Image segmentation and approximation through surface type labelling and region merging

Image compression using plane fitting with inter-block prediction

“…Zig-zag scanning was used in [20] to convert the block to 1D and then to perform linear approximations between selected knots. Surface fitting has been used in image segmentation [21], in image noise reduction [22], and for quality improvement of blockbased compression [23,24]. It has been used in [25] to encode the lowest frequency band in subband coding.…”