发明申请
US20090169102A1 MULTI-SCALE MULTI-CAMERA ADAPTIVE FUSION WITH CONTRAST NORMALIZATION
有权
多尺度多摄像机自适应融合与对比正态化
- 专利标题: MULTI-SCALE MULTI-CAMERA ADAPTIVE FUSION WITH CONTRAST NORMALIZATION
- 专利标题(中): 多尺度多摄像机自适应融合与对比正态化
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申请号: US12275781申请日: 2008-11-21
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公开(公告)号: US20090169102A1公开(公告)日: 2009-07-02
- 发明人: Chao Zhang , Peter Jeffrey Burt , Gooitzen Sieman van der Wal
- 申请人: Chao Zhang , Peter Jeffrey Burt , Gooitzen Sieman van der Wal
- 主分类号: G06K9/40
- IPC分类号: G06K9/40 ; G06K9/36
摘要:
A computer implemented method for fusing images taken by a plurality of cameras is disclosed, comprising the steps of: receiving a plurality of images of the same scene taken by the plurality of cameras; generating Laplacian pyramid images for each source image of the plurality of images; applying contrast normalization to the Laplacian pyramids images; performing pixel-level fusion on the Laplacian pyramid images based on a local salience measure that reduces aliasing artifacts to produce one salience-selected Laplacian pyramid image for each pyramid level; and combining the salience-selected Laplacian pyramid images into a fused image. Applying contrast normalization further comprises, for each Laplacian image at a given level: obtaining an energy image from the Laplacian image; determining a gain factor that is based on at least the energy image and a target contrast; and multiplying the Laplacian image by a gain factor to produce a normalized Laplacian image.
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