2 research outputs found
LookOut! Interactive Camera Gimbal Controller for Filming Long Takes
The job of a camera operator is more challenging, and potentially dangerous,
when filming long moving camera shots. Broadly, the operator must keep the
actors in-frame while safely navigating around obstacles, and while fulfilling
an artistic vision. We propose a unified hardware and software system that
distributes some of the camera operator's burden, freeing them up to focus on
safety and aesthetics during a take. Our real-time system provides a solo
operator with end-to-end control, so they can balance on-set responsiveness to
action vs planned storyboards and framing, while looking where they're going.
By default, we film without a field monitor.
Our LookOut system is built around a lightweight commodity camera gimbal
mechanism, with heavy modifications to the controller, which would normally
just provide active stabilization. Our control algorithm reacts to speech
commands, video, and a pre-made script. Specifically, our automatic monitoring
of the live video feed saves the operator from distractions. In pre-production,
an artist uses our GUI to design a sequence of high-level camera "behaviors."
Those can be specific, based on a storyboard, or looser objectives, such as
"frame both actors." Then during filming, a machine-readable script, exported
from the GUI, ties together with the sensor readings to drive the gimbal. To
validate our algorithm, we compared tracking strategies, interfaces, and
hardware protocols, and collected impressions from a) film-makers who used all
aspects of our system, and b) film-makers who watched footage filmed using
LookOut.Comment: V2: - Fixed typos. - Cleaner supplemental. - New plot in control
section with same data from a supplemental vide
Bildverarbeitungsunterstützte Laserknochenablation am humanen Felsenbein
Für die Grenzflächenerhaltung am Innenohr als mikrochirurgische Herausforderung und wichtiger Schritt zur bestmöglichen Versorgung von Schwerhörigen mit Cochleaimplantaten wird in dieser Arbeit die bildbasierte Regelung während eines laserbasierten Knochenabtrages eingesetzt. Dabei wird der Aufbau des Systems, Bildverarbeitungsalgorithmen für die Grenzflächenerkennung, Planung, Simulation und Modellierung des mikrochirurgischen Knochenabtrages sowie die experimentelle Verifikation beschrieben