Image Recognition Correction for Lens Distortion
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Solution Overview
Problem
Existing information processing devices face a decrease in recognition rate due to nonlinear distortion in image data caused by the luminous flux distribution of the optical system in imaging devices.
Innovation Solution
An information processing device is designed with a reading unit that sets a part of a pixel region and controls the reading of pixel signals, and a correction unit that corrects the read unit based on a lens distortion parameter, applying inverse transform for distortion correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If image data is captured through the optical system, then imaging functionality is achieved, but nonlinear distortion occurs causing decrease in recognition rate
Solution Approach 1:
The patent applies preliminary distortion correction to the pixel signal before it is used for recognition processing. The correction unit pre-processes the pixel signal by correcting lens distortion based on distortion correction data, ensuring that the recognition processing receives already-corrected data. This preliminary action prevents the recognition rate from decreasing due to nonlinear distortion in the captured image data.
2Measurement precision
If distortion correction is applied to the captured image, then recognition accuracy is improved, but additional processing time and complexity are introduced
Solution Approach 1:
The distortion correction data is generated and stored in advance before actual image capture and recognition processing. This pre-computed correction data is then directly applied during recognition processing without requiring complex real-time distortion calculations. By performing the complex distortion correction computation beforehand, the patent reduces processing complexity during actual recognition operations while maintaining improved recognition accuracy.
Data Source
AI summary
The present technology relates to an information processing device, an information processing system, and an information processing method which are capable of preventing a decrease in recognition rate of recognition processing even when nonlinear distortion dependent on a luminous flux distribution of an optical system occurs in a captured image. The information processing device includes a reading unit configured to set, as a reading pixel, a part of a pixel region in which a plurality of pixels is arranged in a two-dimensional array, and control reading of a pixel signal from a pixel included in the pixel region, and a correction unit configured to correct the read unit on the basis of a lens distortion parameter and cause the reading unit to read the pixel signal.