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人脸关键点

如果您对文档内容有任何疑问,可以通过以下几种方式联系我们:

  • 在百度云控制台内提交工单,咨询问题类型请选择人工智能服务
  • 如有需要讨论的疑问,欢迎进入AI社区 与其他开发者们一同交流
  • 特效用户交流QQ群:583486416

能力介绍

支持人脸 72关键点、150关键点、201 关键点检测,关键点包括人脸、眼睛、眉毛、嘴唇以及鼻子轮廓等,此服务具有如下三个业务功能:

  • 人脸五官精准定位:支持眉毛、眼睛、鼻子、嘴、腮位置的精准定位
  • 人脸轮廓精准定位:支持单人脸/多人脸的精准定位
  • 人脸角度判断:对图片中的人脸进行多种姿态角度判断

在线调试

您可以在 示例代码中心 中调试该接口,可进行签名验证、查看在线调用的请求内容和返回结果、示例代码的自动生成。

调用方式

请求URL数据格式

向API服务地址使用POST发送请求,必须在URL中带上参数access_token,可通过后台的API Key和Secret Key生成,具体方式请参考“Access Token获取”。

示例代码

#!/bin/bash
curl -i -k 'https://aip.baidubce.com/oauth/2.0/token?grant_type=client_credentials&client_id=【百度云应用的AK】&client_secret=【百度云应用的SK】'
<?php
function request_post($url = '', $param = '') {
        if (empty($url) || empty($param)) {
            return false;
        }
        
        $postUrl = $url;
        $curlPost = $param;
        $curl = curl_init();//初始化curl
        curl_setopt($curl, CURLOPT_URL,$postUrl);//抓取指定网页
        curl_setopt($curl, CURLOPT_HEADER, 0);//设置header
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);//要求结果为字符串且输出到屏幕上
        curl_setopt($curl, CURLOPT_POST, 1);//post提交方式
        curl_setopt($curl, CURLOPT_POSTFIELDS, $curlPost);
        $data = curl_exec($curl);//运行curl
        curl_close($curl);
        
        return $data;
    }

    $url = 'https://aip.baidubce.com/oauth/2.0/token';
    $post_data['grant_type']       = 'client_credentials';
    $post_data['client_id']      = '你的 Api Key';
    $post_data['client_secret'] = '你的 Secret Key';
    $o = "";
    foreach ( $post_data as $k => $v ) 
    {
        $o.= "$k=" . urlencode( $v ). "&" ;
    }
    $post_data = substr($o,0,-1);
    
    $res = request_post($url, $post_data);

    var_dump($res);

?>
package com.baidu.ai.aip.auth;

import org.json.JSONObject;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.List;
import java.util.Map;

/**
 * 获取token类
 */
public class AuthService {

    /**
     * 获取权限token
     * @return 返回示例:
     * {
     * "access_token": "24.460da4889caad24cccdb1fea17221975.2592000.1491995545.282335-1234567",
     * "expires_in": 2592000
     * }
     */
    public static String getAuth() {
        // 官网获取的 API Key 更新为你注册的
        String clientId = "百度云应用的AK";
        // 官网获取的 Secret Key 更新为你注册的
        String clientSecret = "百度云应用的SK";
        return getAuth(clientId, clientSecret);
    }

