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1. WO2020141330 - MID-AIR HAPTIC TEXTURES

Publication Number WO/2020/141330
Publication Date 09.07.2020
International Application No. PCT/GB2020/050013
International Filing Date 06.01.2020
IPC
G06F 3/01 2006.1
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
01Input arrangements or combined input and output arrangements for interaction between user and computer
CPC
G06F 3/011
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
01Input arrangements or combined input and output arrangements for interaction between user and computer
011Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
G06F 3/016
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
01Input arrangements or combined input and output arrangements for interaction between user and computer
016Input arrangements with force or tactile feedback as computer generated output to the user
G06F 3/017
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
01Input arrangements or combined input and output arrangements for interaction between user and computer
017Gesture based interaction, e.g. based on a set of recognized hand gestures
G06T 19/006
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
19Manipulating 3D models or images for computer graphics
006Mixed reality
G06T 7/40
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
40Analysis of texture
G06T 7/41
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
40Analysis of texture
41based on statistical description of texture
Applicants
  • ULTRAHAPTICS IP LTD [GB]/[GB]
Inventors
  • BEATTIE, David
  • CLARK, Rory
  • HARWOOD, Adam
  • GEORGIOU, Orestis
  • LONG, Benjamin John Oliver
  • CARTER, Thomas Andrew
Agents
  • WITHERS & ROGERS LLP
  • LATHAM, Stuart
Priority Data
62/788,32204.01.2019US
62/945,27209.12.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) MID-AIR HAPTIC TEXTURES
(FR) TEXTURES HAPTIQUES AÉRIENNES
Abstract
(EN)
Described is a method for instilling the haptic dimension of texture to virtual and holographic objects using mid-air ultrasonic technology. A set of features is extracted from imported images using their associated displacement maps. Textural qualities such as the micro and macro roughness are then computed and fed to a haptic mapping function together with information about the dynamic motion of the user's hands during holographic touch. Mid-air haptic textures are then synthesized and projected onto the user's bare hands. Further, mid-air haptic technology enables tactile exploration of virtual objects in digital environments. When a user's prior and current expectations and rendered tactile texture differ, user immersion can break. A study aims at mitigating this by integrating user expectations into the rendering algorithm of mid-air haptic textures and establishes a relationship between visual and mid-air haptic roughness.
(FR)
L'invention concerne un procédé d'instillation de la dimension haptique d'une texture sur des objets virtuels et holographiques à l'aide d'une technologie ultrasonore aérienne. Un ensemble de caractéristiques est extrait d'images importées à l'aide de leurs cartes de déplacement associées. Des qualités de texture telles que la micro-rugosité et la macro-rugosité sont ensuite calculées et fournies à une fonction de mappage haptique conjointement avec des informations concernant le mouvement dynamique des mains de l'utilisateur pendant un toucher holographique. Des textures haptiques aériennes sont ensuite synthétisées et projetées sur les mains nues de l'utilisateur. En outre, la technologie haptique aérienne permet une exploration tactile d'objets virtuels dans des environnements numériques. Lorsque les attentes et la texture tactile rendue antérieures et actuelles d'un utilisateur diffèrent, l'immersion de l'utilisateur peut être rompue. Une étude vise à atténuer cela en intégrant les attentes de l'utilisateur dans l'algorithme de rendu de textures haptiques aériennes et établit une relation entre la rugosité haptique visuelle et aérienne.
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