小米9 DXO評分造假坐實! - 手機討論
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By Olga
at 2019-04-04T19:16
at 2019-04-04T19:16
Table of Contents
中國的3G微博主鐘文澤寫過幾點關於DxO測試:
簡體中文,不喜勿入
https://www.weibo.com/1906286443/Hnc9hnHA4
① 收不收費?
收,只要是廠商送測的,就要收一筆錢,具體價格我不知道是多少,之前
有聽過是10萬美金一款機型,但這個數字無法確認真假。當然如果廠商不送測,一些重點
機型,DxO也會自己買來測試。
② 花錢送測萬一分數不滿意怎麼辦?
付費送測出的成績,廠商可以自己選擇公佈還是不公佈,
但不會因為付錢就改變測試成績。
③ 廠商如何提高DxO成績?
DxO會向付費廠商公佈自己的測試標準,比如什麼樣子的拍照會得到更高的分數
,哪部分是在評分體系裡更側重的。廠商獲取這部分信息後,如果認可DxO的標準可以帶
來更好的拍照(或宣傳)效果,可以參考著評分標準對手機拍照進行優化,從而提高分數
。之前一加的哪款手機曾經主打賣點是「鏡頭經過DxO調教」,我想可能與按照參考標準
改進了鏡頭表現有關。以上也是我瞭解的關於DxO的評測相關信息,並沒有直接接觸過,
因此不能百分百確認,另外隨著時間改變,測試流程可能也有微調。
關於第三點,他說得不太正確,
新潮電子徐林訪談過DxO,他回應鐘文澤,提供他之前的文章做補充:
他的原文是圖片長微博,是在去年華為P20 Pro期間做的訪談:
http://photo.weibo.com/h5/repost/reppic_id/1022:230796243aa37578794b8b7fe7
d8433288f77a
http://bit.ly/2FZjykb
(感謝Office OneNote的複製圖片文字功能)
今天上午的DxOMark聊完了,整理一下
1.DxOMark的評測,始終是以最終的照片結果為評分標準,
如何實現這些照片結果並不會成為評分的加分頂,
意思是技術不關我事,但底大一級壓死人以及出色的鏡頭素質,
在這裡就會得本,因為身體好嘛;
2.每款機型的評測,都會由2-3名工程師,歷時2-3周完成。
會拍攝1500張以上的照片和兩小時以上的視頻來進行測試,
所有的拍攝都基於自動模式下完成,DxO會始終考慮普通用戶的最基礎需求來進行測試。
DxO考慮的最優先,是準確真實的照片,而不是漂亮的照片,畫質優化演算法,
比如降噪、塗抹的情況,會影晌分數,但色彩演算法影響不大;
3.如果有機會在發佈之前拿到機器,會先期進行評測,
但評測機的要求是最起碼要是最終版硬體,在發佈上市後,還會自行購買
零售機型選行比對,以防出現送測超級小強的情況,
如果沒有在發佈會之前拿到機器,則是隨機進行零售機型的購買進行測試;
4.所有的測試結果報告,都免費在網上的提供,以供其他媒體進行補充性報導的素材,
並以此避免和其他媒體出現競爭關係;5.大部分的測試方式和環節都是公開的,
部分有所保留,以防廠商進行針對性優化,防止作弊;
另外,最高機密就是打分機制的權重部分,這個是不會告訴你的。
但如果DxO的測試結果與廠商出現在很大的偏差,那麼會加入互測的環節,解除問題。
但我之前了解到,DxO的打分,應該是元件:鏡頭:演算法=1:1:1,
而對比相機,手機提升得最快的,就是演算法,
在這一點上,DxO對於這方面技術的提升之快,自己都撓頭,
而各大頊下邊的其他小分,這個就更不能說出來了
6.DxO雖然很多測試是基於DSLR的測試來的,但也會與時俱進。
官方例子是‧比如5年前,手機說測夜景是沒有意義的,而現在已經有意義了;
現在DxO還是以主攝測試為主,但關於自拍的測試研究已經做得差不多了,不日會推出。
另外,DxO認為,以現在手機的體積,感光元件的面積依舊還有提升的空間
華為P20pro,2倍及以下的變焦,是由主+黑白來完成,3倍及以內,長焦會加入進來,
所以3倍以內都可以算是真實的變焦。所以,按DxO的測試原則來
看,P20/P20Pro一下子拉了這麼高的分數,還真不是虛的。
以上
---
裡頭提到DxO有上市後再買零售機,防止廠商送特規機來作弊,
但小米9是在發布會就公開成績吧,無法買到零售機
--
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手機
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