Large-Scale Image Data Similarity Search Method Based on emd Distance
An EMD distance and similarity search technology, which is applied in the fields of electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as unsatisfactory requirements, affecting the reliability of image retrieval results, and heavy manual annotation workload.
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[0062] Such as image 3 As shown, the steps of the large-scale image data similarity search method based on EMD distance in this embodiment include:
[0063] 1) An image data mapping function f designed to map image data to the one-dimensional real key-value space Ω(Φ), the image data mapping function f includes the relationship between the image data and the key value in the one-dimensional real key-value space The mapping relationship between;
[0064] 2) Start a MapReduce job MR1, and estimate the query processing load corresponding to each key value in the one-dimensional real number key-value space Ω(Φ) based on the query image set Q and the image set I to be retrieved through the MapReduce job MR1;
[0065] 3) Start a MapReduce job MR2, and cut the one-dimensional real number key-value space Ω(Φ) through the Map task of MapReduce job MR2 based on the estimated query processing load in step 2), and respectively divide the one-dimensional real number key-value space Ω( Φ...
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