Algorithm 版 (精华区)
发信人: Lerry (想不开·撞树), 信区: Algorithm
标 题: Behavioral modal of Active visual perception...
发信站: 哈工大紫丁香 (2002年04月21日11:06:58 星期天), 站内信件
http://www.voicenet.com/~rybak/vnc.html
BMV:
Behavioral Model of Active Visual
Perception and Recognition
I. A. Rybak, A. V. Golovan, V. I. Gusakova,
N. A. Shevtsova, and L. N. Podladchikova
Table of Contents
Approach
Animated illustration (parallel-sequential image processing in
human vision)
Model
Examples of recognition of scene objects and faces
Recent paper (postscript file):
I. A. Rybak, V. I. Gusakova, A.V. Golovan, L. N. Podladchikova, and N
. A.
Shevtsova.
A model of attention-guided visual perception and recognition. Vision
Ressearch
(in press).
Download DEMO for DOS/Windows
DEMO demonstrates the ability of BMV model to recognize complex gray-
leve
images (e.g. faces) invariantly in respect to shift, rotation and sca
le
Press release:
"Brain model recognizes images" by Andrew Wilson
(published in Vision Systems Design, 1997, Vol. 2, No 3, pp. 11-12).
"Learning system includes feedback control loop" by Colin Johnson
(published in Electronic Engineering Times of 4/22/1996, pp. 33, 40)
.
( Abstract)
Related attention and eye movement links
Recognition, recognition...
Approach
The mind can only see what it is prepar
ed tto see.
Edward de Bo
no
During visual perception and recognition, human eyes move and successively f
ixatte at
the most informative parts of the image (Yarbus 1967). The eyes actively per
form
problem-oriented selection and processing of information from the visible wo
rld under
the control of visual attention (Burt 1988; Julesz 1975; Neisser 1967; Noton
andd Stark
1971; Triesman and Gedal 1980, Yarbus 1967). Consequently, visual perception
and
recognition may be considered as behavioral processes, and probably cannot b
e
completely understood in limited frames of neural computations without takin
g innto
account behavioral and cognitive aspects of these processes. (Click here to
see an
animated illustration of parallel-sequential image processing in human visua
l syystem
based on both the sequential eye movements and the foveal structure of the r
etinna).
From the behavioral point of view, an internal representation (model) of new
circumstances is formed in the brain during conscious observation and active
examination. The active examination is aimed toward the finding and memorizi
ng o
functional relationships between the applied actions and the resulting chang
es i
sensory information. An external object becomes "known" and may be recognize
d whhen
the system is able to subconsciously manipulate the object and to predict th
e obbject's
reactions to the applied actions. According to this paradigm, the internal o
bjec
representation contains chains of alternating traces in "motor" and "sensory
"
memories. Each of these chains reflects an alternating sequence of elementar
y mootor
actions and sensory (proprioceptive and external) signals which are expected
to arrive
in response to each action. The brain uses these chains as "behavioral progr
ams"" in
subconscious "behavioral recognition" when the object is (or is assumed) kno
wn. This
"behavioral recognition" has two basic stages: (i) conscious selection of th
e
appropriate behavioral program (when the system accepts a hypothesis about t
he
object), and (ii) subconscious execution of the program. Matching the expect
ed
(predicted) sensory signals to the actual sensory signals, arriving after ea
ch mmotor
action, is an essential operation in the program execution.
The above behavioral paradigm was formulated and developed in the context of
vissual
perception and recognition in a series of significant works (Yarbus, 1967; N
otonn &
Stark, 1971; Didday & Arbib, 1975; Kosslyn et al., 1990; Rimey and Brown, 19
91).. Using
Yarbus
circumstances is formed in the brain during conscious observation and active
examination. The active examination is aimed toward the finding and memorizi
ng o
functional relationships between the applied actions and the resulting chang
es i
sensory information. An external object becomes "known" and may be recognize
d wh
the system is able to subconsciously manipulate the object and to predict th
e obhen
reactions to the applied actions. According to this paradigm, the internal o
bjecbject's
representation contains chains of alternating traces in "motor" and "sensory
"
memories. Each of these chains reflects an alternating sequence of elementar
y mo
actions and sensory (proprioceptive and external) signals which are expected
tootor
in response to each action. The brain uses these chains as "behavioral progr
ams" arrive
subconscious "behavioral recognition" when the object is (or is assumed) kno
wn." in
"behavioral recognition" has two basic stages: (i) conscious selection of th
e
appropriate behavioral program (when the system accepts a hypothesis about t
he
object), and (ii) subconscious execution of the program. Matching the expect
ed
(predicted) sensory signals to the actual sensory signals, arriving after ea
ch m
action, is an essential operation in the program execution.
The above behavioral paradigm was formulated and developed in the context of
vis
perception and recognition in a series of significant works (Yarbus, 1967; N
otonsual
Stark, 1971; Didday & Arbib, 1975; Kosslyn et al., 1990; Rimey and Brown, 19
91).n &
Yarbus
--
当一个女孩儿觉得她不太容易了解那个男人的时候,她会爱他。
※ 来源:·哈工大紫丁香 bbs.hit.edu.cn·[FROM: 218.7.32.57]
Powered by KBS BBS 2.0 (http://dev.kcn.cn)
页面执行时间:2.816毫秒