CN104460985B - One kind continues backlight approach, system and terminal automatically based on recognition of face - Google Patents
One kind continues backlight approach, system and terminal automatically based on recognition of face Download PDFInfo
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Abstract
本发明提供一种基于人脸识别自动延续背光方法、系统及终端。包括以下步骤：终端检测到人脸与终端屏幕之间的距离小于预设值时，终端屏幕背光亮起并设定背光关闭周期；背光关闭周期到达时，所述终端将获得的人脸图像信息与存储的所述人脸特征信息进行比对，若匹配成功，则进入下一个背光关闭周期；终端统计预设时段内人脸检测次数、人脸匹配成功次数并根据获得的所述人脸检测次数、所述人脸匹配成功次数，按照预设策略，获得人脸匹配成功率；终端根据获得的所述人脸匹配成功率、人脸匹配成功率范围及背光关闭周期调整策略表，获得调整后的背光关闭周期。根据本发明提供的一种基于人脸识别自动延续背光方法、系统及终端，提供了一种灵活的延迟自动背光息屏方案，使得用户的体验大大提升。
The present invention provides a method, system and terminal for automatically continuing backlight based on face recognition. The method comprises the following steps: when the terminal detects that the distance between the face and the terminal screen is less than a preset value, the backlight of the terminal screen is turned on and the backlight off period is set; when the backlight off period arrives, the terminal will obtain the face image information Compared with the stored face feature information, if the matching is successful, enter the next backlight off cycle; the terminal counts the number of face detections and the number of successful face matching within a preset period of time, and according to the obtained face detection The number of times, the number of successful face matching, according to the preset strategy, obtain the success rate of face matching; the terminal adjusts the policy table according to the obtained success rate of face matching, the range of the success rate of face matching and the backlight off cycle, and obtains the adjusted after the backlight off cycle. According to the face recognition-based automatic continuation backlight method, system and terminal provided by the present invention, a flexible delayed automatic backlight off-screen solution is provided, which greatly improves user experience.
Description
技术领域technical field
本发明属于智能控制领域，尤其涉及一种基于人脸识别自动延续背光方法、系统及终端。The invention belongs to the field of intelligent control, and in particular relates to a method, system and terminal for automatically continuing backlight based on face recognition.
背景技术Background technique
现有技术公开了一种控制显示屏自动背光的方法，包括以下步骤：a.在自动背光息屏前的预订时间开启摄像头；b.将摄像头获取的图像进行灰化；c.将灰化后的图像二值化；d.分析二值化后的图像里是否有预订的面部器官或物件；e.如果有预订的面部器官或物件，延迟自动背光息屏，如果没有，返回步骤b直至自动背光息屏时间到。The prior art discloses a method for controlling the automatic backlight of a display screen, which includes the following steps: a. Turn on the camera at a predetermined time before the automatic backlight turns off the screen; b. Ashing the image acquired by the camera; c. d. Analyze whether there are predetermined facial organs or objects in the binarized image; e. If there are predetermined facial organs or objects, delay the automatic backlight screen, if not, return to step b until automatic It's time for the backlight to turn off the screen.
上述方案没有提供一种灵活的延迟自动背光息屏方案，使得用户的体验大大降低。The above-mentioned solution does not provide a flexible and delayed automatic backlight off-screen solution, which greatly reduces user experience.
发明内容Contents of the invention
本发明提供一种基于人脸识别自动延续背光方法、系统及终端，以解决上述问题。The present invention provides a method, system and terminal for automatically continuing backlight based on face recognition to solve the above problems.
