Video memorability discrimination method based on functional magnetic resonance imaging

A technology of functional magnetic resonance and memory, which is applied in character and pattern recognition, special data processing applications, instruments, etc., and can solve problems such as video memory discrimination

Inactive Publication Date: 2013-12-11
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

[0007] In order to solve the problem of video memory discrimination, and at the same time apply human brain cognitive information to the problem of video memory discrimination, and improve the accuracy of video memory discrimination, the present invention proposes a video memory discrimination method based on functional magnetic resonance imaging

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  • Video memorability discrimination method based on functional magnetic resonance imaging
  • Video memorability discrimination method based on functional magnetic resonance imaging
  • Video memorability discrimination method based on functional magnetic resonance imaging

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Embodiment Construction

[0044] Now in conjunction with embodiment, accompanying drawing, the present invention will be further described:

[0045] The hardware environment used for implementation is: AMD Athlon64×25000+ computer, 2GB memory, 256M graphics card, and the running software environment is: Matlab2009a and Windows XP. We have realized the method that the present invention proposes with Matlab software.

[0046] The present invention is specifically implemented as follows:

[0047] 1: Extract the underlying visual feature vectors of N video data:

[0048] Step a: Extract the first frame of each second of each video data as the key frame of the video data.

[0049] Step b: use the object bank program package released by Li-Jia Li in 2010, for each key frame, use down-sampling technology to obtain 12 scale images of the input image, and combine these 12 scale images with the object bank program 208 object templates are convoluted to obtain 208×12 response images for each key frame; using t...

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Abstract

The invention relates to a video memorability discrimination method based on functional magnetic resonance imaging. A feature subspace model is built according to bottom-layer visual features of a few of video data in a video data base and cerebral function imaging space features corresponding to the video data, the bottom-layer virtual features of the video data without functional magnetic resonance imaging are mapped to the feature subspace to acquire the features of all the video data based on functional magnetic resonance imaging, a support vector regression is then trained, a video datum with unknown memorability value is given and the memorability value of the video datum is discriminated; compared with the traditional method that bottom-layer virtual features like colors, shapes and textures are utilized to carry out video memorability discrimination, the video memorability discrimination method based on functional magnetic resonance imaging greatly improves accuracy rate of video data memorability discrimination because the cerebral function imaging space features extracted from the functional magnetic resonance imaging data can be used for guide video memorability discrimination, and human brain cognation information is applied to video memorability discrimination.

Description

technical field [0001] The invention relates to a video memory judging method based on functional magnetic resonance imaging, which can be applied to judging the memory values ​​of different types of videos. Background technique [0002] The memory of image / video data is a new research direction in the field of digital image / video processing. There are few research results, and they focus on the field of image memory. No research work on video memory has been published yet. [0003] There are not many methods for image memory research. Some existing methods are to first extract the global features of the image (such as SIFT, GIST, HOG, etc.), build a classifier and train the model, and then distinguish a given image. memory. Image memory has many applications. For example, editors can choose images that are easy to remember as the cover of magazines, and advertising designers can choose images that are easy to remember as posters and so on. Therefore, when given an image,...

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Application Information

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IPC IPC(8): G06K9/62G06F17/30
Inventor 韩军伟陈长远郭雷程塨
Owner NORTHWESTERN POLYTECHNICAL UNIV
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