To Align Multimodal Lumbar Spine Images via Bending Energy Constrained Normalized Mutual Information

Figure 1

Perceived visual difference between CT and MR images of lumbar spine from three perspective views. The difference of imaging characteristics, fields of view, and unavoidable motion make the registration challenging. Red arrows show different imaging contrast, green arrows direct to the undesirable artifact of bias field in MR images, and blue arrows indicate different field of views. Note that images are cropped and scaled for display purpose.

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