本发明提供一种基于人脸识别自动延续背光方法。上述方法包括以下步骤：The invention provides a method for automatically continuing the backlight based on face recognition. The above method comprises the following steps:
终端检测到人脸与终端屏幕之间的距离小于预设值时，终端屏幕背光亮起并设定背光关闭周期；When the terminal detects that the distance between the face and the terminal screen is less than the preset value, the backlight of the terminal screen is turned on and the backlight off period is set;
背光关闭周期到达时，所述终端将获得的人脸图像信息与存储的所述人脸特征信息进行比对，若匹配成功，则进入下一个背光关闭周期；When the backlight off period arrives, the terminal compares the obtained face image information with the stored face feature information, and if the matching is successful, enters the next backlight off period;
终端统计预设时段内人脸检测次数、人脸匹配成功次数并根据获得的所述人脸检测次数、所述人脸匹配成功次数，按照预设策略，获得人脸匹配成功率；The terminal counts the number of times of face detection and the number of successful face matching within a preset period of time, and obtains the success rate of face matching according to the preset strategy according to the obtained number of times of face detection and the number of successful face matching;
终端根据获得的所述人脸匹配成功率、人脸匹配成功率范围及背光关闭周期调整策略表，获得调整后的背光关闭周期。The terminal obtains the adjusted backlight off period according to the obtained face matching success rate, the range of the face matching success rate and the backlight off period adjustment policy table.
本发明还提供一种基于人脸识别自动延续背光系统，包括终端、策略控制器；其中，所述终端与所述策略控制器直接相连；The present invention also provides a system for automatically continuing the backlight based on face recognition, including a terminal and a strategy controller; wherein, the terminal is directly connected to the strategy controller;
所述终端，用于检测到人脸与终端屏幕之间的距离小于预设值时，终端屏幕背光亮起并设定背光关闭周期；还用于背光关闭周期到达时，所述终端将获得的人脸图像信息与存储的所述人脸特征信息进行比对，若匹配成功，则进入下一个背光关闭周期；还用于统计预设时段内人脸检测次数、人脸匹配成功次数并根据获得的所述人脸检测次数、所述人脸匹配成功次数，按照预设策略，获得人脸匹配成功率；The terminal is used to detect that the distance between the face and the terminal screen is less than a preset value, the backlight of the terminal screen is turned on and the backlight off period is set; it is also used for when the backlight off period arrives, the terminal will obtain The face image information is compared with the stored face feature information, and if the matching is successful, then enter the next backlight off cycle; it is also used to count the number of times of face detection in the preset period, the number of successful face matching and according to the obtained The number of times of face detection, the number of times of successful face matching, according to the preset strategy, obtain the success rate of face matching;
所述策略控制器，用于向所述终端提供人脸匹配成功率范围及背光关闭周期调整策略表；The policy controller is configured to provide the terminal with a face matching success rate range and a backlight off period adjustment policy table;
所述终端，还用于根据获得的所述人脸匹配成功率、人脸匹配成功率范围及背光关闭周期调整策略表，获得调整后的背光关闭周期。The terminal is further configured to obtain the adjusted backlight off period according to the acquired face matching success rate, face matching success rate range, and backlight off period adjustment strategy table.
本发明还提供一种基于人脸识别自动延续背光终端，包括检测模块、比较模块、统计计算模块、调整模块；其中，所述检测模块通过所述比较模块与所述统计计算模块相连；所述比较模块通过所述统计计算模块与所述调整模块相连；The present invention also provides a face recognition-based automatic continuation of the backlight terminal, including a detection module, a comparison module, a statistical calculation module, and an adjustment module; wherein, the detection module is connected to the statistical calculation module through the comparison module; the The comparison module is connected to the adjustment module through the statistical calculation module;
所述检测模块，用于检测到人脸与终端屏幕之间的距离小于预设值时，终端屏幕背光亮起并设定背光关闭周期并将所述背光关闭周期发送至所述比较模块；The detection module is used to detect that when the distance between the face and the terminal screen is less than a preset value, the backlight of the terminal screen is turned on and the backlight off period is set and the backlight off period is sent to the comparison module;
所述比较模块，用于背光关闭周期到达时，将获得的人脸图像信息与存储的所述人脸特征信息进行比对，若匹配成功，则进入下一个背光关闭周期；The comparison module is used to compare the obtained face image information with the stored facial feature information when the backlight off period arrives, and if the matching is successful, enter the next backlight off period;
所述统计计算模块，用于统计预设时段内人脸检测次数、人脸匹配成功次数并根据获得的所述人脸检测次数、所述人脸匹配成功次数，按照预设策略，获得人脸匹配成功率并将获得的所述人脸匹配成功率发送至所述调整模块；The statistical calculation module is used to count the number of times of face detection and the number of successful face matching within a preset period of time, and according to the obtained number of times of face detection and the number of successful face matching, according to a preset strategy, obtain the number of people's faces matching success rate and sending the obtained face matching success rate to the adjustment module;
所述调整模块，用于根据获得的所述人脸匹配成功率、人脸匹配成功率范围及背光关闭周期调整策略表，获得调整后的背光关闭周期。The adjustment module is configured to obtain the adjusted backlight off period according to the obtained face matching success rate, face matching success rate range, and backlight off period adjustment strategy table.
