公开(公告)号：US20140192210A1

公开(公告)日：2014-07-10

申请号：US14021337

申请日：2013-09-09

Applicant: QUALCOMM Incorporated

Inventor： Michael GERVAUTZ ,  Jieun KIM ,  Per O. NIELSEN ,  Roy LAWRENCE ASHOK INIGO ,  Qi PAN ,  Romain TALLONNEAU

IPC: G06K9/18 ,  G06F3/00 ,  H04N1/00

CPC classification number: G06K9/18 ,  G06F3/005 ,  G06K9/228 ,  G06T7/246 ,  G06T7/74 ,  G06T2207/30244 ,  G10L13/00 ,  H04N1/00204

Abstract: Embodiments disclosed pertain to mobile device based text detection and tracking. In some embodiments, a first reference frame is obtained by performing Optical Character Recognition (OCR) on an image frame captured by a camera to locate and recognize a first text block. A subsequent image frame may be selected from a set of subsequent image frames based on parameters associated with the selected subsequent image and a second reference frame may be obtained by performing OCR on the selected subsequent image frame to recognize a second text block. A geometric relationship between the first and second text blocks is determined based on a position of the first text block in the second reference frame and a pose associated with the second reference frame.

Abstract translation: 所公开的实施例涉及基于移动设备的文本检测和跟踪。 在一些实施例中，通过在由相机拍摄的图像帧上执行光学字符识别（OCR）来定位和识别第一文本块来获得第一参考帧。 可以基于与所选择的后续图像相关联的参数从一组后续图像帧中选择后续图像帧，并且可以通过在所选择的后续图像帧上执行OCR以识别第二文本块来获得第二参考帧。 基于第二参考帧中的第一文本块的位置和与第二参考帧相关联的姿势来确定第一和第二文本块之间的几何关系。