20 research outputs found
Region-Based Semantic Segmentation with End-to-End Training
We propose a novel method for semantic segmentation, the task of labeling
each pixel in an image with a semantic class. Our method combines the
advantages of the two main competing paradigms. Methods based on region
classification offer proper spatial support for appearance measurements, but
typically operate in two separate stages, none of which targets pixel labeling
performance at the end of the pipeline. More recent fully convolutional methods
are capable of end-to-end training for the final pixel labeling, but resort to
fixed patches as spatial support. We show how to modify modern region-based
approaches to enable end-to-end training for semantic segmentation. This is
achieved via a differentiable region-to-pixel layer and a differentiable
free-form Region-of-Interest pooling layer. Our method improves the
state-of-the-art in terms of class-average accuracy with 64.0% on SIFT Flow and
49.9% on PASCAL Context, and is particularly accurate at object boundaries.Comment: ECCV 2016 camera-read
A Study on Semantic Segmentation for Autonomous Vehicles
ABSTRACTAutonomous vehicles are already a reality, and there are still severalchallenges to overcome. One important challenge for the adoptionof these vehicles is perceiving its surroundings. This necessity ofperception can be fulfilled by digital cameras. When working withdigital image processing, the quality will be limited by real-timeconstraints. As several works indicate, this real-time constraint forautonomous vehicles is at most 100ms per frame. Also, by improvingthe processing time, the chances of accidents involving autonomousvehicles may be decreased. This paper analyses the advantages anddrawbacks of semantic segmentation and also presents a study toimplement perception for autonomous vehicles by accelerating asemantic segmentation algorithm, also used by other works on thefield. To accelerate the algorithm, spacial parallelism will be used