相较于先前技术，根据本发明提供的一种基于人脸识别自动延续背光方法、系统及终端，提供了一种灵活的延迟自动背光息屏方案，使得用户的体验大大提升。Compared with the prior art, according to the method, system and terminal for automatically continuing the backlight based on face recognition provided by the present invention, a flexible delayed automatic backlight off-screen solution is provided, which greatly improves user experience.
通过以下方案：背光关闭周期到达时，触发所述终端进行人脸检测，终端中图像扫描模块对所述人脸进行扫描，获得人脸图像信息，将获得的所述人脸图像信息与存储的人脸特征信息进行比对，若匹配成功，则进入下一个背光关闭周期，避免了电量的浪费，增加了待机时间。Through the following scheme: when the backlight off period arrives, the terminal is triggered to perform face detection, the image scanning module in the terminal scans the face, obtains face image information, and combines the obtained face image information with the stored The face feature information is compared, and if the match is successful, it will enter the next backlight off cycle, which avoids the waste of power and increases the standby time.
通过以下方案：终端根据获得的所述人脸检测次数、所述人脸匹配成功次数，按照预设策略，获得人脸匹配成功率的过程为：人脸匹配成功率＝人脸匹配成功次数/人脸检测次数，根据获得的人脸匹配成功率、人脸匹配成功率范围及背光关闭周期调整策略表，获得调整后的背光关闭周期，大大提升了用户的体验。Through the following scheme: according to the obtained number of times of face detection and the number of successful face matching, the terminal obtains the process of the success rate of face matching according to the preset strategy: the success rate of face matching=the number of successful face matching/ The number of face detections is based on the obtained face matching success rate, face matching success rate range and backlight off cycle adjustment strategy table, and the adjusted back light off cycle is obtained, which greatly improves the user experience.
附图说明Description of drawings
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：The accompanying drawings described here are used to provide a further understanding of the present invention and constitute a part of the application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention. In the attached picture:
图1所示为本发明实施例1的基于人脸识别自动延续背光方法流程图；Fig. 1 shows the flow chart of the method for automatically continuing the backlight based on face recognition in Embodiment 1 of the present invention;
图2所示为本发明实施例2的基于人脸识别自动延续背光系统结构图；FIG. 2 is a structural diagram of the automatic continuation of the backlight system based on face recognition in Embodiment 2 of the present invention;
图3所示为本发明实施例3的基于人脸识别自动延续背光终端结构图。FIG. 3 is a structural diagram of a terminal with automatic continuation of backlight based on face recognition according to Embodiment 3 of the present invention.
具体实施方式detailed description
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.
图1所示为本发明实施例1的基于人脸识别自动延续背光方法流程图，包括以下步骤：Fig. 1 shows the flow chart of the method for automatically continuing the backlight based on face recognition in Embodiment 1 of the present invention, including the following steps:
步骤101：终端获取并存储人脸特征信息；Step 101: the terminal obtains and stores facial feature information;
终端获取并存储人脸特征信息的方式为：终端中图像扫描模块定期扫描人脸特征信息并进行存储或者终端从第三方实体(例如：图像处理器)中获取人脸特征信息并进行存储。The way for the terminal to acquire and store facial feature information is: the image scanning module in the terminal periodically scans and stores the facial feature information or the terminal acquires and stores facial feature information from a third-party entity (eg, an image processor).
