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Training-Free, Generic Object Detection Using Locally Adaptive Regression Kernels
September 2010 (vol. 32 no. 9)
pp. 1688-1704
Hae Jong Seo, University of California, Santa Cruz, Santa Cruz
Peyman Milanfar, University of California, Santa Cruz, Santa Cruz
We present a generic detection/localization algorithm capable of searching for a visual object of interest without training. The proposed method operates using a single example of an object of interest to find similar matches, does not require prior knowledge (learning) about objects being sought, and does not require any preprocessing step or segmentation of a target image. Our method is based on the computation of local regression kernels as descriptors from a query, which measure the likeness of a pixel to its surroundings. Salient features are extracted from said descriptors and compared against analogous features from the target image. This comparison is done using a matrix generalization of the cosine similarity measure. We illustrate optimality properties of the algorithm using a naive-Bayes framework. The algorithm yields a scalar resemblance map, indicating the likelihood of similarity between the query and all patches in the target image. By employing nonparametric significance tests and nonmaxima suppression, we detect the presence and location of objects similar to the given query. The approach is extended to account for large variations in scale and rotation. High performance is demonstrated on several challenging data sets, indicating successful detection of objects in diverse contexts and under different imaging conditions.

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Index Terms:
Object detection, image representation, correlation and regression analysis.
Citation:
Hae Jong Seo, Peyman Milanfar, "Training-Free, Generic Object Detection Using Locally Adaptive Regression Kernels," IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 32, no. 9, pp. 1688-1704, Sept. 2010, doi:10.1109/TPAMI.2009.153
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