公开(公告)号：US20130223697A1

公开(公告)日：2013-08-29

申请号：US13768032

申请日：2013-02-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jong-Seok PARK ,  Eun-Sook NAM ,  Ho-June LEU ,  Jong-In KIM

IPC: G06K9/00

CPC classification number: G06K9/00248 ,  G06K9/00228

Abstract: A face detection-processing circuit includes a down-scaler, a face detection unit, a control unit and a down-scaling ratio controller. The down-scaler is configured to scale down a resolution of an input image including at least one subject person according to a down-scaling ratio to provide a first image. The face detection unit is configured to detect a face of the least one subject person in the first image and generate coordinate information on a region of the detected face part (face region). The control unit is configured to calculate a face detection index indicating a ratio of the face region to the first image based on the coordinate information to provide control signals based on the face detection index and a face detection signal indicating whether a face is detected. The down-scaling ratio controller is configured to adjust the down-scaling ratio in response to the control signal.

Abstract translation: 面部检测处理电路包括下变换器，面部检测单元，控制单元和缩小比例控制器。 降档器被配置为根据缩小比例缩小包括至少一个被摄体的输入图像的分辨率以提供第一图像。 面部检测单元被配置为检测第一图像中的至少一个被摄体的脸部，并且生成关于检测到的脸部区域（面部区域）的区域的坐标信息。 控制单元被配置为基于坐标信息计算表示面部区域与第一图像的比率的面部检测指标，以基于面部检测指标提供控制信号，以及指示是否检测到脸部的面部检测信号。 降档比控制器被配置为响应于控制信号来调节缩小比例。