    /**
     * 获取API访问token
     * 该token有一定的有效期,需要自行管理,当失效时需重新获取.
     * @param ak - 百度云官网获取的 API Key
     * @param sk - 百度云官网获取的 Securet Key
     * @return assess_token 示例:
     * "24.460da4889caad24cccdb1fea17221975.2592000.1491995545.282335-1234567"
     */
    public static String getAuth(String ak, String sk) {
        // 获取token地址
        String authHost = "https://aip.baidubce.com/oauth/2.0/token?";
        String getAccessTokenUrl = authHost
                // 1. grant_type为固定参数
                + "grant_type=client_credentials"
                // 2. 官网获取的 API Key
                + "&client_id=" + ak
                // 3. 官网获取的 Secret Key
                + "&client_secret=" + sk;
        try {
            URL realUrl = new URL(getAccessTokenUrl);
            // 打开和URL之间的连接
            HttpURLConnection connection = (HttpURLConnection) realUrl.openConnection();
            connection.setRequestMethod("GET");
            connection.connect();
            // 获取所有响应头字段
            Map<String, List<String>> map = connection.getHeaderFields();
            // 遍历所有的响应头字段
            for (String key : map.keySet()) {
                System.err.println(key + "--->" + map.get(key));
            }
            // 定义 BufferedReader输入流来读取URL的响应
            BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            String result = "";
            String line;
            while ((line = in.readLine()) != null) {
                result += line;
            }
            /**
             * 返回结果示例
             */
            System.err.println("result:" + result);
            JSONObject jsonObject = new JSONObject(result);
            String access_token = jsonObject.getString("access_token");
            return access_token;
        } catch (Exception e) {
            System.err.printf("获取token失败!");
            e.printStackTrace(System.err);
        }
        return null;
    }

}
 # encoding:utf-8
import requests 

# client_id 为官网获取的AK, client_secret 为官网获取的SK
host = 'https://aip.baidubce.com/oauth/2.0/token?grant_type=client_credentials&client_id=【官网获取的AK】&client_secret=【官网获取的SK】'
response = requests.get(host)
if response:
    print(response.json())
#include <iostream>
#include <curl/curl.h>
#include <json/json.h>
#include "access_token.h"
// libcurl库下载链接:https://curl.haxx.se/download.html
// jsoncpp库下载链接:https://github.com/open-source-parsers/jsoncpp/
// 获取access_token所需要的url
const std::string access_token_url = "https://aip.baidubce.com/oauth/2.0/token?grant_type=client_credentials";
// 回调函数获取到的access_token存放变量
// static std::string access_token_result;
/**
 * curl发送http请求调用的回调函数,回调函数中对返回的json格式的body进行了解析,解析结果储存在result中
 * @param 参数定义见libcurl库文档
 * @return 返回值定义见libcurl库文档
 */
static size_t callback(void *ptr, size_t size, size_t nmemb, void *stream) {
    // 获取到的body存放在ptr中,先将其转换为string格式
    std::string s((char *) ptr, size * nmemb);
    // 开始获取json中的access token项目
    Json::Reader reader;
    Json::Value root;
    // 使用boost库解析json
    reader.parse(s,root);
    std::string* access_token_result = static_cast<std::string*>(stream);
    *access_token_result = root["access_token"].asString();
    return size * nmemb;
}

/**
 * 用以获取access_token的函数,使用时需要先在百度云控制台申请相应功能的应用,获得对应的API Key和Secret Key
 * @param access_token 获取得到的access token,调用函数时需传入该参数
 * @param AK 应用的API key
 * @param SK 应用的Secret key
 * @return 返回0代表获取access token成功,其他返回值代表获取失败
 */
int get_access_token(std::string &access_token, const std::string &AK, const std::string &SK) {
    CURL *curl;
    CURLcode result_code;
    int error_code = 0;
    curl = curl_easy_init();
    if (curl) {
        std::string url = access_token_url + "&client_id=" + AK + "&client_secret=" + SK;
        curl_easy_setopt(curl, CURLOPT_URL, url.data());
        curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0);
        curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0);
        std::string access_token_result;
        curl_easy_setopt(curl, CURLOPT_WRITEDATA, &access_token_result);
        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, callback);
        result_code = curl_easy_perform(curl);
        if (result_code != CURLE_OK) {
            fprintf(stderr, "curl_easy_perform() failed: %s\n",
                    curl_easy_strerror(result_code));
            return 1;
        }
        access_token = access_token_result;
        curl_easy_cleanup(curl);
        error_code = 0;
    } else {
        fprintf(stderr, "curl_easy_init() failed.");
        error_code = 1;
    }
    return error_code;
}
using System;
using System.Collections.Generic;
using System.Net.Http;

namespace com.baidu.ai
{
    public static class AccessToken

    {
        // 调用getAccessToken()获取的 access_token建议根据expires_in 时间 设置缓存
        // 返回token示例
        public static String TOKEN = "24.adda70c11b9786206253ddb70affdc46.2592000.1493524354.282335-1234567";

