Device, system and method for image segmentation of an image of a scene including a subject
An image segmentation and image technology, which is applied in image analysis, image enhancement, image data processing, etc., can solve the problems of not being able to use visible spectral reflection differences, color change disappearance, etc.
Pending Publication Date: 2021-01-29
KONINKLJIJKE PHILIPS NV
View PDF11 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Since patient monitoring preferably works in total darkness, differences in reflectance across the visible spectrum cannot be exploited
On the other hand, if the patient suffers a heart attack, the heart-induced color changes may disappear
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0054] figure 1 A schematic diagram of an embodiment of a system 100 according to the invention is shown. System 100 includes imaging unit 110 that receives electromagnetic radiation reflected from a skin area of subject 120 . The system 100 also includes a device 130 for image segmentation of an image of a scene including a subject and optionally for determining at least one vital sign of the subject from received electromagnetic radiation. The subject 120 (in this example, a patient) is lying on a bed 125, for example in a hospital or other healthcare facility, but could also be a newborn or premature baby, for example, lying in an incubator, or at home or in a different environment people.
[0055]The system 100 may further comprise a light source 140 (also referred to as an illumination unit), such as a light bulb, for illuminating the scene with unpolarized electromagnetic radiation or with polarized electromagnetic radiation (light). The scene includes regions of in...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The present invention relates to a device, system and method for image segmentation of an image of a scene including a subject. To improve the segmentation, the device comprises a receiver (210) configured to receive electromagnetic radiation reflected from a scene including a subject, a polarization unit (220) configured to apply a first polarization on the received electromagnetic radiation to generate first polarized radiation and to apply a second polarization, which is different from the first polarization, on the received electromagnetic radiation to generate second polarized radiation,a sensor unit (230) configured to generate a first image from the first polarized radiation and a second image from the second polarized radiation, and a segmentation unit (250) configured to identifyareas of different materials in the scene from a combination of the first and second images. Further, a vital sign determination unit (240) is provided that is configured to select an area representing skin of the subject, to generate a first detection signal having a first polarization direction from the first polarized radiation in the selected area and a second detection signal having a secondpolarization direction, which is different from the first polarization direction, from the second polarized radiation in the selected area, and to determine a vital sign from the two detection signals by combining the two detection signals.
Description
technical field [0001] The present invention relates to a device, system and method for image segmentation of an image of a scene comprising an object. The invention can be used in particular as a preliminary step for determining at least one vital sign of a subject. Background technique [0002] A person's vital signs such as heart rate (HR), respiration rate (RR) or (peripheral or pulsatile) oxygen saturation (SpO2; which provides an estimate of arterial oxygen saturation SaO2) are used as indicators of the person's current state and Used as a favorable predictor of serious medical events. For this reason, vital signs are widely monitored in inpatient and outpatient care settings, at home or further in health, leisure and fitness settings. [0003] One way of measuring vital signs is plethysmography. Plethysmography generally involves the measurement of volume changes of an organ or body part, and in particular the detection of volume changes due to cardiovascular (or c...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/00A61B5/107
CPCA61B5/0059A61B5/0077A61B5/1079A61B5/444A61B5/7264G16H50/20G06T7/11G06T7/174A61B5/0082A61B5/441G06T2207/30088
Inventor G·德哈恩王文锦
Owner KONINKLJIJKE PHILIPS NV