公开(公告)号：KR1020120110609A

公开(公告)日：2012-10-10

申请号：KR1020110028572

申请日：2011-03-30

Applicant: 성균관대학교산학협력단

Inventor： 전병우 ,  박종빈 ,  호앙반시엠

IPC: H04N7/24

CPC classification number: H04N19/395 ,  H04N19/184

Abstract: PURPOSE: A hierarchical image encoding and decoding method and a device using the same are provided to allocate bits according to importance of an image, thereby superiorly maintain the entire picture quality. CONSTITUTION: A key frame has a smaller value than an existing QP(Quantization Parameter). A larger number of bits are allocated to a key frame with high importance. Therefore, coding efficiency increases. A larger QM(Quantization Matrix) value is allocated to a reference Wyner-Ziv frame. Therefore, a larger number of parity bits for correcting errors in sub information can be transmitted to an encoding unit. [Reference numerals] (AA) Decoding sequence and dependence; (BB) Image display sequence

Abstract translation: 目的：提供分层图像编码和解码方法以及使用其的装置，以根据图像的重要性分配比特，从而优良地保持整个图像质量。 构成：关键帧的值比现有的QP（量化参数）小。 较大数量的比特被分配给具有高度重要性的关键帧。 因此，编码效率提高。 将较大的QM（量化矩阵）值分配给参考Wyner-Ziv帧。 因此，可以将用于校正子信息中的错误的更多数量的奇偶校验位发送到编码单元。 （AA）解码顺序和依赖性; （BB）图像显示顺序