Translator Disclaimer
21 April 1995 Extracting multidimensional signal features for content-based visual query
Author Affiliations +
Proceedings Volume 2501, Visual Communications and Image Processing '95; (1995)
Event: Visual Communications and Image Processing '95, 1995, Taipei, Taiwan
Future large visual information systems (such as image databases and video servers) require effective and efficient methods for indexing, accessing, and manipulating images based on visual content. This paper focuses on automatic extraction of low-level visual features such as texture, color, and shape. Continuing our prior work in compressed video manipulation, we also propose to explore the possibility of deriving visual features directly from the compressed domain, such as the DCT and wavelet transform domain. By stressing at the low-level features, we hope to achieve generic techniques applicable to general applications. By exploring the compressed-domain content extractability, we hope to reduce the computational complexity. We also propose a quad-tree based data structure to bind various signal features. Integrated feature maps are proposed to improve the overall effectiveness of the feature-based image query system. Current technical progress and system prototypes are also described. Part of the prototype work has been integrated into the Multimedia/VOD testbed in the Advanced Image Lab of Columbia University.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Shih-Fu Chang and John R. Smith "Extracting multidimensional signal features for content-based visual query", Proc. SPIE 2501, Visual Communications and Image Processing '95, (21 April 1995);


Back to Top