Vibrating Mirror Control for Projector Resolution and Noise
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Solution Overview
Problem
Existing projection apparatuses using vibrating mirrors to improve resolution often introduce noise, degrading image quality and failing to enhance resolution when the output resolution is less than or equal to the physical resolution of the projection display chip.
Innovation Solution
A vibrating mirror adjustment apparatus and method that acquires image feature information, identifies the category of the projected image, extracts resolution information, and controls the vibrating mirror's on or off state based on the comparison between the projected image's resolution and the projection display chip's physical resolution, optimizing the projection display effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the vibrating mirror is activated to improve resolution, then the image resolution is enhanced, but noise is introduced degrading image quality
Solution Approach 1:
The patent implements dynamic control of the vibrating mirror by switching between on and off states based on real-time detection of image resolution requirements. The system continuously monitors whether the current projected image resolution exceeds the projection display chip's physical resolution, and only activates the vibrating mirror when super-resolution is actually needed, thereby avoiding unnecessary noise introduction while maintaining the capability to enhance resolution when beneficial.
Solution Approach 2:
The system changes the operational state parameter of the vibrating mirror (on/off) based on the detected image characteristics. By comparing the output resolution against the physical resolution threshold, the system dynamically adjusts the vibrating mirror's activation state, transitioning from a static always-on configuration to a dynamic conditional activation mode that optimizes the balance between resolution enhancement and noise suppression.
2Measurement precision
If the vibrating mirror is activated for all images, then resolution may be improved for high-resolution images, but image quality deteriorates for low-resolution images due to noise and image differences
Solution Approach 1:
The patent applies local quality control by treating different image types differently based on their resolution characteristics. Instead of applying a uniform vibrating mirror activation policy to all images, the system evaluates each image's resolution requirements individually and applies the vibrating mirror function selectively - activating it only for images where the output resolution exceeds the physical resolution, and keeping it inactive for images where it would degrade quality.
Solution Approach 2:
The system incorporates feedback mechanisms by continuously monitoring the relationship between the projected image resolution and the projection display chip's physical resolution. This feedback loop enables the system to make informed decisions about vibrating mirror activation, ensuring that the mirror is only activated when the detected resolution conditions indicate that super-resolution enhancement is appropriate and beneficial.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution improves the visual experience by ensuring the vibrating mirror is only activated when necessary, thereby enhancing image resolution without introducing noise, resulting in an optimal projection display effect.
Implementation Method 1
an individual key element or combined key elements are improved to an element capable of regularly vibrating as the vibrating mirror
Implementation Method 2
the projection display chip is configured to modulate an illumination light beam emitted by a projection illumination light source into an image light beam of a projected image
Data Source
AI summary
The present disclosure relates to a vibrating mirror adjustment apparatus, system and method, and a projector. The vibrating mirror adjustment apparatus includes: an image feature acquiring module, an image identifying module, a resolution extracting module, and a vibrating mirror control module. The vibrating mirror adjustment apparatus identifies the category of the projected image and the resolution information corresponding to the projected image based on the acquired information feature of the projected image, then identifies whether vibration of the vibrating mirror is used to improve a resolution of an image, and further automatically controls the on or off state of the vibrating mirror, such that an optimal projection display effect is achieved, and visual enjoyment of a user is greatly improved.