WO2021017307A1 - 非接触性心率检测方法、系统、设备及存储介质 - Google Patents
非接触性心率检测方法、系统、设备及存储介质 Download PDFInfo
- Publication number
- WO2021017307A1 WO2021017307A1 PCT/CN2019/118082 CN2019118082W WO2021017307A1 WO 2021017307 A1 WO2021017307 A1 WO 2021017307A1 CN 2019118082 W CN2019118082 W CN 2019118082W WO 2021017307 A1 WO2021017307 A1 WO 2021017307A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- channel
- frequency
- target
- pulse wave
- image
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
- A61B5/024—Measuring pulse rate or heart rate
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
- A61B5/024—Measuring pulse rate or heart rate
- A61B5/02444—Details of sensor
Definitions
- the embodiments of the present application relate to the field of heart rate measurement, and in particular, to a non-contact heart rate detection method, system, device, and storage medium.
- Heart rate refers to the number of heartbeats per minute, which is one of the important parameters of human metabolism and functional activities. For example, the increase in resting heart rate is widely regarded as an independent risk factor for the detection of cardiovascular disease. Routine testing of resting heart rate is beneficial to the prevention and rehabilitation of cardiovascular diseases.
- HR heart rate
- RR respiratory rate
- HR variability HR variability
- HRV Heart rate variability
- the purpose of the embodiments of the present application is to provide a non-contact heart rate detection method, system, device, and storage medium, which can make the calculation of the heart rate value and the absolute value of the true heart rate error within 3, thereby improving the accuracy of detection .
- an embodiment of the present application provides a non-contact heart rate detection method, including:
- the heart rate value is calculated according to the target frequency.
- an embodiment of the present application also provides a non-contact heart rate detection system, including:
- An acquisition module for acquiring multiple frames of face images in the video to be processed
- An extraction module for extracting preset facial regions in the multi-frame face image
- the selection module is used to obtain the pixel value matrix of the R channel, the G channel and the B channel of the preset face area, and select one of the R channel, the G channel and the B channel as the target channel;
- An amplifying module configured to amplify the pixel value matrix corresponding to the target channel through Euler image magnification to obtain a cardiovascular pulse wave sequence
- the analysis module is used to analyze the frequency waveform of the cardiovascular pulse wave sequence, and select the frequency value corresponding to the largest peak among the peaks of the frequency waveform as the target frequency;
- the calculation module is used to calculate the heart rate value according to the target frequency.
- an embodiment of the present application further provides a computer device, the computer device includes a memory and a processor, the memory stores computer-readable instructions that can run on the processor, and the computer When the readable instructions are executed by the processor, the following steps are implemented:
- the heart rate value is calculated according to the target frequency.
- the embodiments of the present application also provide a non-volatile computer-readable storage medium.
- the non-volatile computer-readable storage medium stores computer-readable instructions, and the computer-readable instructions may Is executed by at least one processor, so that the at least one processor executes the following steps:
- the heart rate value is calculated according to the target frequency.
- the non-contact heart rate detection method, system, device and storage medium provided by the embodiments of the application select the face part from the video, and use Euler image magnification algorithm to magnify the pixel value matrix to obtain the blood vessel pulse wave sequence.
- the waveform of the vascular pulse wave sequence is analyzed, and the heart rate value is finally calculated; the embodiment of the present application can make the calculation of the heart rate and the absolute value of the true heart rate have an error within 3, which improves the accuracy of detection.
- FIG. 1 is a flowchart of Embodiment 1 of a non-contact heart rate detection method according to an embodiment of this application.
- Fig. 2 is a flowchart of step S100 in Fig. 1 of an embodiment of the application.
- Fig. 3 is a flowchart of step S104 in Fig. 1 of the embodiment of the application.
- Fig. 4 is a flowchart of step S104A3 in Fig. 1 of the embodiment of the application.
- Fig. 5 is a flowchart of step S106 in Fig. 1 of the embodiment of the application.
- Fig. 6 is a flowchart of step S106B in Fig. 1 of the embodiment of the application.
- FIG. 7 is a schematic diagram of program modules of Embodiment 2 of the non-contact heart rate detection system according to the embodiment of the application.
- FIG. 8 is a schematic diagram of the hardware structure of the third embodiment of the computer equipment of this application.
- FIG. 1 there is shown a flow chart of the non-contact heart rate detection method in the first embodiment of the present application. It can be understood that the flowchart in this method embodiment is not used to limit the order of execution of the steps.
- the following exemplarily describes the computer device 2 as the execution subject. details as follows.
- Step S100 Obtain multiple frames of face images in the video to be processed.
- step S100 includes:
- Step S100A acquiring the face image information of each frame of image in the video information frame by frame according to time sequence
- Step S100B Count the number of image frames of valid images, where the valid images are one or more images containing face image information in the video information;
- step S100C when the number of image frames of the effective image is greater than a preset threshold, proceed to the next step to stop acquiring the face image information of each frame of the image in the video information.
- the number of image frames of the effective image is greater than the preset threshold, it is preliminarily determined that there is a living body, otherwise it is determined that there is no living body. This step is used to determine whether the user to be tested has entered the shooting range.
- Step S102 Extract a preset face region in the multi-frame face image.
- the nose area and forehead area of the face image information can be selected as the preset face area.
- the nose area and forehead area are richer in capillaries, thus having better heart rate detection. Effective and low noise interference.
- the nose triangle area includes three feature points, and the forehead area includes four feature points.
