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Femto Bolt

Femto Bolt is a compact, high-performance device with multi-mode Depth and RGB cameras and USB-C connection for power and data. The depth camera uses Microsoft’s industry proven ToF technology and has identical operating modes and performance as the Microsoft Azure Kinect and Orbbec Femto Mega. Its versatility and price makes it attractive for AI-developers for 3D vision applications.

Head over to the Quick-Start Development Library for a swift transition from Azure Kinect DK to Femto Bolt. Follow the tutorials, Azure Kinect Sensor SDK APIs, and Azure Kinect Body Tracking demos to streamline the adoption of Femto Bolt.

Depth camera with 1 Mega Pixel ToF sensor and 120° FOV
Up to 15fps at 1024x1024 or 30fps at 640x576 depth resolution
4K RGB with HDR
6DoF IMU
USB Type-C 3.2 for power and data
Sophisticated and accurate synchronization trigger control for multi-sensor network
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Applications
SDK
Documentation

Femto Bolt

Specifications

Camera Specifications
Depth TechnologyTime of Flight
Wavelength850nm
Depth Range*0.25-5.46m (depending on depth mode)
Depth Resolution/FPSUp to 1024X1024@15fps (WFOV), 640X576@30fps (NFOV)
Depth FOVH 120° V 120° (WFOV), H 75° V 65° (NFOV)
RGB Resolution/FPSUp to 3840X2160@30fps
RGB FOVH 80° x V 51°
ProcessingHost computer
IMUSupported

* 2D and 3D files avaible for download at Github.

Physical Parameters
Data ConnectionUSB 3.2 Type-C, Gen 1
Power InputUSB Type-C/DC 12/2A
TriggerSupported
Power Consumption4.35W Average
Operating Environment10℃ - 25℃; Indoor/Semi-Outdoor; 8-90%RH (non-condensing)
SDK SupportOrbbec SDK
Data OutputPoint Cloud, Depth Map, IR & RGB
Dimensions (W*H*D)*115mm x 40mm x 65mm
Weight335g
InstallationBottom: ¼-20UNC Side: 4 x M2.5

Applications

Robotics
Femto Bolt advanced object detection and tracking algorithms in FemtoBolt provide more efficient and safer for workers. Depth sensor information in FemtoBolt to get more precise dimensions for mechanical arms.
Health
Femto Bolt use computer vision to track and monitor body’s movements and overall form. Embeded well-trained human body skeleton algorithm with AI-driven insights. Provided an improvement solution for elderly care, rehabilitation and fitness for next-generation healthcare industry.
Media
Femto Bolt 1 MP depth and 4K color information reconstruct the volumetric video for use in AR/XR; Depth and visual tracking capabilities from FemtoBolt reshape the interactive experience for next media broadcasting
Dimension
Femto Bolt can provide accurate and precise measurements of package dimensions, improving logistics and shipping accuracy.

High resolution RGB-D in compact form factor

Up to 120° field of view covers large area.

Color to depth registration.

Single USB-C connection for power and data.

High precision synchronization trigger control

FAQ: for developers using Azure Kinect Developer Kit

Femto Bolt achieves a more compact form factor for easy mounting. The depth camera modes and performance are identical to the Azure Kinect Developer Kit. The color camera has also been enhanced with HDR support. A sophisticated trigger sync mechanism has been implemented for multi-sensor and multi-camera networks. The microphone array has been eliminated.

Femto Bolt and Mega offer identical depth camera operating modes and performance as the Azure Kinect Developer Kit. By utilizing the Azure Kinect Sensor SDK Wrapper from Orbbec SDK, applications that were originally designed for the Azure Kinect Sensor SDK can effortlessly switch the support to Orbbec cameras. To facilitate testing, users can access Orbbec Viewer and k4aviewer (part of Azure Kinect Sensor SDK Wrapper from Orbbec SDK) on Orbbec website as a simple click-and-run tool for camera testing.

