描述

本接口用于云端处理肢体检测的请求，返回图片中人像的肢体关键点检测信息。

版本

1.0

图片要求

图片格式：JPG、PNG。

调用 URL

    正式环境：https://openapi.meitu.com
    任务提交接口：https://openapi.meitu.com/api/v1/sdk/sync/push
    任务名称(task)：/v1/Body_Keypoint_Detection/487158
    任务类型(task_type)：formula

调用方法

POST

Content-Type: application/json

权限

开放平台接口签名

请求参数

是否必选	参数名	类型	参数说明
必选	params	string	算法参数（JSON 字符串）
必选	init_images	object[]	多媒体文件列表
必选	task	string	固定 `/v1/Body_Keypoint_Detection/487158`
必选	task_type	string	固定 `formula`
可选	sync_timeout	int	默认 30，同步超时时间

init_images 多媒体文件参数，结构说明如下

是否必选	参数名	类型	参数说明
必选	url	string	图片 URL 或 base64
必选	profile	object	属性信息描述

profile 属性信息描述

是否必选	参数名	类型	参数说明
必选	media_profiles	object	媒体属性信息
必选	version	string	固定 `v1`

media_profiles 媒体属性信息

是否必选	参数名	类型	参数说明
必选	media_data_type	string	`url` 表示 URL；`jpg` 等类型表示 base64

params 推理参数是 JSON 字符串，其结构说明如下

是否必选	字段	类型	说明
可选	rsp_media_type	string	默认 `url`；`jpg` 表示结果图像以 Base64 编码格式返回，`url` 表示以 URL 地址格式返回
必选	parameter	object	算法核心参数对象

parameter 算法参数详情

是否必选	参数名	类型	参数说明
可选	version	string	算法版本，默认 `1.0.0`

输入值示例

{
  "task": "/v1/Body_Keypoint_Detection/487158",
  "task_type": "formula",
  "init_images": [
    {
      "url": "https://obs.mtlab.meitu.com/public/EtRGxLI8ulQ43pGhuZfym9aYUD2PUbMP/MTcwOTE4MjgwMA==/58fdb25d-8e6f-4026-4a5e-45d9894190a4.png",
      "profile": {
        "media_profiles": {
          "media_data_type": "url"
        },
        "version": "v1"
      }
    }
  ],
  "params": "{\"rsp_media_type\":\"url\",\"parameter\":{\"version\":\"1.0.0\"}}",
  "sync_timeout": 30
}

返回值说明

注意，生成的结果，会定期清理，请及时下载保存

字段	类型	说明
request_id	string	请求标识
trace_id	string	链路追踪标识
code	int	业务状态码，`0` 表示请求受理成功
error_code	int	错误码，成功时为 `0`
message	string	业务信息
tips	any	补充提示，可为 null
data	object	任务状态和算法结果

data 中单个元素的字段说明

字段	类型	说明
status	int	状态码：-1 未找到任务；0 创建成功；1 执行中；2 失败；9 超时，使用查询接口查询；10 成功
result	object	算法结果
progress	number	任务进度
predict_elapsed	int	预计耗时，毫秒
create_time	int64	创建时间戳，毫秒
task_id	string	任务 ID
custom_task_id	string	客户自定义任务 ID
trace_id	string	链路追踪标识
client_info	string	客户端信息
init_images	object[]/null	输入媒体回显

result 中单个元素的字段说明

字段	类型	说明
id	string	任务唯一标识
urls	string[]	结果资源 URL 列表
images	string[]	返回的图片资源
parameters	object	算法参数信息，包含字符串类型的 `version`
data	object	算法原始返回数据
mtlab_res	object	MTLab 原始返回结果
media_info_list	object[]	媒体结果信息列表

result.data、result.mtlab_res 字段说明

字段	类型	说明
ErrorCode	int	算法错误码，`0` 表示成功
ErrorMsg	string	算法错误信息
error_code	int	同 `ErrorCode`
error_msg	string	同 `ErrorMsg`
media_info_list	object[]	媒体结果信息列表
msg_id	string	消息 ID
parameter	object	算法参数，包含字符串类型的 `version`

media_info_list 字段说明

字段	类型	说明
media_data	string	媒体数据，如图片 URL 或 Base64
media_extra	object	算法附加结果
media_profiles	object/null	媒体配置参数

media_extra 字段说明

字段	类型	说明
body_pose	array	肢体检测信息，包含图片中 N 个人像的肢体关键点信息；每个人像包含 14 个点，每个点为 `[x, y, score]`；关键点顺序见肢体关键点序号说明

body_pose 中每个关键点字段说明

字段	类型	说明
x	float	关键点横坐标，以图片左上角为 `(0, 0)`，示例值范围为 `0~1`
y	float	关键点纵坐标，以图片左上角为 `(0, 0)`，示例值范围为 `0~1`
score	float	关键点置信度，范围为 `[0, 1]`，值越高代表预测点的可信度越高

