Definition and Overview
What is Moil Meeting?
Moil Meeting is a cutting-edge video conferencing solution powered by the MoilApp fisheye image processing engine (via the Moildev SDK). By utilizing a single fisheye camera, it delivers immersive panoramic and ultra-wide (360°) views, transforming standard video feeds into dynamic, encompassing meeting environments.
Unlike traditional multi-camera systems that are complex and expensive, Moil Meeting achieves full room coverage and intelligent participant tracking with a single device. This offers a streamlined, flexible, and cost-effective alternative for modern communication needs.
Plain-language summary: One wide-angle camera captures the whole room, and the software turns it into clear, focused views so everyone can follow the meeting easily.
Key Features
Moil Meeting provides a versatile suite of operational modes tailored to diverse meeting scenarios:
| Mode | Functionality |
|---|---|
| Original Mode | Displays the raw, uncorrected fisheye view for complete field-of-view monitoring. |
| Discussion Mode | Interactive layout focusing on multiple participants simultaneously. |
| Global Mode | Unwraps the fisheye image into a 360° panoramic strip for total room awareness. |
| Patrol Mode | Automates viewing by panning across the panoramic scene continuously. |
| Presentation Mode | Highlights specific regions of interest for focused content delivery. |
| AI Tracking | Intelligent algorithms that automatically detect and track active speakers. |
What is Fisheye Lens Technology?
The Fisheye Lens, technically referred to as a Fisheye Image Sensor (FIS), is an ultra-wide-angle lens characterized by a short focal length. It intentionally produces significant optical distortion to capture an extremely wide, often hemispherical, field of view (FOV).
Key Characteristic
A standard fisheye lens boasts a FOV exceeding 180 degrees, allowing it to capture nearly everything in front of the camera, albeit with barrel distortion that requires software correction.
Technical Foundation
Based on research by Professor Chuang-Jan Chang, the Moil Meeting processing engine employs multi-collimator metrology and cartography principles to characterize the lens's projection. This technique maps the fisheye image onto a hemispherical coordinate system.
Any point on the 2D image plane corresponds directly to specific spatial angles relative to the camera's optical axis: - The image point reflects the Zenithal distance (α). - The sight ray reflects the Azimuthal distance (β).
This mathematical model normalizes the distorted image onto a virtual sphere, allowing for accurate re-projection into rectilinear (flat) views.
Coordinate System
The system uses a spherical coordinate system defined by the optical axis (Z-axis).
Zenithal Angle (α) : The angle measured from the vertical optical axis (Z) towards the X- and Y-axes. It represents the deviation from the center of the lens.
Azimuthal Angle (β) : The angle of rotation around the optical axis (Z). It is measured starting from the positive Y-axis (0°) and rotating clockwise.
The Power of Software Correction
The sophisticated normalization and re-projection workflow described above is the core engine of Moil Meeting. It allows the software to take a distorted circular image and transform it into readable, natural-looking panoramic or zoomed views in real-time.