Two image mapping algorithms of the volume rendering , forward mapping and backward mapping are researched on the basis of optical model for volume rendering . combined with the characteristic of a series of section images from laser confocal scanning microscopy , the volume buffer algorithm and maximizing algorithms are proposed in this paper . 4 同時在探討體繪制光學(xué)模型的基礎(chǔ)上,研究了體繪制的兩種圖像合成算法,即由前向后算法和由后向前算法,并結(jié)合激光共聚焦掃描顯微成像系統(tǒng)序列斷層熒光圖像的特點提出了體緩沖器算法和最大值算法。