Amazon says your semi-nude pictures will be automatically deleted from its servers after 3D body images are rendered. In return, you’ll get an accurate estimate of your body fat percentage.

亚马逊表示，渲染3D人体图像后，您的半裸图片将自动从其服务器中删除。 作为回报，您将获得对体内脂肪百分比的准确估计。

By Michael Kan

由 迈克尔·侃

To get the most out of Amazon’s new wearable wristband, you’ll need to send the company semi-nude pictures of yourself.

为了充分利用亚马逊的新型可穿戴腕带 ，您需要向公司发送自己的半裸照。

The Halo is a fitness tracker that promises to improve your health. But to fully enjoy the benefits, Amazon needs some personal data, including how much fat is on your body. The company could’ve just asked for your weight and height. However, the health experts behind Halo want to instead calculate your body fat percentage, citing it as a better indicator for health and longevity.

Halo是一款健身追踪器 ，有望改善您的健康状况。 但是要充分享受这些好处，亚马逊需要一些个人数据，包括您体内的脂肪量。 该公司可能只是询问您的体重和身高。 但是，Halo背后的健康专家希望改为计算您的体内脂肪百分比，理由是它可以更好地指示健康和长寿。

To get an accurate measurement, the company created “Body,” a feature in the app for Halo that uses computer vision and machine-learning algorithms to estimate your body fat percentage. The catch? The technology only works if it can actually view images of your semi-nude self.

为了获得准确的测量结果，该公司在Halo应用程序中创建了“身体”功能，该功能使用计算机视觉和机器学习算法来估算您的体内脂肪百分比。 抓住？ 该技术只有在可以实际查看半裸身的图像时才能起作用。

In a blog post, Amazon Medical Officer Maulik Majmudar wrote how users can do this with the help of the Halo app and their smartphone’s camera: “You’ll need to wear tight, minimal clothing (think a sports bra and bike shorts for women; boxers or briefs for men), tie up your hair, and keep about 4–6 feet of space between you and your phone. Uniform lighting from the front is ideal. When you’re ready, the Amazon Halo app shows you exactly how to stand and guides you through taking four scan images-front, back, and each side.”

在博客文章中 ，亚马逊医务人员毛利克·马伊穆达(Maulik Majmudar)写道，用户如何借助Halo应用程序和智能手机的摄像头来做到这一点：“您需要穿着紧身，穿着最少的衣服(例如女性的运动胸罩和自行车短裤；男士平角裤或三角裤)，绑好头发，并在手机与手机之间保持约4–6英尺的空间。 从正面均匀照明是理想的。 当您准备就绪时，Amazon Halo应用程序将向您显示确切的站立方式，并指导您拍摄正面，背面和每侧四个扫描图像。”

The pictures are then sent to Amazon’s servers, which can begin rendering a 3D model of your body and calculating the body fat percentage estimate. To keep the model accurate, you should also continue sending Amazon your seminudes. “We recommend taking scans every 2 weeks and observe trends over a longer duration to track progress,” Majmudar added.

然后将图片发送到亚马逊的服务器，后者可以开始渲染您的身体的3D模型并计算体内脂肪百分比估算值。 为了保持模型的准确性，您还应该继续向您的半裸发送给亚马逊。 “我们建议每2周进行一次扫描，并观察较长时间的趋势以跟踪进度，” Majmudar补充说。

If this all sounds like a terrible idea, Amazon says don’t worry. “Your body scan images are automatically deleted from the cloud after processing,” Majmudar wrote. “After that, the images and resulting personalized 3D body model are only stored locally on your phone. This means no one but you ever sees them, unless you choose to share them with a friend or coach-or for a future #transformationtuesday post.”

如果这一切听起来像一个可怕的主意，亚马逊表示不要担心。 “您的身体扫描图像经过处理后会自动从云中删除，” Majmudar写道。 “之后，图像和生成的个性化3D人体模型仅存储在您的手机本地。 这意味着没有人可以看到它们，除非您选择与朋友或教练共享它们，或者将来要在#transformationtuesday帖子中分享。”

Your data on the Halo app can also be deleted. But conversely, if you trust Amazon, you can save all your body-scanned images to your Amazon cloud storage account. “You can opt back out any time directly from the Amazon Halo app and your images will automatically be deleted from the cloud,” Majmudar added.

您在Halo应用程序上的数据也可以删除。 相反，如果您信任Amazon，则可以将所有人体扫描图像保存到Amazon云存储帐户中。 “您可以随时直接从Amazon Halo应用程序中退出，并且您的图像将自动从云中删除，” Majmudar补充说。

Amazon says it built Halo with privacy in mind. Still, the fitness tracker is asking for users to give up private data that goes well beyond heartbeats and calories tracked. The other eyebrow-raising feature, called Tone, says it can measure your stress levels by hearing your voice. However, to get the most out of it, Amazon recommends you let the feature run on your Halo smartband throughout the day. This will allow the fitness tracker’s microphones to take short samples of your speech to measure when you’re stressed out, feeling sad, or happy.

亚马逊表示，在打造Halo时考虑到了隐私。 尽管如此，健身追踪器仍在要求用户放弃远远超出心跳和追踪卡路里的私人数据。 另一个提高眉毛的功能称为Tone，它可以通过听到声音来测量压力水平。 但是，为了充分利用它，Amazon建议您让该功能全天在Halo智能手环上运行。 这将使健身追踪器的麦克风对您的语音进行简短采样，以测量您在压力大，悲伤或快乐时的状态。

The constant recording sounds pretty invasive. But again, Amazon says don’t worry. In this case, the speech samples are never sent to the company’s servers. “If you choose to turn the feature on by creating a personal voice profile, your Tone speech samples are processed locally on your phone and deleted automatically after processing,” Majmudar wrote.

持续的录音听起来非常具有侵略性。 但再次，亚马逊说不要担心。 在这种情况下，语音样本永远不会发送到公司的服务器。 “如果您选择通过创建个人语音配置文件来打开该功能，则您的Tone语音样本将在手机上本地处理，并在处理后自动删除，” Majmudar写道。

The company also claims Tone is smart enough to only recognize your voice, and not others. So the microphones on the fitness band will remain off if your friend or family member is talking to you.

该公司还声称Tone足够聪明，只能识别您的声音，而不会识别其他人。 因此，如果您的朋友或家人正在与您聊天，健身带上的麦克风将保持关闭状态。

Still, all this assumes Halo will run without any bugs or be abused when history has shown tech products can often infringe on people’s privacy, intentionally or not.

尽管如此，所有这一切都假定Halo将在没有任何错误的情况下运行，或者在历史证明高科技产品经常有意或无意侵犯人们的隐私时被滥用。

Stay tuned for our review of Amazon’s Halo, when we can go over the privacy implications. For now, the product is up for sale for $64.99, but only for users who request early access to the device. Once six months is up, buyers will also need to pay $3.99 a month for body fat scanning, voice analysis, and other functions.

请关注我们对亚马逊的Halo的评论，以了解有关隐私的信息。 目前，该产品的售价为64.99美元，但仅适用于要求提早使用该设备的用户。 六个月后，购买者还需要每月支付3.99美元，用于身体脂肪扫描，语音分析和其他功能。

Originally published at https://www.pcmag.com.

最初发布在 https://www.pcmag.com 。