Patent ID: 8570426

Claim:
A method of operating a video acquisition device which acquires refocusable light field video data, the method comprising: acquiring first refocusable light field video data of a scene; storing first refocusable video data which is representative of the first refocusable light field video data; acquiring second refocusable light field video data of the scene after acquiring the first refocusable light field video data; determining a first virtual focus parameter using the second refocusable light field video data; generating first video data using the stored first refocusable video data and the first virtual focus parameter, wherein the first video data comprises a focus depth that is different from an optical focus depth of the first refocusable light field video data; and outputting the first video data, wherein the first and second refocusable light field video data each comprise a representation having at least four dimensions and comprising at least an indication of a direction of travel of light.