Image analysis method, medium and apparatus and moving image segmentation system
First Claim
1. An image analysis method for an image signal representing an image, the method comprising:
- detecting a feature of the image;
determining a segmentation algorithm based on the detected feature of the image; and
segmenting the image signal using the determined segmentation algorithm.
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Abstract
An image analysis method, medium and apparatus for segmentation of a moving image, and a moving image segmentation system. The image analysis method includes receiving an image signal representing an image, detecting features of the image by calculating a difference between the current frame of the image signal and its previous frame, analyzing the image signal based on the detected features of the image, and performing segmentation on the image signal according to the analysis result, thereby separately performing segmentation on all types of moving images. In other words, by using an appropriate segmentation method according to a feature of an image, effective segmentation can be achieved.
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Citations
25 Claims
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1. An image analysis method for an image signal representing an image, the method comprising:
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detecting a feature of the image; determining a segmentation algorithm based on the detected feature of the image; and segmenting the image signal using the determined segmentation algorithm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 13)
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10. An image analysis method comprising:
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receiving an image signal representing an image and calculating a difference between two consecutive frames of the image signal; detecting motion of a camera taking the image based on the calculated difference; tracking feature points of the image and comparing the feature points with the motion of the camera in order to determine a quantity of outliers that are not associated with the motion of the camera; analyzing the image signal based on the motion of the camera and the number of outliers; and performing segmentation with respect to the image signal according to the analysis result. - View Dependent Claims (11)
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12. An image analysis method for an image signal provided by a moving image recording device, the method comprising:
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detecting features of the image signal including whether at least one of the image and a camera taking the image have motion; and segmenting the image signal into a foreground region and a background region using a predetermined segmentation algorithm selected according to the detected features of the image signal.
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14. An image analysis apparatus for an image signal representing an image, the apparatus comprising:
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a feature detection unit to detect a feature of the image; an image analysis unit to determine a segmentation algorithm based on the detected feature of the image; and an image segmentation unit to segment the image signal using the segmentation algorithm determined by the image analysis unit. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A moving image segmentation system to segment an image signal input received the image signal input apparatus into a foreground region and a background region, the system comprising:
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an image signal input apparatus; and an image mode classifying apparatus to classify the image signal into an image mode suitable for segmentation of the image signal based on the feature of the image signal received from the image signal input apparatus and to output the image signal to a segmentation apparatus corresponding to the mode into which the image signal is classified.
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25. A system analyzing an image signal provided by a moving image recording device, the system comprising:
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a feature detection unit to detect features of the image signal including whether at least one of the image and a camera taking the image have motion; and an image segmentation unit to segment the image signal into a foreground region and a background region using a predetermined segmentation algorithm selected according to the detected features of the image signal.
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Specification