Information Technology Journal1812-56381812-5646Asian Network for Scientific Information10.3923/itj.2009.1275.1280ChenQingjiang WeiZongtian 8200988The notion of orthogonal nonseparable trivariate wavelet packets, which is the generalization of orthogonal univariate wavelet packets, is introduced. An approach for constructing them is presented. Their orthogonality properties are discussed. Three orthogonality formulas concerning these wavelet packets are obtained. The orthonormal bases of space L2 (R3) is presented.]]>Daubechies, I., 19921st Edn.,pp: 1-52pp: 1-52Chen, Q. and Z. Shi,2008377586Telesca, L., V. Lapenna and V. Alexis, 200422741748Cheng, Z.X., 20071st Edn.,pp: 99-106 (In Chinese)pp: 99-106 (In Chinese)Mallat, S.,19982nd Edn.,pp: 244-285pp: 244-285Ruilin, L., 19951st Edn.,Behera, B., 200732812371246Leng, J.S., Z.X. Cheng, T.Z. Huang and C.H. Lai,20065116631676Li, X.S. and H.J. Fang,200987782Wang, X., X. Yang, J. Sun and Z. Cai,200875662Chen, Q. and A. Huo, 200941951961Chen, Q. and G. Qu,20094116761683Chen, Q. , Y. Zhao and H. Gao,20094224842493Chen, Q., H. Cao and Z. Shi,20094227652778Chen, Q.J., J.S. Feng and Z.X. Cheng,2006224153Chen, Q. and Z. Cheng,20073110241034