M4.3WN
R E F E R E N C E

D E S I G N

A R E F E R E N C E D E S I G N M O D U L E F O R T H E
N U 4 0 0 0 A I

3 DI M A G E

V I S I O N

A N D

C O M P U T E R

P R O C E S S O ROVERVIEW
The M4.3WN is a reference design module that integrates deeplearning, 3D computer vision and image processing functions. TheM4.3WN is based on Inuitive’s NU4000AI multi-core processor SoC
which is optimized for 3D image processing, computer vision and AI.
The power efficient M4.3WN is the leading solution for implementing
3D sensing and computer vision into consumer electronic devices.
The M4.3WN is designed to function as a self-contained, self-sufficientdepth sensor (at narrow Fov), vision and AI processor module.
It functions as an independent sub-system, generating fully processed
depth information to its host.
The M4.3WN primary processing unit is Inuitive’s multi-core
NU4000AI processor. In addition, the M4.3WN includes tracking
and RGB sensors. These sensors are controlled and time stamped by
the NU4000AI. Data generated by the sensors (and processed in realtime by the NU4000AI) is used to generate a hybrid tracking based on
2D, 3D and IMU.
The following picture illustrates the M4.3WN module – M4.3WN EOM(see at the front) connected to an NU4000AI base board (connectedbehind the EOM by a flat cable). Base can alternatively be placed
anywhere else in the system:

MODULE'S STRUCTURE AND PARTITIONING
For design flexibility and enhanced performance, M4.3WN reference
design is comprised of two sub-modules:
M4.3WN EOM (Electro Optical Module) – the EOM hosts thecameras, the projector and the IMU.
M4.3WN Base – the base includes the NU4000AI IC, various
interfaces, power-management circuit and other peripherals.

KEY FEATURES
0.3-3 or 0.5-5 meters range (configurable settings)
Field of View (65⁰x40⁰ FoV)

Enables AI processing on NU4000AI

RGB camera sensor, registered tothe depth sensor

Supports Inuitive AI framework

2 monochromatic Fish Eyecameras for tracking

Supports Windows, Linux, andAndroid OSs

Utilizes Inuitive's NU4000AI
multi-core computer vision and 3D
image processor

Operates in all lighting conditions(from darkness to daylight)

On-board Interial
Measurements Unit (IMU)

API for easy Application-Layer Design

Low power, small size

On-chip Feature Tracking algorithms

Target Markets:
RobotsVR Head Mounted Displays (HMD)
Drones3D Scanners

HIGH LEVEL BLOCK DIAGRAM
The following figure illustrates a high-level block diagram of the M4.3WN module:
Fisheye Fisheye
OV7251 OV7251

IR Pattern
Projector

RGB
Stereo L Stereo R
OV2685 OV9282 OV9282

NU4000DDRMIPI or USB 3.0
Application Processor

SPIIMUKEY PARAMETERS
GENERAL PARAMETERSPARAMET ER

VA LU EUNITSCOMMENTSPower consumption

1.1W

Depth only, 30FPS, 4ms exposure, total power for
EOM + Base

Module size - X

125mm

Module size – Y

40mm

Module size – Z

27mm

Minimum operating temperature

0⁰C

Maximum operating temperature

50⁰C

Host Interface

USB-type C

Ambient conditions, preliminary results
USB 3.0 and USB 2.0 compliant

DEPTH IMAGE GENERATIONPARAMET ER

VA LU EUNITSCOMMENTS

Sensor

OV9282N/A

2 monochrome sensors on boardSensor Resolution

1280x800

PixelsActual depth map size slightly smaller

Frame rate

60fps

Sensor supports 130 fps (@720p), 180 fps(@VGA) and more.

Baseline

100mm

Minimum depth sensing range

0.3m

Maximum depth sensing range

5.0m

Depth accuracy at maximum range

1%Higher range can be achieved by Inuitive’s
support for specific tuning

TRACKING
PARAM ET ER

VA LU E

Sensor

OV7251

Resolution

640x480

UNITS

COMMENTS
2 monochrome sensors on board

Pixels

VGA.
Sensor supports QVGA as well

Frame rate

Up to 100fps@VGA Resolution

DFOV

166.5⁰C

Fisheye

IMU

BMI-160

6 Axis. Utilizes a Gyro and an Accelerometer

RGB
PARAMET ER

VA LU E

UNITS

Sensor

OV2685

N/A

Resolution

1600x1200

PixelsFrame rate

60fps

FOV

60x45

Degrees

COMMENTS

For further information please contact us at info@inuitive-tech.com