        // 百度云中开通对应服务应用的 API Key 建议开通应用的时候多选服务
        private static String clientId = "百度云应用的AK";
        // 百度云中开通对应服务应用的 Secret Key
        private static String clientSecret = "百度云应用的SK";

        public static String getAccessToken() {
            String authHost = "https://aip.baidubce.com/oauth/2.0/token";
            HttpClient client = new HttpClient();
            List<KeyValuePair<String, String>> paraList = new List<KeyValuePair<string, string>>();
            paraList.Add(new KeyValuePair<string, string>("grant_type", "client_credentials"));
            paraList.Add(new KeyValuePair<string, string>("client_id", clientId));
            paraList.Add(new KeyValuePair<string, string>("client_secret", clientSecret));

            HttpResponseMessage response = client.PostAsync(authHost, new FormUrlEncodedContent(paraList)).Result;
            String result = response.Content.ReadAsStringAsync().Result;
            Console.WriteLine(result);
            return result;
        }
    }
}
var https = require('https');
var qs = require('querystring');

const param = qs.stringify({
    'grant_type': 'client_credentials',
    'client_id': '您的 Api Key',
    'client_secret': '您的 Secret Key'
});

https.get(
    {
        hostname: 'aip.baidubce.com',
        path: '/oauth/2.0/token?' + param,
        agent: false
    },
    function (res) {
        // 在标准输出中查看运行结果
        res.pipe(process.stdout);
    }
);

注意access_token的有效期为30天,切记需要每30天进行定期更换,或者每次请求都拉取新token

例如此接口,使用HTTPS POST发送:

https://aip.baidubce.com/rest/2.0/face/v1/landmark?access_token=24.f9ba9c5341b67688ab4added8bc91dec.2592000.1485570332.282335-8574074

POST中Body的参数,按照下方请求参数说明选择即可。

提示:如果您为百度云老用户,正在使用其他非AI的服务,可以参考百度云AKSK鉴权方式发送请求,虽然请求方式鉴权方法和本文所介绍的不同,但请求参数和返回结果一致。

请求说明

注意事项

  • 请求体格式化:Content-Type为application/json,通过json格式化请求体。
  • Base64编码:请求的图片需经过Base64编码,图片的base64编码指将图片数据编码成一串字符串,使用该字符串代替图像地址。您可以首先得到图片的二进制,然后用Base64格式编码即可。需要注意的是,图片的base64编码是不包含图片头的,如data:image/jpg;base64,
  • 图片格式:现支持PNG、JPG、JPEG、BMP,不支持GIF图片

请求示例

HTTP方法:POST

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

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

Body中放置请求参数,参数详情如下:

请求参数

参数 必选 类型 说明
image string 图片信息(数据大小应小于10M 分辨率应小于1920*1080)
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)
FACE_TOKEN: 人脸标识
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10
face_field string 包括age,gender,landmark4,landmark72,landmark150,landmark201信息,用逗号分隔. 默认只返回face_token、人脸框、概率和旋转角度

示例代码 :

提示一:使用示例代码前,请记得替换其中的示例Token、图片地址或Base64信息。

提示二:部分语言依赖的类或库,请在代码注释中查看下载地址。

# encoding:utf-8

import requests
import json, base64

'''
人脸检测与关键点检测
'''

request_url = "https://aip.baidubce.com/rest/2.0/face/v1/landmark"
filename = '[输入图片路径]'
file = open(filename, 'rb')
image = file.read()
file.close() 
img_base64 = base64.b64encode(image)

access_token = '[调用鉴权接口获取的token]'
request_url = request_url + "?access_token=" + access_token
headers = {'content-type': 'application/json'}

req_data = json.dumps({'image': img_base64.decode(), 'image_type': 'BASE64', 'face_field': 'landmark150'})
response = requests.post(request_url, data=req_data, headers=headers)
if response:
    print (response.json())

