Pointer Light Image Capture With Background Brightness Correction
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Solution Overview
Problem
Existing image capture techniques using pointer light often result in poor background image quality due to adjustments that enhance pointer light detection, leading to degraded background regions.
Innovation Solution
An image generation device and method that adjusts camera exposure to capture images with high-quality background regions by changing the exposure of the entire imaging surface, detecting light, and correcting background brightness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the camera exposure is adjusted to enhance pointer light detection, then the light detection capability is improved, but the background image quality deteriorates
Solution Approach 1:
The patent divides the image processing into two separate stages: first capturing the light trajectory with enhanced exposure, then capturing the background with standard exposure. This segmentation allows each capture to be optimized for its specific purpose without compromising the other, resolving the contradiction between light detection quality and background image quality.
Solution Approach 2:
The patent performs preliminary action by capturing the light trajectory image first with enhanced exposure settings, then uses this information to guide subsequent background capture. The light detection is performed in advance, allowing the system to then focus on capturing high-quality background images without the exposure compromise.
2Measurement precision
If the exposure of the entire imaging surface is changed to capture light, then the light detection accuracy is improved, but the brightness of the background region deteriorates
Solution Approach 1:
The patent segments the imaging process into two distinct phases: light trajectory capture with modified exposure settings, and background capture with standard exposure settings. This allows the system to temporarily optimize for light detection without permanently affecting background brightness, as each phase uses appropriate exposure settings for its specific purpose.
Solution Approach 2:
The patent employs periodic action by alternating between different exposure modes: first capturing light trajectories with enhanced exposure, then capturing backgrounds with standard exposure. This periodic switching between modes allows the system to achieve both light detection accuracy and proper background brightness in the final composite image.
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
Enables the generation of high-quality drawing images with improved background regions by adjusting camera exposure and sensitivity to maintain image quality.
Implementation Method 1
a camera that captures light emitted from an instruction device
Data Source
AI summary
The image generation device includes a camera that captures light emitted from an instruction device, and a processor that is configured to generate a drawing image based on a detection status in which the light is detected from a captured image, which is captured by the camera, in which the processor is configured to cause the camera to change an exposure of an entire imaging surface to capture the captured image, detect the light from the captured image, which is captured in a state in which the exposure is changed, and record the drawing image, which is generated based on the detection status of the light, by correcting a brightness of a background region, which is a background of the light.