Transmedia searching method based on content correlation
A correlation and cross-media technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as single feature space
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Embodiment 1
[0083] As shown in Figure 2, some examples of the topological structure of training data sets in low-dimensional isomorphic subspaces are given. The specific steps implemented in this example are described in detail below in conjunction with the method of the present invention, as follows:
[0084] (1) Collect image data and audio data of 7 semantics (birds, dogs, cars, wars, tigers, squirrels, monkeys) as training data sets;
[0085] (2) Use the feature extraction program to extract the HSV color histogram, color aggregation vector CCV and Tamura direction features of the image, construct a 500-dimensional visual feature vector for each image, and construct a 70×500-dimensional vision for 7 semantic categories. Feature matrix
[0086] (3) Use the feature extraction program to extract the four Mpeg compression domain features of the audio centroid (Centroid), attenuation cutoff frequency (Rolloff), spectrum flow (Spectral Flux) and root mean square (RMS);
[0087] (4) The duration...
Embodiment 2
[0094] As shown in Figure 4, a search example of "war", that is, semantics, is given. The specific steps implemented in this example will be described in detail below in conjunction with the method of the present invention, as follows:
[0095] (1) The input is a color picture with the semantics of "war" as a query example, and the system finds the vector representation in the isomorphic subspace corresponding to the picture;
[0096] (2) Use the existing data format conversion method to express the subspace vector corresponding to the query example in polar coordinates;
[0097] (3) Use the general distance function to calculate the distance between this query example and other images and audio in the database, and return the first 10 nearest images and the first 10 nearest audio examples;
[0098] (4) In addition, directly use the underlying content features of the query example without subspace mapping to match the content features of other images in the database, that is, use ...
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