返回说明

返回参数

  • 72点关键点返回结果
字段 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
face_token string 人脸标志
location array 人脸在图片中的位置
+left double 人脸区域离左边界的距离
+top double 人脸区域离上边界的距离
+width double 人脸区域的宽度
+height double 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 double 人脸置信度,范围0-1
angle array 人脸旋转参数 具体说明参考人脸空间姿态角参考
+yaw double 三维旋转之左右旋转角[-90(左), 90(右)]
+pitch double 三维旋转之俯仰角度[-90(上), 90(下)]
+roll double 平面内旋转角[-180(逆时针), 180(顺时针)]
age double 年龄 face_field包含age时返回
gender array 性别 face_field包含gender时返回
+type string male:男性 female:女性
+probability double 性别置信度,范围0~1
landmark72 array 72个特征点位置 face_field包含landmark72时返回
  • 150点关键点返回结果
字段 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
face_token string 人脸标志
location array 人脸在图片中的位置
+left double 人脸区域离左边界的距离
+top double 人脸区域离上边界的距离
+width double 人脸区域的宽度
+height double 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 double 人脸置信度,范围0-1
angle array 人脸旋转参数 具体说明参考人脸空间姿态角参考
+yaw double 三维旋转之左右旋转角[-90(左), 90(右)]
+pitch double 三维旋转之俯仰角度[-90(上), 90(下)]
+roll double 平面内旋转角[-180(逆时针), 180(顺时针)]
landmark150 array 150个特征点位置 face_field包含landmark150时返回
  • 201点关键点返回结果
字段 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
face_token string 人脸标志
location array 人脸在图片中的位置
+left double 人脸区域离左边界的距离
+top double 人脸区域离上边界的距离
+width double 人脸区域的宽度
+height double 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 double 人脸置信度,范围0-1
angle array 人脸旋转参数 具体说明参考人脸空间姿态角参考
+yaw double 三维旋转之左右旋转角[-90(左), 90(右)]
+pitch double 三维旋转之俯仰角度[-90(上), 90(下)]
+roll double 平面内旋转角[-180(逆时针), 180(顺时针)]
landmark201 array 201个特征点位置 face_field包含landmark201时返回
  • 72点关键点返回示例