步骤102：终端检测到人脸与终端屏幕之间的距离小于预设值时，终端屏幕背光亮起并设定背光关闭周期；Step 102: When the terminal detects that the distance between the face and the terminal screen is less than a preset value, the backlight of the terminal screen is turned on and the backlight off cycle is set;
终端中的距离传感器检测到人脸与终端屏幕之间的距离小于第一预设值时，触发终端屏幕背光亮起并设定背光关闭周期。When the distance sensor in the terminal detects that the distance between the human face and the terminal screen is less than a first preset value, it triggers the backlight of the terminal screen to turn on and sets the backlight off period.
背光关闭周期在实际的应用中可以灵活设定，例如：背光关闭周期T＝120秒。The backlight off period can be flexibly set in practical applications, for example: the backlight off period T=120 seconds.
步骤103：背光关闭周期到达时，所述终端将获得的人脸图像信息与存储的所述人脸特征信息进行比对，若匹配成功，则进入下一个背光关闭周期；Step 103: When the backlight off period arrives, the terminal compares the obtained facial image information with the stored facial feature information, and if the matching is successful, enters the next backlight off period;
背光关闭周期到达时，触发所述终端进行人脸检测，终端中图像扫描模块对所述人脸进行扫描，获得人脸图像信息，将获得的所述人脸图像信息与存储的人脸特征信息进行比对，若匹配成功，则进入下一个背光关闭周期。When the backlight off period arrives, the terminal is triggered to perform face detection, and the image scanning module in the terminal scans the face to obtain face image information, and combines the obtained face image information with the stored face feature information Perform a comparison, and if the match is successful, enter the next backlight off cycle.
步骤104：终端统计预设时段内人脸检测次数、人脸匹配成功次数并根据获得的所述人脸检测次数、所述人脸匹配成功次数，按照预设策略，获得人脸匹配成功率；Step 104: The terminal counts the number of times of face detection and the number of successful face matching within a preset period of time, and obtains the success rate of face matching according to the preset strategy according to the obtained number of times of face detection and the number of successful face matching;
终端根据获得的所述人脸检测次数、所述人脸匹配成功次数，按照预设策略，获得人脸匹配成功率的过程为：According to the obtained number of times of face detection and the number of times of successful face matching, the terminal obtains the success rate of face matching according to the preset strategy as follows:
人脸匹配成功率＝人脸匹配成功次数/人脸检测次数。Face matching success rate = number of successful face matching/number of face detections.
步骤105：终端根据获得的所述人脸匹配成功率、人脸匹配成功率范围及背光关闭周期调整策略表，获得调整后的背光关闭周期。Step 105: The terminal obtains the adjusted backlight off period according to the obtained face matching success rate, face matching success rate range, and backlight off period adjustment strategy table.
人脸匹配成功率范围及背光关闭周期调整策略表如表1所示：The face matching success rate range and backlight off cycle adjustment strategy table are shown in Table 1:
表1Table 1
T在实际的应用中可以灵活设定，例如：T＝120秒；所述第二预设值可以根据实际情况进行灵活设定，例如：90％。T can be flexibly set in practical applications, for example: T=120 seconds; the second preset value can be flexibly set according to actual conditions, for example: 90%.
终端获得人脸匹配成功率范围及背光关闭周期调整策略表的方式包括：终端自身存储人脸匹配成功率范围及背光关闭周期调整策略表或者终端从策略控制器中获取人脸匹配成功率范围及背光关闭周期调整策略表。The way for the terminal to obtain the face matching success rate range and backlight off cycle adjustment strategy table includes: the terminal itself stores the face matching success rate range and backlight off cycle adjustment policy table or the terminal obtains the face matching success rate range and backlight off cycle adjustment policy table from the policy controller. Backlight off cycle adjustment policy table.
