Image searching method and related device
An image search and image technology, applied in the field of image processing, can solve problems such as large memory space occupation and long time consumption
Pending Publication Date: 2022-03-08
ZHEJIANG DAHUA TECH CO LTD
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This method of comprehensive retrieval of stored images takes up a lot of memory space and takes a long time
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[0081] The technical solutions in the embodiments of the present application will be described clearly and in detail below in conjunction with the accompanying drawings. In the description of the embodiments of the present application, unless otherwise specified, "face will mean or, for example, A / B can mean A or B; "and / or" in the text is only a description of the association of associated objects relationship, which means that there may be three kinds of relationships, for example, A and / or B, can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiment of this application, " A plurality means two or more than two.
[0082] In the description of the embodiments of the present application, unless otherwise specified, the term "plurality" refers to two or more, and other quantifiers are similar. It should be understood that the preferred embodiments described here are only used to illustrate and explain the pre...
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The invention discloses an image search method and a related device. An image base library is constructed by performing dimension reduction processing on original images in an original image library. And after dimension reduction processing is carried out on the to-be-processed images, the to-be-processed images and the dimension-reduced images in the image base library have the same feature number. And performing feature comparison on the image base library based on the dimension reduction feature to determine a dimension reduction retrieval image with relatively high similarity with the to-be-processed image, thereby reducing the retrieval range. Furthermore, a retrieval image set corresponding to the dimension reduction retrieval image is determined from the original image library, and secondary feature comparison is performed according to the to-be-processed image and the retrieval image set, so that a target image is determined. According to the process, similarity comparison is carried out by adopting the dimension reduction features so as to reduce the occupation of a memory space and improve the retrieval efficiency. And after the retrieval range is narrowed down, the to-be-processed image is adopted for carrying out secondary feature comparison on the dimensionality-reduced image features and the retrieval image set, so that the retrieval precision of the target image is improved.
Description
technical field [0001] The invention relates to the technical field of image processing, in particular to an image search method and a related device. Background technique [0002] With the development of science and technology, image retrieval technology is becoming more and more mature. Image retrieval technology is to obtain images similar to the image to be searched by comparing the feature vector extracted from the image to be searched with the image in the image library for similarity. [0003] In related technologies, linear retrieval is often used to retrieve image features. The so-called linear retrieval is to compare the global features of all images in the image database through the feature vectors of the images to be searched. In today's security, monitoring and other fields, hundreds of millions of image data are accumulated, and the vectorized feature dimensions are hundreds or thousands. This method of comprehensively retrieving stored images takes up a lot ...
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IPC IPC(8): G06F16/583G06F16/58G06V10/74G06V10/77G06K9/62
CPCG06F16/583G06F16/5866G06F18/22G06F18/213
Inventor 杨凯航殷俊朱树磊
Owner ZHEJIANG DAHUA TECH CO LTD