The Femto Bolt and Femto Mega products feature an 8-pin sync system for a multi-sensor network with the flexibility of designating a camera or an external sensor as the primary. Azure Kinect Developer Kit users can use the VSYNC_IN and VSYNC_OUT pins to connect to the audio cable used for sync trigger.

Orbbec’s multi-device sync trigger hub is an ingenuous design using RJ45 sockets for readily available CAT-5 (or better) Ethernet cables to allow accurate triggering over longer distance and with option of switching trigger levels between 1.8V, 3.3V or 5V.

Femto Bolt and Mega offer identical depth camera operating modes and performance as the Azure Kinect Developer Kit. By utilizing the Azure Kinect Sensor SDK Wrapper from Orbbec SDK, applications such as the Microsoft Body Tracking SDK that was originally designed for the Azure Kinect Sensor SDK, can be run on Orbbec Femto Bolt and Femto Mega devices.

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Case Studies​

Depthkit doubles color resolution while maintaining depth accuracy using Orbbec’s Femto Bolt for High Quality Volumetric Video
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Azure Kinect Developer Kit (AKDK) and
Orbbec Femto Bolt and Femto Mega Comparison

Camera compatibility with Azure Kinect Developer Kit:

  • These devices, built with Microsoft’s indirect Time of Flight (iToF) technology, have identical depth camera modes and performance as the Azure Kinect Developer Kit.

  • Orbbec SDK includes the Azure Kinect Sensor SDK Wrapper that enables SW applications developed for the Azure Kinect Developer Kit to work with Orbbec cameras.

Common to all Orbbec cameras:

  • 1 mega-pixel depth camera, based on Microsoft’s iToF technology, with a wide 120° field of view (FOV) and high accuracy in a broad range from 0.25m to 5.5m.

  • High performance 4K resolution RGB camera with 90° FOV.

  • 6DOF IMU module provides orientation.

  • The multi-device sync hub, sold separately as an accessory, enables easy connectivity and setup for multi-camera and multi-sensor networks with longer cables and switchable voltage levels.

  • The SDK enables easy setup and registration, and a rich set of APIs allows integration with various applications.

Differences between the Orbbec cameras

Femto Bolt

Compact RGB-D camera with HDR capability for RGB and advanced sync trigger support. Like the Azure Kinect Developer Kit, it operates connected to a host compute unit using the USB-C connection for power and data. Sampling currently, it will be available for volume orders in October 2023.

Femto Mega

Announced in January 2023 and currently in production, it’s still the industry’s highest resolution smart camera. This device uses a built-in NVIDIA® Jetson™ Nano to run the advanced depth vision algorithms to convert raw data to precise depth images and thus, eliminates the need for an external PC or compute device. It offers a choice ofPower over Ethernet (PoE) and USB-C connections for both data and power. The developer mode SDK allows execution of AI models in the device.

Depth processing
Azure Kinect Developer Kit
Femto Bolt
Femto Mega
Location of raw to depth
processing
External, Host PC
External, Host PC
Built-in NVIDIA® Jetson™ Nano

The depth cameras in Orbbec products using Microsoft’s iToF technology have identical operating modes and performance.

