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Adaptive transform coding system, adaptive transform decoding system and adaptive transform coding/decoding system
Adaptive transform coding system, adaptive transform decoding system and adaptive transform coding/decoding system
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机译:自适应变换编码系统,自适应变换解码系统和自适应变换编码/解码系统
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摘要
In an adaptive transform coding system and/or an adaptive transform decoding system, coding efficiency in the case where a small number of quantized values having large absolute value are present, is improved. The adaptive transform coding system codes the small number of quantized values having large absolute values and other quantized values are coded separately. More particularly, the adaptive transform coding system includes a selector (6) discriminating the small number of quantized value having large absolute value from other quantized value, a pulse coding means for coding the small number of quantized values having large absolute values (8) and the pulse decoding means (16) for decoding the same, a coding means (7) for coding the quantized value other than those having large absolute values and a decoding means (15) decoding the same, and a synthesis means (18) for synthesizing the small number of quantized values having large absolute value and other quantized values. IMAGE
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