- the feature points of each area form a topological structure. These topological structures represent the graph model of these areas. Each feature point is the node of these topological structures. These nodes It is mainly extracted and filtered through scale-invariant feature transformation matching algorithm and node position relationship; then, refined feature extraction is performed on each node neighborhood, and the distance between nodes is calibrated, which forms the nose triangle area and forehead The feature point map of the four key areas.
- Step S104 Obtain the pixel value matrix of the R channel, the G channel, and the B channel of the preset face area, and select one of the R channel, the G channel and the B channel as the target channel.
- the area pixel value matrix of each pixel in the preset face area can be obtained through an image algorithm (such as the OpenCV algorithm).
- the preset face area can be 50mm*50mm
- the extracted pixel value matrix can be a 50*50*3 area pixel value matrix.
- Each data in the area pixel value matrix is used to represent the corresponding pixel in a certain channel of each frame The pixel value of the point.
- step S104 includes:
- step S104A the pixel value matrix of each channel of the R channel, the G channel, and the B channel is transformed in the frequency domain through a fast Fourier transform to obtain the channel energy of each channel.
- step S104A further includes:
- Step S104A1 according to obtaining the area pixel value matrix of each of the R channel, G channel, and B channel in each frame;
- Step S104A2 splicing the regional pixel value matrices of each of the R channel, G channel and B channel frame by frame to obtain a pixel value matrix
- Step S104A3 calculate the channel energy of each channel.
- the channel energy represents the change value of the pixel value matrix of each R channel, G channel, and B channel.
- step S104A3 includes:
- the pixel value matrix of each of the R channel, the G channel, and the B channel is transformed into the frequency domain through a fast Fourier transform:
- the pixel value matrix of each channel is represented by x(n), and x(n) is decomposed into the sum of two sequences of even and odd numbers, namely:
- x(n) x 1 (n)+x 2 (n);
- the time length of x 1 (n) and x 2 (n) are both N/2, N represents the time length of each channel selection, x 1 (n) is an even sequence, x 2 (n) is an odd sequence, and then pixel
- the value matrix performs fast Fourier transform operation, and the fast Fourier transform calculation formula is as follows:
- the value of X(k) of each channel is calculated to obtain the channel energy.
- step S104B the channel with the largest energy is selected as the target channel.
- the channel corresponding to the maximum X(k) value is taken as the target channel, which indicates that the change value of the target channel is the largest.
- Step S106 Enlarge the pixel value matrix corresponding to the target channel through Euler image enlargement to obtain a cardiovascular pulse wave sequence.
- the embodiment of the present application amplifies the energy channel of the pixel value matrix of the target channel, and the signal-to-noise ratios of different basebands should be relatively close. Therefore, a Gaussian pyramid can be selected to down-sampling and low-pass filtering the target channel.
- step S106 includes:
- Step S106A spatially filtering the pixel value matrix corresponding to the target channel to obtain basebands of different spatial frequencies, wherein a low-pass filter is used for spatial filtering;
- step S106B the baseband is smoothed and down-sampled according to the Gaussian pyramid to obtain the cardiovascular pulse wave sequence.
- step S106B includes:
- Step S106B1 the first-level Gaussian pyramid obtains the second-level Gaussian image through smoothing and down-sampling, and the cut-off frequency of the Gaussian pyramid gradually increases by a factor of 2 from the upper level to the next level;
- Step S106B2 until the K-1 Gaussian pyramid is smoothed and down-sampling to obtain the K-th Gaussian image, and the cardiovascular pulse wave time sequence is obtained.
- the pixel value matrix of the target channel after the Euler image is enlarged if it is necessary to reconstruct the pixel value matrix of the target channel after the Euler image is enlarged.
- the pixel value matrix of the target channel is regarded as the smallest level of the baseband for down-sampling when the Euler image is enlarged
- the R of the video to be processed The pixel value matrix of each channel in the channel, G channel and B channel can be superimposed to obtain the pixel value matrix of the target channel after Euler image enlargement, which can more obviously display the color change in the video under test.
- Euler image amplification technology helps to reduce noise, and the image shows different signal-to-noise ratios at different spatial frequencies. Generally speaking, the lower the spatial frequency, the higher the signal-to-noise ratio. Therefore, to prevent distortion, these basebands should use different magnifications. For the topmost image, that is, the image with the lowest spatial frequency and the highest signal-to-noise ratio, the maximum magnification can be used, and the magnification of the next layer decreases in turn. Facilitate the approximation of the image signal.
- Step S108 Analyze the frequency waveform of the cardiovascular pulse wave sequence, and select the frequency value corresponding to the largest peak among the peaks of the frequency waveform as the target frequency.
- the frequency waveform of the cardiovascular pulse wave sequence is band-pass filtered, and the frequency range of the human heart rate is selected for band-pass filtering.
- the band-pass filter can be a Butterworth band-pass filter or an ideal band-pass filter. Remove noise and other frequency domain interference to heart rate prediction. Different bandpass filters can be selected according to different needs. If you need to perform subsequent time-frequency analysis of the cardiovascular pulse wave sequence, you can choose the ideal bandpass filter; if you do not need to perform the time-frequency analysis of the cardiovascular pulse wave sequence, you can choose a filter with a wide passband, such as Butterworth Bandpass filter, secondary IIR filter, etc. The ideal low-pass filter is selected for this application.
- step S108 includes:
- the frequency bandwidth 0.4-4Hz (24-240bpm) is selected as the analysis frequency band, and the frequency waveform of the cardiovascular pulse wave sequence is band-pass filtered to obtain the peaks of the frequency waveforms of the cardiovascular pulse wave sequence, wherein the maximum peak value corresponds to The frequency is the target frequency.
- Step S110 calculating a heart rate value according to the target frequency.
