Gemini Robotics ER 2 可指向物件、在影片中追蹤物件、使用定界框偵測物件，以及生成移動軌跡。本頁所有範例都使用 generate_content 的自然語言提示。
如需完整的可執行程式碼，請參閱機器人技術錦囊妙計。
指向物體
以下範例會找出圖片中的特定物件，並傳回正規化的 [y, x] 座標：
Python
from google import genai
from google.genai import types
PROMPT = """
Point to no more than 10 items in the image. The label returned
should be an identifying name for the object detected.
The answer should follow the json format: [{"point": <point>,
"label": <label1>}, ...]. The points are in [y, x] format
normalized to 0-1000.
"""
client = genai.Client(
enterprise=True,
project="your-project-id",
location="global",
)
# Load your image
with open("my-image.png", 'rb') as f:
image_bytes = f.read()
image_response = client.models.generate_content(
model="gemini-robotics-er-2-preview",
contents=[
types.Part.from_bytes(
data=image_bytes,
mime_type='image/png',
),
PROMPT
],
config = types.GenerateContentConfig(
thinking_config=types.ThinkingConfig(
thinking_level=types.ThinkingLevel.HIGH
)
)
)
print(image_response.text)
REST
# First, ensure you have the image file locally.
# Encode the image to base64
IMAGE_BASE64=$(base64 -w 0 my-image.png)
# Set your Google Cloud project and location.
export PROJECT_ID="your-project-id"
export LOCATION="global"
export MODEL="gemini-robotics-er-2-preview"
curl -X POST \
"https://aiplatform.googleapis.com/v1/projects/${PROJECT_ID}/locations/${LOCATION}/publishers/google/models/${MODEL}:generateContent" \
-H "Authorization: Bearer $(gcloud auth application-default print-access-token)" \
-H "Content-Type: application/json" \
-d '{
"contents": [
{
"parts": [
{
"inlineData": {
"mimeType": "image/png",
"data": "'"${IMAGE_BASE64}"'"
}
},
{
"text": "Point to no more than 10 items in the image. The label returned should be an identifying name for the object detected. The answer should follow the json format: [{\"point\": [y, x], \"label\": <label1>}, ...]. The points are in [y, x] format normalized to 0-1000."
}
]
}
],
"generationConfig": {
"thinkingConfig": {
"thinkingLevel": "HIGH"
}
}
}'
輸出內容會是包含物件的 JSON 陣列，每個物件都有 point (正規化 [y, x] 座標) 和識別物件的 label。
JSON
[
{"point": [376, 508], "label": "small banana"},
{"point": [287, 609], "label": "larger banana"},
{"point": [223, 303], "label": "pink starfruit"},
{"point": [435, 172], "label": "paper bag"},
{"point": [270, 786], "label": "green plastic bowl"},
{"point": [488, 775], "label": "metal measuring cup"},
{"point": [673, 580], "label": "dark blue bowl"},
{"point": [471, 353], "label": "light blue bowl"},
{"point": [492, 497], "label": "bread"},
{"point": [525, 429], "label": "lime"}
]
下圖是這些點的顯示範例：
追蹤影片中的物件
Gemini Robotics ER 2 也能分析影片影格，追蹤物件變化。
Python
from google import genai
from google.genai import types
client = genai.Client(
enterprise=True,
project="your-project-id",
location="global",
)
# Load your video
with open("my-video.mp4", 'rb') as f:
video_bytes = f.read()
prompt = """
Point to the red ball in every frame where it appears.
The answer should follow the json format: [{"point": [y, x],
"label": <label>}, ...]. The points are in [y, x] format
normalized to 0-1000. Return one entry per frame that contains
the object.
"""
image_response = client.models.generate_content(
model="gemini-robotics-er-2-preview",
contents=[
types.Part.from_bytes(
data=video_bytes,
mime_type='video/mp4',
),
prompt
],
config = types.GenerateContentConfig(
thinking_config=types.ThinkingConfig(
thinking_level=types.ThinkingLevel.HIGH
)
)
)
print(image_response.text)
物件偵測和定界框
除了點之外，您也可以提示模型傳回 2D 定界框，為偵測到的物件提供更多空間詳細資料。
Python
from google import genai
from google.genai import types
client = genai.Client(
enterprise=True,
project="your-project-id",
location="global",
)
with open("my-image.png", 'rb') as f:
image_bytes = f.read()
prompt = """
Detect all objects in this image and return bounding boxes.
The answer should follow the JSON format:
[{"label": <label>, "y": <y_min>, "x": <x_min>,
"y2": <y_max>, "x2": <x_max>}, ...]
where coordinates are normalized to 0-1000.
