公开(公告)号：US09955880B2

公开(公告)日：2018-05-01

申请号：US14665657

申请日：2015-03-23

Applicant: Tata Consultancy Services Limited

Inventor： Aishwarya Visvanathan ,  Arpan Pal ,  Aniruddha Sinha ,  Rohan Banerjee ,  Anirban Dutta Choudhury ,  Aditi Mishra ,  Avik Ghose

IPC: G06K9/00 ,  A61B5/024 ,  A61B5/1455 ,  A61B5/00

CPC classification number: A61B5/02416 ,  A61B5/0082 ,  A61B5/02438 ,  A61B5/14551 ,  A61B2560/0238

Abstract: A physiological parameter measurement device comprising a processor and a video processing module coupled to the processor to divide each of a plurality of frames of a video into a plurality of blocks, where the video is of a body part of a subject whose physiological parameter is to be determined. The video processing module further is to select a block having highest peak signal to noise ratio (PSNR) from amongst the plurality of blocks. Further, the video processing module is to extract a photoplethysmogram (PPG) signal from the video based on a block identifier associated with the block. The physiological parameter measurement device further comprises a signal enhancement module coupled to the processor, to process the PPG signal to obtain an enhanced PPG signal for determining a value of the physiological parameter for the subject.

公开(公告)号：US20160113531A1

公开(公告)日：2016-04-28

申请号：US14665657

申请日：2015-03-23

Applicant: Tata Consultancy Services Limited

Inventor： Aishwarya Visvanathan ,  Arpan Pal ,  Aniruddha Sinha ,  Rohan Banerjee ,  Anirban Dutta Choudhury ,  Aditi Mishra ,  Avik Ghose

IPC: A61B5/024 ,  A61B5/1455 ,  A61B5/00 ,  A61B5/021

CPC classification number: A61B5/02416 ,  A61B5/0082 ,  A61B5/02438 ,  A61B5/14551 ,  A61B2560/0238

Abstract: A physiological parameter measurement device comprising a processor and a video processing module coupled to the processor to divide each of a plurality of frames of a video into a plurality of blocks, where the video is of a body part of a subject whose physiological parameter is to be determined. The video processing module further is to select a block having highest peak signal to noise ratio (PSNR) from amongst the plurality of blocks. Further, the video processing module is to extract a photoplethysmogram (PPG) signal from the video based on a block identifier associated with the block. The physiological parameter measurement device further comprises a signal enhancement module coupled to the processor, to process the PPG signal to obtain an enhanced PPG signal for determining a value of the physiological parameter for the subject.

Abstract translation: 一种生理参数测量装置，包括处理器和视频处理模块，所述处理器和视频处理模块耦合到所述处理器，以将视频的多个帧中的每一个划分成多个块，其中所述视频是其生理参数为 确定。 视频处理模块还要从多个块中选择具有最高峰值信噪比（PSNR）的块。 此外，视频处理模块基于与该块相关联的块标识符从视频提取光电容积图（PPG）信号。 生理参数测量装置还包括耦合到处理器的信号增强模块，以处理PPG信号以获得用于确定对象的生理参数的值的增强的PPG信号。