急急！！！！！！！！！帮忙翻译一下

• Basic techniques 基础技术
– Pixel-based motion estimation 以像素为基础的运动判断技术: most accurate representation 最为精确的表示方式 but also most costly to estimate 但同时也是最为昂贵的判断方法
– Block-based motion estimation 以块为基础的运动判断技术
∗ Good trade-off between accuracy and speed 较好地平衡精度与速度之间（的取舍）
∗ EBMA and its fast but suboptimal variant is widely used in video coding for motion-compensated temporal prediction. 在临时预测补偿运动的视频编码中广泛应用了EBMA及其变量，该变量的使用虽快速但不理想。
∗ Advance techniques 高级技术
– Deformable block matching algorithm (DBMA) 匹配可变块的运算法则
– Global motion estimation 球面运动判断技术
– Multiresolution method 多重解析（或分辨）方法
– Region based motion estimation 以域为基础的运动判断技术
– Go through and verify the gradient descent algorithm presented for 检查及校验梯度的运算法则
– Go through the derivation of the objective function definition for mesh-based motion estimation carefully, and verify the gradi-ent function given in Eq. 6.6.9 仔细检查为“以曲面为基础的运动判断”的目标源功能定义，并