# US 12,192,646 B2 · Apparatus and method for recording a scene for a plurality of lighting setups using a variable frame rate camera to capture micro frames during only a portion of each cinematic frame

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- Number: US 12,192,646 B2
- Document ID: US12192646B2
- Status: Granted
- Kind: B2
- Application number: 17/545,933
- Filed: 2021-12-08
- Published: 2023-06-08
- Granted: 2025-01-07
- Earliest claimed: 2021-03-03
- Applicants: Carlo Van de Roer; Stuart Rutherford
- Inventors: Carlo Van de Roer; Stuart Rutherford
- Web page: https://patentgrep.com/patent/US12192646B2

## CPC

- H04N 5/2625: {for obtaining an image which is composed of images from a temporal image sequence, e.g. for a stroboscopic effect (sequence generated by event triggered capturing H04N7/188)}
- H04N 23/74: by influencing the scene brightness using illuminating means
- H04N 5/265: Mixing
- H04N 5/91: Television signal processing therefor
- H04N 23/60: Control of cameras or camera modules
- H04N 23/682: {Vibration or motion blur correction}
- H04N 23/90: Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums
- H04N 23/56: provided with illuminating means
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

Apparatus for recording a scene using a plurality of lighting setups in rapid sequence to concurrently record a plurality of motion picture clips of the scene, one motion picture clip for each lighting setup, the plurality of clips together exhibiting negligible motion offset. The apparatus includes multiple light sources, a controller to define the plurality of lighting setups using the multiple light sources and to actuate the lighting setups in sequence, a variable frame rate camera to capture a sequence of micro frames showing the scene illuminated by each one of the plurality of lighting setups in sequence during each micro frame, and optionally a processing module to process the sequence of micro frames to generate a motion picture clip of the scene for each of the lighting setups. The duration of the micro frame sequence is short enough to minimize the need for an algorithm for removing motion artifacts.

## Claims

### Claim 1

An apparatus for recording a scene using a plurality of lighting setups so as to concurrently record a respective plurality of motion picture clips of the scene, one motion picture clip for each lighting setup, the apparatus comprising:
a plurality of light sources, each light source configured to illuminate at least part of a scene;
a controller configured to:
enable a user to define a plurality of lighting setups using the plurality of light sources, and
actuate the plurality of lighting setups in accordance with timing signals so as to provide a sequence of lighting setups,
the controller configured to actuate the plurality of lighting setups in sequence in accordance with the timing signals, such that a first lighting setup of the plurality of lighting setups is actuated by a timing signal upon a beginning of a macro frame, and a last lighting setup of the plurality of lighting setups is actuated by a timing signal such that the last lighting setup will go dark before an end of the macro frame; and
a camera configured to capture a sequence of macro frames, each macro frame being of a duration so as to include a sequence of micro frames, the sequence of micro frames being of a duration of no more than substantially 21 milliseconds, each micro frame initiated by a timing signal, and at least one micro frame being capable of capturing the scene illuminated by one of the plurality of lighting setups,
the camera being a variable frame rate camera configured to capture micro frames during only a portion of each macro frame, the portion corresponding to the duration of the sequence of micro frames.

### Claim 2 (depends on 1)

The apparatus of claim 1, wherein the variable frame rate camera is configured to capture only the sequence of micro frames in each macro frame.

### Claim 3 (depends on 1)

The apparatus of claim 1, wherein the variable frame rate camera is configured to capture at least one long micro frame after capturing the sequence of micro frames, the long micro frame being of an extended duration configured to capture light from a continuous light source.

### Claim 4 (depends on 1)

The apparatus of claim 1, wherein the timing signals are derived from the camera.

### Claim 5 (depends on 1)

The apparatus of claim 1, wherein the timing signals are derived from an external controller.

### Claim 6 (depends on 1)

The apparatus of claim 1, wherein the controller is configured to:
enable the user to include at least one camera parameter that can change for each micro frame; and
sequentially actuate the at least one camera parameter for each of the micro frames in accordance with timing signals.

### Claim 7 (depends on 6)

The apparatus of claim 6, wherein the at least one camera parameter can include at least one of:
sensitivity (ISO); aperture; ND (neutral density filter); and shutter angle.

### Claim 8 (depends on 1)

The apparatus of claim 1, wherein each lighting setup of the plurality of lighting setups is different from other lighting setups in the plurality of lighting setups.