Image Morphing Based on Feature Curves Approximated by Using Line Segments
Kazufumi Kaneda, Masahiro Mutsuno, Hideo Yamashita
Journal of the Institute of Image Electronics Engineers of Japan,
Vol. 29, No. 4, pp. 320-329 (2000) (in Japanese)
ABSTRACT
Image morphing is often used for visual effects in TV commercial messages and films,
and is one of important techniques in computer graphics.
In 2D morphing, a field morphing has been developed.
The method uses a pair of corresponding line segments specified
in the source and target images as feature primitives.
This paper proposes an improved method of the field morphing.
The proposed method uses feature curves approximated by using short line segments,
and generates natural deformations by introducing the localization
of spatial deformation.
In the proposed method, feature segments are extracted from the images
using techniques of image processing,
and a set of the feature segments is used for deformation as a feature primitive.
Making use of nested structures of the sequences of the feature segments,
the localization of spatial deformation can be realized.
The paper also proposes a method for accelerating the image morphing
that generates a sequence of images, employing adaptive subdivision
of the image space.
Keywords: 2D image morphing, Feature curve, Nested structure,
Acceleration, Warping
Figure 9: Image morphing between a mouse and a car.
Figure 11: Image morphing between the muppets.
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