US 11,657,540 B2
Compression of ultrasound data in fluid conduits
Steven Wrinch, North Vancouver (CA)
Assigned to DarkVision Technologies Inc, North Vancouver (CA)
Filed by DarkVision Technologies Inc., North Vancouver (CA)
Filed on Jun. 24, 2020, as Appl. No. 16/911,041.
Claims priority of application No. 1909053.9 (GB), filed on Jun. 24, 2019.
Prior Publication US 2020/0402262 A1, Dec. 24, 2020
Int. Cl. G06T 9/00 (2006.01); G06T 7/62 (2017.01); G06T 5/00 (2006.01)
CPC G06T 9/00 (2013.01) [G06T 5/00 (2013.01); G06T 7/62 (2017.01); G06T 2207/10016 (2013.01); G06T 2207/10072 (2013.01); G06T 2207/10132 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method of imaging a cylindrical fluid conduit, comprising:
deploying and moving an ultrasound imaging device through the conduit, the device comprising a radial array of ultrasound transducers;
capturing cross-sectional slices of the conduit using the radial array to create frames having plural scan lines;
determining a speed of sound of a fluid in the conduit;
applying a demodulation process and spatial conversion process to the scan lines; wherein the spatial conversion process creates a spatial pixel from one or more samples in the scan line using the determined speed of sound;
creating an uncompressed ultrasound image comprising the demodulated, spatially converted scan lines; and
applying video compression to the ultrasound image to return compressed images.