Method and system of material identification using binocular steroscopic and multi-energy transmission images

US8194953B2 · kind B2 · utility

Assignees

• NUCTECH COMPANY LIMITED · CN
• TSINGHUA UNIVERSITY · CN

Inventors

• Yali Xie · Beijing, CN
• Qitian Miao · Beijing, CN
• Hua Peng · Beijing, CN
• Kejun Kang · Beijing, CN
• Haifeng Hu · Beijing, CN
• Zhiqiang Chen · Beijing, CN
• Xueguang Cao · Beijing, CN
• Chuanxiang Tang · Beijing, CN
• Jianping Gu · Shanghai, CN
• Xuewu Wang · Beijing, CN
• Hongsheng Wen · Beijing, CN
• Bei He · Beijing, CN
• Yaohong Liu · Beijing, CN
• Shangmin Sun · Beijing, CN
• Quanwei Song · Beijing, CN
• Jin Lin · Beijing, CN
• Xianli Ding · Longbeilingcun, CN

Key dates

• Filing date: Jul 28, 2008
• Grant date: Jun 5, 2012
• Expiry date: Mar 26, 2031

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2207/10116
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The present invention provides a method and system of material identification using binocular steroscopic and multi-energy transmission image. With the method, any obstacle that dominates the ray absorption can be peeled off from the objects that overlap in the direction of a ray beam. The object that is unobvious due to a relatively small amount of ray absorption will thus stand out, and the material property of the object, such as organic, mixture, metal and the like can be identified. This method lays a fundament for automatic identification of harmful objects, such as explosive, drugs, etc., concealed in a freight container.