TY - JOUR PY - 2008// TI - Pedestrian detection via classification on Riemannian manifolds JO - IEEE transactions on pattern analysis and machine intelligence A1 - Tuzel, Oncel A1 - Porikli, Fatih A1 - Meer, Peter SP - 1713 EP - 1727 VL - 30 IS - 10 N2 - Detecting different categories of objects in image and video content is one of the fundamental tasks in computer vision research. The success of many applications such as visual surveillance, image retrieval, robotics, autonomous vehicles, and smart cameras are conditioned on the accu- racy of the detection process. Two main processing steps can be distinguished in a typical object detection algorithm. The first task is feature extraction, in which the most informative object descriptors regarding the detection process are obtained from the visual content. The second task is detection, in which the obtained object descriptors are utilized in a classification frame- work to detect the objects of interest. The feature extraction methods can be further categorized into two groups based on the representation. The first group of methods is the sparse represen- tations, where a set of representative local regions is obtained as the result of an interest point detection algorithm. Reliable interest points should encapsulate valuable information about the local image content and remain stable under changes, such as in viewpoint and/or illumination. There exists an extensive literature on interest point detectors, and (14),(18),(21),(25), and (27) are only a few of the most commonly used methods that satisfy consistency over a large range of operating conditions.

LA - SN - 0162-8828 UR - http://dx.doi.org/10.1109/TPAMI.2008.75 ID - ref1 ER -