Title :
Colour histogram content-based image retrieval and hardware implementation
Author :
Kotoulas, L. ; Andreadis, I.
Abstract :
With the ongoing development of multimedia technology, the number of information systems containing image retrieval functions is increasing rapidly. Techniques of colour histogram content-based image retrieval are compared in terms of speed and efficiency, and a modified approach based on a composite colour image histogram processing is introduced. The proposed approach is fast and provides results comparable to those of much slower algorithms. Furthermore, a novel pipelined hardware structure has been designed and implemented on an FPGA, to increase the operation speed and make the technique suitable for real-time applications. The typical clock frequency of this device is 35 MHz and it can perform over 50 comparisons of 640×480-pixel images per second
Keywords :
FIR filters <colour histogram content-based image retrieval and hardware implement.>; content-based retrieval <colour histogram content-based image retrieval and hardware implement.>; field programmable gate arrays <colour histogram content-based image retrieval and hardware implement.>; image colour analysis <colour histogram content-based image retrieval and hardware implement.>; image retrieval <colour histogram content-based image retrieval and hardware implement.>; parallel architectures <colour histogram content-based image retrieval and hardware implement.>; 35 MHz; 480 pixel; 640 pixel; FIR filter; FPGA; Gaussian response; HSV colour space; colour histogram image retrieval; composite colour image histogram processing; content-based image retrieval; image database; multimedia technology; pipelined hardware structure; real-time applications; retrieval efficiency; retrieval speed;
Journal_Title :
Circuits, Devices and Systems, IEE Proceedings -
DOI :
10.1049/ip-cds:20030481
