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Image feature extraction method, computer readable storage medium and computer terminal

An image feature extraction and feature extraction technology, applied in computer parts, computing, instruments, etc., can solve problems such as low accuracy, and achieve the effect of improving the accuracy of feature extraction

Active Publication Date: 2022-02-22
ALIBABA DAMO (HANGZHOU) TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present application provide an image feature extraction method, a computer-readable storage medium, and a computer terminal, so as to at least solve the technical problem in the related art that the accuracy of feature extraction for target images corresponding to targets with variable angles is low.

Method used

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  • Image feature extraction method, computer readable storage medium and computer terminal
  • Image feature extraction method, computer readable storage medium and computer terminal
  • Image feature extraction method, computer readable storage medium and computer terminal

Examples

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Embodiment 1

[0045] According to the embodiment of the present application, an embodiment of an image feature extraction method is also provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and, Although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0046] The method embodiments provided in the embodiments of the present application may be executed in mobile terminals, computer terminals or similar computing devices. figure 1 A block diagram of a hardware structure of a computer terminal (or mobile device) for realizing the image feature extraction method is shown. Such as figure 1 As shown, the computer terminal 10 (or mobile device) may include one or more (shown by 102a, 102b, ..., 102n in the figure) processor 102 (the processor 102 may in...

Embodiment 2

[0117] According to an embodiment of the present application, an image feature extraction method is also provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although in the flow chart The figures show a logical order, but in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0118] Figure 9 It is a flowchart of an image feature extraction method according to Embodiment 2 of the present application. Such as Figure 9 As shown, the method may include the following steps:

[0119] Step S902, acquiring building images.

[0120] Step S904, using the feature extraction model to perform feature extraction on the building image to obtain building features of the building image.

[0121] Among them, the building feature and the building image have the same rotation variability, an...

Embodiment 3

[0144] According to an embodiment of the present application, an image feature extraction method is also provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although in the flow chart The figures show a logical order, but in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0145] Figure 10 is a flowchart of an image feature extraction method according to Embodiment 3 of the present application. Such as Figure 10 As shown, the method may include the following steps:

[0146] Step S1002, acquiring land parcel images.

[0147] Step S1004, using the feature extraction model to perform feature extraction on the plot image to obtain the plot features of the plot image.

[0148] Among them, the plot feature and the plot image have rotation equivariance, and the feature extrac...

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Abstract

The application discloses an image feature extraction method, a computer readable storage medium and a computer terminal. Wherein, the method includes: acquiring a target image; using a feature extraction model to perform feature extraction on the target image to obtain target features of the target image, wherein the target feature and the target image have variability such as rotation, and the feature extraction model includes: sequentially connected feature rotation Equivariant layer and at least one feature fusion layer, at least one feature fusion layer has different output resolutions, each feature fusion layer includes: rotation equivariant sublayer and multiple fusion sublayers, multiple fusion sublayers have the same structure . The present application solves the technical problem of low accuracy in feature extraction for target images corresponding to targets with variable angles in the related art.

Description

technical field [0001] The present application relates to the field of image feature extraction, and in particular, relates to an image feature extraction method, a computer-readable storage medium, and a computer terminal. Background technique [0002] In remote sensing image processing, since there is no fixed reference angle in the remote sensing image, the angle of the target usually changes. When the current feature extraction model performs feature extraction on target images with target objects with variable angles, it is difficult to perform rotation equivariance on the obtained target features, resulting in low feature extraction accuracy. [0003] For the above problems, no effective solution has been proposed yet. Contents of the invention [0004] Embodiments of the present application provide an image feature extraction method, a computer-readable storage medium, and a computer terminal, so as to at least solve the technical problem in the related art that th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06V20/00G06V10/80G06K9/62G06N3/04
CPCG06N3/045G06F18/253
Inventor 周强于超辉王志斌李昊
Owner ALIBABA DAMO (HANGZHOU) TECH CO LTD
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