下面进行举例进行详细说明：The following is an example to describe in detail:
手机通过摄像头预先对张三的人脸进行拍照，存储张三的人脸特征信息或者手机从第三方实体(例如：摄像机)中获得张三的人脸特征信息。当张三的人脸靠近手机时，手机中的距离传感器检测到张三的人脸与手机屏幕之间的距离小于0.3米时，触发手机屏幕背光亮起并设定背光关闭周期T＝120秒。The mobile phone pre-photographs Zhang San's face through the camera, stores Zhang San's face feature information or the mobile phone obtains Zhang San's face feature information from a third-party entity (for example: a camera). When Zhang San's face is close to the mobile phone, the distance sensor in the mobile phone detects that the distance between Zhang San's face and the mobile phone screen is less than 0.3 meters, triggers the backlight of the mobile phone screen to light up and sets the backlight off period T=120 seconds .
背光关闭周期120秒到达时，触发手机进行人脸检测，手机中图像扫描模块对所述人脸进行扫描，获得人脸图像信息，将获得的所述人脸图像信息与存储的人脸特征信息进行比对，若匹配成功，则进入下一个背光关闭周期。When the backlight off period of 120 seconds arrives, the mobile phone is triggered to perform face detection, and the image scanning module in the mobile phone scans the face to obtain face image information, and combines the obtained face image information with the stored face feature information Perform a comparison, and if the match is successful, enter the next backlight off cycle.
手机统计预设时段(例如：3600秒)内人脸检测次数10次、人脸匹配成功次数8次，则获得人脸匹配成功率＝8/10＝80％。The mobile phone counts 10 times of face detection and 8 times of successful face matching within a preset period of time (for example: 3600 seconds), then the success rate of face matching = 8/10 = 80%.
手机根据获得的人脸匹配成功率(80％)，结合表1可知，获得调整后的背光关闭周期为：0.8T。Based on the obtained face matching success rate (80%) of the mobile phone, combined with Table 1, it can be seen that the adjusted backlight off period is: 0.8T.
图2所示为本发明实施例2的基于人脸识别自动延续背光系统结构图，包括终端、策略控制器；其中，所述终端与所述策略控制器直接相连；FIG. 2 is a structural diagram of the automatic continuation of the backlight system based on face recognition in Embodiment 2 of the present invention, including a terminal and a strategy controller; wherein, the terminal is directly connected to the strategy controller;
所述终端，用于检测到人脸与终端屏幕之间的距离小于预设值时，终端屏幕背光亮起并设定背光关闭周期；还用于背光关闭周期到达时，所述终端将获得的人脸图像信息与存储的所述人脸特征信息进行比对，若匹配成功，则进入下一个背光关闭周期；还用于统计预设时段内人脸检测次数、人脸匹配成功次数并根据获得的所述人脸检测次数、所述人脸匹配成功次数，按照预设策略，获得人脸匹配成功率；The terminal is used to detect that the distance between the face and the terminal screen is less than a preset value, the backlight of the terminal screen is turned on and the backlight off period is set; it is also used for when the backlight off period arrives, the terminal will obtain The face image information is compared with the stored face feature information, and if the matching is successful, then enter the next backlight off cycle; it is also used to count the number of times of face detection in the preset period, the number of successful face matching and according to the obtained The number of times of face detection, the number of times of successful face matching, according to the preset strategy, obtain the success rate of face matching;
所述策略控制器，用于向所述终端提供人脸匹配成功率范围及背光关闭周期调整策略表；The policy controller is configured to provide the terminal with a face matching success rate range and a backlight off period adjustment policy table;
所述终端，还用于根据获得的所述人脸匹配成功率、人脸匹配成功率范围及背光关闭周期调整策略表，获得调整后的背光关闭周期。The terminal is further configured to obtain the adjusted backlight off period according to the acquired face matching success rate, face matching success rate range, and backlight off period adjustment strategy table.
其中，所述终端还用于获取并存储人脸特征信息。Wherein, the terminal is also used to acquire and store facial feature information.
