OPTICAL DIVISION

Optical Division

Multi-faceted optical module and multidirectional view acquisition structure

The Optical Division is a multidirectional optical structure that separately acquires and integrates front, side, rear, top, and bottom views of ordinary objects.

Technology Overview

First Optical Group

Uses wide-angle, ultra-wide-angle, telephoto, macro, or depth sensors to acquire front, upper, lower, left, and right view information.

Second Optical Group

A multi-faceted prism or multiple mirrors divide and guide rear upper, lower, left, and right rays.

Fusion

Rear-View Reconstruction

The acquired images are integrated into a complete view through matching, boundary correction, 3D reconstruction, and reprojection.

Operation Simulation

This flow shows rear rays being acquired and integrated into a complete view while switching between prism and mirror methods.

Rear Ray Acquisition and Full View Generation

Subject
Rear Area

Integrated Result

Top

Rear

Left

Front

Bottom

Right

Combines front and side information with divided rear images and outputs the result as a cubemap or panorama.

1. Simultaneous AcquisitionDrives multiple lenses and the rear optical unit simultaneously.

2. Divided GuidanceGuides rear top, bottom, left, and right rays using a prism or mirrors.

3. Matching CorrectionReduces discontinuity through weight-based matching and boundary correction.

4. Full ViewGenerates a rear view through 3D reconstruction and reprojection.

Kettle Example

Optical Structure

Prism Type

Multi-Faceted Prism Method

A multi-faceted prism is placed at the geometric center of four lenses to separately acquire the rear upper, lower, left, and right areas. Because it does not block the front optical axis, spatial efficiency is high.

Mirror Type

Multiple-Mirror Method

Upper, lower, left, and right mirrors with different angles are arranged to guide rear rays. There is no chromatic aberration, and reflection angles can be independently designed for each area.

Front-Axis Protection

The second optical group is spaced so that it is not positioned on the front optical axis.

Four-Segment Rear View

The rear upper, lower, left, and right views are separately acquired and integrated.

Video Support

Time synchronization is secured through a global-shutter simultaneous exposure structure.

Software Expansion

Performance can be improved through AP, NPU, GPU, or app updates.

Image Processing Flow

01 AcquisitionAcquire front, side, and divided rear images

02 CorrectionCalibrate reflective-surface position and angle

03 MatchingFeature-point extraction and 3D coordinate conversion

04 WeightingCombine in the order of rear, side, front, and interpolation

05 BoundaryBoundary correction with optical-flow warping and blending

06 OutputOutput cubemap, panorama, and rear-view images

Weighting StructureThe directly acquired rear area is assigned the highest reliability, and hierarchical matching is performed in the order of side, front, and interpolation areas.

AI ExpansionNeural networks such as U-Net and NeRF can be applied as auxiliary tools for rear boundary correction, hole interpolation, and real-time reconstruction.

Sensor SharingRear information can be imaged on a separate image sensor or on peripheral or unused pixel areas of an existing image sensor.

Applicable Fields

Optical Devices

Applied as an auxiliary optical module that secures a full view including front and rear views.

Robot Vision

Supports robots in recognizing objects behind and to the side as well as in front.

Autonomous Driving and Drones

Reduces blind spots of vehicles, drones, and moving bodies and supports multidirectional environmental recognition.

Security Surveillance

Used as a surveillance structure that checks a wide range and rear area simultaneously from a single device.

Medical Imaging

A high-precision mirror-based optical structure can be applied to equipment requiring rear or side observation.

Industrial Inspection

Expanded into inspection devices for areas difficult to view directly, such as the back side, inside, or narrow spaces of products.