Camera and pressure sensor based cervical spondylopathy identification method

A pressure sensor, camera technology, applied in biometric recognition, character and pattern recognition, instruments, etc., can solve problems such as delay, many targets to be located, and deviation of results.

Active Publication Date: 2016-10-12
WUHAN UNIV
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] (1) Due to the large number of targets to be located, limited by the hardware level, the positioning speed is low, and usually there will be a delay;
[0005] (2) The obvious features in the background as the reference object are generally selected according to the feature value, and it cannot be guaranteed that it must be a still life in the background. If the selected reference object moves during the judgment process, it will cause deviations in the results;
[0006] (3) When the user's head deflects and no longer faces the camera, when the customer's head deflects back again, the judgment will be inaccurate or even impossible
[0007] At present, the above-mentioned problems can be solved by using multiple cameras for omni-directional recognition, but there are problems such as difficult layout and high cost

Method used

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  • Camera and pressure sensor based cervical spondylopathy identification method
  • Camera and pressure sensor based cervical spondylopathy identification method
  • Camera and pressure sensor based cervical spondylopathy identification method

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Embodiment Construction

[0075] The specific implementation of the three technical solutions of the present invention will be described in detail below.

[0076] 1. An image-based motion capture method for judging sitting posture, the specific steps are as follows:

[0077] Step 1, collect training samples.

[0078] The camera is used to collect images of users in different sitting postures as training samples, and the images are above the user's shoulders. In this specific implementation, the collected sitting postures include standard sitting posture, head up, head down, head tilted to the left, head tilted to the right, head away from the camera, and head close to the camera. The sampling frequency is 24 frames per second, and each sitting posture Collect 1000 samples respectively, and the time required for sampling is 8-10 minutes.

[0079] Step 2: Use the training samples collected in step 1 and the sitting postures corresponding to each training sample to train the random forest to obtain a fa...

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Abstract

The invention discloses a camera and pressure sensor based cervical spondylopathy identification method. The method comprises that S1) a camera and a pressure sensor are used to collect test samples of a user in different sitting postures; S2) the test samples are identified by a face classifier and a sitting posture classifier, and accuracies of the face classifier and the sitting posture classifier are obtained; S3) the weights of the face classifier and the sitting posture classifier are adjusted; S4) a present face image and present pressure data of the user are collected; S5) the face classifier identifies the probabilities of different sitting postures according to the present face image, the sitting posture classifier identifies the probabilities of different sitting postures according to the present pressure data, the comprehensive probability of each sitting posture is calculated, and the sitting posture of the highest comprehensive probability is a present sitting posture of the user; and S6) the time lengths of a standard sitting posture and a non-standard sitting posture of the user in a preset period are counted respectively, and the risk of cervical spondylopathy of the user is determined. The neck attitude is determined by combining the face image and body pressure, and the determination precision is improved.

Description

technical field [0001] The invention relates to the technical fields of image recognition and body pressure distribution, in particular to a method for recognizing cervical spondylosis based on a camera and a pressure sensor. Background technique [0002] Cervical spondylosis is a common and extremely harmful chronic disease, and it is very difficult to cure. The emergence of cervical spondylosis is a gradual process. If the prevention and early diagnosis of cervical spondylosis can be carried out through long-term monitoring, patients can see a doctor in time, so that the condition will not be delayed. [0003] In the cervical spondylosis prevention and diagnosis method based on the camera and pressure sensor, it is necessary to judge the head movement based on the image. Image recognition technology is often used to accurately locate the facial features and the obvious features in the background, and through the relationship between the located facial features and the feat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/62G06K9/00
CPCG06V40/161G06V40/10G06V20/52G06F18/253
Inventor 朱卫平尹韶升刘国檩邵泽宇周旺夏天一
Owner WUHAN UNIV
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