Depth camera operating modes
Azure Kinect Developer Kit
Femto Bolt / Femto Mega
NFOV unbinned
640x576 @ 5/15/25/30fps
640x576 @ 5/15/25/30fps
NFOV 2x2 binned (SW)
320x288 @ 5/15/25/30fps
320x288 @ 5/15/25/30fps
WFOV 2x2 binned
512x512 @ 5/15/25/30fps
512x512 @ 5/15/25/30fps
WFOV unbinned
1024x1024 @ 5/15fps
1024x1024 @ 5/15fps
Passive IR
1024x1024 @ 5/15/25/30fps
1024x1024 @ 5/15/25/30fps
Operating Depth Range
Azure Kinect Developer Kit
Femto Bolt / Femto Mega
NFOV unbinned
0.5 - 3.86 m
0.5 - 3.86 m
NFOV 2x2 binned (SW)
0.5 - 5.46 m
0.5 - 5.46 m
WFOV 2x2 binned
0.25 - 2.88 m
0.25 - 2.88 m
WFOV unbinned
0.25 - 2.21 m
0.25 - 2.21 m
Depth & IR FoV
Azure Kinect Developer Kit
Femto Bolt / Femto Mega
NFOV unbinned
75°x65°
75°x65°
WFOV binned & unbinned
120°x120°
120°x120°
Color camera characteristics
Azure Kinect Developer Kit
Femto Bolt / Femto Mega
Pixel pitch​
1.25 um​
1.45 um​
Sensor Size​
5.120x3.132 mm​
5.568x3.840mm​
F number​
2.2​
2.7​
Aspect Ratio​
4:3
16:9
Color camera operating modes
Azure Kinect Developer Kit
Femto Bolt / Femto Mega
3840x2160
5/15/30fps MJPEG
5/15/25fps MJPEG/YUY2/H.264/H.265
2560x1440
5/15/30fps MJPEG
5/15/25fps MJPEG/YUY2/H.264/H.265
1920x1080
5/15/30fps MJPEG
5/15/25/30fps MJPEG/YUY2/H.264/H.265
1280x720
5/15/30fps MJPEG/YUY2/NV12
5/15/25/30fps MJPEG/YUY2/H.264/H.265
1280x960
N/A
5/15/25/30fps MJPEG/YUY2/H.264/H.265
4096x3072
5/15fps MJPEG
N/A
2048x1536
5/15/30fps MJPEG
N/A
Color camera aspect ratio and FOV
Azure Kinect Developer Kit
Femto Bolt / Femto Mega
3840x2160
16:9, 90°x59°
16:9, 80°x51°
2560x1440
16:9, 90°x59°
16:9, 80°x51°
1920x1080
16:9, 90°x59°
16:9, 80°x51°
1280x720
16:9, 90°x59°
16:9, 80°x51°
1280x960
N/A
4:3, 65°x51°
4096x3072
4:3, 90°x74.3°
N/A
2048x1536
4:3, 90°x74.3°
N/A
Depth frame sync
Azure Kinect Developer Kit
Femto Bolt / Femto Mega
Fsync connector
2x 3.5mm audio jack
1x 8-pin flat pin, adaptor to RJ45
Fsync in
SYNC_IN
Pin #3
Fsync out
SYNC_OUT
Pin #6
Properties
Azure Kinect Developer Kit
Femto Bolt
Femto Mega
I/O Connectivity

USB 3.2 Gen 1 Type-C connector

Power through USB-C or external PSU

3.5mm audio jack for frame sync

USB 3.2 Gen 1 Type-C connector

Power through USB-C or external PSU

8 Pin-Connector for device trigger/sync

USB 3.2 Gen 1 Type-C connector

Power over Ethernet (PoE)

8 Pin-Connector for device trigger/sync

Micro USB for firmware upgrade and device reset
Compatible OS
Windows 10 or later (not S mode) and Ubuntu 18.04
Windows 10 or later (not S mode) and Ubuntu 18.04 or later
Windows 10 or later (not S mode) and Ubuntu 18.04 or later
Operating Environment
10°C - 25°C, 8-90% (non-condensing) RH, Indoor/Semi-Outdoor
10°C - 25°C, 8-90% (non-condensing) RH
10°C - 25°C, 8-90% (non-condensing) RH
Power
5.9 W max
4.35W avg

DC power + Type-C data: 11 W (16W max)

Type-C power + Type-C data: 10W (14W max)

POE power + Gigabit Ethernet data: 13W (17W max)
Dimensions W x H X D
440g
335g
560g

Side -by-Side Color Frame Comparison

Azure Kinect Developer Kit
Femto Bolt / Femto Mega

Color / Depth FOV

Azure Kinect Developer Kit
Femto Bolt / Femto Mega

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