Super Resolution Playback Encoding via Field-Specific Filtering
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Solution Overview
Problem
Current super resolution playback technologies face limitations in transmitting images due to bandwidth reduction techniques like interlacing, which result in loss of high frequency content, making it difficult for devices to display interlaced images without sophisticated processing and limiting the recovery of detailed information.
Innovation Solution
The proposed method involves filtering high resolution images before transmission to create a compatible lower resolution image, using different filtering techniques for each field in interlaced data to maintain low frequency content and add minimal aliasing, allowing super resolution processes to recover the original high resolution image without increasing processing power or power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If bandwidth reduction techniques like interlacing are used to reduce transmission bandwidth, then bandwidth efficiency is improved, but high frequency content is lost making super resolution recovery difficult
Solution Approach 1:
The patent applies preliminary filtering to the high resolution image before downsampling to interlaced format. This pre-filtering preserves the high frequency content that would otherwise be lost during the bandwidth reduction process, enabling subsequent super resolution recovery while maintaining bandwidth efficiency
Solution Approach 2:
The patent modifies the filtering parameters applied to different fields in the interlaced sequence. By using different filter strengths or types for odd and even fields, the system preserves high frequency information while maintaining bandwidth reduction, allowing super resolution processes to recover details that would be lost with uniform filtering
2Quantity of substance
If interlaced format is used for transmission to reduce bandwidth, then transmission bandwidth is reduced, but device compatibility and ease of display are worsened requiring sophisticated deinterlacing processing
Solution Approach 1:
The patent prepares the interlaced data with specific filtering characteristics in advance, so that when received by display devices, the data requires minimal processing. The preliminary filtering ensures that standard deinterlacing algorithms can work effectively without requiring sophisticated per-pixel processing
Solution Approach 2:
The patent creates an encoding scheme that serves multiple functions: it reduces bandwidth through interlacing while simultaneously maintaining compatibility with both traditional interlaced displays and modern progressive displays through the specific filtering approach applied to different fields
3Quantity of substance
If standard downsampling is applied to create lower resolution images for transmission, then bandwidth is reduced, but super resolution processes cannot easily recover original details
Solution Approach 1:
The patent applies different filtering qualities to different spatial locations and different fields within the interlaced sequence. By preserving high frequency content locally in specific regions and fields while allowing bandwidth reduction elsewhere, the system enables super resolution processes to recover original details that would be lost with uniform aggressive downsampling
Data Source
AI summary
A method of displaying video data includes receiving, at a timing controller, a frame of pixel data at a resolution lower than the display resolution from an application processor, generating new frames of video data at the timing controller by applying a filter with a different set of coefficients to at least one neighboring frame at the lower resolution to generate a display frame of video data at a higher resolution. A video processing device has an application processor to execute instructions causing the application process to transmit frames of image data at a resolution lower than an original resolution, and a timing controller to execute instructions causing the timing controller to reconstruct frames of image data at the original resolution from the frames of lower resolution.