公开(公告)号：US06266081B1

公开(公告)日：2001-07-24

申请号：US08801350

申请日：1997-02-19

申请人： Tadashi Ono ,  Youichi Amano ,  Hiroyuki Uenaka ,  Akira Iketani ,  Masakazu Nishino ,  Yuji Fujiwara ,  Tatsuro Juri

发明人： Tadashi Ono ,  Youichi Amano ,  Hiroyuki Uenaka ,  Akira Iketani ,  Masakazu Nishino ,  Yuji Fujiwara ,  Tatsuro Juri

IPC分类号： G06K900

CPC分类号： H04N19/112 ,  H04N5/781 ,  H04N5/783 ,  H04N5/9264

摘要： A image signal processing apparatus and method for static image display are provided. Deformation at an edge of an image can be reduced by eliminating a temporal factor and vertical resolution can be retained even after data supplementation. In the process of compressing and decompressing interlace-scanned image data, one of two fields of a frame is selected by a field selector, image data is supplemented and reproduced based on the selected field data by a supplementor, and image data is outputted as a static image without deformation. As a result, more bits can be allocated for encoding by selecting and compressing one field data only and it leads to a higher quality image display. Furthermore, display deformation can be reduced by supplementing high frequency components as zero in the decompression processing.

摘要翻译： 提供了一种用于静态图像显示的图像信号处理装置和方法。 可以通过消除时间因素来减少图像边缘的变形，即使在数据补充之后也可以保留垂直分辨率。 在对隔行扫描图像数据进行压缩和解压缩的过程中，通过场选择器选择帧的两个场中的一个，通过补码器基于所选择的场数据来补充和再现图像数据，并且将图像数据作为 静态图像无变形。 结果，可以通过仅选择和压缩一个场数据来分配更多的比特来进行编码，并且其导致更高质量的图像显示。 此外，通过在解压缩处理中补充高频分量为零，可以减少显示变形。