- the change of the face color comes from the blood change caused by the heartbeat, which can be measured from the heartbeat. It can be seen from the waveform of the frequency waveform of the vascular pulse wave sequence that the heart rate, the number of heartbeats per minute, is equal to 60 times the target frequency.
- FIG. 7 shows a schematic diagram of the program modules of the second embodiment of the non-contact heart rate detection system of the present application.
- the non-contact heart rate detection system 20 may include or be divided into one or more program modules.
- the one or more program modules are stored in a storage medium and executed by one or more processors.
- the above non-contact heart rate detection method can be realized.
- the program module referred to in the embodiments of the present application refers to a series of computer program instruction segments that can complete specific functions. The following description will specifically introduce the functions of each program module in this embodiment:
- the acquiring module 200 is used to acquire multiple frames of face images in the video to be processed.
- the obtaining module 200 is further used for:
- the next step is to stop acquiring the face image information of each frame of the video information.
- the number of image frames of the effective image is greater than the preset threshold, it is preliminarily determined that there is a living body, otherwise it is determined that there is no living body. This step is used to determine whether the user to be tested has entered the shooting range.
- the extraction module 202 is configured to extract preset facial regions in the multi-frame face image.
- the nose area and forehead area of the face image information can be selected as the preset face area.
- the nose area and forehead area are richer in capillaries, thus having better heart rate detection. Effective and low noise interference.
- the selecting module 204 is configured to obtain the pixel value matrix of the R channel, the G channel, and the B channel of the preset face region, and select one of the R channel, the G channel, and the B channel as the target channel.
- the area pixel value matrix of each pixel in the preset face area can be obtained through an image algorithm (such as the OpenCV algorithm).
- the preset face area can be 50mm*50mm
- the extracted pixel value matrix can be a 50*50*3 area pixel value matrix.
- Each data in the area pixel value matrix is used to represent the corresponding pixel in a certain channel of each frame The pixel value of the point.
- the selection module 204 is also used for:
- the pixel value matrix of each channel of the R channel, the G channel, and the B channel is transformed into the frequency domain through a fast Fourier transform to obtain the channel energy of each channel.
- the channel energy represents the change value of the pixel value matrix of each R channel, G channel, and B channel.
- the pixel value matrix of each of the R channel, the G channel, and the B channel is transformed into the frequency domain through a fast Fourier transform:
- the pixel value matrix of each channel is represented by x(n), and x(n) is decomposed into the sum of two sequences of even and odd numbers, namely:
- x(n) x 1 (n)+x 2 (n);
- the time length of x 1 (n) and x 2 (n) are both N/2, N represents the time length of each channel selection, x 1 (n) is an even sequence, x 2 (n) is an odd sequence, and then the pixel
- the value matrix performs fast Fourier transform operation, and the fast Fourier transform calculation formula is as follows:
- the value of X(k) of each channel is calculated to obtain the channel energy.
- the channel with the largest energy is selected as the target channel, that is, the channel corresponding to the maximum X(k) value is selected as the target channel.
- the magnification module 206 is used to magnify the pixel value matrix corresponding to the target channel through Euler image magnification to obtain a cardiovascular pulse wave sequence.
- the embodiment of the present application amplifies the energy channel of the pixel value matrix of the target channel, and the signal-to-noise ratios of different basebands should be relatively close. Therefore, a Gaussian pyramid can be selected to down-sampling and low-pass filtering the target channel.
- the amplification module 206 is also used for:
- the baseband is smoothed and down-sampled according to the Gaussian pyramid to obtain the cardiovascular pulse wave sequence.
- the first-level Gaussian pyramid obtains the second-level Gaussian image through smoothing and down-sampling, and the cut-off frequency of the Gaussian pyramid gradually increases by a factor of 2 from the upper level to the next level;
- the K level Gaussian image is obtained, and the cardiovascular pulse wave time sequence is obtained.
- the pixel value matrix of the target channel after the Euler image is enlarged if it is necessary to reconstruct the pixel value matrix of the target channel after the Euler image is enlarged.
- the pixel value matrix of the target channel is regarded as the smallest level of the baseband for down-sampling when the Euler image is enlarged
- the R of the video to be processed The pixel value matrix of each channel in the channel, G channel and B channel can be superimposed to obtain the pixel value matrix of the target channel after Euler image enlargement, which can more obviously display the color change in the video under test.
- Euler image amplification technology helps to reduce noise, and the image shows different signal-to-noise ratios at different spatial frequencies. Generally speaking, the lower the spatial frequency, the higher the signal-to-noise ratio. Therefore, to prevent distortion, these basebands should use different magnifications. For the topmost image, that is, the image with the lowest spatial frequency and the highest signal-to-noise ratio, the maximum magnification can be used, and the magnification of the next layer decreases in turn. Facilitate the approximation of the image signal.
- the analysis module 208 is configured to analyze the frequency waveform of the cardiovascular pulse wave sequence, and select the frequency value corresponding to the largest peak among the peaks of the frequency waveform as the target frequency.
- analysis module 208 is further used for:
- the frequency bandwidth 0.4-4Hz (24-240bpm) is selected as the analysis frequency band, and the frequency waveform of the cardiovascular pulse wave sequence is band-pass filtered to obtain the peaks of the frequency waveforms of the cardiovascular pulse wave sequence, wherein the maximum peak value corresponds to The frequency is the target frequency.
- the frequency waveform of the cardiovascular pulse wave sequence is band-pass filtered, and the frequency range of the human heart rate is selected for band-pass filtering.
