计算机与现代化
計算機與現代化
계산궤여현대화
COMPUTER AND MODERNIZATION
2014年
6期
56-60
,共5页
几何图像序列%三维网格压缩%有损压缩%三维人脸表情模型%薄板样条函数
幾何圖像序列%三維網格壓縮%有損壓縮%三維人臉錶情模型%薄闆樣條函數
궤하도상서렬%삼유망격압축%유손압축%삼유인검표정모형%박판양조함수
geometry image sequence%3D meshes compression%lossy compression%3D facial expression model%TPS
为了提高对几何图像序列的压缩效率,本文提出一种基于薄板样条函数(Thin Plate Spine,TPS)的有损压缩算法。在该压缩算法中,利用TPS变换可用于三维表面形变的特点,将TPS变换作为几何图像序列中相邻帧之间从前一帧到后一帧的预测器,通过存储TPS变换矩阵系数的方式编码预测帧,将该方法应用于一个三维人脸网格的几何图像序列,获得了较好的压缩效果。
為瞭提高對幾何圖像序列的壓縮效率,本文提齣一種基于薄闆樣條函數(Thin Plate Spine,TPS)的有損壓縮算法。在該壓縮算法中,利用TPS變換可用于三維錶麵形變的特點,將TPS變換作為幾何圖像序列中相鄰幀之間從前一幀到後一幀的預測器,通過存儲TPS變換矩陣繫數的方式編碼預測幀,將該方法應用于一箇三維人臉網格的幾何圖像序列,穫得瞭較好的壓縮效果。
위료제고대궤하도상서렬적압축효솔,본문제출일충기우박판양조함수(Thin Plate Spine,TPS)적유손압축산법。재해압축산법중,이용TPS변환가용우삼유표면형변적특점,장TPS변환작위궤하도상서렬중상린정지간종전일정도후일정적예측기,통과존저TPS변환구진계수적방식편마예측정,장해방법응용우일개삼유인검망격적궤하도상서렬,획득료교호적압축효과。
In order to improve the compression efficiency on geometry image sequences , this paper improves a lossy compression method based on thin plate spine ( TPS) .In this method , this paper utilizes the feature of TPS transformation that can be used to take shape deformation on 3D surfaces.The TPS transformation is used as the predictor from one frame to the next frame of each adjacent frames , then coded the predicted frames through storing transformational matrices of TPS transformation .This paper ap-plies the method on a geometry image sequence of 3D facial meshes, and achieves good compressing performance .