公开(公告)号：US5157385A

公开(公告)日：1992-10-20

申请号：US601869

申请日：1990-10-23

申请人： Hayato Nakao ,  Takeshi Shibamoto ,  Masahiro Araoka

发明人： Hayato Nakao ,  Takeshi Shibamoto ,  Masahiro Araoka

IPC分类号： G06T15/40 ,  G09G5/391 ,  G09G5/393

CPC分类号： G09G5/391 ,  G06T15/503 ,  G09G5/393

摘要： A jagged-edge killer circuit for a three-dimensional display, comprises a frame buffer for storing data of each pixel on the display screen by a pixel unit; a Z-buffer for storing distance data in a depth direction of a picture by a sub-pixel unit into which the pixel as a storage unit of the frame buffer is subdivided in a predetermined number; a picture data buffer for storing picture data by the sub-pixel unit; an element for comparing the distance data stored in the Z-buffer with new distance data in the depth direction about each new sub-pixel into which new pixel is subdivided in the predetermined number when picture data of said new pixel are written in the picture data buffer; a first element for renewing storage contents of the picture data buffer about only sub-pixel having nearer distance in the depth direction within the sub-pixels subdivided from the new pixel into the predetermined number on the basis of a comparison result of the comparing element; a second element for renewing storage contents of the Z-buffer by the new distance data of the sub-pixels having the predetermined number corresponding to the new pixel; and an element for generating picture data of the pixel unit in the frame buffer by performing an arithmetical mean of the picture data of the sub-pixel unit having the predetermined number in the picture data buffer.

摘要翻译： 用于三维显示器的锯齿状边缘杀手电路包括：帧缓冲器，用于通过像素单元在显示屏幕上存储每个像素的数据; Z缓冲器，用于通过子像素单元存储在图像的深度方向上的距离数据，作为帧缓冲器的存储单元的像素被细分成预定数量; 用于通过子像素单元存储图像数据的图像数据缓冲器; 用于将存储在Z缓冲器中的距离数据与新的像素的深度方向上的新距离数据相对应的元素，当新图像数据的图像数据被写入图像数据时，新的像素被划分成预定数量的元素 缓冲; 第一元件，用于基于比较元素的比较结果，将图像数据缓冲器的存储内容的更新仅关于在从新像素分割为预定数量的子像素内的深度方向上具有更近距离的子像素; 用于通过对应于新像素的具有预定数量的子像素的新距离数据来更新Z缓冲器的存储内容的第二元件; 以及用于通过在图像数据缓冲器中执行具有预定数目的子像素单元的图像数据的算术平均值来生成帧缓冲器中的像素单元的图像数据的元件。