Invention Grant
US08411938B2 Multi-scale multi-camera adaptive fusion with contrast normalization
有权
具有对比度归一化的多尺度多摄像机自适应融合
- Patent Title: Multi-scale multi-camera adaptive fusion with contrast normalization
- Patent Title (中): 具有对比度归一化的多尺度多摄像机自适应融合
-
Application No.: US12275781Application Date: 2008-11-21
-
Publication No.: US08411938B2Publication Date: 2013-04-02
- Inventor: Chao Zhang , Peter Jeffrey Burt , Gooitzen Sieman van der Wal
- Applicant: Chao Zhang , Peter Jeffrey Burt , Gooitzen Sieman van der Wal
- Applicant Address: US CA Menlo Park
- Assignee: SRI International
- Current Assignee: SRI International
- Current Assignee Address: US CA Menlo Park
- Agent Moser Taboada
- Main IPC: G06K9/00
- IPC: G06K9/00

Abstract:
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.
Public/Granted literature
- US20090169102A1 MULTI-SCALE MULTI-CAMERA ADAPTIVE FUSION WITH CONTRAST NORMALIZATION Public/Granted day:2009-07-02
Information query