High-Resolution Image Encoding Using DVD Standard Segmentation
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Solution Overview
Problem
Current DVD, VCD, and SVCD technologies are limited by standard image resolutions, failing to meet the increasing demand for higher resolutions, particularly with computer screens reaching 1024x768 and digital TV manufacturers aiming for higher resolutions, while maintaining compatibility and playback quality.
Innovation Solution
A method that decomposes high-resolution images into standard-resolution primary images, calculates secondary image data by averaging pixel values, and stores them in user and video-audio formats, allowing for higher resolution playback without degrading existing disc formats, using an encoding apparatus with image decomposing, operation, and encoding units, and a playback apparatus with readout, combining, and decoding units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If standard image resolution is used in DVD/VCD/SVCD formats, then compatibility with existing playback apparatus is maintained, but image resolution cannot meet the demand for higher quality display
Solution Approach 1:
The high-resolution image is segmented into multiple standard-resolution images by dividing the image data into plural parts. Each part corresponds to a standard-resolution image that can be stored in existing DVD/VCD/SVCD formats, while collectively they represent the high-resolution original image.
Solution Approach 2:
Multiple standard-resolution images are nested within a single high-resolution image structure. The high-resolution image contains embedded standard-resolution images that can be independently decoded and played back on conventional devices, while the complete structure provides enhanced resolution when all components are combined.
2Measurement precision
If high-resolution images are stored directly, then image quality is improved, but storage capacity and data transmission limits of DVD players are exceeded
Solution Approach 1:
The high-resolution image data is segmented into multiple smaller standard-resolution image parts. This segmentation reduces the data size of each individual component to fit within DVD storage capacity limits, while the collective information content maintains the high-resolution quality when all segments are synthesized together.
Solution Approach 2:
Instead of storing the complete high-resolution image at once, the method uses partial actions by storing multiple standard-resolution images that collectively represent the high-resolution content. This approach distributes the data load across multiple smaller units that fit within storage constraints.
3Measurement precision
If multiple image formats are used to store high-resolution data, then image resolution is enhanced, but device complexity increases
Solution Approach 1:
The encoding apparatus and decoding apparatus are designed with multi-functionality to handle both standard-resolution and high-resolution image processing. The same device can operate in different modes: decoding individual standard-resolution images for compatibility or synthesizing multiple images for high-resolution output, reducing the need for specialized equipment.
Data Source
AI summary
The present invention is a method for enhancing image resolution. A high-resolution image is decomposed into plural primary image data with DVD/SVCD/VCD standard image resolution and then these plural primary image data are stored in plural user data format or secondary viewing angle data format of DVD/VCD/SVCD image data carrier. Next, the average value of pixels at the same positions of the plural primary image data is calculated and secondary image data are formed. Finally, the secondary image data are stored in a video-audio data format or a primary viewing angle data format of DVD/VCD/SVCD image data carrier. In order to play the high-resolution image data carrier, the plural primary image data is combined and restored to form a high-resolution image, hence achieving the goal of enhancing the image resolution of DVD/SVCD/VCD.