히스토그램 기반 영상 처리를 위한 압축영역에서의 고속 히스토그램 추출 기법 = Fast Histogram Extraction Scheme for Histogram-based Image Processing

다국어 초록 (Multilingual Abstract)

Due to development of Internet network environments and data compression techniques, the size and amount of multimedia data has greatly increased. They are compressed before transmission or storage. Dealing with these compressed data such as video retrieval or indexing requires the decoding procedure most of the time. In video retrieval and indexing a color histogram is one of the most frequently used tools. We propose a novel scheme for extracting color histograms from images transformed into the compressed domain using 8×8 DCT(Discrete Cosine Transform). In this scheme an averaged version of original image is obtained by filtering DCT coefficients with a filter we designed.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. DCT 영역에서의 영상 추출
• 3. 실험 결과
• 4. 결론
• 참고문헌