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。

公开(公告)号：US20130222312A1

公开(公告)日：2013-08-29

申请号：US13844551

申请日：2013-03-15

Applicant: QUALCOMM Incorporated

Inventor： Diego A. WILSON ,  Sean Scott ROGERS ,  Per O. NIELSEN

IPC: G06T1/00

CPC classification number: G06T1/00 ,  G06F3/04817 ,  G06F3/0485 ,  G06F3/04883

Abstract: Methods and devices provide a user interface that provides visual cues when a document pan or scroll has reached an end or boundary by distorting the document image in response to further user inputs. The image distortion functionality may include shrinking, stretching, accordion expansion, or bouncing of a document image. The degree of image distortion may be proportional to the distance that a user input would have the document move beyond the encountered boundary. When a boundary of a document image is reached during a rapid pan or scroll, a bouncing image distortion may be applied to the document image to inform the user that the document reached a boundary during the movement.

Abstract translation: 方法和设备提供用户界面，当文档平移或滚动已经到达结束或边界时，通过扭曲文档图像以响应进一步的用户输入而提供视觉提示。 图像失真功能可以包括文档图像的缩小，拉伸，手风琴展开或弹跳。 图像失真的程度可以与用户输入的文档移动超过遇到的边界的距离成正比。 当在快速平移或滚动期间到达文档图像的边界时，可以向文档图像应用弹跳图像失真，以通知用户文档在移动期间到达边界。