APR · IEEE CSIT 2026 · Paper 066

Compact analytic-prior repair
for traffic-sign detection

Inspect one archived research example of component-wise image repair, and explore the reported comparison across six repair methods.

Chih-Yuan Cheng · Bor-Jiunn Hwang · Ming Chuan University
Accepted and orally presented at IEEE CSIT 2026 on 15 October 2026
27,188Repair parameters · refiner and gate
84.3%Predicted-mask group-mean recovery
Faster R-CNN · 95% CI 78.8–89.0%
76.717 msRepair-only mean latency
128 development cases · RTX 5070 Ti

Explore a fixed repair case

Archived outputs · predicted-mask comparison

Case DFGSHAPE_0003465, retained from the fixed E14 qualitative atlas. Compare the digitally occluded input, analytic Telea repair, APR repair and clean reference in the four-panel figure.

Full comparison fitted to the viewer.
Fixed DFG research case with the occluded input, Telea result, APR result and clean reference. These are precomputed predicted-mask outputs.

The panels are precomputed outputs from one retained predicted-mask case. Aggregate recovery above uses the predicted-mask route and whole-source-group weighting. Local inference with a caller-provided support mask is available in the Python package.

Reported six-method comparison

Faster R-CNN, predicted masks, 701 eligible final attack-caused failures. Case-weighted recovery and masked PSNR retain the paper's population and definitions.

Loading the retained result table…

Research setting

Source-group-disjoint DFG traffic signs, a supplied sign ROI, and digital non-adaptive occlusion. Group-mean recovery uses 56 eligible Faster R-CNN source groups. The descriptive 95% interval resamples whole groups.

Latency: repair-only, batch 1, FP32, RTX 5070 Ti; 128 development cases from 57 groups. This viewer's browser interactions operate on retained outputs.

Dataset credit & reuse

DFG Traffic Sign Dataset · ViCoS Laboratory, University of Ljubljana · Domen Tabernik and Danijel Skočaj. Images provided and annotated by DFG Consulting d.o.o.

Example modifications: cropping, digital occlusion, repair and four-panel layout. Example shared under CC BY-NC-SA 4.0. Original dataset and publication ↗