Light-field imaging is an imaging technology that produces images conceivable to alter the focus in an existing picture. Contradicted to conventional pictures, all the ranges in an image shot with a light field camera can be focused to create a specific detail more honed or any portion of an obvious region.
Junior Graphic Designer
Light-field imaging (moreover known as plenoptic imaging) is an imaging technology that produces images conceivable to alter the focus in an existing picture. Contradicted to conventional pictures, all the ranges in an image shot with a light field camera can be focused to create a specific detail more honed or any portion of an obvious region.
In photography, focus works additionally to how it works within the human eye: After you focus on one portion of a scene, that portion is evident but everything else is slightly blurred. In conventional photography the image focus is chosen before the picture is shot which focus is organized within the resulting picture. In light-field photography, all the data required to focus on any portion of a picture is composed and put away with the computerized picture. Clicking on a given zone in a picture taken with a light-field camera is like looking specifically at objects in a scene before you; in case you press on a diverse point, the unused zone gets to be clear whereas the region you were focused on before it blurs.
Think of a light field as all the light passing through a given area or volume of space. How quickly this becomes important in filmmaking and visual effects can be seen in the context of cameras. A typical camera captures light rays entering through its lens. But to capture fields of light, multiple lenses must usually be used.
Light field technology aims to capture and simulate the human visual experience so that we can see a created scene as we see the real world. Depth, real stereo and light reflection when we move our head are artificially combined thanks to light field data to give the impression that you are “really there”.
There are a few other factors to consider when trying to create a realistic visual experience, such as resolution, color, and brightness. But light field technology certainly covers the most complicated aspects of this process.
The potential for light field applications is huge – and we’re almost there. How is the light field going to adapt on the future of cinema and VFX?
So far in film history we have seen several formats of 3D, and several VR for entertainment. Each time the last has improved, but none has been good enough to gain widespread acceptance. Instead, we resort to the standard displays in our living rooms.
With a light field camera and light field display, viewers could see 3D images on a screen without needing 3D glasses. Several companies have been involved in light field research, which is directly related to visual effects. They aim to use light fields in the creation of holographic displays by, among other things, looking for new ways to process the large amounts of data that are generated.
In fact, much of the light field research seems to be more applicable to immersive experiences, although just a few years ago it was touted as a technology that could make green screens obsolete thanks to depth composition.
The question that looms is whether we’ll see the technology effectively implemented into the production and exhibition pipeline, or whether light-field cinematography is just another gimmick. Time will tell.