- the band-pass filter can be a Butterworth band-pass filter or an ideal band-pass filter. Remove noise and other frequency domain interference to heart rate prediction. Different bandpass filters can be selected according to different needs. If you need to perform subsequent time-frequency analysis of the cardiovascular pulse wave sequence, you can choose the ideal bandpass filter; if you do not need to perform the time-frequency analysis of the cardiovascular pulse wave sequence, you can choose a filter with a wide passband, such as Butterworth Bandpass filter, secondary IIR filter, etc. The ideal low-pass filter is selected for this application.
- the calculation module 210 is configured to calculate a heart rate value according to the target frequency.
- the change of the face color comes from the blood change caused by the heartbeat, which can be measured from the heartbeat. It can be seen from the waveform of the frequency waveform of the vascular pulse wave sequence that the heart rate, the number of heartbeats per minute, is equal to 60 times the target frequency.
- the computer device 2 is a device that can automatically perform numerical calculation and/or information processing in accordance with pre-set or stored instructions.
- the computer device 2 may be a rack server, a blade server, a tower server, or a cabinet server (including an independent server, or a server cluster composed of multiple servers).
- the computer device 2 at least includes, but is not limited to, a memory 21, a processor 22, a network interface 23, and a non-contact heart rate detection system 20 that can communicate with each other through a system bus. among them:
- the memory 21 includes at least one type of non-volatile computer-readable storage medium.
- the readable storage medium includes flash memory, hard disk, multimedia card, card-type memory (for example, SD or DX memory, etc.), Random access memory (RAM), static random access memory (SRAM), read only memory (ROM), electrically erasable programmable read only memory (EEPROM), programmable read only memory (PROM), magnetic memory, magnetic disk, optical disk Wait.
- the memory 21 may be an internal storage unit of the computer device 2, such as a hard disk or memory of the computer device 2.
- the memory 21 may also be an external storage device of the computer device 2, for example, a plug-in hard disk, a smart media card (SMC), and a secure digital (Secure Digital, SD card, Flash Card, etc.
- the memory 21 may also include both the internal storage unit of the computer device 2 and its external storage device.
- the memory 21 is generally used to store the operating system and various application software installed in the computer device 2, for example, the program code of the non-contact heart rate detection system 20 in the second embodiment.
- the memory 21 can also be used to temporarily store various types of data that have been output or will be output.
- the processor 22 may be a central processing unit (Central Processing Unit, CPU), a controller, a microcontroller, a microprocessor, or other data processing chips in some embodiments.
- the processor 22 is generally used to control the overall operation of the computer device 2.
- the processor 22 is used to run the program code or process data stored in the memory 21, for example, to run the non-contact heart rate detection system 20 to implement the non-contact heart rate detection method of the first embodiment.
- the network interface 23 may include a wireless network interface or a wired network interface.
- the network interface 23 is generally used to establish a communication connection between the server 2 and other electronic devices.
- the network interface 23 is used to connect the server 2 to an external terminal through a network, and to establish a data transmission channel and a communication connection between the server 2 and the external terminal.
- the network may be Intranet, Internet, Global System of Mobile Communication (GSM), Wideband Code Division Multiple Access (WCDMA), 4G network, 5G Network, Bluetooth (Bluetooth), Wi-Fi and other wireless or wired networks.
- GSM Global System of Mobile Communication
- WCDMA Wideband Code Division Multiple Access
- 4G network Fifth Generation
- 5G Network Fifth Generation
- Bluetooth Bluetooth
- Wi-Fi Wireless Fidelity
- the non-contact heart rate detection system 20 stored in the memory 21 may also be divided into one or more program modules, and the one or more program modules are stored in the memory 21 and configured by One or more processors (the processor 22 in this embodiment) are executed to complete the application.
- FIG. 7 shows a schematic diagram of the program modules of the second embodiment of the non-contact heart rate detection system 20.
- the non-contact heart rate detection system 20 can be divided into an acquisition module 200 and an extraction module 202.
- the selection module 204, the amplification module 206, the analysis module 208, and the calculation module 210 can be divided into an acquisition module 200 and an extraction module 202.
- the selection module 204, the amplification module 206, the analysis module 208, and the calculation module 210 the program module referred to in this application refers to a series of computer program instruction segments that can complete specific functions.
- the specific functions of the program modules 200-210 have been described in detail in the second embodiment, and will not be repeated here.
- This embodiment also provides a non-volatile computer-readable storage medium, such as flash memory, hard disk, multimedia card, card-type memory (for example, SD or DX memory, etc.), random access memory (RAM), static random access memory ( SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM), magnetic memory, magnetic disk, optical disk, server, App application mall, etc., on which storage There are computer-readable instructions, and the corresponding functions are realized when the program is executed by the processor.
- the non-volatile computer-readable storage medium of this embodiment is used to store the non-contact heart rate detection system 20, and when executed by the processor, the following steps are implemented:
- the heart rate value is calculated according to the target frequency.
- the channel with the largest energy is selected as the target channel.
- the non-contact heart rate detection method, system, device and storage medium provided by the embodiments of the application select the face part from the video, and use Euler image magnification algorithm to magnify the pixel value matrix to obtain the blood vessel pulse wave sequence.
