Image description method based on convolution cyclic hybrid model

A technology of cyclic mixing and image description, applied in neural learning methods, biological neural network models, special data processing applications, etc., can solve problems such as inability to describe content

Inactive Publication Date: 2016-09-14
BEIJING UNIV OF TECH
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Problems solved by technology

[0003] There have been many methods for image description. However, these models oft...

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  • Image description method based on convolution cyclic hybrid model
  • Image description method based on convolution cyclic hybrid model
  • Image description method based on convolution cyclic hybrid model

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Embodiment Construction

[0055] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation examples.

[0056] Flowchart of image description methods applied in machine vision and natural language processing. Such as figure 1 shown.

[0057] It is characterized in that it comprises the following steps:

[0058] Step 1, encode the image, the specific steps are as follows:

[0059] Step 1.1, feature extraction is carried out to image with convolutional neural network, adopted VGG network structure, this network carries out parameter learning on ImageNet data set; Input a training image I t , through the network for feature extraction, and finally get a feature vector F with a size of 4096 t ;

[0060] Step 1.2, through a 4096*256 mapping matrix W e For the extracted feature vector F t Encoding is performed, and a vector v of size 256 is obtained after encoding:

[0061] v=F t T W e +b m (1)

[0062] where W e is a mapping...

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Abstract

The present invention discloses an image description method based on a convolution cyclic hybrid model, and belongs to the deep learning field of machine learning. For text description, due to the fact that words in sentences have strong context relationships, text data can be encoded by using a language model. The image description method specifically comprises the steps of (1) extracting image characteristics; (2) encoding the image characteristics; (3) encoding image description texts; (4) training the model; and (5) generating image text description by utilization of the trained model. The image description method is widely used in machine vision and natural language processing, and new thought and solutions are provided in an image description method aspect. At present, in image description, text encoding is randomly generated, which has a certain blindness, and the effect is not good. The texts are encoded by utilization of word2Vec, the encoding problem of the description texts in image description is solved, and the defects of randomness, blindness and instability are remedied. Application ability of the image description is largely increased, and foundation is established for development of machine vision.

Description

technical field [0001] The invention belongs to the deep learning part in machine learning. The specific content is the methods applied in the fields of computer vision, natural language processing and image description. Background technique [0002] With the growth of the scale of the Internet and digital information resources, the amount of information has increased exponentially, and the field of information services is facing the dilemma of "rich information, but difficult to obtain useful information". Especially since the 21st century, digital image resources have grown exponentially, causing users to encounter great difficulties in image retrieval in massive image databases, making useful images unable to be corrected within an effective time in massive images. retrieved. In ILSVRC2012, Alex Krizhevsky proposed a five-layer neural network referred to as AlexNet. This network is very complex with 60 million parameters. Finally, AlexNet won the first place in the comp...

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Application Information

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IPC IPC(8): G06F17/30G06N3/08
CPCG06F16/5866G06N3/084
Inventor 李玉鑑丁勇刘兆英
Owner BEIJING UNIV OF TECH
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