每个三元组表示一个关键点；[0, 0, 0] 表示该关键点未检测到；数组顺序与算法定义的关键点顺序一致。

当前 API 特有的错误代码与信息

ErrorCode 状态代码	错误信息	说明
20001	PROCESS_ERROR	处理错误

返回值示例

请求成功返回示例

{
  "request_id": "",
  "trace_id": "",
  "code": 0,
  "error_code": 0,
  "message": "success",
  "tips": null,
  "data": {
    "status": 10,
    "result": {
      "id": "t_mt1a3i5n7bfb3cb4d5-xxxx-416c-aca2-4ea85e2392d0",
      "urls": [""],
      "images": [""],
      "parameters": {
        "version": "1.0.0"
      },
      "data": {
        "ErrorCode": 0,
        "ErrorMsg": "",
        "error_code": 0,
        "error_msg": "",
        "media_info_list": [
          {
            "media_data": "",
            "media_extra": {
              "body_pose": [
                [
                  [0.382604, 0.237499, 0.960717],
                  [0.397724, 0.353015, 0.89843],
                  [0.313316, 0.413948, 0.875583],
                  [0.5135, 0.376142, 0.862831],
                  [0.31644, 0.526003, 0.829664],
                  [0.600144, 0.489705, 0.841293],
                  [0.480908, 0.576402, 0.791474],
                  [0.602069, 0.600498, 0.751575],
                  [0.415567, 0.600929, 0.638177],
                  [0.550402, 0.588666, 0.609929],
                  [0.31724, 0.587703, 0.800953],
                  [0.617525, 0.65204, 0.0674782],
                  [0.433666, 0.826302, 0.819607],
                  [0, 0, 0]
                ]
              ]
            },
            "media_profiles": null
          }
        ],
        "msg_id": "",
        "parameter": {
          "version": "1.0.0"
        }
      },
      "mtlab_res": {
        "ErrorCode": 0,
        "ErrorMsg": "",
        "error_code": 0,
        "error_msg": "",
        "media_info_list": [
          {
            "media_data": "",
            "media_extra": {
              "body_pose": [
                [
                  [0.382604, 0.237499, 0.960717],
                  [0.397724, 0.353015, 0.89843],
                  [0.313316, 0.413948, 0.875583],
                  [0.5135, 0.376142, 0.862831],
                  [0.31644, 0.526003, 0.829664],
                  [0.600144, 0.489705, 0.841293],
                  [0.480908, 0.576402, 0.791474],
                  [0.602069, 0.600498, 0.751575],
                  [0.415567, 0.600929, 0.638177],
                  [0.550402, 0.588666, 0.609929],
                  [0.31724, 0.587703, 0.800953],
                  [0.617525, 0.65204, 0.0674782],
                  [0.433666, 0.826302, 0.819607],
                  [0, 0, 0]
                ]
              ]
            },
            "media_profiles": null
          }
        ],
        "msg_id": "",
        "parameter": {
          "version": "1.0.0"
        }
      },
      "media_info_list": [
        {
          "media_data": "",
          "media_extra": {
            "body_pose": [
              [
                [0.382604, 0.237499, 0.960717],
                [0.397724, 0.353015, 0.89843],
                [0.313316, 0.413948, 0.875583],
                [0.5135, 0.376142, 0.862831],
                [0.31644, 0.526003, 0.829664],
                [0.600144, 0.489705, 0.841293],
                [0.480908, 0.576402, 0.791474],
                [0.602069, 0.600498, 0.751575],
                [0.415567, 0.600929, 0.638177],
                [0.550402, 0.588666, 0.609929],
                [0.31724, 0.587703, 0.800953],
                [0.617525, 0.65204, 0.0674782],
                [0.433666, 0.826302, 0.819607],
                [0, 0, 0]
              ]
            ]
          },
          "media_profiles": null
        }
      ]
    },
    "progress": 0,
    "predict_elapsed": 10000,
    "create_time": 1770357763826,
    "task_id": "t_mt1a3i5n7bfb3cb4d5-xxxx-416c-aca2-4ea85e2392d0",
    "custom_task_id": "",
    "trace_id": "",
    "client_info": "",
    "init_images": null
  }
}