- the waveform of the vascular pulse wave sequence is analyzed, and the heart rate value is finally calculated; the embodiment of the present application can make the calculation of the heart rate and the absolute value of the true heart rate have an error within 3, which improves the accuracy of detection.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Cardiology (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Physiology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
Description
Claims (20)
- 一种非接触性心率检测方法,包括:获取待处理视频中的多帧人脸图像;提取所述多帧人脸图像中的预设面部区域;获取所述预设面部区域的R通道、G通道和B通道的像素值矩阵,并从所述R通道、G通道和B通道中选取其中一个通道作为目标通道;通过欧拉影像放大对所述目标通道对应的像素值矩阵进行放大,以得到心血管脉搏波序列;分析所述心血管脉搏波序列的频率波形,选取所述频率波形的各个波峰中的最大波峰所对应的频率值作为目标频率;根据所述目标频率计算得到心率值。
- 根据权利要求1所述的非接触性心率检测方法,获取所述预设面部区域的R通道、G通道和B通道的像素值矩阵,并从所述R通道、G通道和B通道中选取其中一个通道作为目标通道的步骤,包括:将所述R通道、G通道和B通道中各个通道的像素值矩阵通过快速傅里叶变换做频域变换以得到各个通道的通道能量;选择能量最大的通道作为所述目标通道。
- 根据权利要求1所述的非接触性心率检测方法,通过欧拉影像放大对所述目标通道对应的像素值矩阵进行放大,以得到心血管脉搏波序列的步骤,包括:将所述目标通道对应的像素值矩阵进行空间滤波,以得到不同的空间频率的基带,其中,采用低通滤波器进行空间滤波;根据高斯金字塔对所述基带进行平滑与下采样得到所述心血管脉搏波序列。
- 根据权利要求3所述的非接触性心率检测方法,根据高斯金字塔对所述基带进行平滑与下采样得到所述心血管脉搏波序列的步骤,包括:第一层高斯金字塔通过平滑与下采样获得二层高斯图像,高斯金字塔的截 至频率从上一层到下一层以因子2逐渐增加;直至第K-1层高斯金字塔通过平滑与下采样获得第K层高斯图像,得到所述心血管脉搏波时间序列。
- 根据权利要求1所述的非接触性心率检测方法,分析所述心血管脉搏波序列的频率波形,选取所述频率波形的各个波峰中的最大波峰所对应的频率值作为目标频率的步骤,包括:选择频率带宽0.4~4Hz作为分析频段,将所述心血管脉搏波序列的频率波形进行带通滤波得到所述心血管脉搏波序列的频率波形的波峰,其中波峰峰值最大对应的频率为所述目标频率。
- 根据权利要求1所述的非接触性心率检测方法,获取待处理视频信息中的多帧人脸图像信息的步骤,包括:依据时间顺序逐帧获取所述视频信息中的每帧图像的人脸图像信息;统计有效图像的图像帧数,所述有效图像为所述视频信息中含人脸图像信息的一个或多个图像;当所述有效图像的图像帧数大于预设阈值时,则停止获取所述视频信息中的每帧图像的人脸图像信息。
- 一种非接触性心率检测系统,包括:获取模块,用于获取待处理视频中的多帧人脸图像;提取模块,用于提取所述多帧人脸图像中的预设面部区域;选取模块,用于获取所述预设面部区域的R通道、G通道和B通道的像素值矩阵,并从所述R通道、G通道和B通道中选取其中一个通道作为目标通道;放大模块,用于通过欧拉影像放大对所述目标通道对应的像素值矩阵进行放大,以得到心血管脉搏波序列;分析模块,用于分析所述心血管脉搏波序列的频率波形,选取所述频率波形的各个波峰中的最大波峰所对应的频率值作为目标频率;计算模块,用于根据所述目标频率计算得到心率值。
- 根据权利要求7所述的非接触性心率检测系统,所述获取模块还用于:依据时间顺序逐帧获取所述视频信息中的每帧图像的人脸图像信息;统计有效图像的图像帧数,所述有效图像为所述视频信息中含人脸图像信息的一个或多个图像;当所述有效图像的图像帧数大于预设阈值时,则停止获取所述视频信息中的每帧图像的人脸图像信息。
- 根据权利要求7所述的非接触性心率检测系统,所述选取模块还用于:将所述R通道、G通道和B通道中各个通道的像素值矩阵通过快速傅里叶变换做频域变换以得到各个通道的通道能量;选择能量最大的通道作为所述目标通道。
- 根据权利要求7所述的非接触性心率检测系统,所述放大模块还用于:将所述目标通道对应的像素值矩阵进行空间滤波,以得到不同的空间频率的基带,其中,采用低通滤波器进行空间滤波;根据高斯金字塔对所述基带进行平滑与下采样得到所述心血管脉搏波序列。
- 根据权利要求10所述的非接触性心率检测系统,所述放大模块还用于:第一层高斯金字塔通过平滑与下采样获得二层高斯图像,高斯金字塔的截至频率从上一层到下一层以因子2逐渐增加;直至第K-1层高斯金字塔通过平滑与下采样获得第K层高斯图像,得到所述心血管脉搏波时间序列。
- 根据权利要求7所述的非接触性心率检测系统,所述分析模块还用于:选择频率带宽0.4~4Hz作为分析频段,将所述心血管脉搏波序列的频率波形进行带通滤波得到所述心血管脉搏波序列的频率波形的波峰,其中波峰峰值最大对应的频率为所述目标频率。
- 一种计算机设备,所述计算机设备包括存储器、处理器,所述存储器上存储有可在所述处理器上运行的计算机可读指令,所述计算机可读指令被所述处理器执行时实现以下步骤:获取待处理视频中的多帧人脸图像;提取所述多帧人脸图像中的预设面部区域;获取所述预设面部区域的R通道、G通道和B通道的像素值矩阵,并从所述R通道、G通道和B通道中选取其中一个通道作为目标通道;通过欧拉影像放大对所述目标通道对应的像素值矩阵进行放大,以得到心血管脉搏波序列;分析所述心血管脉搏波序列的频率波形,选取所述频率波形的各个波峰中的最大波峰所对应的频率值作为目标频率;根据所述目标频率计算得到心率值。
- 根据权利要求13所述的计算机设备,所述计算机可读指令被所述处理器执行时实现以下步骤:依据时间顺序逐帧获取所述视频信息中的每帧图像的人脸图像信息;统计有效图像的图像帧数,所述有效图像为所述视频信息中含人脸图像信息的一个或多个图像;当所述有效图像的图像帧数大于预设阈值时,则停止获取所述视频信息中的每帧图像的人脸图像信息。
- 根据权利要求13所述的计算机设备,所述计算机可读指令被所述处理器执行时实现以下步骤:将所述R通道、G通道和B通道中各个通道的像素值矩阵通过快速傅里叶变换做频域变换以得到各个通道的通道能量;选择能量最大的通道作为所述目标通道。
- 根据权利要求13所述的计算机设备,所述计算机可读指令被所述处理器执行时实现以下步骤:将所述目标通道对应的像素值矩阵进行空间滤波,以得到不同的空间频率的基带,其中,采用低通滤波器进行空间滤波;根据高斯金字塔对所述基带进行平滑与下采样得到所述心血管脉搏波序列。
