The 'Volumetric Reconstruction' mapping may be, for example, tested according to the number of rotation images needed, in order to generate an sufficient or appealing reconstruction.
In particular, the anti-rotation image feature can obtain the alignment effect of 3D model views.
Typically, the spiral consisted of 20 complete rotations, images were acquired every 1° at 60 frames per second (fps), and the total acquisition of 7200 images took less than 2 min per specimen.
We can see that under this mode of rotation, output images have a bigger size than the rotated image.
In each 360° rotation 1600 3100 images were taken; image acquisition was 500 1000 ms with no averaging of images.
Imaging parameters such as focal length, primary and secondary rotation angles image pixel spacing and size are obtained from the accompanied DICOM image files.
A combination of mental rotation and image restructuring occurs during mental synthesis, in which discrete parts of an image are transformed and manipulated in order to produce novel patterns or allow new insights (Pearson et al., 2001).
One of the content-preserving operations (i.e., rotation of image) has not been discussed till now.
The new feature is achieved by modifying the gradient binning and spatial binning based on the histograms of oriented gradients (HOG) and can express the rotation of image patch into the cyclic shift of final descriptor.
To counteract the former, we investigated how oppositional asymmetric patterns of shape variation in a combined left right SSM can be used to account for pelvic and internal/external leg rotation during image acquisition.
Multiplanar reformation (MPR) was carried out by a senior MRI technologist with 13 years' experience to generate radial images, using the centre of the femoral neck as the axis of rotation, with images 2 mm thick generated at 15° intervals.