需要查询返回示例

使用查询接口接口查询

Response Status：200

content-type 为 application/json; charset=utf-8

{
  "request_id": "",
  "trace_id": "",
  "code": 0,
  "error_code": 0,
  "message": "success",
  "tips": null,
  "data": {
    "status": 9,
    "result": {
      "id": "t_mt1a3i5n7b7a7ba41b-xxxx-4cdb-a0be-1fd951bd1ffc"
    },
    "progress": 0,
    "predict_elapsed": 10000,
    "create_time": 1770283596272,
    "task_id": "t_mt1a3i5n7b7a7ba41b-xxxx-4cdb-a0be-1fd951bd1ffc",
    "custom_task_id": "",
    "trace_id": "1e106f37-xxxx-4f2c-8bb2-f480ebae4dda",
    "client_info": "",
    "init_images": null
  }
}

请求失败返回示例

Response Status：400

content-type 为 application/json; charset=utf-8

{
  "request_id": "",
  "trace_id": "",
  "code": 20001,
  "error_code": 20001,
  "message": "PROCESS_ERROR",
  "tips": null,
  "data": {
    "status": 2,
    "result": {
      "ErrorCode": 20001,
      "ErrorMsg": "PROCESS_ERROR"
    },
    "progress": 0,
    "predict_elapsed": 0,
    "create_time": 0,
    "task_id": "",
    "custom_task_id": "",
    "trace_id": "",
    "client_info": "",
    "init_images": null
  }
}

通用的错误代码与信息

详见 API 错误码

SDK 调用示例

Python

import json

import requests
from sign_sdk import sign

def api_call_example():
    key = "your_api_key"
    secret = "your_api_secret"
    url = "https://openapi.meitu.com/api/v1/sdk/sync/push"
    method = "POST"

    headers = {
        "Content-Type": "application/json",
        sign.HeaderHost: "openapi.meitu.com",
    }
    inner_params = {
        "rsp_media_type": "url",
        "parameter": {"version": "1.0.0"},
    }
    payload = {
        "task": "/v1/Body_Keypoint_Detection/487158",
        "task_type": "formula",
        "init_images": [
            {
                "url": "https://obs.mtlab.meitu.com/public/EtRGxLI8ulQ43pGhuZfym9aYUD2PUbMP/MTcwOTE4MjgwMA==/58fdb25d-8e6f-4026-4a5e-45d9894190a4.png",
                "profile": {
                    "media_profiles": {"media_data_type": "url"},
                    "version": "v1",
                },
            }
        ],
        "params": json.dumps(inner_params, ensure_ascii=False),
        "sync_timeout": 30,
    }
    body = json.dumps(payload, ensure_ascii=False)

    signer = sign.Signer(key, secret)
    signed_request = signer.sign(url, method, headers, body)
    response = requests.Session().send(signed_request)
    print(f"Status: {response.status_code}")
    print(f"Response: {response.text}")

if __name__ == "__main__":
    api_call_example()

Go

package main

import (
	"fmt"
	"io"
	"net/http"

	"github.com/mtlab/api/signer"
)

func main() {
	key := "your_api_key"
	secret := "your_api_secret"
	signObj := signer.NewSigner(key, secret)

	url := "https://openapi.meitu.com/api/v1/sdk/sync/push"
	method := http.MethodPost
	headers := make(http.Header)
	headers.Set(signer.HeaderHost, "openapi.meitu.com")
	headers.Set("Content-Type", "application/json")

	body := `{
  "task": "/v1/Body_Keypoint_Detection/487158",
  "task_type": "formula",
  "init_images": [{
    "url": "https://obs.mtlab.meitu.com/public/EtRGxLI8ulQ43pGhuZfym9aYUD2PUbMP/MTcwOTE4MjgwMA==/58fdb25d-8e6f-4026-4a5e-45d9894190a4.png",
    "profile": {
      "media_profiles": {"media_data_type": "url"},
      "version": "v1"
    }
  }],
  "params": "{\"rsp_media_type\":\"url\",\"parameter\":{\"version\":\"1.0.0\"}}",
  "sync_timeout": 30
}`

	req, err := signObj.Sign(url, method, headers, body)
	if err != nil {
		fmt.Println("Failed to sign request:", err)
		return
	}

