Signal Processing Device Resolution Enhancement
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Solution Overview
Problem
Existing signal processing devices face challenges in improving image resolution when input images have varying resolutions, especially when resolution information is absent, leading to difficulties in processing signals effectively.
Innovation Solution
A signal processing device and image display apparatus that utilize a scaler to scale input images to a first resolution and a resolution enhancement processor using a deep neural network to generate an image with a higher second resolution, including a learning inference processor and calculator to calculate differences and update weights for improved image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a scaler is used to scale input images to a fixed first resolution, then images of various resolutions can be processed uniformly, but the original resolution information is lost making it difficult to process images without resolution information
Solution Approach 1:
The system performs preliminary scaling of input images to a first resolution before resolution enhancement processing. This preliminary action prepares images of various resolutions in a uniform format while the subsequent resolution enhancement processor restores and enhances the resolution, effectively recovering the lost resolution information through learning-based inference
Solution Approach 2:
The resolution enhancement processor acts as an intermediary that receives scaled images and reconstructs high-resolution images by learning from training data. It mediates between the scaled first resolution images and the desired second resolution output, using learned patterns to recover resolution information that was lost during initial scaling
2Manufacturing precision
If resolution enhancement processing is performed on all input images regardless of their original resolution, then resolution improvement can be achieved, but processing time and computational resources increase
Solution Approach 1:
The resolution enhancement processor performs self-service by automatically determining whether resolution enhancement is needed based on comparing the scaled first resolution with the target second resolution. When the scaled image already meets the required resolution, the processor bypasses enhancement operations, allowing the system to serve itself by making intelligent processing decisions without external intervention
Data Source
AI summary
Provided are a signal processing device and an image display apparatus including the same. The signal processing device and the image display apparatus including the same include a scaler configured to scale input images of various resolutions to a first resolution and a resolution enhancement processor configured to perform learning on the input images having the first resolution and to generate a first image having a second resolution higher than the first resolution. Accordingly, resolution may be stably improved even if input images of various resolutions are input.