You should seek an expert opinion when you believe you have a mole that might be cancerous. Detecting skin cancers early is critical, especially for melanomas (the most deadly form of skin cancer). The earlier a melanoma is caught and treated, the better chance of survival.
If you have an existing virtual device, click Edit this AVD button and select the downloaded Emulator Skin. Otherwise, click Create device in Device Manager.
Before launching your virtual device, go to File > Settings > Tools > Emulator and uncheck Launch in a tool window to launch Android Emulator as a standalone application.
Denys Makarov at Helmholtz-Zentrum Dresden-Rossendorf, in Germany, and his colleagues have engineered a magnetosensitive electronic skin, or e-skin, with directional perception. The device can track the subtle motions of the human hand, and is so thin and flexible that it is tangibly imperceptible.
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