Original Scan Line Detection in Deinterlaced Signals
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional deinterlacing techniques often introduce inadequacies into the progressive signal, and there is a need for a method to detect and extract original scan lines from a deinterlaced signal to generate an optimized deinterlaced signal.
Innovation Solution
A technique that determines the original scan lines in a deinterlaced signal by analyzing the even and odd scan lines, using calculations and comparisons to select the closest scan lines, and then generates an interlaced signal, which can be further deinterlaced using advanced techniques like edge detection and cadence detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional deinterlacing techniques are used, then a progressive signal can be generated, but the signal includes inadequacies inherent in the deinterlacing process
Solution Approach 1:
The patent inverts the conventional deinterlacing process by taking a deinterlaced progressive signal and re-interlacing it to recover the original interlaced scan lines. This reverse approach allows identification of which scan lines (even or odd) were originally present, enabling selection of the correct original scan lines to eliminate deinterlacing artifacts while preserving the progressive signal quality.
2Manufacturing precision
If advanced deinterlacing techniques like edge detection are used, then deinterlacing quality improves, but the process complexity increases
Solution Approach 1:
The patent performs preliminary re-interlacing of the deinterlaced signal before analyzing it to determine original scan lines. This preliminary action creates a structured interlaced format that simplifies subsequent analysis, allowing the system to identify original scan lines through comparison of even and odd fields without requiring complex direct analysis of the progressive signal.
3Measurement precision
If the system analyzes and compares scan lines to determine original lines, then accuracy improves, but processing time increases
Solution Approach 1:
The patent segments the deinterlaced signal into even scan lines and odd scan lines, analyzing them separately through re-interlacing and comparison. This segmentation allows the system to independently evaluate each field and determine which contains the original scan lines, improving detection accuracy through systematic comparison while managing processing complexity through structured division of the analysis task.
Data Source
AI summary
A technique for detecting original scan lines is disclosed. The technique involves receiving a deinterlaced signal with even scan lines and odd scan lines. After the deinterlaced signal is received, a determination is made as to whether the even scan lines or the odd scan lines are the original scan lines. In certain embodiments, an interlaced signal can be generated from the original scan lines. In other embodiments, an optimized deinterlaced signal can be generated using the original scan lines.