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:
Jan. 21, 2014
Filed:
Nov. 10, 2010
Seong-ii Choi, Gyeonggi-do, KR;
Hyo Sung Cho, Gangwon-do, KR;
Seong-II Choi, Gyeonggi-do, KR;
Hyo Sung Cho, Gangwon-do, KR;
Vatech Co., Ltd., Gyeonggi-do, KR;
Abstract
The present invention provides an apparatus and a method for obtaining panoramic images in which cervical effect is corrected in such a manner that the uniform contrast is shown. According to the apparatus and the method, the method comprises the steps of: obtaining a preceding frame image by irradiating radiation on one certain section of an image layer trace on which the tooth trace of a subject is embodied; calculating a gray scale average value of pixels that are included within a predetermined reference region of the preceding frame image; comparing the calculated gray scale average value with a gray scale reference value that is calculated from a prepared sample image, and generating a radiation correction value corresponding to a difference value therebetween; and obtaining a succeeding frame image by irradiating strength-adjusted radiation on one section that is adjacent to the other section of an unknown layer trace, according to the calculated radiation correction value.