US 12,243,244 B2
Image processing apparatus, image processing method, learning apparatus, learning method and recording medium
Hideaki Sato, Tokyo (JP); and Kyota Higa, Tokyo (JP)
Assigned to NEC CORPORATION, Tokyo (JP)
Appl. No. 17/785,129
Filed by NEC Corporation, Tokyo (JP)
PCT Filed Dec. 27, 2019, PCT No. PCT/JP2019/051515
§ 371(c)(1), (2) Date Jun. 14, 2022,
PCT Pub. No. WO2021/131039, PCT Pub. Date Jul. 1, 2021.
Prior Publication US 2023/0011679 A1, Jan. 12, 2023
Int. Cl. G06T 7/246 (2017.01); G06T 7/215 (2017.01); G06T 7/254 (2017.01); G06T 7/60 (2017.01)
CPC G06T 7/248 (2017.01) [G06T 7/215 (2017.01); G06T 7/251 (2017.01); G06T 7/60 (2013.01); G06T 2207/20081 (2013.01)] 12 Claims
OG exemplary drawing
 
8. An image processing method, comprising:
extracting each foreground from input images, and generating a foreground extraction result;
tracking each foreground based on the foreground extraction result, and extracting a movement trajectory feature of each foreground;
extracting an area variation feature representing a temporal area variation of each foreground; and
estimating a center of each foreground using the movement trajectory feature and the area variation feature of the foreground.