Carnegie Mellon University
Feature-Centric Evaluation for Efficient Cascaded Object Detection

Henry Schneiderman
IEEE Conference on Computer Vision and Pattern Recognition (CVPR), June, 2004.

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We describe a cascaded method for object detection. This approach uses a novel organization of the first cascade stage called "feature-centric" evaluation which re-uses feature evaluations across multiple candidate windows. We minimize the cost of this evaluation through several simplifications: (1) localized lighting normalization, (2) representation of the classifier as an additive model and (3) discrete-valued features. Such a method also incorporates a unique feature representation. The early stages in the cascade use simple fast feature evaluations and the later stages use more complex discriminative features. In particular, we propose features based on sparse coding and ordinal relationships among filter responses. This combination of cascaded feature-centric evaluation with features of increasing complexity achieves both computational efficiency and accuracy. We describe object detection experiments on ten objects including faces and automobiles. These results include 97% recognition at equal error rate on the UIUC image database for car detection.

Object Detection, Object Recognition, Cascade, Face Detection, Car Detection, Pattern Recognition, Computer Vision, Image Processing

Sponsor: ARDA and TSWG
Grant ID: MDA904-03-C-1789 and N41756-03-C-4024
Associated Center(s) / Consortia: Vision and Autonomous Systems Center
Associated Lab(s) / Group(s): Face Group
Associated Project(s): Object Recognition Using Statistical Modeling, Face Detection Databases, Face Detection

Text Reference
Henry Schneiderman, "Feature-Centric Evaluation for Efficient Cascaded Object Detection," IEEE Conference on Computer Vision and Pattern Recognition (CVPR), June, 2004.

BibTeX Reference
   author = "Henry Schneiderman",
   title = "Feature-Centric Evaluation for Efficient Cascaded Object Detection",
   booktitle = "IEEE Conference on Computer Vision and Pattern Recognition (CVPR)",
   publisher = "IEEE",
   month = "June",
   year = "2004",