Adaptive Multi-Resolution Myocardial Motion Analysis of B-Mode Echocardiography Images using Combined Local/Global Optical Flow

Optimized Noninvasive Monitoring of Thermal Changes on Digital B-Mode Renal Sonography During Revascularization Therapy

“…Based on this fact, many motion estimation methods make use of moments (Zernike or spline) to achieve a high degree of invariance and robustness to shear and noise. [26][27][28] On the other hand, moment implementation is not the whole story. In each frame, pixels have different motion vectors in each region; ie, each region of an image translates, rotates, or shears into different sizes.…”

“…Multiresolution moment implementation for ultrasound images has been discussed in detail previously. [26][27][28][29][30]…”

Myocardial motion analysis using optical flow and wavelet decomposition

“…These methods are block matching, gradient based method, locally constant method and locally affine model. Block matching is used firstly to estimate myocardial motion by Meunier [4]. Locally constant method was introduced by [5] as a method to minimizes the sub-dimensionality cases in the motion estimation computation.…”

Assessment of Age‐Related Changes in Left Ventricular Twist by 3‐Dimensional Speckle‐Tracking Echocardiography

“…It is an inexpensive and available technique compared to other cardiac imaging modalities such as tagged magnetic resonance imaging (MRI). However, 2‐dimensional (2D) speckle‐tracking echocardiography can only provide 2D motion vectors and suffers from out‐of‐plane motion error 10 , 11 . In addition, selection of optimal imaging planes for 2D speckle‐tracking echocardiography is difficult because of limited acoustic windows and the oblique orientation of the heart.…”

“…tracking echocardiography can only provide 2D motion vectors and suffers from out-of-plane motion error. 10,11 In addition, selection of optimal imaging planes for 2D speckle-tracking echocardiography is difficult because of limited acoustic windows and the oblique orientation of the heart. Failure to acquire the standard section can lead to inaccuracy in the measurements.…”