Download Infrared-Based Blink-Detecting Glasses for Facial PacingToward a

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

page
1
page
2
page
3
page
4
Document related concepts
no text concepts found
Transcript 
From: Infrared-Based Blink-Detecting Glasses for Facial PacingToward a Bionic Blink
JAMA Facial Plast Surg. 2014;16(3):211-218. doi:10.1001/jamafacial.2014.1
Figure Legend:
Prototype Blink Detection Pair of GlassesFrontal (A) and lateral (B) views of a prototype blink detection pair of glasses with an arrow
demonstrating the path in infrared (IR) light traveling horizontally across the corneal surface from the IR LED (nasal side) toward the
IR detector (temporal side).
Date of download: 4/30/2017
Copyright © 2014 American Medical
Association. All rights reserved.
From: Infrared-Based Blink-Detecting Glasses for Facial PacingToward a Bionic Blink
JAMA Facial Plast Surg. 2014;16(3):211-218. doi:10.1001/jamafacial.2014.1
Figure Legend:
Flow Diagram of the Eye Blink Detection SystemThe diagram shows the (1) infrared (IR) emitter and detector units in relation to the
eye, (2) variable gain of the preamplifier receiving the phototransistor output, (3) signal filtering, and (4) final output of the circuit as a
time-varying analogue voltage ranging from 0 to 5 V. An unbroken beam generates a 5-V output, whereas a completely obstructed
beam generates a 0-V output, with partial obstruction producing voltages in between these extremes. LED indicates light-emitting
diode.aFairchild Semiconductor Corporation. Copyright © 2014 American Medical
Date of download: 4/30/2017
Association. All rights reserved.
From: Infrared-Based Blink-Detecting Glasses for Facial PacingToward a Bionic Blink
JAMA Facial Plast Surg. 2014;16(3):211-218. doi:10.1001/jamafacial.2014.1
Figure Legend:
Blink Detection System Testing and Data CollectionA, A participant is shown standing in position for the 6-minute blink detection
recording session, photographed during the initial 102-second instructional video. B, An adjustable chin rest helped participants
maintain a forward head position, and a forward gaze was held through the instructional video (during which spontaneous blinks
were detected). C, Photograph of a participant assuming an upper right gaze position as she looked at a target (blue dot). Targets
appeared in the 4 corners of the smart board screen,
in addition
center,Medical
upper center, and lower center (see Methods section for
Copyright
© 2014 to
American
Date
of download:
4/30/2017
presentation
sequence).
Association. All rights reserved.
From: Infrared-Based Blink-Detecting Glasses for Facial PacingToward a Bionic Blink
JAMA Facial Plast Surg. 2014;16(3):211-218. doi:10.1001/jamafacial.2014.1
Figure Legend:
Examples of the Blink Detection Circuit Output for a Blink and Downward GazeThe detector receives a relatively unobstructed beam
during forward gaze, producing an output in the 4- to 5-V range (A, time zero), but drops in voltage when the beam is broken by the
lowering upper eyelid during a blink or looking downward. This drop in voltage is typically more rapid for blinking than gaze-related
eyelid movement, as shown by the slope (downward pointing arrows) and by the first derivative of the output signals (B). The
difference in peak derivative for blink vs downward
gaze is© highlighted
by the
dotted lines and double-headed arrow.
Copyright
2014 American
Medical
Date of download: 4/30/2017
Association. All rights reserved.
Related documents