CA2638488A1 - Silhouette follow spot - Google Patents

Silhouette follow spot Download PDF

Info

Publication number
CA2638488A1
CA2638488A1 CA 2638488 CA2638488A CA2638488A1 CA 2638488 A1 CA2638488 A1 CA 2638488A1 CA 2638488 CA2638488 CA 2638488 CA 2638488 A CA2638488 A CA 2638488A CA 2638488 A1 CA2638488 A1 CA 2638488A1
Authority
CA
Canada
Prior art keywords
silhouette
accordance
projector
camera
video
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA 2638488
Other languages
French (fr)
Inventor
Catalin Alexandru Duru
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CA 2638488 priority Critical patent/CA2638488A1/en
Publication of CA2638488A1 publication Critical patent/CA2638488A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63J—DEVICES FOR THEATRES, CIRCUSES, OR THE LIKE; CONJURING APPLIANCES OR THE LIKE
    • A63J5/00—Auxiliaries for producing special effects on stages, or in circuses or arenas

Abstract

Silhouette Follow Spot is a computerized system designed to detect artists or objects on a scene and project light onto them. The system performs real-time silhouette detection, which is sent to an efficient digital projector; Accurate calibration of the detection system and the projector along with an optimized processing pipeline results in highlighting the artist(s) while emitting light only where necessary, keeping the overall ambience dark.

Claims (7)

1. A stage lighting device detecting in real-time the silhouette of the ARTIST, and emitting light corresponding to the detected silhouette, using a video projector.
2. The image processing device in accordance to claim 1 is a computer.
3. The silhouette detection system, in accordance to claim 2 is a near infrared (NIR) camera.
4. The separation of infrared video flux and visible flux is achieved using an IR Cut Filter or Cold Mirror, placing the camera view point and the projector emitting point symmetrically according to filter plane.
5. A system in accordance to claim 4, where camera/projector calibration uses advanced keystone techniques described in "Advanced Projector and Camera Keystone deformation correction using 3d reconstruction of the Region of Interest".
6. The silhouette detection system, in accordance to claim 4 is based on "contre-jour" lighting.
7. A system in accordance to claim 6, where the video processing pipeline includes Gaussian Blur.
CA 2638488 2008-07-28 2008-07-28 Silhouette follow spot Abandoned CA2638488A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2638488 CA2638488A1 (en) 2008-07-28 2008-07-28 Silhouette follow spot

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2638488 CA2638488A1 (en) 2008-07-28 2008-07-28 Silhouette follow spot

Publications (1)

Publication Number Publication Date
CA2638488A1 true CA2638488A1 (en) 2010-01-28

Family

ID=41611020

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2638488 Abandoned CA2638488A1 (en) 2008-07-28 2008-07-28 Silhouette follow spot

Country Status (1)

Country Link
CA (1) CA2638488A1 (en)

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