Imaging Signal Quantization Recovery Using High-Precision Components
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Solution Overview
Problem
Existing technologies fail to consistently generate a digital signal with high quantization precision from a digital signal with low quantization precision, leading to reduced image quality and increased quantization errors.
Innovation Solution
An information processing device and method that includes a high-precision component extraction unit to extract high-precision information from an unprocessed digital signal and a quantization precision reproduction unit to generate a reproduction signal with restored quantization precision by combining high-frequency and low-frequency components, or by using a reference signal to correct the processed signal, thereby enhancing the quantization precision of the digital signal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If signal processing is performed on a digital signal with high quantization precision, then the processed signal can be obtained, but the quantization precision is reduced due to processing limitations
Solution Approach 1:
The invention extracts high-precision component information from the original high-precision signal before processing. This preliminary extraction preserves the high-precision signal components that would otherwise be lost during processing, allowing them to be restored later to compensate for quantization precision reduction.
Solution Approach 2:
The invention changes the quantization precision parameter by extracting signal components at high precision, processing the main signal at lower precision, and then restoring the high-precision components. This parameter transformation allows the system to benefit from both low-precision processing efficiency and high-precision signal quality.
2Productivity
If quantization precision is reduced for processing, then processing efficiency is improved, but image quality deteriorates due to quantization errors
Solution Approach 1:
The invention segments the signal processing into two parts: extracting high-precision component information and processing the main signal. This segmentation allows different parts of the signal to be handled with appropriate precision levels, maintaining image quality while improving processing efficiency.
Solution Approach 2:
The invention temporarily discards the high-precision component information during processing and then recovers it by adding the extracted high-precision components back to the processed signal. This discard-recover approach enables efficient processing while preserving image quality.
3Measurement precision
If high-precision component information is extracted and stored, then quantization precision can be reproduced, but data storage requirements increase
Solution Approach 1:
The invention extracts only the essential high-precision component information from the original signal rather than storing the entire high-precision signal. This extraction approach reduces the quantity of data that needs to be stored while still enabling quantization precision reproduction.
Data Source
AI summary
The present technology relates to an information processing device, an imaging device, an information processing method, and a program capable of generating an appropriate digital signal having high quantization precision from a digital signal having low quantization precision.High-precision component information is extracted from an unprocessed signal that is a digital signal not subjected to predetermined signal processing and having first quantization precision, and a reproduction signal in which quantization precision of a processed signal obtained by performing the predetermined signal processing on the unprocessed signal is reproduced to the first quantization precision on the basis of the high-precision component information is generated. The present technology is applicable to, for example, an imaging device.