Feature extraction method, image identification method, device and electronic equipment

A feature extraction and image recognition technology, applied in the field of image processing, can solve problems such as reducing the accuracy and efficiency of image recognition, image tracking, image processing work impact, and inability to effectively transmit image information, so as to increase the amount of information and improve efficiency. Characterization, the effect of overcoming limitations

Pending Publication Date: 2017-12-22
SHENZHEN INTELLIFUSION TECHNOLOGIES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the feature extraction is not complete, sufficient and inaccurate, the information of the image cannot be effectively transmitted, which will affect the subsequent image processing work, such as reducing the accuracy and efficiency of subsequent image recognition and image tracking.

Method used

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  • Feature extraction method, image identification method, device and electronic equipment
  • Feature extraction method, image identification method, device and electronic equipment
  • Feature extraction method, image identification method, device and electronic equipment

Examples

Experimental program
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Embodiment

[0061] figure 1 It is a flow chart of the feature extraction method provided by the embodiment of the present invention. Wherein, according to different requirements, the order of the steps in the flow chart can be changed, and some steps can be omitted. Such as figure 1 As shown, the feature extraction method may include the following steps:

[0062] S10: Acquiring a target image.

[0063] The above target image is an image to be subjected to feature extraction. For example, if feature extraction is to be performed on an image captured by a camera, the image captured by the camera is used as a target image, and the target image is obtained. Meanwhile, the target image may be an original image captured by the camera, or an image obtained after preprocessing (for example, cutting the original image) on the original image captured by the camera.

[0064] The content in the target image may include: people, animals, buildings, scenery, etc., and the content in the target ima...

Embodiment approach

[0235] As a preferred embodiment, the device of the present invention also includes:

[0236] A dimensionality reduction module, configured to perform dimensionality reduction processing on the combined feature vector representing the target image.

[0237] The dimensionality reduction module may perform dimensionality reduction processing on the combined feature vector representing the target image before calculating the distance between the combined feature vector representing the target image and the feature vectors of the sample images in the image library.

[0238] After obtaining the combined feature vector representing the target image, in order to make the expression more concise and convenient for subsequent use, the combined feature vector representing the target image can be subjected to dimensionality reduction processing to reduce the computational complexity of subsequent use and improve computational efficiency.

[0239] The dimensionality reduction method inclu...

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Abstract

A feature extraction method comprises the following steps: obtaining a target image; dividing the target image into at least two areas according to the figure vertical direction in the target image; extracting color information of each area in a plurality of color spaces; combining the color information, extracted from the at least two areas, of the plurality of color spaces, thus obtaining a target image combined characteristic vector. The invention also provides a feature extraction device, an image identification method and device, and electronic equipment. The method can accurately extract image features, and can use the features to carry out image identification and tracking.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a feature extraction method, an image recognition method, a device and electronic equipment. Background technique [0002] With the development of computer technology, there are more and more applications of image processing technology, such as recognizing faces through image recognition technology, tracking people through image tracking technology, etc. Among them, people need to be recognized. However, in character recognition, the posture and movement of the human body often change greatly, so many features cannot be used. Feature extraction is an important technical link of image processing technology. Specifically, feature extraction uses a computer to extract image information to provide a basis for further image processing (such as image matching, image tracking, and person recognition, etc.). If the feature extraction is not complete, sufficient and inaccurate, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/46G06K9/62
CPCG06V40/103G06V10/50G06V10/56G06V10/757G06F18/2135
Inventor 杨茜牟永强
Owner SHENZHEN INTELLIFUSION TECHNOLOGIES CO LTD
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