    {
      "error_code": 0,
      "error_msg": "SUCCESS",
      "log_id": 1928749930,
      "timestamp": 1587886328,
      "cached": 0,
      "result": {
          "face_num": 1,
          "face_list": [
              {
                  "face_token": "d80fc864a9f11ca97f753b7fd6ef3092",
                  "location": {
                      "left": 148.2,
                      "top": 207.76,
                      "width": 293,
                      "height": 265,
                      "rotation": 0
                  },
                  "face_probability": 1,
                  "angle": {
                      "yaw": 19.13,
                      "pitch": 17.13,
                      "roll": -3.5
                  },
                  "landmark201": [
                      {
                          "cheek_right_1": {
                              "x": 152.91139221191,
                              "y": 234.10575866699
                          },
                          "cheek_right_3": {
                              "x": 153.21405029297,
                              "y": 275.29922485352
                          },
                          "cheek_right_5": {
                              "x": 159.1178894043,
                              "y": 317.43710327148
                          },
                          "cheek_right_7": {
                              "x": 171.67828369141,
                              "y": 359.82891845703
                          },
                          "cheek_right_9": {
                              "x": 187.34191894531,
                              "y": 402.29333496094
                          },
                          "cheek_right_11": {
                              "x": 209.47039794922,
                              "y": 448.70611572266
                          },
                          "chin_2": {
                              "x": 244.76583862305,
                              "y": 480.13912963867
                          },
                          "cheek_left_11": {
                              "x": 300.36502075195,
                              "y": 472.90335083008
                          },
                          "cheek_left_9": {
                              "x": 355.99075317383,
                              "y": 439.84826660156
                          },
                          "cheek_left_7": {
                              "x": 402.11898803711,
                              "y": 393.20904541016
                          },
                          "cheek_left_5": {
                              "x": 427.60656738281,
                              "y": 340.88400268555
                          },
                          "cheek_left_3": {
                              "x": 442.78765869141,
                              "y": 287.72296142578
                          },
                          "cheek_left_1": {
                              "x": 453.259765625,
                              "y": 234.46209716797
                          },
                          "eye_right_corner_right": {
                              "x": 166.43855285645,
                              "y": 245.62696838379
                          },
                          "eye_right_eyelid_upper_2": {
                              "x": 178.73571777344,
                              "y": 233.48094177246
                          },
                          "eye_right_eyelid_upper_4": {
                              "x": 194.54188537598,
                              "y": 231.23136901855
                          },
                          "eye_right_eyelid_upper_6": {
                              "x": 209.59561157227,
                              "y": 238.01022338867
                          },
                          "eye_right_corner_left": {
                              "x": 219.60101318359,
                              "y": 252.86766052246
                          },
                          "eye_right_eyelid_lower_6": {
                              "x": 206.45573425293,
                              "y": 256.78121948242
                          },
                          "eye_right_eyelid_lower_4": {
                              "x": 191.26301574707,
                              "y": 257.60192871094
                          },
                          "eye_right_eyelid_lower_2": {
                              "x": 177.1402130127,
                              "y": 253.22375488281
                          },
                          "eye_right_eyeball_center": {
                              "x": 197.69207763672,
                              "y": 242.78115844727
                          },
                          "eyebrow_right_corner_right": {
                              "x": 152.5193939209,
                              "y": 218.0311126709
                          },
                          "eyebrow_right_upper_2": {
                              "x": 166.62945556641,
                              "y": 206.35087585449
                          },
                          "eyebrow_right_upper_3": {
                              "x": 183.5559387207,
                              "y": 209.04162597656
                          },
                          "eyebrow_right_upper_4": {
                              "x": 200.37629699707,
                              "y": 216.20118713379
                          },
                          "eyebrow_right_corner_left": {
                              "x": 215.19021606445,
                              "y": 231.66654968262
                          },
                          "eyebrow_right_lower_3": {
                              "x": 197.2017364502,
                              "y": 226.71070861816
                          },
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              }
          ]
      }
    }
  • 150点关键点返回示例