"""
image_response = client.models.generate_content(
model="gemini-robotics-er-2-preview",
contents=[
types.Part.from_bytes(
data=image_bytes,
mime_type='image/png',
),
prompt
],
config = types.GenerateContentConfig(
thinking_config=types.ThinkingConfig(
thinking_level=types.ThinkingLevel.LOW
)
)
)
print(image_response.text)
軌跡
Gemini Robotics ER 2 可生成定義軌跡的點序列，有助於引導機器人移動。
這個範例要求提供軌跡，將紅色筆移至收納盒，包括預估的中間路線控點。程式碼已縮減，只顯示提示。
Python
prompt = """
Generate a trajectory for the robotic arm to pick up the red pen
and place it in the organizer. Return a list of waypoints as JSON:
[{"step": <int>, "point": [y, x], "action": <description>}, ...]
where coordinates are normalized to 0-1000.
"""
為筆電騰出空間
這個範例說明 Gemini Robotics ER 2 如何推論空間。提示會要求模型找出需要移動的物件，以便為另一個項目騰出空間。
Python
from google import genai
from google.genai import types
client = genai.Client(
enterprise=True,
project="your-project-id",
location="global",
)
# Load your image
with open('path/to/image-with-objects.jpg', 'rb') as f:
image_bytes = f.read()
prompt = """
Point to the object that I need to remove to make room for my laptop
The answer should follow the JSON format: [{"point": <point>,
"label": <label1>}, ...]. The points are in [y, x] format normalized to 0-1000.
"""
image_response = client.models.generate_content(
model="gemini-robotics-er-2-preview",
contents=[
types.Part.from_bytes(
data=image_bytes,
mime_type='image/jpeg',
),
prompt
],
config = types.GenerateContentConfig(
thinking_config=types.ThinkingConfig(
thinking_level=types.ThinkingLevel.HIGH
)
)
)
print(image_response.text)
回覆內容包含物件的 2D 座標，可回答使用者的問題。在本例中，就是應移動以騰出空間給筆電的物件。
[
{"point": [672, 301], "label": "The object that I need to remove to make room for my laptop"}
]
自備午餐
模型也能提供多步驟任務的操作說明，並指出每個步驟的相關物件。這個範例說明模型如何規劃一系列步驟來打包午餐袋。
Python
from google import genai
from google.genai import types
client = genai.Client(
enterprise=True,
project="your-project-id",
location="global",
)
# Load your image and set up your prompt
with open('path/to/image-of-lunch.jpg', 'rb') as f:
image_bytes = f.read()
prompt = """
Explain how to pack the lunch box and lunch bag. Point to each
object that you refer to. Each point should be in the format:
[{"point": [y, x], "label": }], where the coordinates are
normalized between 0-1000.
"""
image_response = client.models.generate_content(
model="gemini-robotics-er-2-preview",
contents=[
types.Part.from_bytes(
data=image_bytes,
mime_type='image/jpeg',
),
prompt
],
config = types.GenerateContentConfig(
thinking_config=types.ThinkingConfig(
thinking_level=types.ThinkingLevel.HIGH
)
)
)
print(image_response.text)
這個提示的回應是一組逐步說明，說明如何根據圖片輸入內容打包午餐袋。
輸入圖片
模型輸出
Based on the image, here is a plan to pack the lunch box and lunch bag:
1. **Pack the fruit into the lunch box.** Place the apple, banana, red grapes, and green grapes into the blue lunch box.
2. **Add the spoon to the lunch box.** Put the blue spoon inside the lunch box as well.
3. **Close the lunch box.** Secure the lid on the blue lunch box.
4. **Place the lunch box inside the lunch bag.** Put the closed blue lunch box into the brown lunch bag.
5. **Pack the remaining items into the lunch bag.** Place the blue snack bar and the brown snack bar into the brown lunch bag.
Here is the list of objects and their locations:
* [{"point": [899, 440], "label": "apple"}]
* [{"point": [814, 363], "label": "banana"}]
* [{"point": [727, 470], "label": "red grapes"}]
* [{"point": [675, 608], "label": "green grapes"}]
* [{"point": [706, 529], "label": "blue lunch box"}]
* [{"point": [864, 517], "label": "blue spoon"}]
* [{"point": [499, 401], "label": "blue snack bar"}]
* [{"point": [614, 705], "label": "brown snack bar"}]
* [{"point": [448, 501], "label": "brown lunch bag"}]
後續步驟
如要進一步瞭解 Gemini Robotics ER 2，請參閱下列資源：
- 代理能力：執行程式碼、讀取儀表和圖片註解。
- 工作自動化調度管理：使用自訂機器人 API 執行長程工作。
- 影片理解：尋找特定時刻和進度分類。
- Gemini Robotics ER 2 總覽：功能和快速入門指南。
- Gemini Robotics ER 2 模型資訊：技術規格、權杖限制和支援功能。