Medical imaging device provided with biological signal processing system, medical imaging system, and biological signal processing method
A camera device, technology for medical images, applied in the direction of measuring devices, radio wave measuring systems, applications, etc.
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Embodiment approach 1
[0041] In the present embodiment, the sensor of the biological signal measurement device 200 is a single camera, acquires a video signal as a one-dimensional biological information signal, and calculates a position representing an optical flow obtained from the image as a two-dimensional biological information signal changing signal. The overall structure of the device and figure 1 The structure shown is the same. exist image 3 Details of the signal analysis unit 310 are shown. exist image 3 , with figure 1 Elements shown Elements of the same function are indicated with the same reference numerals.
[0042] As shown in the figure, the signal analysis unit 310 includes an optical flow calculation unit 311A as a figure 1 The biometric information calculation unit 311 receives the video signal (one-dimensional biometric information signal) from the sensor (camera) 210, calculates the optical flow from the image data of two or more temporally adjacent frames, and calcula...
Embodiment approach 2
[0067] In the first embodiment, the optical flow was calculated using the video signal from the camera, the optical flow was analyzed, and the region of interest was selected, but in the present embodiment, a stereo camera is used, and the camera to The distance of the subject is analyzed, and the region of interest is selected.
[0068] In this embodiment, the structure of the signal processing device 300 is image 3 Except that the optical flow calculation unit 311A of the Image 6 The order shown is the same. Hereinafter, the difference from Embodiment 1 will be mainly described.
[0069] If the body axis direction of the subject is the Y direction, and the left-right direction orthogonal thereto is the X direction, the stereo camera 220 is as follows Figure 10 As shown, the left and right cameras are arranged in the chamber so as to be lined up in the X direction.
[0070] The signal analysis unit 310 (distance calculation unit) receives the video signal of the left...
Embodiment approach 3
[0081] The biological signal processing system of the present embodiment is characterized in that it also responds to the movement of the subject and abnormal situations that occur suddenly, other than respiratory motion and pulsation. As a method of acquiring a biological signal, any of the methods of the above-described embodiments may be employed. The signal processing device 300 (signal analysis unit 310 ) of the present embodiment is as follows Figure 11 An abnormal signal detection unit 314 is added as shown. other structures with image 3 (or its modification) is the same.
[0082] The following references Figure 12 The operation of the biological signal processing system in this embodiment will be described with reference to the flowchart. exist Figure 12 , will be with Image 6 Processes of the same contents are indicated by the same reference numerals, and overlapping descriptions are omitted.
[0083] In the embodiment, biometric information is acquired fr...
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