NON-TOUCH OPTICAL DETECTION OF VITAL SIGNS FROM AMPLIFIED VISUAL VARIATIONS OF REDUCED IMAGES OF SKIN

摘要

A microprocessor is operably coupled to a camera from which patient vital signs of reduced images of skin are determined. A temporal variation of reduced images of skin from the camera is generated from multiple filters and then amplified from which the patient vital sign, such as heart rate or respiratory rate, can be determined and then displayed or stored.

主权项

1. An apparatus of motion amplification to communicate biological vital signs, the apparatus comprising:
a cropper that is operable to receive at least two images and crop the image to exclude a border area of the images, generating at least two cropped images; a skin-pixel-identifier that is operably coupled to the cropper and that identifies pixel values that are representative of the skin in at least two cropped images; a first frequency filter that is operably coupled to the skin-pixel-identifier and that applies a frequency filter to output of the skin-pixel-identifier; a regional facial clusterial module that is operably coupled to the first frequency filter and that applies spatial clustering to the output of the first frequency filter; a second frequency filter that is operably regional facial clusterial module and that is applied to output of the regional facial clusterial module, generating a temporal variation; a vital-sign generator that is operably coupled to the second frequency filter that generates at least one vital sign from the temporal variation; and a display device that is operably coupled to the vital-sign generator that is operable to display the at least one vital sign.