Idiap on LinkedIn Idiap youtube channel Idiap on Twitter Idiap on Facebook
Personal tools
You are here: Home Research Resources Exact Acceleration of Linear Object Detectors

Exact Acceleration of Linear Object Detectors

— filed under:

We describe a general and exact method to considerably speed up linear object detection systems operating in a sliding, multi-scale window fashion, such as the individual part detectors of part-based models.

The main bottleneck of many of those systems is the computational cost of the convolutions between the multiple rescalings of the image to process, and the linear lters. We make use of properties of the Fourier transform and of clever implementation strategies to obtain a speedup factor proportional to the lters' sizes. The gain in performance is demonstrated on the well known Pascal VOC benchmark, where we accelerate the speed of said convolutions by an order of magnitude.

You can download the archive here: ffld_v2.tar.bz2 (12'168KB)

Document Actions
Resource Information
Resource type: software
Date: Oct 08, 2012
Size: 400Ko
Access: Web
Distribution: Web
Contact: Fran├žois FLEURET
+41 277 217 739