- 根据权利要求16所述的计算机设备,所述计算机可读指令被所述处理器执行时实现以下步骤:第一层高斯金字塔通过平滑与下采样获得二层高斯图像,高斯金字塔的截 至频率从上一层到下一层以因子2逐渐增加;直至第K-1层高斯金字塔通过平滑与下采样获得第K层高斯图像,得到所述心血管脉搏波时间序列。
- 根据权利要求13所述的计算机设备,所述计算机可读指令被所述处理器执行时实现以下步骤:选择频率带宽0.4~4Hz作为分析频段,将所述心血管脉搏波序列的频率波形进行带通滤波得到所述心血管脉搏波序列的频率波形的波峰,其中波峰峰值最大对应的频率为所述目标频率。
- 一种非易失性计算机可读存储介质,所述非易失性计算机可读存储介质内存储有计算机可读指令,所述计算机可读指令可被至少一个处理器所执行,以使所述至少一个处理器执行以下步骤:获取待处理视频中的多帧人脸图像;提取所述多帧人脸图像中的预设面部区域;获取所述预设面部区域的R通道、G通道和B通道的像素值矩阵,并从所述R通道、G通道和B通道中选取其中一个通道作为目标通道;通过欧拉影像放大对所述目标通道对应的像素值矩阵进行放大,以得到心血管脉搏波序列;分析所述心血管脉搏波序列的频率波形,选取所述频率波形的各个波峰中的最大波峰所对应的频率值作为目标频率;根据所述目标频率计算得到心率值。
- 根据权利要求19所述的非易失性计算机可读存储介质,所述计算机可读指令被所述处理器执行时还实现以下步骤:将所述R通道、G通道和B通道中各个通道的像素值矩阵通过快速傅里叶变换做频域变换以得到各个通道的通道能量;选择能量最大的通道作为所述目标通道。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910699269.6 | 2019-07-31 | ||
| CN201910699269.6A CN110547783B (zh) | 2019-07-31 | 2019-07-31 | 非接触性心率检测方法、系统、设备及存储介质 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2021017307A1 true WO2021017307A1 (zh) | 2021-02-04 |
Family
ID=68736860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2019/118082 Ceased WO2021017307A1 (zh) | 2019-07-31 | 2019-11-13 | 非接触性心率检测方法、系统、设备及存储介质 |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110547783B (zh) |
| WO (1) | WO2021017307A1 (zh) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112965060A (zh) * | 2021-02-19 | 2021-06-15 | 加特兰微电子科技(上海)有限公司 | 生命特征参数的检测方法、装置和检测体征点的方法 |
| CN113842128A (zh) * | 2021-09-29 | 2021-12-28 | 北京清智图灵科技有限公司 | 一种基于多重滤波与混合放大的非接触心率检测装置 |
| CN113989880A (zh) * | 2021-10-18 | 2022-01-28 | 浙江大学 | 基于人脸视频的人体心率测量方法 |
| CN114469036A (zh) * | 2022-01-27 | 2022-05-13 | 无锡博奥玛雅医学科技有限公司 | 一种基于视频图像的远程心率监测方法及系统 |
| CN114983415A (zh) * | 2022-05-12 | 2022-09-02 | 华南理工大学 | 基于面部视频的工作记忆负荷水平识别方法 |
| CN115205270A (zh) * | 2022-07-25 | 2022-10-18 | 哈尔滨工业大学 | 基于图像处理的非接触式血氧饱和度检测方法及系统 |
| CN115462800A (zh) * | 2021-06-11 | 2022-12-13 | 广州视源电子科技股份有限公司 | 一种心电信号特征波形检测方法、装置、设备及存储介质 |
| CN115919277A (zh) * | 2022-12-06 | 2023-04-07 | 浙江大学 | 一种基于温度阈值的心率检测方法 |
| CN116077062A (zh) * | 2023-04-10 | 2023-05-09 | 中国科学院自动化研究所 | 心理状态感知方法及系统、可读存储介质 |
| CN116758066A (zh) * | 2023-08-14 | 2023-09-15 | 中国科学院长春光学精密机械与物理研究所 | 一种非接触测量心率方法、设备及介质 |
| CN117158926A (zh) * | 2023-09-21 | 2023-12-05 | 安徽大学 | 一种长距离非接触式的生理参数的检测方法、系统、装置 |
| CN117694845A (zh) * | 2024-02-06 | 2024-03-15 | 北京科技大学 | 基于融合特征增强的非接触式生理信号检测方法及装置 |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111166313A (zh) * | 2019-12-26 | 2020-05-19 | 中国电子科技集团公司电子科学研究院 | 一种心率测量方法、装置及可读存储介质 |
| CN111510768B (zh) * | 2020-04-26 | 2022-01-04 | 梁华智能科技(上海)有限公司 | 一种视频流的生命体征数据计算方法、设备及介质 |
| TWI742696B (zh) * | 2020-05-28 | 2021-10-11 | 國立臺灣科技大學 | 多參數生理訊號量測方法 |
| CN114581358B (zh) * | 2020-11-30 | 2025-07-25 | 华为技术有限公司 | 心率检测方法及电子设备 |
| CN112580612B (zh) * | 2021-02-22 | 2021-06-08 | 中国科学院自动化研究所 | 一种生理信号预测方法 |
| CN113951816B (zh) * | 2021-09-07 | 2024-04-12 | 广东省科学院健康医学研究所 | 基于光学视频信号分析的无创血管功能检测装置 |
| CN113940632A (zh) * | 2021-10-19 | 2022-01-18 | 展讯通信(天津)有限公司 | 健康指标检测方法和设备 |
| CN114724068A (zh) * | 2022-04-07 | 2022-07-08 | 中广核核电运营有限公司 | 人员状态监测方法、装置、设备、存储介质及程序产品 |
