Method of and apparatus for retrieving movie image
First Claim
1. A method of retrieving a movie image, comprising the steps of:
- sequentially inputting, into a processor, subject movie images from the movie image information comprising a number of successive images;
deriving feature values which vary in time from the signal of the inputted movie images;
producing first feature value information by quantization of the time feature values of the derived signal with a predetermined width of quantization;
deriving second feature value information which corresponds to the first feature value information and which is subjected to comparison operation, stored in advance in data-base; and
matching, using a quantization error, the first feature value information with the second feature value information in accordance with a predetermined determination formula.
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Abstract
The movie image retrieving apparatus includes an image input device 13 to which the movie images are inputted in a time-series manner, a feature value calculation device 14 which includes a feature value deriving section 16 for deriving the feature value and a quantization section 17 which quantizes the feature value with a predetermined quantization width to produce the feature value information, a comparative information selection device 15 for deriving the comparative feature value information from the data-base, and a matching device 18 for matching the feature value information and the comparative feature value information using a quantization error. The matching result is outputted from the output device 19. Load on the hardware is reduced and the time required for the search is shortened.
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Citations
21 Claims
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1. A method of retrieving a movie image, comprising the steps of:
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sequentially inputting, into a processor, subject movie images from the movie image information comprising a number of successive images;
deriving feature values which vary in time from the signal of the inputted movie images;
producing first feature value information by quantization of the time feature values of the derived signal with a predetermined width of quantization;
deriving second feature value information which corresponds to the first feature value information and which is subjected to comparison operation, stored in advance in data-base; and
matching, using a quantization error, the first feature value information with the second feature value information in accordance with a predetermined determination formula. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 20)
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11. An apparatus for retrieving a movie image comprising:
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an image input means for sequentially inputting, into a processor, the subject movie images from the movie image information comprising a number of successive images;
a feature value calculation means which comprises a feature value deriving section for deriving feature values which vary in time from the signal of the movie images inputted through the image input means, and a quantization process section for quantizing, with a predetermined width of quantization, the feature value derived from said feature value deriving section so that feature value information is produced;
a comparative information selection means for deriving, from a data-base that stores information in advance, comparative feature value information corresponding to the movie image inputted through the image input means;
a matching process means for performing movie image matching in accordance with a determination formula using a quantization error between the feature value information obtained at the quantization process section in the feature value calculation means and the feature value information derived at the comparative information selection means; and
a search result process means for outputting the result obtained at the matching process means. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 21)
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Specification