Projection Apparatus Latency Mode Image Processing Segmentation
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Solution Overview
Problem
Projection apparatuses face a challenge in transitioning to low-latency mode without significantly decreasing the viewability of the projection image, as thinning out image processing to reduce latency can compromise image quality.
Innovation Solution
A projection apparatus with a communication unit, image processor, and control unit that maintains essential image processing like deformation, rotation, and inversion corrections while stopping secondary processing to switch between low-latency and high-quality modes, allowing for reduced processing load without compromising image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If image processing is thinned out to reduce processing load when transitioning to low-latency mode, then latency is reduced, but viewability of the projection image significantly decreases
Solution Approach 1:
The patent segments image processing into two categories: essential processing (deformation, rotation, inversion correction) that maintains viewability, and non-essential processing (noise cancellation, quality enhancement) that can be reduced. This segmentation allows selective execution of processing functions based on operational mode, resolving the contradiction between reducing latency and maintaining viewability.
Solution Approach 2:
The patent dynamically adjusts the level of image processing based on the operational mode. In low-latency mode, only essential processing is executed while non-essential processing is reduced or skipped. In normal mode, full processing is applied. This dynamic adaptation allows the system to optimize between latency and viewability depending on operational requirements.
2Productivity
If all image processing is stopped to achieve low-latency mode, then processing load is reduced, but image quality significantly deteriorates
Solution Approach 1:
The patent applies partial action by executing only the necessary portion of image processing (essential corrections) in low-latency mode, rather than stopping all processing or executing full processing. This selective partial execution maintains sufficient image quality while achieving the latency reduction goal.
Solution Approach 2:
The patent applies different processing quality levels to different aspects of image processing. Essential geometric corrections are maintained at full quality, while non-essential quality enhancement processing is reduced. This local differentiation of processing quality allows the system to maintain critical viewability aspects while reducing overall processing load.
Data Source
AI summary
A projection apparatus executes a first processing and a second processing on image signal received from an external device, projects an image based on the image signal processed by an image processor, and switches an operation mode of the projection apparatus to a first mode, which is a low-latency mode for suppressing a delay in displaying an image, and a second mode, which is not the low-latency mode. The image processor maintains the first processing and stops the second processing in response that the operation mode of the projection apparatus is switched to the first mode from a state in which the operation mode is the second mode and the first processing and the second processing are executed.