| CN114943732B (zh) * | 2022-07-01 | 2024-07-16 | 上海商汤临港智能科技有限公司 | 一种心率检测方法、装置、设备和存储介质 |
| CN116019435B (zh) * | 2022-12-27 | 2024-11-05 | 北京镁伽机器人科技有限公司 | 一种类心脏的心率确定方法、装置、电子设备及存储介质 |
| CN119138868A (zh) * | 2023-06-14 | 2024-12-17 | 华为技术有限公司 | 一种血压检测装置 |
| CN116681700B (zh) * | 2023-08-01 | 2023-10-31 | 首都医科大学附属北京天坛医院 | 用户心率和心率变异性的评估方法、装置和可读储存介质 |
| CN119157504A (zh) * | 2024-08-28 | 2024-12-20 | 中国人民解放军总医院 | 非接触式心率和呼吸率检测方法和装置 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130096439A1 (en) * | 2011-10-14 | 2013-04-18 | Industrial Technology Research Institute | Method and system for contact-free heart rate measurement |
| CN107529646A (zh) * | 2017-05-02 | 2018-01-02 | 广东工业大学 | 一种基于欧拉影像放大的无接触式心率测量方法及装置 |
| CN109044322A (zh) * | 2018-08-29 | 2018-12-21 | 北京航空航天大学 | 一种非接触式心率变异性测量方法 |
| CN109259749A (zh) * | 2018-08-29 | 2019-01-25 | 南京邮电大学 | 一种基于视觉摄像头的非接触式心率测量方法 |
| CN109523545A (zh) * | 2018-11-28 | 2019-03-26 | 荆门博谦信息科技有限公司 | 一种非接触式心率检测方法及系统 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110251493A1 (en) * | 2010-03-22 | 2011-10-13 | Massachusetts Institute Of Technology | Method and system for measurement of physiological parameters |
| EP3495994A1 (en) * | 2017-12-05 | 2019-06-12 | Tata Consultancy Services Limited | Face video based heart rate monitoring using pulse signal modelling and tracking |
| CN109009052A (zh) * | 2018-07-02 | 2018-12-18 | 南京工程学院 | 基于视觉的嵌入式心率测量系统及其测量方法 |
-
2019
- 2019-07-31 CN CN201910699269.6A patent/CN110547783B/zh active Active
- 2019-11-13 WO PCT/CN2019/118082 patent/WO2021017307A1/zh not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130096439A1 (en) * | 2011-10-14 | 2013-04-18 | Industrial Technology Research Institute | Method and system for contact-free heart rate measurement |
| CN107529646A (zh) * | 2017-05-02 | 2018-01-02 | 广东工业大学 | 一种基于欧拉影像放大的无接触式心率测量方法及装置 |
| CN109044322A (zh) * | 2018-08-29 | 2018-12-21 | 北京航空航天大学 | 一种非接触式心率变异性测量方法 |
| CN109259749A (zh) * | 2018-08-29 | 2019-01-25 | 南京邮电大学 | 一种基于视觉摄像头的非接触式心率测量方法 |
| CN109523545A (zh) * | 2018-11-28 | 2019-03-26 | 荆门博谦信息科技有限公司 | 一种非接触式心率检测方法及系统 |
Non-Patent Citations (2)
| Title |
|---|
| CAO JIANJIAN , FENG JUN , TANG WEN-MING , YU YING: "Color Space Selection of Non-contact Heart Rate Measurement", COMPUTER SCIENCE, vol. 44, no. 11A, 30 November 2017 (2017-11-30), pages 260 - 262+301, XP055776450 * |
| LIU, HONGCHENG ET AL: "Video-based Detection of Heart and Respiration Rates During Human Sleep", SCIENCE AND TECHNOLOGY & INNOVATION, no. 5, 31 March 2019 (2019-03-31), pages 1 - 4, XP009525737, DOI: 10.15913/j.cnki.kjycx.2019.05.001 * |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112965060A (zh) * | 2021-02-19 | 2021-06-15 | 加特兰微电子科技(上海)有限公司 | 生命特征参数的检测方法、装置和检测体征点的方法 |
| CN115462800A (zh) * | 2021-06-11 | 2022-12-13 | 广州视源电子科技股份有限公司 | 一种心电信号特征波形检测方法、装置、设备及存储介质 |
| CN113842128B (zh) * | 2021-09-29 | 2023-09-26 | 北京清智图灵科技有限公司 | 一种基于多重滤波与混合放大的非接触心率检测装置 |
| CN113842128A (zh) * | 2021-09-29 | 2021-12-28 | 北京清智图灵科技有限公司 | 一种基于多重滤波与混合放大的非接触心率检测装置 |
| CN113989880A (zh) * | 2021-10-18 | 2022-01-28 | 浙江大学 | 基于人脸视频的人体心率测量方法 |
