Paper
19 November 2012 Evaluation of image deblurring methods via a classification metric
Daniele Perrone, David Humphreys, Robert A. Lamb, Paolo Favaro
Author Affiliations +
Abstract
The performance of single image deblurring algorithms is typically evaluated via a certain discrepancy measure between the reconstructed image and the ideal sharp image. The choice of metric, however, has been a source of debate and has also led to alternative metrics based on human visual perception. While fixed metrics may fail to capture some small but visible artifacts, perception-based metrics may favor reconstructions with artifacts that are visually pleasant. To overcome these limitations, we propose to assess the quality of reconstructed images via a task-driven metric. In this paper we consider object classification as the task and therefore use the rate of classification as the metric to measure deblurring performance. In our evaluation we use data with different types of blur in two cases: Optical Character Recognition (OCR), where the goal is to recognise characters in a black and white image, and object classification with no restrictions on pose, illumination and orientation. Finally, we show how off-the-shelf classification algorithms benefit from working with deblurred images.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Daniele Perrone, David Humphreys, Robert A. Lamb, and Paolo Favaro "Evaluation of image deblurring methods via a classification metric", Proc. SPIE 8542, Electro-Optical Remote Sensing, Photonic Technologies, and Applications VI, 854215 (19 November 2012); https://doi.org/10.1117/12.979199
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KEYWORDS
Image quality

Optical character recognition

Detection and tracking algorithms

Image restoration

Visualization

Machine vision

Computer vision technology

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