The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 16, 2012
Filed:
Nov. 14, 2008
Zhiqiang Chen, Beijing, CN;
LI Zhang, Beijing, CN;
Kejun Kang, Beijing, CN;
Xuewu Wang, Beijing, CN;
Qingping Huang, Beijing, CN;
Yuanjing LI, Beijing, CN;
Yinong Liu, Beijing, CN;
Ziran Zhao, Beijing, CN;
Yongshun Xiao, Beijing, CN;
Zhiqiang Chen, Beijing, CN;
Li Zhang, Beijing, CN;
Kejun Kang, Beijing, CN;
Xuewu Wang, Beijing, CN;
Qingping Huang, Beijing, CN;
Yuanjing Li, Beijing, CN;
Yinong Liu, Beijing, CN;
Ziran Zhao, Beijing, CN;
Yongshun Xiao, Beijing, CN;
Nuctech Company Limited, Beijing, CN;
Tsinghua University, Beijing, CN;
Abstract
A method for substance identification and an apparatus thereof are disclosed. The method comprises comprising steps of: transmitting an object under inspection using high-energy rays and low-energy rays, so as to obtain a high-energy transmission image and a low-energy transmission image for the object, wherein a value of each pixel in the high-energy image indicates a high-energy transparency of the high-energy rays with respect to corresponding parts of the object, and a value of each pixel in the low-energy image indicates a low-energy transparency of the low-energy rays with respect to corresponding parts of the object; calculating a value of a first function for the high-energy transparency and a value of a second function for the high-energy transparency and the low-energy transparency, for each pixel; and classifying locations determined by the value of the first function and the value of the second function using a pre-created classification curve, so as to identify the type of the substance of a part of the object corresponding to each pixel. With the present invention, it is possible to not only obtain a transmission image of the object, but also obtain material information in the object.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile