来看看这个, Light Field Camera, 据说可以做成手持

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http://www.engadget.com/2011/06/22/light-field-camera-captures-unprecedented-images-lets-you-cho/

Lytro's light field camera captures 'unprecedented' images, lets you choose focus later
By Sharif Sakr posted Jun 22nd 2011 9:36AM

A Silicon Valley start-up called Lytro claims it's working on a consumer camera that uses light field technology to radically change the way we take, edit and experience photographs. Whereas a normal digital camera captures a snapshot of light hitting a sensor, a light field camera first separates rays of light in order to individually record their color, intensity and direction. This extra information opens up a world of possibilities, including the ability to focus on any depth of field within a taken photo, observe a 3D-type effect even without specs, and boost images taken in extremely low light. Although light field cameras have been around for some time, they haven't been commercially viable. Now though, Lytro has secured backing worth $50million to bring a "competitively priced" camera to market "later this year" -- we'll see if they can beat similar plenoptic technology from Adobe to market. Can't wait that long? Check out the interactive photo (click on Elvis to re-focus) after the break, plus a video that also shows off the 3D effect. Both are the definition of mind-blowing.
 
looks impressive.
very suitable for photography dummy like me!
 
硅谷新创业者Lytro公司22日发表一款新数码相机,吸引人的最大特色是可让使用者先拍照,再改变照片的焦点所在。这款相机预定今年稍后上市,售价将能和目前的消费相机相竞争。

Lytro表示,其技术能提供消费者许多好处(2D、3D),包括解决拍照时的对焦问题;并允许使用者只用一台相机就能拍出3D影像,不必用到两台。

使用者用Lytro原型机拍照后,透过目前的网络浏览器看照片时,只须用鼠标点选照片的不同部分,就能让照片里的不同物品成为焦点。Lytro说,既然使用者能先拍照再对焦,拍照时就不必先花时间对焦,也不必担心聚焦错的目标。

此外,即使是在低光源环境下,这种技术就算不开闪光灯也能发挥作用,因为采用的3D玻璃能强化清晰效果-模拟出3D影像,供使用者进行调整以展现不同视角。

Lytro采用的方法源自于史丹福大学的光场相机(light field camera)研究,这种相机拍照时撷取的信息量远多于传统数码相机。Lytro执行长吴仁(Ren Ng,音译)2006年撰写的史丹福大学博士论文,主题就是探讨如何大幅缩减这种相机的大小和成本。

吴仁说,相较于传统数码相机是记录像像感应器感应到的场景光线总量,光场相机则是个别记录色彩、亮度和光线的行进方向。他用录音过程做比喻,与其一次录下多位音乐家的演奏,现代的多音轨录音室会个别录音,以便在录音后调整每个音轨的音量和其它效果,再进行混音。

软件制造商阿朵比公司(Adobe)产品副总裁韩德瑞克森预测,Lytro将不缺竞争对手,除了阿朵比已为研究目的而开发光场相机原型机外,大型相机业者的科技部门和其它新创业者也纷纷发展相关技术。
 
继续用胶片,坐等数码技术新发展 :D
 
这个有点儿意思。
 
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