Terumo Bct, Inc.

Aditya Dalvi

Jeremy P Kolenbrander

William Sweat

Christopher Fletcher

John R Linder

John R Lindner

A centrifuge for separating blood having a camera observing fluid flow, and a controller controlling the flow. The location of an interface is detected by image processing steps, which may comprise the steps of 'spoiling' the image, 'diffusing' the image, &#x201c;edge detection&#x201d;, &#x201c;edge linking&#x201d;, &#x201c;region-based confirmation&#x201d;, and &#x201c;interface calculation&#x201d;. &#x201c;Spoiling&#x201d; reduces the number of pixels to be examined preferentially on orthogonal axis oriented with respect to the expected location of the interface or phase boundary. &#x201c;Diffusing&#x201d; smoothes out small oscillations in the interface boundary, making the location of the interface more distinct. &#x201c;Edge detection&#x201d; computes the rate of change in pixel intensity. &#x201c;Edge linking&#x201d; connects adjacent maxima. &#x201c;Region-based confirmation&#x201d; creates a pseudo image of the regions that qualify as distinct. &#x201c;Final edge calculation&#x201d; uses the points where the shade changes in the pseudo image, averages the radial displacement of these points for the interface position.

Blood processing apparatus with robust automated process control

A centrifuge for separating blood having a camera observing fluid flow, and a controller controlling the flow. The location of an interface is detected by image processing steps, which may comprise the steps of 'spoiling' the image, 'diffusing' the image, &#x201c;edge detection&#x201d;, &#x201c;edge linking&#x201d;, &#x201c;region-based confirmation&#x201d;, and &#x201c;interface calculation&#x201d;. &#x201c;Spoiling&#x201d; reduces the number of pixels to be examined preferentially on orthogonal axis oriented with respect to the expected location of the interface or phase boundary. &#x201c;Diffusing&#x201d; smoothes out small oscillations in the interface boundary, making to the location of the interface more distinct. &#x201c;Edge detection&#x201d; computes the rate of change in pixel intensity. &#x201c;Edge linking&#x201d; connects adjacent maxima. &#x201c;Region-based confirmation&#x201d; creates a pseudo image of the regions that qualify as distinct. &#x201c;Final edge calculation&#x201d; uses the points where the shade changes in the pseudo image, averages the radial displacement of these points for the interface position.

A centrifuge for separating blood having a camera observing fluid flow, and a controller controlling the flow. The location of an interface is detected by image processing steps, which may comprise the steps of 'spoiling' the image, 'diffusing' the image, &#x201c;edge detection&#x201d;, &#x201c;edge linking&#x201d;, &#x201c;region-based confirmation&#x201d;, and &#x201c;interface calculation&#x201d;. &#x201c;Spoiling&#x201d; reduces the number of pixels to be examined preferentially on orthogonal axis oriented with respect to the expected location of the interface or phase boundary. &#x201c;Diffusing&#x201d; smoothes out small oscillations in the interface boundary, making the location of the interface more distinct. &#x201c;Edge detection&#x201d; computes the rate of change in pixel intensity, or. &#x201c;Edge linking&#x201d; connects adjacent maxima. &#x201c;Region-based confirmation&#x201d; creates a pseudo image of the regions that qualify as distinct. &#x201c;Final edge calculation&#x201d; uses the points where the shade changes in the pseudo image, averages the radial displacement of these points for the interface position.

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Highlands Ranch, CO, United States of America

Aditya Dalvi