Title:
TARGET IDENTIFICATION METHOD AND TARGET IDENTIFICATION DEVICE
Document Type and Number:
Japanese Patent JP3446177
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a target identification method and a target identification device that can appreciably reduce the computational complexity of a correlation value of a local region and quickly and stably identify a target when recognizing a target from an input multilevel image.
SOLUTION: The number of pixels of a target is counted within a local region of a labeling image obtained from an input image to be identified. The necessity of correlation value computation for the local region is determined from the count and a given threshold. Related local regions in a target region and related local regions in template images both corresponding to the local region are extracted, and correlation values are computed. The correlation values of all the local regions for which correlation value computation is found necessary are summed up. The best matching result is determined from the sum total of correlation values computed within a moving range of the template images. A target present in the template image with the best matching result of all the template images is presumed to be the target present in the image to be identified, and the name of the target is outputted.
Inventors:
Sakaguchi Hideshi
Application Number:
JP2000339279A
Publication Date:
September 16, 2003
Filing Date:
November 07, 2000
Export Citation:
Assignee:
MCC Co., Ltd.
International Classes:
G06T1/00; G01S13/90; G06T7/00; G06T7/60; (IPC1-7): G06T7/60; G01S13/90; G06T1/00; G06T7/00
Domestic Patent References:
| JP11306353A | ||||
| JP5250475A | ||||
| JP2000180543A |
Other References:
ＰＲＭＵ９６−１８ ２次元図形の構造的記述による認識，電子情報通信学会技術研究報告，日本，１９９６年 ５月１７日，Ｖｏｌ．９６ Ｎｏ．４１，ｐｐ．４５−５０
Attorney, Agent or Firm:
Kazuto Izumi