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US 9,081,262 B2Granted
Methods and apparatus for ultra-fast camera
AssigneeMassachusetts Institute of Technology
InventorsRamesh Raskar, Andreas Velten
Life of this patent
Estimating the term…
Abstract
In exemplary implementations of this invention, a set of two scanning mirrors scans the one dimensional field of view of a streak camera across a scene. The mirrors are continuously moving while the camera takes streak images. Alternately, the mirrors may only between image captures. An illumination source or other captured event is synchronized with the camera so that for every streak image the scene looks different. The scanning assures that different parts of the scene are captured.
Claims18
Apparatus comprising, in combination:
- (a) a pulsed illumination source;
- (b) a streak camera, which streak camera has a one-dimensional field of view;
- and
- (c) one or more scanning mirrors;
- wherein the apparatus is configured to capture streak images of a repetitive event, such that
- (i) for each repetition of the repetitive event, the one or more scanning mirrors scan the one-dimensional field of view of the streak camera across a scene, while the streak camera captures streak images of the scene that are combined to form a two-dimensional movie of the scene;
- and
- (ii) the two-dimensional movies of the respective repetitions are combined.
5 more elements
A method comprising, in combination:
- (a) using a pulsed illumination source to illuminate a scene with pulses of light;
- (b) using a streak camera that has a one-dimensional field of view to capture streak images of a repetitive event, such that for each repetition of the repetitive event, the one or more scanning mirrors scan the one-dimensional field of view of the streak camera across the scene, while the streak camera captures the streak images of the scene that are combined into a two-dimensional movie;
- and
- (c) combining the two-dimensional movies of the respective repetitions.
1 more element
Dependencies are inferred from the claim text.