公开(公告)号：US20130195376A1

公开(公告)日：2013-08-01

申请号：US13748562

申请日：2013-01-23

Applicant: Qualcomm Incorporated

Inventor： Pawan Kumar Baheti ,  Ankit Agarwal ,  Dhananjay Ashok Gore

IPC: G06K9/36

CPC classification number: G06K9/00456 ,  G06K9/3258 ,  G06K9/36 ,  G06K9/4647 ,  G06K2209/01 ,  G06T11/60

Abstract: An electronic device and method use a camera to capture an image of an environment outside the electronic device followed by identification of regions, based on pixel intensities in the image. At least one processor automatically computes multiple values of an indicator of skew in multiple regions in the image respectively. The multiple values are specific to the multiple regions, and thereafter used to determine whether unacceptable skew is present across the regions, e.g. globally in the image as a whole. When skew is determined to be unacceptable, user input is requested to correct the skew, e.g. by displaying on a screen, a symbol and receiving user input (e.g. by rotating an area of touch or rotating the electronic device) to align a direction of the symbol with a direction of the image, and then the process may repeat (e.g. capture image, detect skew, and if necessary request user input).

Abstract translation: 电子设备和方法使用相机来基于图像中的像素强度来捕获电子设备外的环境的图像，然后识别区域。 至少一个处理器分别自动计算图像中多个区域的偏斜指标的多个值。 多个值对于多个区域是特定的，然后用于确定跨区域是否存在不可接受的偏斜，例如， 全球在整体形象上。 当确定歪斜是不可接受的时，请求用户输入来校正歪斜，例如。 通过在屏幕上显示符号和接收用户输入（例如通过旋转触摸区域或旋转电子设备）以使符号的方向与图像的方向对齐，然后该过程可以重复（例如捕获图像 ，检测偏斜，如有必要请求用户输入）。

公开(公告)号：US08831381B2

公开(公告)日：2014-09-09

申请号：US13748562

申请日：2013-01-23

Applicant: QUALCOMM Incorporated

Inventor： Pawan Kumar Baheti ,  Ankit Agarwal ,  Dhananjay Ashok Gore

IPC: G06K9/36 ,  G06T11/60 ,  G06K9/32 ,  G06K9/00

CPC classification number: G06K9/00456 ,  G06K9/3258 ,  G06K9/36 ,  G06K9/4647 ,  G06K2209/01 ,  G06T11/60

Abstract: An electronic device and method use a camera to capture an image of an environment outside the electronic device followed by identification of regions, based on pixel intensities in the image. At least one processor automatically computes multiple values of an indicator of skew in multiple regions in the image respectively. The multiple values are specific to the multiple regions, and thereafter used to determine whether unacceptable skew is present across the regions, e.g. globally in the image as a whole. When skew is determined to be unacceptable, user input is requested to correct the skew, e.g. by displaying on a screen, a symbol and receiving user input (e.g. by rotating an area of touch or rotating the electronic device) to align a direction of the symbol with a direction of the image, and then the process may repeat (e.g. capture image, detect skew, and if necessary request user input).

Abstract translation: 电子设备和方法使用相机来基于图像中的像素强度来捕获电子设备外的环境的图像，然后识别区域。 至少一个处理器分别自动计算图像中多个区域的偏斜指标的多个值。 多个值对于多个区域是特定的，然后用于确定跨区域是否存在不可接受的偏斜，例如， 全球在整体形象上。 当确定歪斜是不可接受的时，请求用户输入来校正歪斜，例如。 通过在屏幕上显示符号和接收用户输入（例如通过旋转触摸区域或旋转电子设备）以使符号的方向与图像的方向对齐，然后该过程可以重复（例如捕获图像 ，检测偏斜，如有必要请求用户输入）。

公开(公告)号：US20130194448A1

公开(公告)日：2013-08-01

申请号：US13748574

申请日：2013-01-23

Applicant: QUALCOMM Incorporated

Inventor： Pawan Kumar Baheti ,  Ankit Agarwal ,  Dhananjay Ashok Gore

IPC: G06K9/00

CPC classification number: G06K9/00456 ,  G06K9/3258 ,  G06K9/36 ,  G06K9/4647 ,  G06K2209/01 ,  G06T11/60

Abstract: An electronic device and method may capture an image of an environment, followed by identification of blocks of connected components in the image. A test for overlap of spans may be made, between a span of a block selected (e.g. for having a line of pixels) and another span of an adjacent block located above, or below, or to the left, or to the right of the selected block and when satisfied, these two blocks are merged. Blocks may additionally be tested, e.g., for relative heights of the two blocks, and/or aspect ratio of either or both blocks, etc. Classification of a merged block as text or non-text may use attributes of the merged block, such as location of a horizontal pixel line, number of vertical pixel lines, and number of black-white transitions and number of white-black transitions in a subset of rows located below the horizontal pixel line.

Abstract translation: 电子设备和方法可以捕获环境的图像，然后识别图像中连接的组件的块。 可以在所选择的块的跨度（例如，具有一行像素）和位于上方或下方，或左侧或左侧或右侧的相邻块的跨度之间进行跨度的重叠的测试 选定的块，当满足时，这两个块被合并。 可以另外测试块，例如，两个块的相对高度和/或两个块的两个或两个块的纵横比等。作为文本或非文本的合并块的分类可以使用合并块的属性，诸如 水平像素线的位置，垂直像素线的数量，以及位于水平像素线下方的行的子集中的黑白转换的数量和白黑转换的数量。