Display Apparatus with Line-of-Sight Gain Staging
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Solution Overview
Problem
Existing display technologies fail to effectively provide a sense of perspective in video display based on a user's line of sight, as they do not adequately incorporate three-dimensional information or dynamic enhancement processing.
Innovation Solution
A display apparatus comprising a monitor, camera, sight line detection unit, enhancement processing unit, and display video output control unit that analyzes user video information to detect the line of sight and perform enhancement processing by setting higher gain amounts in stages around the attention point on the video display surface, using concentric circles with incremental radii less than the distance between adjacent pixels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If enhancement processing is performed uniformly across the entire video display surface, then sharpness is improved across all regions, but processing complexity increases and the natural sense of perspective is lost
Solution Approach 1:
The patent applies different enhancement processing intensities to different regions of the video display surface based on the user's line of sight. The attention point region receives higher enhancement gain while peripheral regions receive lower gain, creating local quality variations that match human visual perception and reduce unnecessary processing complexity in non-critical areas.
Solution Approach 2:
The video display surface is segmented into multiple regions based on distance from the attention point (e.g., first region, second region, third region). Each segment receives customized enhancement processing with different gain amounts, allowing the system to manage processing complexity by dividing the overall enhancement task into manageable regional segments.
2Measurement precision
If enhancement gain is increased in the attention point region, then sharpness at the focal area is improved, but processing time and computational load increase
Solution Approach 1:
The patent dynamically changes the enhancement gain parameter based on the user's line of sight and the specific region being processed. By adjusting the gain parameter according to regional importance (higher at attention point, lower in peripheral regions), the system achieves high sharpness at the focal area while reducing overall computational load and processing time compared to uniform high-gain processing.
3Productivity
If the predetermined length for concentric circles is set larger, then processing speed increases, but the precision of enhancement positioning decreases
Solution Approach 1:
The patent optimizes the predetermined length parameter of concentric circles to balance processing speed and positioning precision. By setting the predetermined length to be equal to or less than the distance between adjacent pixels, the system achieves precise enhancement positioning at the pixel level while maintaining efficient processing speed through the use of regular geometric patterns rather than irregular region definitions.
Data Source
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AI summary
A display apparatus includes a sight line detection unit (120) that detects a line of sight of a user by analyzing user video information, an enhancement processing unit (160) that detects an intersection point of the line of sight of the user detected by the sight line detection unit (120) and a video display surface of a monitor (19) as an attention point, which is a point on which the user focuses attention, and performs enhancement processing for the monitor (19) by setting a higher gain amount in stages from a position of a longer distance from the attention point toward a position of a smaller distance, and a display video output control unit (170) that outputs video via the monitor based on the gain amount set by the enhancement processing unit (160) and display video information whose input is received by a display video information input unit (150).