Tactile Movies

8/6/2019 Tactile Movies

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PR ESENTED BY, JASHNI.K



OUTLINEINTR ODUCTION

R OLE OF TACTILE CONTENTS IN MOVIE SYSTEMS

TACTILE MOVIE SYSTEMDESIGN OF GLOVE TY PE TACTILE DISPLAY

TOOL FOR TACTILE MOVIE AUTHOR ING

ADVANTAGES

DISADVANTAGES

CONCLUSION AND FUTUR E SCOPE

BIBILIOGR A PHY



INTRODUCTIONTactile movies provides tactile sensations

synchronized with audio-visual media.

Increases the immersive multimedia experiencesin movies.

Increases the level of richness and interactivity.



MOTIVATIONTHE BLIND DR IVER CHALLENGER PR OJECT THATENABLES THE BLINDS TO DR IVE

THE CA R

GIVE R OBOT A SENSE OF TOUCH

WITH TACTILESENSOR S

HA PTICS IN COMPUTER GAMECONTR OLLER S



Role of tactile contents in movie

systemsEnhances audiences enjoyment .

Conveys artistic and semantic intentions of thedirector.

Emphasize specific scenes and provides rich

impression to viewers.







Tactile movie systemThe MPEG-4 system is used to implement an enhanced

tactile movie system.

It is extended by adding a new node called TactileDisplay.

Tactile contents are represented as a greyscale video called

tactile video within the TactileDisplay node.

Gloves with vibrating motors are used to deliver tactilestimuli to users as they watch movies.



Overall system configuration



Design of the glove type tactile

displaySensations are provided by many actuators on the

gloves.

Four tactile actuators are attached to the front part of each digit of the inner glove.

It allows the rectangular tactile video to be directly mapped onto the tactile array.



The electrical system of the display consists of four key components:

1) a battery

2) a microcontroller

3) a Bluetooth communication module

4)vibrating motors

All control hardware is embedded in the glove wrist bands.

The control of the gloves is wireless which enablesunencumbered viewing.



Glove type of vibrotactile display



Tactile rendering process



The tactile device controller is connected to the tactilehardware

It translates the greyscale video representation into anarray of varying actuation intensities.

Initially, the scene descriptor provides the decoded

greyscale tactile video frame

This information typically contains the

actuation intensity of each element in the tactile array.



When the tactile array size does not match the tactile video size, re-sampling is performed .

A P WM algorithm is used to render stimuli of varyingmagnitude according to the intensities specified in the

video.

This system is customizable and can be used to drivetactile devices of varying shapes and configurations.



A tool for tactile movie authoring Ease the process of creating tactile content to

accompany audiovisual media.

A tactile video is created by drawing lines with atactile brush on a semi-transparent tactile canvas .

The cells of the tactile array are spatially mapped to this tactile video.



SCR EENSHOT OF TACTILE MOVIE AUTHOR ING TOOL



On-screen components of tactile

authoring tool

COMPONENTS

MAIN FR AMETACTILE VIDEO AUTHOR ING

DIALOG

TACTILE VIDEO VIEW

SETTINGSDIALOG

ENCA PSULATES ALL ELEMENTS

OVER LAYSTACTILEINFOR MATIONON VISUAL

SCENES

R A PID VIEWING OF VISUAL-AUDIO-TACTILECONTENT

MANIPULATIONOF SIZE OFTACTILE A RR AY AND VIDEO AND

P A R AMETER OFTACTILE BR USH



off

Grid aid line according to the size of tactile displays



Five arbitrary intensities of the tactilebrush can be seen, shown as differentintensities (0-255) of greyscale brightness.



Overlappingtwo frames Showing previous and

next framesfor temporal authoring



MA PPING A

TACTILE VIDEO







Tactile video matched with movie scenes



Latency measurement.

Motor were found to commence activation about 50 ms after thesignal is issuedSignal reaches full intensity at 92 ms after activation

Acceleration vs time



OBJECTIVE EVALUATIONS





ADVANTAGESIncreases immersive multimedia experiences.

Equipments worn are very comfortable.

Effective interpretation possible.



DISADVANTAGES

Ist person metaphor is not provided.

Tactile cues applied only to the hands.

Viewers may experience some confusion if all the

tactile cues are displayed to the hands.



CONCLUSION AND FUTURE SCOPE

Tactile enhanced movie system provides viewers with

passive, on-skin, tactile sensations synchronized withaudio-visual media.

Incorporation of 1st person metaphor.

Automatic capture of tactile media.

Development of tactile language.



BIBILIOGRAPHY

[1] Touch TV: Adding Feeling to Broadcast Media by S.OModhrain and I. Oakley,

[2], A Body- Conforming Tactile Jacket to EnrichMovie Viewing, by P. Lemmens, F. Crompvoets, D.Brokken, J. van den Eerenbeemd, and G. de Vries.

[3] B. Adams and S. Venkatesh, Authoring Multimedia Authoring Tools, Multimedia, IEEE, vol.11.



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Tactile Movies