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Image definition detection method and device and storage medium

A technology of image definition and detection method, which is applied in the field of image processing, and can solve problems such as low image definition and inconformity with image definition distribution.

Pending Publication Date: 2020-06-05
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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Problems solved by technology

[0004] However, when using the above-mentioned image sharpness detection method, when predicting a large number of pictures in the information stream, the data with a sharpness score above 0.9 (very clear) and a sharpness score below 0.1 (very blurred) occupy the vast majority. Conforms to the actual resolution distribution of the picture, resulting in lower resolution of the displayed picture

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  • Image definition detection method and device and storage medium
  • Image definition detection method and device and storage medium
  • Image definition detection method and device and storage medium

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Embodiment Construction

[0045] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0046] The image sharpness detection method provided by the embodiments of the present disclosure is applied in an information flow scene. In the information flow scene, the number of images is relatively large, the scene is complex, and the features are relatively rich. Clear images account for a relatively large proportion, blurred images account for a very small proportion, and ther...

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Abstract

The invention relates to an image definition detection method and device and a storage medium. The image definition detection method comprises the steps of determining a to-be-detected image; callinga classification model to predict a clear class score, a medium clear class score and a fuzzy class score of the to-be-detected image; and performing weighted summation on the clear class score, the medium clear class score and the fuzzy class score to obtain the definition of the to-be-detected image. Through the method and the device, the medium-definition images can be prevented from being divided into the definition images or the blurred images.

Description

technical field [0001] The present disclosure relates to the field of image processing, and in particular to an image definition detection method, device and storage medium. Background technique [0002] There are more and more types of applications for information flow personalized recommendation products. In many scenarios of information flow products, it is necessary to screen high-resolution pictures for display, so image definition detection has become an indispensable link in information flow scenarios. [0003] In related technologies, the following method is used for image sharpness detection: relying on manpower to mark the sharpness of a large number of sample pictures into clear and blurred categories, and construct a sharpness image data set. Then some features (for example, spectral features) are extracted from the image samples in the sharpness image dataset, and sent to a deep neural network or a machine learning classifier for training. Finally, the feature...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/62G06N3/04G06N3/08
CPCG06N3/08G06N3/045G06F18/241G06F18/214
Inventor 吴磊陈渊淳刚
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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