Image analysis – Image compression or coding – Lossless compression
Reexamination Certificate
2005-01-11
2005-01-11
Couso, Yon J. (Department: 2625)
Image analysis
Image compression or coding
Lossless compression
C382S166000, C382S250000, C382S284000, C348S155000
Reexamination Certificate
active
06842540
ABSTRACT:
A surveillance image is acquired from a surveillance camera. Supplement information (such as date and time, and surveillance camera number) relating to the surveillance image is acquired. By imaging the supplement information, supplement information image data is generated. A quantized discrete cosine transform coefficient block obtained by conducting discrete cosine transform and then quantization on surveillance image data of the surveillance image is added to a quantized discrete cosine transform coefficient block obtained by conducting discrete cosine transform and then quantization on the supplement information image data. A resultant sum is subjected to Huffman encoding. The result is recorded.
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“CCTV Surveillance System Basis Course”, M. Takahashi et al, Industrial Development Organization Corporation, pp. 88-91.
Hayashi Akio
Inoue Koichi
Kohiyama Tomohisa
Morino Harumi
Okayama Masataka
Couso Yon J.
Hitachi , Ltd.
Hung Yubin
Mattingly Stanger & Malur, P.C.
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