[{"data":1,"prerenderedAt":120},["ShallowReactive",2],{"blog-\u002Fblog\u002Fzh-hans\u002Fwhy-smartphone":3,"blog-\u002Fblog\u002Fzh-hans\u002Fwhy-smartphone-surround":94,"blog-\u002Fblog\u002Fzh-hans\u002Fwhy-smartphone-translations":103},{"id":4,"title":5,"author":6,"body":9,"date":78,"description":79,"draft":80,"extension":81,"image":82,"meta":83,"navigation":85,"path":86,"seo":87,"stem":88,"tags":89,"__hash__":93},"blogZhHans\u002Fblog\u002Fzh-hans\u002Fwhy-smartphone.md","为什么要用智能手机做肌肤分析",{"name":7,"picture":8},"Soo Ick Cho","\u002Fimages\u002Fblog\u002Fauthor-sooickcho.jpg",{"type":10,"value":11,"toc":70},"minimark",[12,16,20,23,26,29,32,35,38,41,45,48,51,54,57,61,64,67],[13,14,15],"p",{},"在前两篇文章里，我谈了对皮肤的“测量”并不稳定，以及就连专家的“判断”也无法归于一个答案。那么，剩下的问题只有一个：到底该用什么来看皮肤？我选择了智能手机。要解释原因，得先从诊所的设备说起。",[17,18,19],"h2",{"id":19},"诊所设备十年前就已经有了",[13,21,22],{},"去皮肤科诊所，会有给面部拍照并做分析的设备。这并不是什么新东西，十多年前就已经在用了。但这种方式有两个局限。",[13,24,25],{},"第一，结果留在诊所里。拍摄当天的照片和数值保存在诊所的服务器上，本人反而很难把它们调出来查看和管理。",[13,27,28],{},"第二，那个数值是依附于设备的。屏幕上显示“色素 70”，你也很难知道这到底算什么水平，更没法和另一家公司设备上的 70 作比较。上一篇文章里谈到的测量值互不兼容的问题，在这里再次重演。",[17,30,31],{"id":31},"智能手机的摄像头已经足够好了",[13,33,34],{},"因为我是皮肤科医生，很早以前就常有人把病变部位拍下来发给我看。从几年前开始，照片画质越来越好，已经到了仅凭照片就能大致判断状况的程度。",[13,36,37],{},"2020 年，我主持 NIA（韩国信息化振兴院）的数据采集项目，用单反相机和智能手机收集了皮肤照片数据。那时，智能手机摄像头的画质就已经相当不错了。",[13,39,40],{},"我感到，用智能手机定期检查自己的肌肤状态，并据此选择合适的解决方案，已经不再是遥远的事。",[17,42,44],{"id":43},"问题出在前置摄像头","问题出在“前置”摄像头",[13,46,47],{},"然而，要自己给面部肌肤拍照，就得用前置摄像头。我在这里撞上了墙。",[13,49,50],{},"2020 年前后，许多智能手机的前置摄像头还不到 1000 万像素，分辨率比后置摄像头低得多。而且前置摄像头会让面部变形，必须保持一定距离拍摄，这样一来，面部在照片中所占的区域就更小了。结果就是分辨率不足、噪点很多的照片，细纹和色素都糊成了一片。",[13,52,53],{},"原因很简单：前置摄像头的目的是把自拍拍得好看，精细的分辨率从来不是它的优先事项。",[13,55,56],{},"当然，用后置摄像头就能解决画质问题。但那样就得有人替你拍，而在那一刻，问题又回到了和在诊所拍照一样的地方：很难频繁、持续地积累数据。",[17,58,60],{"id":59},"所以我选择了等待","所以，我选择了等待",[13,62,63],{},"归纳起来，条件有两个：要能一个人轻松地积累数据，就必须是前置摄像头；同时，分辨率还得足够高。",[13,65,66],{},"然后，iPhone 17 的前置摄像头达到了 1800 万像素。我判断这已经够用了，并在这个判断之上创办了 InSkin Lab。",[13,68,69],{},"INSKINVIEW 之所以用一张自拍把肌肤分成六个维度来看，原因就在这里。记录留在自己手中，而不是诊所的服务器上；昨天和今天的比较，建立在同一标准之上，而不是某台设备的刻度上。这就是我等待技术成熟的原因。",{"title":71,"searchDepth":72,"depth":72,"links":73},"",2,[74,75,76,77],{"id":19,"depth":72,"text":19},{"id":31,"depth":72,"text":31},{"id":43,"depth":72,"text":44},{"id":59,"depth":72,"text":60},"2026-07-26","皮肤科诊所早已有了面部分析设备。那为什么还非得是智能手机，又为什么是现在？这是一篇关于这两个问题的记录。",false,"md","\u002Fimages\u002Fblog\u002F06e1a2a1-0445-4b8a-a296-8de6577895de.png",{"slug":84},"why-smartphone",true,"\u002Fblog\u002Fzh-hans\u002Fwhy-smartphone",{"title":5,"description":79},"blog\u002Fzh-hans\u002Fwhy-smartphone",[90,91,92],"智能手机肌肤分析","自拍","INSKINVIEW","bfHIYkm-sWiSlUG43Iduo3g3epSEuNSCYq-8cZvS2dc",[95,99],{"title":96,"path":97,"stem":98,"children":-1},"一次测量看不到的东西","\u002Fblog\u002Fzh-hans\u002Fwhy-measure-often","blog\u002Fzh-hans\u002Fwhy-measure-often",{"title":100,"path":101,"stem":102,"children":-1},"用 AI 评估皮肤意味着什么","\u002Fblog\u002Fzh-hans\u002Fhow-to-evaluate-skin","blog\u002Fzh-hans\u002Fhow-to-evaluate-skin",[104,108,112,116],{"code":105,"name":106,"path":107},"ko","한국어","\u002Fblog\u002Fwhy-smartphone",{"code":109,"name":110,"path":111},"en","English","\u002Fblog\u002Fen\u002Fwhy-smartphone",{"code":113,"name":114,"path":115},"ja","日本語","\u002Fblog\u002Fja\u002Fwhy-smartphone",{"code":117,"name":118,"path":119},"zh-hant","繁體中文","\u002Fblog\u002Fzh-hant\u002Fwhy-smartphone",1791649183002]