开放能力
开发平台
行业应用
生态合作
开发与教学
资讯 社区 控制台
技术能力
语音技术
图像技术
文字识别
人脸与人体识别
视频技术
AR与VR
自然语言处理
知识图谱
数据智能
场景方案
部署方案
行业应用
智能教育
智能医疗
智能零售
智能工业
企业服务
智能政务
智能农业
信息服务
智能园区
智能硬件
人脸识别

    人脸识别特征值同步接口

    人脸识别特征值同步接口

    人脸识别特征值同步接口可以实现人脸特征抽取和人脸库的构建。

    该接口主要用于在服务端(云端)提取与人脸离线识别SDK通用的人脸特征值,通过调用该接口获取到的人脸特征值及构建的人脸库可以直接导入离线设备端作为人脸离线识别SDK的底库。

    特征抽取接口

    说明:该接口用于检测图片中的人脸并获得人脸位置信息及特征数据

    1. 请求参数

    1.1. 请求方法

    HTTP方法:POST

    请求URL: https://aip.baidubce.com/rest/2.0/face/v1/feature

    URL参数:

    参数
    access_token 通过API Key和Secret Key获取的access_token,参考“Access Token获取

    Header:

    参数
    Content-Type application/json

    1.2. 参数列表

    参数 是否必选 类型 说明
    image string 图片信息(数据大小应小于10M)
    image_type string 图片类型:
    BASE64:图片的base64值
    URL:图片的 URL( 下载图片时可能由于网络等原因导致下载图片时间过长)
    version uint32 服务版本, 当前支持【4300、4501、5101、6001、6002】, 其中4300对应sdk的3.x系列版本SDK,4501对应4.x系列版本SDK,5101对应sdk5.0版本SDK,6001对应sdk6.0通行版本SDK,6002对应sdk6.0口罩版本
    max_face_num uint32 最多处理人脸的数目. 默认值为1(仅检测图片中面积最大的那个人脸) 最大值100
    prob_threshold float 人脸检测置信度过滤阈值 范围0~1 默认值为0.5
    min_face_size uint32 人脸大小过滤阈值 默认值为50(仅检测人脸区域宽度在50以上的人脸)

    1.3. 请求示例

    {
      "image": "/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAgGBgcGBQgHB...",
      "image_type": "BASE64",
      "version": 4300
    }

    2.返回结果

    2.1. 参数列表

    字段 是否必选 类型 说明
    face_num int 图片中的人脸数量
    face_list array 人脸信息列表 字段信息见下
    ----------------------------- ---- ---- -----------------------------------------------------------------
    location array 人脸在图片中的位置
    +center_x float 人脸区域中心点离左边界的距离
    +center_y float 人脸区域中心点离上边界的距离
    +width float 人脸区域的宽度
    +height float 人脸区域的高度
    +rotation int64 人脸框相对于竖直方向的顺时针旋转角,[-180,180]
    face_probability float 人脸置信度,范围0-1
    landmark72 array 72个特征点位置 face_field包含landmark时返回 具体对应位置见72个关键点示意图
    landmark72_probability float 人脸置信度,范围0-1
    feature string 人脸特征信息

