Salient motion detection system, method and program product therefor
First Claim
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1. A method of identifying objects with salient motion in a scene, said method comprising of the steps of:
- a) identifying a region of change within a scene;
b) determining optical flow for said region;
c) identifying seed pixels moving in a common direction in said region;
d) expanding identified said seed pixels, pixel clusters being formed from expanded said seed pixels; and
d) fusing results of steps (a), (b) and (c), fused said results identifying objects having salient motion.
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Abstract
An apparatus and method of identifying objects with salient motion in a scene and program product therefor. A region of change is identified within a scene. Optical flow is determined for the region of change. Pixels moving in a common direction are identified as seed pixels. Seed pixels are expanded to form pixel clusters. Temporal imaging results are fused to identify those objects with salient motion.
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Citations
20 Claims
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1. A method of identifying objects with salient motion in a scene, said method comprising of the steps of:
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a) identifying a region of change within a scene;
b) determining optical flow for said region;
c) identifying seed pixels moving in a common direction in said region;
d) expanding identified said seed pixels, pixel clusters being formed from expanded said seed pixels; and
d) fusing results of steps (a), (b) and (c), fused said results identifying objects having salient motion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A computer program product for identifying objects with salient motion in a scene, said computer program product comprising a computer usable medium having computer readable program code thereon, said computer readable program code comprising:
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computer readable program code means for identifying a region of change within a plurality of sequential frames, I(x, y, t);
computer readable program code means for determining optical flow for said region of change;
computer readable program code means for identifying seed pixels in said region moving in a common direction;
computer readable program code means for expanding identified said seed pixels, pixel clusters being formed from expanded said seed pixels; and
computer readable program code means for fusing temporal imaging results. - View Dependent Claims (11, 12, 14, 15, 16, 17, 18)
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19. An apparatus for identifying objects with salient motion in a scene, said apparatus comprising:
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means for identifying a region of change within a plurality of sequential frames, I(x, y, t);
means for determining optical flow for said region of change over a given period of time, [t, t+n];
means for identifying seed pixels in said region moving in a common direction;
means for expanding identified said seed pixels, pixel clusters being formed from expanded said seed pixels; and
means for fusing temporal imaging results. - View Dependent Claims (20)
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Specification