Page 115 - Kaleidoscope Academic Conference Proceedings 2022

Extended reality – How to boost quality of experience and interoperability

The left weight of i-th hash: L =
i
the number of consecutive N min on the left

The right weight of i-th hash: R =
i
the number of consecutive N min on the right
I-th hash weight:
0 ! = N
X = � min
i
min(L , R ) + 1
i
i
E.g:
The 0th time slot has a minimum value of 0. If there are 11
consecutive minimum values of 0 on the left side, then L0=11;
if there are 0 consecutive minimum values on the right side, Figure 9 – Network camera video parameter
then R0=0. The final 0th slot weight X0=min (L0, R0) + 1=1. configuration

The first time slot, the value is not the minimum value of 0, The application result of this technology in actual scenarios
then X1=0. And so on, the corresponding weight distribution is remarkable. Taking the effect to be achieved before and
is shown in Figure 7. after the collision of four devices, the flow staggered effect
is shown in Figure 9 and Figure 10.

Figure 7 – I-frame slot hash example 2

Therefore, adjust I-frame timing of a device in the conflicting
time slot to the time slot with a maximum weight of 6. The
adjusted timing hash is shown in Figure 8.

Figure 8 – I-frame slot hash example 3
Figure 10 – 4 collision devices before the key frame is
3.3 Application results staggered

This technology adopts 5G private network access in the Before peak shift: 4 devices collide with overlapping key
park to reduce external network interference. Through frames, and each GOP cycle will overlap, resulting in
multiple network cameras to test the real-time video pull network shock.
business scene, master the collision distribution of random I-
frames with multi-device pull streams, draw the I-frame
distribution and traffic on the platform side, and compare the
IO renderings of the TCPDUMP packet capture network to
ensure the accuracy of the test data. Among them, the camera
parameters adopt the mainstream coding configuration of the
monitoring industry, as shown in Figure 9.

Figure 11 – 4 collision devices after the key frame is
staggered

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