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专利名称：Image encoder and image decoder发明人：Hiroyuki Katata,Hiroshi Kusao申请号：US08/608508申请日：19960228公开号：US05815601A公开日：19980929
摘要：An image encoder for encoding the image data so as to make the image qualityof a selected area better than that of the other areas without increasing the amount ofdata is disclosed. The encoder comprises an area selecting section for selecting a specificarea in an image, an area position and shape encoding section for encoding the positionand shape of the selected area, a coding parameter adjusting section for adjustingvarious parameters used to control the image quality and the amount of data in encodinga dynamic image and performing control so that the image quality of the area is encodedmore preferably than the image quality of the other areas, a parameter encoding sectionfor encoding the above parameters, a dynamic image encoding section for encoding inputdynamic- image data by using the above various parameters, and an encoded dataintegrating section for combining encoded data by the area position and shape encodingsection, the parameter encoding section and the dynamic image encoding section andtransmit or store the data. An image decoder applied to the image encoder is alsodisclosed.
申请人：SHARP KABUSHIKI KAISHA
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