CullNet: Calibrated and Pose Aware Confidence Scores for Object Pose Estimation

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Authors Kartik Gupta, Lars Petersson, Richard Hartley
Journal/Conference Name Proceedings - 2019 International Conference on Computer Vision Workshop, ICCVW 2019
Paper Category
Paper Abstract We present a new approach for a single view, image-based object pose estimation. Specifically, the problem of culling false positives among several pose proposal estimates is addressed in this paper. Our proposed approach targets the problem of inaccurate confidence values predicted by CNNs which is used by many current methods to choose a final object pose prediction. We present a network called CullNet, solving this task. CullNet takes pairs of pose masks rendered from a 3D model and cropped regions in the original image as input. This is then used to calibrate the confidence scores of the pose proposals. This new set of confidence scores is found to be significantly more reliable for accurate object pose estimation as shown by our results. Our experimental results on multiple challenging datasets (LINEMOD and Occlusion LINEMOD) reflects the utility of our proposed method. Our overall pose estimation pipeline outperforms state-of-the-art object pose estimation methods on these standard object pose estimation datasets. Our code is publicly available on https//github.com/kartikgupta-at-anu/CullNet.
Date of publication 2019
Code Programming Language Python
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