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Comparison with general products used for distance and position measurement
3D-ToF camera vs RGB camera
1 Compared to RGB cameras, it is possible to detect human shapes and movements while considering privacy.
⇒Suitable for cameras for bathrooms and toilets
2 RGB cameras detect people based on their skin color, but 3D ToF cameras detect people based on their distance, making it easier to cut out the shape of a person.
⇒ Compared to RGB cameras, the image processing load in the latter stage is lighter.
3 Resistant to ambient light due to the use of an infrared light source
4 Lower cost than RGB cameras due to the small number of pixels
3D-ToF camera vs Radar
| distance resolution | Detection distance | transparency | gesture | cost | size | |
| 24GHz radar | 75cm | 30m | ◎ | △ | ○ | ○ |
| 60GHz radar | 2.14cm | 20m | 〇 | 〇 | △ | ◎ |
| 3D-ToF | 1mm | 5m | △ | ◎ | △ | ◎ |
Features and Benefits of Infineon 3D-ToF Image Sensors
<Features>
• Single-chip 3D-TOF image sensor
• Direct measurement of depth and amplitude of each pixel
• High degree of design freedom with single lens design
• Standard camera interface (MIPI)
With the patented per-pixel background light suppression (SBI) feature,
Extended dynamic range
• Easy one-time calibration
<Benefits>
• CPU load can be reduced because the depth map is calculated inside the ToF sensor device
• Compact, low power consumption
• Accurate range image calculation in bright direct sunlight and darkness
Operating principle
<Operating principle>
1. Project a single modulated infrared light source onto an object, user or scene of interest.
2. Reflected light is captured by the ToF image sensor.
3. ToF image sensors measure depth, amplitude and phase difference pixel by pixel.
Four. The result is a grayscale image of the entire scene in addition to a reliable distance or depth image.
We also handle 3D-ToF camera modules
We also offer ToF modules that combine Infineon 3D-ToF image sensors, infrared light sources and lenses. We can introduce partner companies.
・In addition to IRS2381C (HQVGA; 224 x 172 pixel (38 k)), there is a combination module lineup of VGA; 640 x 480 pixel (307 k) 3D-ToF sensor.
・Can be used for both mobile devices and IoT devices. Both have a lot of mass production results.
・We can provide SDK (Royale) that supports a wide variety of camera APIs.
・High-precision VCSEL (laser) light source is used for the light source. It also complies with Laser Safety IEC60825-1 class-1.
Application example
By embedding the 3D-ToF SDK in your application and developing software, it is possible to support various uses.
3D scan
3D scanning of objects and people's faces can enhance personal authentication. The video introduces a demonstration of actual 3D scanning.
Gesture recognition UI
Since it is possible to recognize fine finger movements and gestures without contact, it is also ideal for UI such as game console and projector operation.
・Finger Gesture (Our SW partner company. Finger Gesture SDK can be provided)
- Intuitive and simple fingertip motion for quick response
- Gestures and commands can be combined and customized
- Total support (including outsourcing of UI development on behalf of customers)
<Use case example>
Non-contact touch panel operation
vital sensing
The Infineon ToF sensor can detect distances in 1mm increments, making it ideal for non-contact respiratory sensing such as breathing rate and heart rate measurement. It is also suitable for devices for health checks at home. The video introduces a demonstration of actual vital sensing.
robots, SLAM
It can also be used to create SLAM for robot vacuum cleaners, etc., and to assist in identifying target parts for robot arm movement.
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