图3所示为本发明实施例3的基于人脸识别自动延续背光终端结构图，包括检测模块、比较模块、统计计算模块、调整模块；其中，所述检测模块通过所述比较模块与所述统计计算模块相连；所述比较模块通过所述统计计算模块与所述调整模块相连；Fig. 3 shows the structural diagram of the automatic continuation backlight terminal based on face recognition in Embodiment 3 of the present invention, including a detection module, a comparison module, a statistical calculation module, and an adjustment module; wherein, the detection module communicates with the comparison module through the comparison module. The statistical calculation module is connected; the comparison module is connected to the adjustment module through the statistical calculation module;
所述检测模块，用于检测到人脸与终端屏幕之间的距离小于预设值时，终端屏幕背光亮起并设定背光关闭周期并将所述背光关闭周期发送至所述比较模块；The detection module is used to detect that when the distance between the face and the terminal screen is less than a preset value, the backlight of the terminal screen is turned on and the backlight off period is set and the backlight off period is sent to the comparison module;
所述比较模块，用于背光关闭周期到达时，将获得的人脸图像信息与存储的所述人脸特征信息进行比对，若匹配成功，则进入下一个背光关闭周期；The comparison module is used to compare the obtained face image information with the stored facial feature information when the backlight off period arrives, and if the matching is successful, enter the next backlight off period;
所述统计计算模块，用于统计预设时段内人脸检测次数、人脸匹配成功次数并根据获得的所述人脸检测次数、所述人脸匹配成功次数，按照预设策略，获得人脸匹配成功率并将获得的所述人脸匹配成功率发送至所述调整模块；The statistical calculation module is used to count the number of times of face detection and the number of successful face matching within a preset period of time, and according to the obtained number of times of face detection and the number of successful face matching, according to a preset strategy, obtain the number of people's faces matching success rate and sending the obtained face matching success rate to the adjustment module;
所述调整模块，用于根据获得的所述人脸匹配成功率、人脸匹配成功率范围及背光关闭周期调整策略表，获得调整后的背光关闭周期。The adjustment module is configured to obtain the adjusted backlight off period according to the obtained face matching success rate, face matching success rate range, and backlight off period adjustment strategy table.
相较于先前技术，根据本发明提供的一种基于人脸识别自动延续背光方法、系统及终端，提供了一种灵活的延迟自动背光息屏方案，使得用户的体验大大提升。Compared with the prior art, according to the method, system and terminal for automatically continuing the backlight based on face recognition provided by the present invention, a flexible delayed automatic backlight off-screen solution is provided, which greatly improves user experience.
通过以下方案：背光关闭周期到达时，触发所述终端进行人脸检测，终端中图像扫描模块对所述人脸进行扫描，获得人脸图像信息，将获得的所述人脸图像信息与存储的人脸特征信息进行比对，若匹配成功，则进入下一个背光关闭周期，避免了电量的浪费，增加了待机时间。Through the following scheme: when the backlight off period arrives, the terminal is triggered to perform face detection, the image scanning module in the terminal scans the face, obtains face image information, and combines the obtained face image information with the stored The face feature information is compared, and if the match is successful, it will enter the next backlight off cycle, which avoids the waste of power and increases the standby time.
通过以下方案：终端根据获得的所述人脸检测次数、所述人脸匹配成功次数，按照预设策略，获得人脸匹配成功率的过程为：人脸匹配成功率＝人脸匹配成功次数/人脸检测次数，根据获得的人脸匹配成功率、人脸匹配成功率范围及背光关闭周期调整策略表，获得调整后的背光关闭周期，大大提升了用户的体验。Through the following scheme: according to the obtained number of times of face detection and the number of successful face matching, the terminal obtains the process of the success rate of face matching according to the preset strategy: the success rate of face matching=the number of successful face matching/ The number of face detections is based on the obtained face matching success rate, face matching success rate range and backlight off cycle adjustment strategy table, and the adjusted back light off cycle is obtained, which greatly improves the user experience.
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.
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