US 12,299,947 B2
Biological sample analysis device
Mayu Sao, Tokyo (JP); Hirofumi Inomata, Tokyo (JP); and Fumiyasu Sato, Tokyo (JP)
Assigned to HITACHI HIGH-TECH CORPORATION, Tokyo (JP)
Appl. No. 17/913,565
Filed by HITACHI HIGH-TECH CORPORATION, Tokyo (JP)
PCT Filed Feb. 8, 2021, PCT No. PCT/JP2021/004491
§ 371(c)(1), (2) Date Sep. 22, 2022,
PCT Pub. No. WO2021/205737, PCT Pub. Date Oct. 14, 2021.
Claims priority of application No. 2020-070213 (JP), filed on Apr. 9, 2020.
Prior Publication US 2023/0097384 A1, Mar. 30, 2023
Int. Cl. G06V 10/22 (2022.01); G01N 21/03 (2006.01); G01N 21/27 (2006.01); G01N 35/00 (2006.01); G06T 5/80 (2024.01); G06T 7/73 (2017.01); G06T 7/90 (2017.01); G06V 10/26 (2022.01); G06V 10/56 (2022.01); G06V 10/60 (2022.01); G06V 10/75 (2022.01); G06V 10/764 (2022.01)
CPC G06V 10/22 (2022.01) [G01N 21/03 (2013.01); G01N 21/27 (2013.01); G01N 35/00732 (2013.01); G06T 5/80 (2024.01); G06T 7/74 (2017.01); G06T 7/90 (2017.01); G06V 10/267 (2022.01); G06V 10/56 (2022.01); G06V 10/60 (2022.01); G06V 10/759 (2022.01); G06V 10/764 (2022.01); G06T 2207/10024 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A biological specimen analysis device for analyzing a biological specimen contained in a biological sample tube to which a label is attached, the biological specimen analysis device comprising:
a rotation mechanism configured to grip and rotate the biological sample tube;
a camera configured to acquire a two-dimensional color image by capturing an image of the biological sample tube; and
a processor configured to process the two-dimensional color image, wherein
the processor cuts out a partial region in the two-dimensional color image,
the processor synthesizes a developed view of the biological sample tube by connecting an image of the cut-out partial region along a circumferential direction of the biological sample tube, and
the processor extracts a detection target region as a detection target in the two-dimensional color image from the developed view, and
the processor cuts out, as the partial region, a portion of the two-dimensional color image in which variation in a brightness value along the circumferential direction of the biological sample tube is within a predetermined range to keep the variance of the brightness value in the developed view within an allowable range.