公开(公告)号：US09177383B2

公开(公告)日：2015-11-03

申请号：US14013122

申请日：2013-08-29

Applicant: ANALOG DEVICES TECHNOLOGY

Inventor： Anil M. Sripadarao ,  Bijesh Poyil

IPC: G06K9/48 ,  G06T7/00 ,  G06K9/62

CPC classification number: G06T7/0085 ,  G06K9/00228 ,  G06K9/4614 ,  G06K9/6256 ,  G06K9/6267 ,  G06K9/6282

Abstract: In one aspect, there is disclosed a digital signal processor and method performed by the same for performing object detection, including facial detection, in a reduced number of clock cycles. The method comprises using Sobel edge detection to identify regions with many edges, and classifying those regions as foreground candidates. Foreground candidates are further checked for vertical or horizontal symmetry, and symmetrical windows are classified as face candidates. Viola-Jones type facial detection is then performed only on those windows identified as face candidates.

Abstract translation: 在一个方面，公开了一种数字信号处理器及其方法，该数字信号处理器和方法由减少数量的时钟周期执行，用于执行包括面部检测的对象检测。 该方法包括使用Sobel边缘检测来识别具有许多边缘的区域，并将这些区域分类为前景候选。 进一步检查前景候选者的垂直或水平对称性，对称窗口被分类为面部候选。 然后仅在被识别为面部候选的那些窗口上执行Viola-Jones型面部检测。

公开(公告)号：US20150063708A1

公开(公告)日：2015-03-05

申请号：US14013122

申请日：2013-08-29

Applicant: ANALOG DEVICES TECHNOLOGY

Inventor： Anil M. Sripadarao ,  Bijesh Poyil

IPC: G06T7/00 ,  G06K9/62

CPC classification number: G06T7/0085 ,  G06K9/00228 ,  G06K9/4614 ,  G06K9/6256 ,  G06K9/6267 ,  G06K9/6282

Abstract: In one aspect, there is disclosed a digital signal processor and method performed by the same for performing object detection, including facial detection, in a reduced number of clock cycles. The method comprises using Sobel edge detection to identify regions with many edges, and classifying those regions as foreground candidates. Foreground candidates are further checked for vertical or horizontal symmetry, and symmetrical windows are classified as face candidates. Viola-Jones type facial detection is then performed only on those windows identified as face candidates.

Abstract translation: 在一个方面，公开了一种数字信号处理器及其方法，该数字信号处理器和方法由减少数量的时钟周期执行，用于执行包括面部检测的对象检测。 该方法包括使用Sobel边缘检测来识别具有许多边缘的区域，并将这些区域分类为前景候选。 进一步检查前景候选者的垂直或水平对称性，对称窗口被分类为面部候选。 然后仅在被识别为面部候选的那些窗口上执行Viola-Jones型面部检测。

公开(公告)号：US20150030250A1

公开(公告)日：2015-01-29

申请号：US13951193

申请日：2013-07-25

Applicant: ANALOG DEVICES TECHNOLOGY

Inventor： Bijesh Poyil ,  Ramandeep Singh Kukreja ,  Anil M. Sripadarao

IPC: G06K9/48

CPC classification number: G06K9/48 ,  G06K9/4638 ,  G06T7/11 ,  G06T7/12 ,  G06T7/13 ,  G06T7/136 ,  G06T7/181 ,  G06T7/194 ,  G06T2200/28

Abstract: A method includes determining a position and length of a non-zero run in a row of a pixel map. The method also includes determining a number of neighbors for the non-zero run in a preceding row, based at least in part on the position and the length. In addition, the method includes updating a correspondence map of the non-zero run and a correspondence map of a first neighbor of the non-zero run, based at least in part on a correspondence map of a second neighbor of the non-zero run, in response to a determination that the non-zero run has at least two neighbors in the preceding row.

Abstract translation: 一种方法包括确定像素图的一行中的非零运行的位置和长度。 该方法还包括至少部分地基于位置和长度来确定前一行中的非零运行的数量的邻居。 另外，该方法至少部分地基于非零运行的第二邻居的对应关系图来更新非零运行的对应关系图和非零运行的第一邻居的对应关系图 响应于确定非零运行在前一行中具有至少两个邻居。

公开(公告)号：US09292763B2

公开(公告)日：2016-03-22

申请号：US13951193

申请日：2013-07-25

Applicant: ANALOG DEVICES TECHNOLOGY

Inventor： Bijesh Poyil ,  Ramandeep Singh Kukreja ,  Anil M. Sripadarao

IPC: G06K9/46 ,  G06K9/48 ,  G06T7/00

CPC classification number: G06K9/48 ,  G06K9/4638 ,  G06T7/11 ,  G06T7/12 ,  G06T7/13 ,  G06T7/136 ,  G06T7/181 ,  G06T7/194 ,  G06T2200/28

Abstract: A method includes determining a position and length of a non-zero run in a row of a pixel map. The method also includes determining a number of neighbors for the non-zero run in a preceding row, based at least in part on the position and the length. In addition, the method includes updating a correspondence map of the non-zero run and a correspondence map of a first neighbor of the non-zero run, based at least in part on a correspondence map of a second neighbor of the non-zero run, in response to a determination that the non-zero run has at least two neighbors in the preceding row.

Abstract translation: 一种方法包括确定像素图的一行中的非零运行的位置和长度。 该方法还包括至少部分地基于位置和长度来确定前一行中的非零运行的数量的邻居。 另外，该方法至少部分地基于非零运行的第二邻居的对应关系图来更新非零运行的对应关系图和非零运行的第一邻居的对应关系图 响应于确定非零运行在前一行中具有至少两个邻居。