Search Results for author: Shigeyuki Oba

Found 8 papers, 1 papers with code

Leveraging Tacit Information Embedded in CNN Layers for Visual Tracking

no code implementations2 Oct 2020 Kourosh Meshgi, Maryam Sadat Mirzaei, Shigeyuki Oba

Different layers in CNNs provide not only different levels of abstraction for describing the objects in the input but also encode various implicit information about them.

Visual Tracking

Long and Short Memory Balancing in Visual Co-Tracking using Q-Learning

no code implementations14 Feb 2019 Kourosh Meshgi, Maryam Sadat Mirzaei, Shigeyuki Oba

Employing one or more additional classifiers to break the self-learning loop in tracing-by-detection has gained considerable attention.

Q-Learning Self-Learning

Information-Maximizing Sampling to Promote Tracking-by-Detection

no code implementations7 Jun 2018 Kourosh Meshgi, Maryam Sadat Mirzaei, Shigeyuki Oba

We introduced the idea of most informative sampling, in which the sampler attempts to select samples that trouble the classifier of a discriminative tracker.

General Classification

Efficient Diverse Ensemble for Discriminative Co-Tracking

no code implementations CVPR 2018 Kourosh Meshgi, Shigeyuki Oba, Shin Ishii

To remove this redundancy and have an effective ensemble learning, it is critical for the committee to include consistent hypotheses that differ from one-another, covering the version space with minimum overlaps.

Ensemble Learning

Active Collaborative Ensemble Tracking

no code implementations28 Apr 2017 Kourosh Meshgi, Maryam Sadat Mirzaei, Shigeyuki Oba, Shin Ishii

However, by updating all of the ensemble using a shared set of samples and their final labels, such diversity is lost or reduced to the diversity provided by the underlying features or internal classifiers' dynamics.

General Classification

Efficient Version-Space Reduction for Visual Tracking

no code implementations2 Apr 2017 Kourosh Meshgi, Shigeyuki Oba, Shin Ishii

To cope with variations of the target shape and appearance, the classifier is updated online with different samples of the target and the background.

Visual Tracking

Efficient Asymmetric Co-Tracking using Uncertainty Sampling

no code implementations31 Mar 2017 Kourosh Meshgi, Maryam Sadat Mirzaei, Shigeyuki Oba, Shin Ishii

We also introduce a budgeting mechanism which prevents the unbounded growth in the number of examples in the first detector to maintain its rapid response.

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