Mon, Dec 01, 2014 - Page 11 News List

New light-field camera chip heralds photographic revolution
「光場相機晶片」 引爆相機革命

A researcher holds up a modified digital camera with a new light-field chip in this photo taken in Taipei on Nov. 20.
一名研究員十一月二十日在台北手拿裝有「光場相機晶片」的改良式數位相機。

Photo: Wu Po-hsuan, Liberty Times
照片:自由時報記者吳柏軒

No longer will you have to spend time focusing shots. Researchers at National Taiwan University and National Tsing Hua University have spent the last two years developing a light-field camera chip that can record all the light in the scene at the moment of capture, and the photographer can then adjust the focus and the depth of field as they please in post production. In the future, this could also be used in mobile devices like phones, so that everyone can be an expert photographer.

National Taiwan University vice president and engineering professor Chen Liang-gee and National Tsing Hua University assistant professor Huang Chao-tsung formed a research team together and spent two years researching light field chips in depth, successfully developing 5D light-field imaging to capture depth within the scene. Huang says that the chip processor can record 25 angles simultaneously, “just like the compound eye of a fly” and, using computer calculations, attain the same effect as the human eye.

Chen believes that the light-field chip overcomes the shortcomings of cameras only being able to record at a single plane of focus with a set depth of field. By recording all of the light at one time, the photographer can take their time adjusting the focus and depth of field as they want back home. In addition, the chip reduces the need for other camera components, saving at least a half to a third of space, so that in the future digital cameras and smart phones can be even slimmer. Even though changeable focus lenses are still being developed, Taiwan is a global leader in chip processor technology, and this has already created a buzz in Silicon Valley in the US. In the future, it will spark a new photographic revolution.

(Liberty Times, translated by Paul Cooper)

TODAY’S WORDS
今日單字

1. depth of field n. phr.

景深 (jing3 shen1)

例: Shallow depth of field in a photo creates a pleasing blurred background to portraits.

(景深較淺的照片,可為肖像背景營造出一股悅目的模糊感。)

2. shortcoming n.

缺點 (que1 dian3)

例: He’s a nice person, despite his shortcomings.

(儘管他有缺點,他是位好人。)

3. create a buzz v. phr.

引起熱切關注 (yin3 qi3 re4 qie4 guan1 zhu4)

例: The reports of a new breakthrough in quantum theory are creating a buzz in the scientific community.

(量子力學突破性新發展的報導,正引起科學界的熱切關注。)


以後拍照不用對焦對半天了。台灣大學與清華大學花兩年研發「光場相機晶片」,能在拍照當下紀錄現場所有光線,攝影師後製便可任意調整照片的焦距及景深等,未來能運用到手機等行動裝置,讓人人都可化身攝影高手。

台大副校長暨電機系教授陳良基與清華大學助理教授黃朝宗共組的研究團隊,花兩年時間深入研究光場晶片,成功研發出以五視角光場視訊,取得場景深度,黃朝宗說:「就像是蒼蠅的複眼一樣」晶片處理器能同時記錄二十五個角度,並以電腦運算達到與人眼同樣功能。

陳良基認為,光場晶片突破以前相機僅能記錄單一焦段、景深的缺點,一次錄下所有光線效果,攝影者回家可以慢慢調整想要的焦點或景深,且晶片壓縮了其他相機元件,至少省下一半到三分之一的空間,可讓未來數位相機、智慧型手機等更輕薄,雖改變焦段的鏡頭已有研發,但晶片處理器的技術台灣領先全球,已引起美國矽谷熱切關注,未來將引爆攝影新革命。

(自由時報記者吳柏軒)

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