发明名称 |
Object tracking method and device |
摘要 |
Disclosed is an object tracking method. The method includes steps of obtaining a first boundary region of a waiting-for-recognition object in the disparity map related to the current frame; calculating a probability of each valid pixel in the first boundary region so as to get a pixel probability map of the waiting-for-recognition object; obtaining historic tracking data of each tracked object, which includes identifier information of the tracked object and a pixel probability map related to each of one or more prior frame related disparity maps prior to the disparity map related to the current frame; determining identifier information of the waiting-for-recognition object, and updating the pixel probability map of the waiting-for-recognition object; and updating, based on the updated pixel probability map of the waiting-for-recognition object, the first boundary region of the waiting-for-recognition object, so as to get a second boundary region of the waiting-for-recognition object. |
申请公布号 |
US9298990(B2) |
申请公布日期 |
2016.03.29 |
申请号 |
US201414568223 |
申请日期 |
2014.12.12 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
You Ganmei;Lu Yaojie;Shi Zhongchao;Chen Chao;Wang Gang |
分类号 |
G06K9/00;G06K9/52;G06K9/46;G06K9/62 |
主分类号 |
G06K9/00 |
代理机构 |
Harness, Dickey & Pierce, P.L.C. |
代理人 |
Harness, Dickey & Pierce, P.L.C. |
主权项 |
1. A method of tracking plural some-type objects based on continuous disparity maps, comprising:
a step of obtaining a first boundary region of a waiting-for-recognition object, which is detected from a disparity map related to current frame, in the disparity map related to the current frame; a step of calculating a probability of each valid pixel in the first boundary region of the waiting-for-recognition object belonging to a pixel for forming the waiting-for-recognition object, so as to obtain a pixel probability map of the waiting-for-recognition object; a step of obtaining historic tracking data of each tracked object, which includes identifier information of the tracked object and a pixel probability map related to each of one or more prior frame related disparity maps prior to the disparity map related to the current frame; a step of determining, based on matching of the pixel probability map of the waiting-for-recognition object and each of one or more pixel probability maps of each tracked object, identifier information of the waiting-for-recognition object, and updating the pixel probability map of the waiting-for-recognition object; and a step of updating, based on the updated pixel probability map of the waiting-for-recognition object, the first boundary region of the waiting-for-recognition object, so as to obtain a second boundary region of the waiting-for-recognition object. |
地址 |
Tokyo JP |