    2.2. 返回示例

    {
    "error_code": 0,
    "error_msg": "SUCCESS",
    "log_id": 2858021767,
    "timestamp": 1586767658,
    "cached": 0,
    "result": {
        "face_num": 1,
        "face_list": [
            {
                "location": {
                    "center_x": 77.58989716,
                    "center_y": 142.822937,
                    "width": 88.65403748,
                    "height": 111.686615,
                    "rotation": 0
                },
                "landmark_probability": 0.9992024302,
                "landmark72": [
                    {
                        "x": 31.85945511,
                        "y": 134.6939392
                    },
                    {
                        "x": 34.70507431,
                        "y": 149.3773804
                    },
                    {
                        "x": 38.71540833,
                        "y": 163.9017944
                    },
                    {
                        "x": 45.37094498,
                        "y": 178.0964508
                    },
                    {
                        "x": 58.14535522,
                        "y": 190.8776245
                    },
                    {
                        "x": 73.57247925,
                        "y": 198.5220337
                    },
                    {
                        "x": 88.43057251,
                        "y": 200.3898926
                    },
                    {
                        "x": 101.6749039,
                        "y": 194.270813
                    },
                    {
                        "x": 113.2898407,
                        "y": 181.7249756
                    },
                    {
                        "x": 120.3853683,
                        "y": 167.4402008
                    },
                    {
                        "x": 122.5986481,
                        "y": 153.5954437
                    },
                    {
                        "x": 123.1974487,
                        "y": 139.8652344
                    },
                    {
                        "x": 122.687851,
                        "y": 126.2104416
                    },
                    {
                        "x": 52.40658951,
                        "y": 135.2301331
                    },
                    {
                        "x": 56.85477448,
                        "y": 132.2627563
                    },
                    {
                        "x": 61.40156555,
                        "y": 131.2002563
                    },
                    {
                        "x": 65.94801331,
                        "y": 131.8759308
                    },
                    {
                        "x": 70.11144257,
                        "y": 135.0392303
                    },
                    {
                        "x": 65.93842316,
                        "y": 135.842926
                    },
                    {
                        "x": 61.48118591,
                        "y": 136.3649902
                    },
                    {
                        "x": 56.84508896,
                        "y": 136.0989227
                    },
                    {
                        "x": 61.41680908,
                        "y": 133.6108093
                    },
                    {
                        "x": 44.35185242,
                        "y": 125.7888184
                    },
                    {
                        "x": 50.08662415,
                        "y": 120.1439972
                    },
                    {
                        "x": 57.18831635,
                        "y": 118.5079346
                    },
                    {
                        "x": 64.31583405,
                        "y": 118.9860992
                    },
                    {
                        "x": 71.02742767,
                        "y": 122.8297577
                    },
                    {
                        "x": 64.24365234,
                        "y": 123.2055359
                    },
                    {
                        "x": 57.56406403,
                        "y": 123.3519287
                    },
                    {
                        "x": 50.91134644,
                        "y": 124.1832886
                    },
                    {
                        "x": 92.80820465,
                        "y": 132.9268494
                    },
                    {
                        "x": 96.26389313,
                        "y": 128.844574
                    },
                    {
                        "x": 100.5915298,
                        "y": 127.3882294
                    },
                    {
                        "x": 105.1667709,
                        "y": 127.6879349
                    },
                    {
                        "x": 109.6202545,
                        "y": 129.9836884
                    },
                    {
                        "x": 105.8541565,
                        "y": 131.58078
                    },
                    {
                        "x": 101.5338593,
                        "y": 132.6605225
                    },
                    {
                        "x": 97.05542755,
                        "y": 132.9283447
                    },
                    {
                        "x": 100.1235352,
                        "y": 129.9213257
                    },
                    {
                        "x": 90.2924881,
                        "y": 121.1221771
                    },
                    {
                        "x": 96.0561142,
                        "y": 116.0347748
                    },
                    {
                        "x": 102.5889816,
                        "y": 114.3559265
                    },
                    {
                        "x": 109.3289413,
                        "y": 114.6903839
                    },
                    {
                        "x": 115.2678986,
                        "y": 119.429985
                    },
                    {
                        "x": 109.318779,
                        "y": 118.7310181
                    },
                    {
                        "x": 103.117363,
                        "y": 119.074173
                    },
                    {
                        "x": 96.82205963,
                        "y": 120.2095337
                    },
                    {
                        "x": 76.32652283,
                        "y": 135.2134247
                    },
                    {
                        "x": 75.47886658,
                        "y": 142.9312134
                    },
                    {
                        "x": 74.66484833,
                        "y": 150.6994934
                    },
                    {
                        "x": 71.87775421,
                        "y": 159.0964966
                    },
                    {
                        "x": 78.33350372,
                        "y": 160.4037628
                    },
                    {
                        "x": 91.78503418,
                        "y": 159.0786133
                    },
                    {
                        "x": 96.69219971,
                        "y": 156.4392853
                    },
                    {
                        "x": 92.56558228,
                        "y": 148.8883667
                    },
                    {
                        "x": 90.01399231,
                        "y": 141.4549561
                    },
                    {
                        "x": 87.45940399,
                        "y": 134.0280151
                    },
                    {
                        "x": 85.36231995,
                        "y": 155.7476807
                    },
                    {
                        "x": 66.46245575,
                        "y": 172.3835449
                    },
                    {
                        "x": 76.1668396,
                        "y": 170.0975342
                    },
                    {
                        "x": 85.70652771,
                        "y": 169.4825439
                    },
                    {
                        "x": 94.3141861,
                        "y": 168.2900391
                    },
                    {
                        "x": 102.5781555,
                        "y": 168.4827271
                    },
                    {
                        "x": 96.42169952,
                        "y": 176.848175
                    },
                    {
                        "x": 86.68830109,
                        "y": 180.6125488
                    },
                    {
                        "x": 75.61171722,
                        "y": 179.1507874
                    },
                    {
                        "x": 76.39985657,
                        "y": 172.5153046
                    },
                    {
                        "x": 85.97942352,
                        "y": 172.4254913
                    },
                    {
                        "x": 94.55542755,
                        "y": 170.6518555
                    },
                    {
                        "x": 94.6856842,
                        "y": 173.494873
                    },
                    {
                        "x": 86.11052704,
                        "y": 175.6858673
                    },
                    {
                        "x": 76.53229523,
                        "y": 175.497345
                    }
                ],
                "feature": "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",
                "face_probability": 0.9996234179
            }
        ]
    }
    }

    3. 72个关键点示意图

    72个关键点图片

    上一篇
    虚拟人SDK
    下一篇
    美妆试妆SDK