mage-processing technologies are typically used to correct captured image data through the adjustment of such image parameters as resolution, contrast, color tone and gradation. Canon is now conducting research into new image-processing technologies that go beyond such adjustments by breaking down captured images into basic components and then reconstructing them.
Photography is made possible by capturing the light rays that travel through a camera lens. If, ideally, all of the light rays that existed within a given area (light field) could be captured, then image processing deemed unachievable using today's technologies would become possible. Changing the perspective or angle of view after an image has been captured, for example, or the location or angle of the light shining on the subject would enable the relighting of a subject, making possible changes in the distribution of light and shadow, as well as the shapes and densities of shadows along with other lighting conditions.
Such image processing requires technology that captures and recreates light rays and texture-acquisition technology that provides information about a subject's appearance, along with photorealistic CG technology capable of reconstructing highly detailed images based on texture information.
Canon is intensively researching these technologies with a view to creating a new realm of image processing.