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        "error_msg": "SUCCESS",
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                        "mouth_lip_lower_inner_4": {
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                        "mouth_lip_lower_inner_2": {
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                        "mouth_lip_lower_inner_1": {
                            "x": 70.65,
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                }
            ]
        }
    }
    • 201点关键点返回示例
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      "error_msg": "SUCCESS",
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      "timestamp": 1587886328,
      "cached": 0,
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                          "x": 59.937400817871,
                          "y": 189.02279663086
                      },
                      "iris_left_16": {
                          "x": 59.994979858398,
                          "y": 188.47799682617
                      },
                      "iris_left_17": {
                          "x": 59.908092498779,
                          "y": 187.91714477539
                      },
                      "iris_left_18": {
                          "x": 59.693229675293,
                          "y": 187.42846679688
                      },
                      "iris_left_19": {
                          "x": 59.357315063477,
                          "y": 186.98899841309
                      },
                      "iris_left_20": {
                          "x": 58.83500289917,
                          "y": 186.74018859863
                      },
                      "iris_right_1": {
                          "x": 77.913948059082,
                          "y": 186.52035522461
                      },
                      "iris_right_2": {
                          "x": 77.751182556152,
                          "y": 184.79627990723
                      },
                      "iris_right_3": {
                          "x": 77.291893005371,
                          "y": 184.87088012695
                      },
                      "iris_right_4": {
                          "x": 76.81241607666,
                          "y": 185.17738342285
                      },
                      "iris_right_5": {
                          "x": 76.51399230957,
                          "y": 185.63529968262
                      },
                      "iris_right_6": {
                          "x": 76.399871826172,
                          "y": 186.14614868164
                      },
                      "iris_right_7": {
                          "x": 76.425010681152,
                          "y": 186.71411132812
                      },
                      "iris_right_8": {
                          "x": 76.59375,
                          "y": 187.21925354004
                      },
                      "iris_right_9": {
                          "x": 76.89958190918,
                          "y": 187.63000488281
                      },
                      "iris_right_10": {
                          "x": 77.306015014648,
                          "y": 187.93461608887
                      },
                      "iris_right_11": {
                          "x": 77.76798248291,
                          "y": 188.10162353516
                      },
                      "iris_right_12": {
                          "x": 78.355964660645,
                          "y": 188.07786560059
                      },
                      "iris_right_13": {
                          "x": 78.838737487793,
                          "y": 187.83233642578
                      },
                      "iris_right_14": {
                          "x": 79.188194274902,
                          "y": 187.45365905762
                      },
                      "iris_right_15": {
                          "x": 79.389739990234,
                          "y": 186.96867370605
                      },
                      "iris_right_16": {
                          "x": 79.451263427734,
                          "y": 186.44125366211
                      },
                      "iris_right_17": {
                          "x": 79.35481262207,
                          "y": 185.87980651855
                      },
                      "iris_right_18": {
                          "x": 79.112213134766,
                          "y": 185.42335510254
                      },
                      "iris_right_19": {
                          "x": 78.747856140137,
                          "y": 185.04452514648
                      },
                      "iris_right_20": {
                          "x": 78.234527587891,
                          "y": 184.81198120117
                      },
                      "forehead_center": {
                          "x": 63.854957580566,
                          "y": 161.62615966797
                      },
                      "forehead_right_1": {
                          "x": 56.716361999512,
                          "y": 162.98860168457
                      },
                      "forehead_right_2": {
                          "x": 50.169933319092,
                          "y": 165.94499206543
                      },
                      "forehead_right_3": {
                          "x": 45.235385894775,
                          "y": 171.05480957031
                      },
                      "forehead_right_4": {
                          "x": 42.774684906006,
                          "y": 177.78215026855
                      },
                      "forehead_right_5": {
                          "x": 42.371360778809,
                          "y": 185.02729797363
                      },
                      "forehead_left_1": {
                          "x": 70.29483795166,
                          "y": 161.40893554688
                      },
                      "forehead_left_2": {
                          "x": 76.429832458496,
                          "y": 163.07518005371
                      },
                      "forehead_left_3": {
                          "x": 81.494247436523,
                          "y": 166.90705871582
                      },
                      "forehead_left_4": {
                          "x": 85.017692565918,
                          "y": 172.2216796875
                      },
                      "forehead_left_5": {
                          "x": 87.215446472168,
                          "y": 178.24891662598
                      }
                  }
              }
          ]
      }
    }

人脸空间姿态角参考

姿态角分为Pitch、Roll、Yaw,用于表示人脸在空间三维坐标系内的角度,常用于判断识别角度的界限值。 各角度阈值如下:

  • Pitch:三维旋转之俯仰角度,范围:[-90(上), 90(下)],推荐俯仰角绝对值不大于20度;
  • Roll:平面内旋转角,范围:[-180(逆时针), 180(顺时针)],推荐旋转角绝对值不大于20度;
  • Yaw:三维旋转之左右旋转角,范围:[-90(左), 90(右)],推荐旋转角绝对值不大于20度;

各角度范围示意图如下:

示意图

72个关键点示意图

对应landmark72个点的顺序,序号从0-71,且每个关键点有对应的英文命名作为参数名; 关键点名称对应关系如下图

75d76544102575308024ebace.png

150个关键点示意图

对应landmark150个点的顺序,序号从0-149,且每个关键点有对应的英文命名作为参数名; 关键点名称对应关系如下图

201个关键点示意图

53AE2D36-752F-4ECE-9A27-C1AEE536D327_1_201_a_7586aca.jpeg

对应landmark201个点的顺序,序号从0-200,且每个关键点有对应的英文命名作为参数名; 关键点名称对应关系如下图

71efb8a246caabd8992354de4.png

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