Circuits for the i-level 3D-QWT (IMAGE) Higher Education Press Caption Circuits for the i-level 3D-QWT Credit Haisheng LI , Guiqiong LI , Haiying XIA Usage Restrictions none License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.