A Multitask Sign Language Recognition System Using Commodity Wi-Fi

Table 3

Recognition accuracy of Wi-SignFi and other methods.

Methods	Modality	Home276 (%)	Lab276 (%)	Lab + Home276 (%)	Lab150 (%)	Mean (%)	Rank
SignFi [3] (2018)	A + P	98.91	98.01	94.81	86.66	94.60	6
HOS-Re [33] (2019)	—	98.26	97.84	96.34	96.23	97.17	5
CNN [31] (2020)	A + P	99.64	99.855	99.73	93.84	98.27	3
Dual-output two-stream with ResNet50 [4] (2020)	A + P + Difference	99.13	96.79	97.08	95.88	97.22	4
LSTM [32] (2021)	A	99.50	99.80	99.40	78	94.18	7
Wi-SignFi (224 × 224 × 3)	A + P	99.75	99.80	99.69	96.41	98.91	1
Wi-SignFi (200 × 180)	A + P	99.71	99.67	99.40	96.79	98.89	2

The bold values given in Table 3 represent the best action recognition results for each of the four datasets.