主観的輪郭を含めた3次元物体認識システム
3-D Object Recognition System Using Subjective Contours
石原 恵子 ISHIHARA Keiko・石原 茂和 ISHIHARA Shigekazu・
長町 三生 NAGAMACHI Mitsuo
Vol.2, No.3 (August 1995), pp.66-80.
Received 1994/2/8, accepted 1995/6/15.
ABSTRACT: We describe a 3-D object recognition system from gray-scale images.
It uses "subjective contours" as well as
luminance edges (physical contours). In
this paper, we suppose two kinds of subjective contours based on
psychological and physiological findings: (1) Subjective contours that are
automatically generated as by-products in the lower level processes of
visual system. Alignment and proximity of physical contours and line ends
promote generating such contours. The edge detection process involved in
this kind of subjective contours are modeled by BCS neural network
(Grossberg & Carpenter, 1985) in our system. (2) Subjective contours that
represent a hypothesis of segmentation with volumes in the higher level
process. The volumes have primitive shapes and they are components of
object models. We used geons (Biederman, 1987) for describing object
models. Higher level process groups both physical and subjective contours
that are detected in the lower level process into the most probable geons,
by found features such as line junctions and curvatures of lines. We
describe the idea of recognition system that combines lower and higher level
processes. We applied it to partially shaded images, arrangement of lines
and partly degraded image.
keywords：
物体認識システム object recognition system，
主観的輪郭 subjective contours，
境界輪郭システム BCS，物体モデル object models，ジオン geons
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