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Lip cutting method, device and equipment based on coordinate transformation and storage medium

A technology of coordinate transformation and lips, applied in the field of biometrics, can solve the problems affecting the recognition accuracy of lip language recognition algorithm, and achieve the effect of avoiding the loss of head information

Pending Publication Date: 2020-01-31
PING AN TECH (SHENZHEN) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method is simple and fast, there are obvious defects. For example, the distance between the individual and the lens changes at any time. The two can be far and near. The lips will be big or small, which will affect the improvement of the recognition accuracy of the lip language recognition algorithm

Method used

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  • Lip cutting method, device and equipment based on coordinate transformation and storage medium
  • Lip cutting method, device and equipment based on coordinate transformation and storage medium
  • Lip cutting method, device and equipment based on coordinate transformation and storage medium

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Embodiment Construction

[0045] It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0046] The present invention provides a method for cutting lips based on coordinate transformation, which is applied to an electronic device 1 . refer to figure 1 As shown, it is a schematic diagram of the application environment of the preferred embodiment of the lip cutting method based on coordinate transformation of the present invention.

[0047] In this embodiment, the electronic device 1 may be a terminal device with computing functions, such as a server, a smart phone, a tablet computer, a portable computer, a desktop computer, and the like.

[0048] The electronic device 1 includes: a processor 12 , a memory 11 , a network interface 14 and a communication bus 15 .

[0049]The memory 11 includes at least one type of readable storage medium. The at least one type of readable storage medium may be a non...

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Abstract

The invention relates to the technical field of biological recognition, and provides a lip cutting method and device based on coordinate transformation, electronic equipment and a storage medium, andthe method comprises the steps: collecting face information in a video frame through a face recognition engine; acquiring all feature points of the human face based on the human face information, anddetermining lip corner coordinate information and lip center point coordinate information in the human face; normalizing the face calibrated by the face rectangular frame to obtain a face conforming to a preset standard face size and a corresponding face conversion proportionality coefficient; converting the central point coordinate of the lip based on the conversion proportionality coefficient, and obtaining a converted new central point coordinate; determining a rectangular area according to the coordinates of the new central point and preset lip shearing width and height; and cutting out alip area of the face according to the rectangular area. According to the method, the human face in the video is recognized firstly, and then normalization and coordinate conversion processing are carried out on the human face, so that the lip cutting precision can be improved.

Description

technical field [0001] The present invention relates to the technical field of biometric identification, and in particular, to a method, device, electronic device and computer-readable storage medium for lip detection based on coordinate transformation. Background technique [0002] Lip-reading refers to reading or partially reading out what the speaker says by observing the changes of the speaker's lips during pronunciation. The computer lip reading refers to the establishment of a lip reading model and analysis of lip motion parameters in the process of pronunciation, quantitative processing of lip movement information to classify and recognize the sequence images in the video, or to assist speech recognition to improve the speech recognition rate. Research on lip reading will have practical implications for deaf patients, law enforcement agencies, and workers in noisy environments. [0003] At present, cutting the lip information of a face is one of the basic preparation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06V40/168G06V40/20G06V40/172
Inventor 王进陈令刚
Owner PING AN TECH (SHENZHEN) CO LTD
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