3D Display Memory Reduction via Crosstalk Compensation Data Compression
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Solution Overview
Problem
Current 3D stereoscopic image displays require large memory capacity for crosstalk compensation, especially in high-resolution applications, which is inefficient and increases memory requirements.
Innovation Solution
A memory reduction device that compresses data using a compression unit to align and derive outliers from input data, reducing the memory capacity needed for 3D crosstalk compensation by generating compression data groups with fewer bits, thereby storing only the necessary information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing 3D crosstalk compensation technique is applied to polarization glass type stereoscopic image display, then crosstalk compensation is achieved, but memory capacity increases significantly (requiring about 11.25 KByte for FHD resolution)
Solution Approach 1:
The patent divides the image data into multiple blocks and processes only the boundary blocks that are likely to cause crosstalk, rather than processing all pixels. This segmentation approach reduces the amount of data that needs to be stored in memory while still achieving effective crosstalk compensation at the critical regions.
Solution Approach 2:
The patent applies crosstalk compensation selectively to boundary blocks between left and right eye images, rather than uniformly to all image data. This local quality approach focuses computational and storage resources on the specific regions where crosstalk occurs, reducing overall memory requirements while maintaining compensation effectiveness.
2Reliability
If existing 3D crosstalk compensation technique is applied to shutter-glass type stereoscopic image display, then crosstalk compensation is achieved, but memory capacity requirement increases even further
Solution Approach 1:
The patent segments the image data and identifies only the boundary blocks requiring crosstalk compensation. By storing and processing only these segmented boundary regions rather than complete frame data, the memory capacity requirement is significantly reduced for shutter-glass type displays.
Solution Approach 2:
The patent extracts and processes only the essential boundary block data that causes crosstalk, separating this critical information from the rest of the image data. This extraction approach allows the system to store minimal necessary information in memory while achieving effective crosstalk compensation.
3Measurement precision
If complete frame data is stored for crosstalk compensation, then accurate compensation is achieved, but memory usage increases
Solution Approach 1:
The patent extracts only the boundary blocks from complete frame data, taking out the specific portions that cause crosstalk. This extraction maintains compensation accuracy for the critical regions while dramatically reducing memory usage by excluding unnecessary pixel data from storage.
Solution Approach 2:
The patent applies high-quality compensation processing locally to boundary blocks rather than uniformly across the entire frame. This local quality approach ensures accurate crosstalk compensation where needed while using minimal memory resources.
Data Source
AI summary
A memory reduction device of a stereoscopic image display includes a compression unit configured to receive first to fourth input data belonging to Gn and comprised of K1 bit, respectively, align the first to fourth input data in order of a data size to generate first to fourth alignment data, generate first to fourth compression data groups including first and second compression data having K2 bits smaller than K1 bits and third compression data having K3 bits smaller than K2 bits based on the first to fourth alignment data, derive an outlier from the first to fourth input data by using a deviation between the first to fourth alignment data, select any one of the first to fourth compression data groups, as the compressed Gn−1 according to the presence or absence of the outlier and an outlier derivation position.