Say goodbye to blur: A detailed explanation of the Aestiquo P1's autofocus algorithm
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For anyone who knows the frustration of a projector going out of focus every time it's moved, the autofocus function of the Aestiquo P1 will be a revelation. Just turn on the power, and the focus is set—this is made possible by a wealth of zero-latency technology adapted from aerospace engineering.
Evolution of Autofocus Technology
Early projectors relied on contrast detection and manual adjustment of the lens mechanism. Readjustment was necessary every time the projector's location was changed, which was a major source of stress, especially when using it for camping or business trips.
Recently, Time-of-Flight (ToF) sensor technology has emerged, measuring distance and depth in real time with light pulses and responding instantly to environmental changes. Even if the projector moves, the focus does not.
Further evolved zero-latency autofocus technology allows the ToF-based system to calculate focus 30 times per second, completing corrections before blur is even noticed. This technology is applied from the aerospace and robotics fields.
Aestiquo P1 Autofocus Algorithm
Aestiquo P1 adopts the latest zero-latency autofocus technology. The ToF sensor measures the distance to the projection surface and automatically adjusts the lens based on that data.
Distance Measurement by ToF Sensor
The ToF sensor installed in the P1 emits light pulses and measures the time it takes for the reflected light to return, accurately determining the distance to the projection surface.
This measurement is performed in milliseconds, continuously providing accurate distance data even if the projector moves or the projection surface changes.
Automatic Focus Adjustment Algorithm
After receiving ToF data, the P1's algorithm adjusts focus according to the following flow:
- ToF sensor measures the distance to the projection surface
- Calculates lens movement based on the measured value
- Fine-tunes the lens to establish focus
- Displays the image clearly in real time
This cycle is repeated 30 times per second, so even if the projector is moved or the projection surface is changed, corrections are completed before any blur is noticed.
Automatic Obstacle Avoidance Function
The P1 also has an obstacle detection function. Even if furniture or objects enter in front of the lens, it automatically re-adjusts the focus.
- ToF sensor detects obstacles in front
- Recalculates focus value considering obstacles
- Redisplays the image clearly
Thanks to this function, the freedom of placement is greatly expanded, allowing you to set up the projector without worrying about the furniture arrangement in your living room.
Three Strengths of Aestiquo P1 Autofocus
Zero-Latency Focus Adjustment
The ToF sensor measures distance 30 times per second, completing corrections before blur is noticed. Even if the projector moves, the screen is always clear.
Placement Freedom Beyond Obstacles
Automatically adjusts even if there is furniture in front of the lens, greatly reducing placement restrictions.
Completed Just By Powering On
Automatically adjusts focus upon startup. Manual adjustment is also possible with the remote if needed.
Implementation Example of Aestiquo P1 Autofocus Algorithm
Aestiquo P1's autofocus operates with close cooperation between software and hardware.
Software Implementation
All processes, from reading ToF data to controlling the lens, are executed in real time.
- Acquires distance data from the ToF sensor
- Calculates lens movement
- Fine-tunes the lens to establish focus
- Displays the image clearly in real time
Hardware Configuration
| Hardware | Function |
|---|---|
| ToF sensor | Real-time measurement of distance to projection surface |
| Motor | Actuation mechanism for fine-tuning the lens in milliseconds |
| Controller | Processing unit that analyzes ToF data and controls the motor |
Next Evolution Through Integration with AI Technology
With improved ToF sensor accuracy and the combination of AI image recognition, the next generation of autofocus has the potential to extend to "projection surface material identification." For example, functions that automatically select the optimal focus value by distinguishing between screens and walls are expected.
Experience P1's Autofocus for Yourself
Blurry images are the result of accumulated small stresses. The Aestiquo P1 is designed with the philosophy of taking on all that stress. Just turn it on, and then concentrate on the movie. That is the experience the P1 aims to deliver.
