Fixed Bound Calibration Data Encoding for Sensor Memory Optimization
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Solution Overview
Problem
As sensor resolution in electronic devices increases, the size of calibration data such as cross talk data expands, leading to higher costs for one-time programmable (OTP) memory and inefficiencies in data handling.
Innovation Solution
The method involves determining calibration data from a calibration setup, generating and encoding a fixed bound calibration data, and processing raw images using this encoded data and compensation techniques to generate output images, thereby compressing data to a fixed size while maintaining output quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sensor resolution is increased, then image quality is improved, but calibration data size increases leading to higher memory costs
Solution Approach 1:
The patent extracts only the essential calibration information by determining a reduced set of calibration parameters from the full calibration data. This involves identifying and retaining only the critical calibration values needed for image processing while discarding redundant information, thereby reducing the storage requirement from the full calibration dataset to a compact representation that maintains processing effectiveness.
Solution Approach 2:
The patent transforms the calibration data from its original full-resolution representation to a compressed parameter representation. This involves changing the data from a detailed calibration lookup table to a reduced set of calibration parameters that can be applied through mathematical operations, effectively changing the data format to reduce storage requirements while maintaining functionality.
2Quantity of substance
If calibration data size is reduced, then memory costs are decreased, but data handling efficiency may be compromised
Solution Approach 1:
The patent performs preliminary compression of the calibration data during the calibration setup phase. By pre-determining and storing only the essential calibration parameters in a compressed format, the system avoids the need for large data storage and processing during actual image capture operations, thereby improving real-time data handling efficiency.
Solution Approach 2:
The patent creates a compressed copy of the calibration data that retains the essential information needed for image processing. This compressed calibration parameter set serves as an efficient substitute for the full calibration data, enabling faster data handling and reduced memory requirements while maintaining the necessary processing accuracy.
Data Source
AI summary
A method for handling a fixed bound calibration data in an electronic device includes: determining, by the electronic device, a calibration data from a calibration setup; and generating and encoding, by the electronic device, a fixed bound calibration data based on the determined calibration data.