| CN114469036A (zh) * | 2022-01-27 | 2022-05-13 | 无锡博奥玛雅医学科技有限公司 | 一种基于视频图像的远程心率监测方法及系统 |
| CN114983415A (zh) * | 2022-05-12 | 2022-09-02 | 华南理工大学 | 基于面部视频的工作记忆负荷水平识别方法 |
| CN115205270B (zh) * | 2022-07-25 | 2023-10-24 | 哈尔滨工业大学 | 基于图像处理的非接触式血氧饱和度检测方法及系统 |
| CN115205270A (zh) * | 2022-07-25 | 2022-10-18 | 哈尔滨工业大学 | 基于图像处理的非接触式血氧饱和度检测方法及系统 |
| CN115919277A (zh) * | 2022-12-06 | 2023-04-07 | 浙江大学 | 一种基于温度阈值的心率检测方法 |
| CN116077062A (zh) * | 2023-04-10 | 2023-05-09 | 中国科学院自动化研究所 | 心理状态感知方法及系统、可读存储介质 |
| CN116077062B (zh) * | 2023-04-10 | 2023-06-30 | 中国科学院自动化研究所 | 心理状态感知方法及系统、可读存储介质 |
| CN116758066A (zh) * | 2023-08-14 | 2023-09-15 | 中国科学院长春光学精密机械与物理研究所 | 一种非接触测量心率方法、设备及介质 |
| CN116758066B (zh) * | 2023-08-14 | 2023-11-14 | 中国科学院长春光学精密机械与物理研究所 | 一种非接触测量心率方法、设备及介质 |
| CN117158926A (zh) * | 2023-09-21 | 2023-12-05 | 安徽大学 | 一种长距离非接触式的生理参数的检测方法、系统、装置 |
| CN117694845A (zh) * | 2024-02-06 | 2024-03-15 | 北京科技大学 | 基于融合特征增强的非接触式生理信号检测方法及装置 |
| CN117694845B (zh) * | 2024-02-06 | 2024-04-26 | 北京科技大学 | 基于融合特征增强的非接触式生理信号检测方法及装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110547783A (zh) | 2019-12-10 |
| CN110547783B (zh) | 2022-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2021017307A1 (zh) | 非接触性心率检测方法、系统、设备及存储介质 | |
| WO2021169128A1 (zh) | 眼底视网膜血管识别及量化方法、装置、设备及存储介质 | |
| CN111062963B (zh) | 一种血管提取方法、系统、设备及存储介质 | |
| CN110751636B (zh) | 一种基于改进型编解码网络的眼底图像视网膜动脉硬化检测方法 | |
| EP3453321A1 (en) | Non-invasive method and system for estimating blood pressure from photoplethysmogram using statistical post-processing | |
| Zou et al. | An ultra-low power QRS complex detection algorithm based on down-sampling wavelet transform | |
| CN112634231B (zh) | 一种图像分类方法、装置、终端设备和存储介质 | |
| CN107292835B (zh) | 一种眼底图像视网膜血管自动矢量化的方法及装置 | |
| US12561811B2 (en) | Method and apparatus of nidus segmentation, electronic device, and storage medium | |
| CN111358455A (zh) | 一种多数据源的血压预测方法和装置 | |
| CN106491114B (zh) | 一种心率检测方法及装置 | |
| CN118121176B (zh) | 一种用于无创心排监测的数据分析方法及系统 | |
| CN116196013B (zh) | 心电数据处理方法、装置、计算机设备与存储介质 | |
| CN111915515A (zh) | 超声图像中噪声去除的方法、超声设备及存储介质 | |
| CN115147360B (zh) | 一种斑块分割方法、装置、电子设备及可读存储介质 | |
| CN117357080B (zh) | 近红外光谱信号去噪方法及装置、终端设备、存储介质 | |
| CN110916649B (zh) | 一种长程心电散点图的处理装置、处理方法及检测装置 | |
| CN110874597B (zh) | 一种眼底图像血管特征提取方法、设备、系统和存储介质 | |
| WO2017096597A1 (zh) | 心电信号处理方法及装置 | |
| CN115067967B (zh) | 心拍信号基准点确定方法、心拍类型识别方法及装置 | |
| CN118592919B (zh) | 基于监护仪屏幕波形摄像的医疗辅助监测方法及装置 | |
| JP3647970B2 (ja) | 領域抽出装置 | |
| CN116823752B (zh) | 基于力学参量的脑网络构建方法、系统、介质及设备 | |
| CN111062943B (zh) | 斑块稳定性的确定方法、装置及医疗设备 | |
| CN118229555B (zh) | 一种图像融合方法、装置、设备及计算机可读存储介质 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 19939823 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 19939823 Country of ref document: EP Kind code of ref document: A1 |
|
| 32PN | Ep: public notification in the ep bulletin as address of the adressee cannot be established |
Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205 DATED 08.08.2022) |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 19939823 Country of ref document: EP Kind code of ref document: A1 |