	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		fmt.Println("Failed to send request:", err)
		return
	}
	defer resp.Body.Close()

	responseBody, err := io.ReadAll(resp.Body)
	if err != nil {
		fmt.Println("Read response failed:", err)
		return
	}
	fmt.Println("Response:", resp.StatusCode, string(responseBody))
}

PHP

<?php
require 'signer.php';

$key = 'your_api_key';
$secret = 'your_api_secret';
$signer = new Signer($key, $secret);

$url = 'https://openapi.meitu.com/api/v1/sdk/sync/push';
$method = 'POST';
$headers = ['Content-Type' => 'application/json'];

$innerParams = json_encode([
    'rsp_media_type' => 'url',
    'parameter' => ['version' => '1.0.0'],
]);

$body = json_encode([
    'task' => '/v1/Body_Keypoint_Detection/487158',
    'task_type' => 'formula',
    'init_images' => [
        [
            'url' => 'https://obs.mtlab.meitu.com/public/EtRGxLI8ulQ43pGhuZfym9aYUD2PUbMP/MTcwOTE4MjgwMA==/58fdb25d-8e6f-4026-4a5e-45d9894190a4.png',
            'profile' => [
                'media_profiles' => ['media_data_type' => 'url'],
                'version' => 'v1',
            ],
        ],
    ],
    'params' => $innerParams,
    'sync_timeout' => 30,
]);

$curl = $signer->sign($url, $method, $headers, $body);
$response = curl_exec($curl);
$status = curl_getinfo($curl, CURLINFO_HTTP_CODE);

if ($status === 0) {
    echo 'Error: ' . curl_error($curl);
} else {
    echo "Status: {$status}\n";
    echo "Response: {$response}\n";
}
curl_close($curl);
?>

Java

package com.meitu.openai.common;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.nio.charset.StandardCharsets;
import java.util.HashMap;
import java.util.Map;

public class Main {
    public static void main(String[] args) throws Exception {
        Signer signer = new Signer("your_api_key", "your_api_secret");
        String url = "https://openapi.meitu.com/api/v1/sdk/sync/push";
        String method = "POST";

        Map<String, String> headers = new HashMap<>();
        headers.put("Content-Type", "application/json");
        headers.put(Signer.HeaderHost, "openapi.meitu.com");

        String body = "{\n" +
                "  \"task\": \"/v1/Body_Keypoint_Detection/487158\",\n" +
                "  \"task_type\": \"formula\",\n" +
                "  \"init_images\": [{\n" +
                "    \"url\": \"https://obs.mtlab.meitu.com/public/EtRGxLI8ulQ43pGhuZfym9aYUD2PUbMP/MTcwOTE4MjgwMA==/58fdb25d-8e6f-4026-4a5e-45d9894190a4.png\",\n" +
                "    \"profile\": {\n" +
                "      \"media_profiles\": {\"media_data_type\": \"url\"},\n" +
                "      \"version\": \"v1\"\n" +
                "    }\n" +
                "  }],\n" +
                "  \"params\": \"{\\\"rsp_media_type\\\":\\\"url\\\",\\\"parameter\\\":{\\\"version\\\":\\\"1.0.0\\\"}}\",\n" +
                "  \"sync_timeout\": 30\n" +
                "}";

        Map<String, String> signedHeaders = signer.sign(url, method, headers, body);
        HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection();
        connection.setRequestMethod(method);
        for (Map.Entry<String, String> entry : signedHeaders.entrySet()) {
            connection.setRequestProperty(entry.getKey(), entry.getValue());
        }
        connection.setDoOutput(true);
        connection.getOutputStream().write(body.getBytes(StandardCharsets.UTF_8));

        int status = connection.getResponseCode();
        InputStream stream = status >= 400
                ? connection.getErrorStream()
                : connection.getInputStream();
        try (BufferedReader reader = new BufferedReader(new InputStreamReader(stream))) {
            StringBuilder response = new StringBuilder();
            String line;
            while ((line = reader.readLine()) != null) {
                response.append(line);
            }
            System.out.println("Response: " + status + " " + response);
        }
    }
}