JVET-AM0149 Non-EE2: On filtering for angular modes [T. Dong, V. Rufitskiy, A. Filippov (TCL)]

In this proposal, unification for interpolation filters used in intra prediction of blocks predicted using TIMD fusion mode and other modes is presented. In addition to this unification a set of related improvements to enhance angular mode prediction is proposed. The overall coding gain reported for all intra is Y -0.04% U -0.04% V -0.01%.

Interest was expressed by other experts to investigate this in an EE. It was asked if there would still be gain in combination with JVET-AM0140, as there is some overlap (see JVET-AM0167).

It was commented that some gain may be lost after adoptions (1.7a, 1.12).

3-4 different aspects (second bullet point is basically two items), to be studied separately.

See further notes under JVET-AM0167.