Title :
Novel algorithms for object extraction using multiple camera inputs
Author :
Katto, Jiro ; Ohta, Mutsumi
Author_Institution :
Inf. Technol. Res. Labs., NEC Corp., Kawasaki, Japan
Abstract :
This paper presents novel algorithms exploiting multiple camera inputs and segmentation techniques, which can be applied to image fusion, disparity detection and object extraction. Differently focused images, stereo pairs and both of them are used for fusion, disparity detection and object extraction, respectively. Firstly, image fusion is done by segmentation of each image and determination of focused regions per segment. An efficient decision criterion is developed taking the method of auto-focus into consideration. Secondly, disparity detection is executed by recursively applying segmentation and disparity detection per segment. A new clustering criterion is proposed in order to achieve good segmentation and high compression ratio of disparity maps simultaneously. Finally, object extraction is carried out by utilizing both the fusion result and the disparity map. Experiments are carried out, and they show the effectiveness of the proposed algorithms
Keywords :
cameras; data compression; feature extraction; image segmentation; sensor fusion; stereo image processing; autofocus method; clustering criterion; decision criterion; disparity detection; disparity maps; experiments; focused images; focused regions; high compression ratio; image fusion; multiple camera inputs; object extraction; object extraction algorithms; segmentation techniques; stereo pairs; Cameras; Clustering algorithms; Data mining; Focusing; Image coding; Image fusion; Image segmentation; Information technology; Object detection; Video compression;
Conference_Titel :
Image Processing, 1996. Proceedings., International Conference on
Conference_Location :
Lausanne
Print_ISBN :
0-7803-3259-8
DOI :
10.1109/ICIP.1996.561041