## 4 Experimental Results
### Comparison of Proposed JD-TV with Conventional Video Compression Schemes  
As discussed earlier, CS is a type of dimensionality reduction such that the signal at no time exists in the sensor in its full dimensionality. CS is based on a simple-encoder complex-decoder archetype, which is in contrast to the conventional video codecs. In order to use CS as a compression mechanism, quantization and entropy coding must be coupled with CS to generate bit from the CS measurements. In this section, the proposed JD-TV is coupled scalar quantization- adaptive differential pulse code modulation (SQ-ADPCM) referred as SQ-ADPCM-JD to compare it with state-of-the-art video codecs i.e., DISCOVER [27], H.264 (intra, (I-P-P)) [28] and H.263 (intra, (I-P-P)) [29]. The results shown in Figure 7 are the average values of the frames obtained for each complete video sequence at group of picture (GoP) = 3 and block size = 16 for all implementations. \begin{table}
\begin{tabular}{c l c c c c c c} \hline \hline  & **Subrate** & **0.05** & **0.10** & **0.15** & **0.20** & **0.25** & **0.30** \\ \hline \multirow{4}{*}{**Hall Monitor**} & **JD-TV** & **6.88** & **6.75** & **6.68** & **6.51** & **6.47** & **6.33** \\ \cline{2-8}  & **MC-BCS-SPL** & 2.64 & 3.88 & 4.96 & 5.77 & 5.98 & 6.21 \\ \cline{2-8}  & **kt-Focus** & 1.50 & 1.96 & 2.45 & 3.21 & 3.97 & 4.05 \\ \cline{2-8}  & **MS-Residual** & 0.85 & 1.06 & 1.55 & 2.17 & 2.88 & 3.35 \\ \hline \multirow{4}{*}{**Mother Daughter**} & **JD-TV** & **5.96** & **5.83** & **5.69** & **5.57** & **5.41** & **5.27** \\ \cline{2-8}  & **MC-BCS-SPL** & 2.17 & 3.04 & 3.77 & 4.30 & 4.85 & 5.14 \\ \cline{2-8}  & **kt-Focus** & 1.08 & 1.87 & 2.65 & 3.34 & 3.99 & 4.75 \\ \cline{2-8}  & **MS-Residual** & 0.38 & 0.77 & 1.27 & 1.83 & 2.59 & 3.05 \\ \hline \multirow{4}{*}{**Coast Guard**} & **JD-TV** & **2.76** & **2.65** & **2.55** & **2.42** & **2.31** & **2.22** \\ \cline{2-8}  & **MC-BCS-SPL** & 0.95 & 1.35 & 1.49 & 1.74 & 1.98 & 2.15 \\ \cline{2-8}  & **kt-Focus** & 0.45 & 1.01 & 1.21 & 1.40 & 1.60 & 1.89 \\ \cline{2-8}  & **MS-Residual** & 0.25 & 0.54 & 0.75 & 0.95 & 1.20 & 1.49 \\ \hline \multirow{4}{*}{**Foreman**} & **JD-TV** & **5.56** & **4.96** & **4.26** & **3.69** & **2.14** & **2.08** \\ \cline{2-8}  & **MC-BCS-SPL** & 0.90 & 2.01 & 2.81 & 3.44 & 3.57 & 3.74 \\ \cline{2-8}  & **kt-Focus** & 0.45 & 0.67 & 0.81 & 1.07 & 1.23 & 1.59 \\ \cline{2-8}  & **MS-Residual** & 0.15 & 0.24 & 0.55 & 0.77 & 0.95 & 1.19 \\ \hline \multirow{4}{*}{**Mobile Calendar**} & **JD-TV** & **3.84** & **3.7** & **3.58** & **3.43** & **3.3** & **3.17** \\ \cline{2-8}  & **MC-BCS-SPL** & 1.07 & 1.93 & 2.26 & 3.06 & 3.92 & 4.66 \\ \cline{2-8}  & **kt-Focus** & 0.77 & 1.13 & 2 & 2.63 & 3.23 & 3.97 \\ \cline{2-8}  & **MS-Residual** & 0.37 & 0.66 & 1.06 & 1.63 & 2.13 & 2.89 \\ \hline \multirow{4}{*}{**Stefan**} & **JD-TV** & **4.28** & **4.15** & **4.12** & **4.07** & **3.98** & **3.84** \\ \cline{2-8}  & **MC-BCS-SPL** & 0.35 & 0.55 & 0.93 & 1.46 & 2.18 & 2.91 \\ \cline{2-8}  & **kt-Focus** & 0.23 & 0.41 & 0.67 & 1.1 & 1.53 & 2.06 \\ \cline{2-8}  & **MS-Residual** & 0.16 & 0.21 & 1.06 & 0.55 & 0.98 & 1.15 \\ \hline \end{tabular} Note: The bold values represent the highest PSNR (dB) gain achieved at specific subrate for video sequence.  
\end{table} 
Table 7: Average PSNR gain (dB) analysis of the proposed JD with conventional CS schemes for various video sequences. It can be noted from the results that the CS codec, coupled with SQ-ADPCM, performs better than the standard video codec at various bitrates. For example, when compared with H.263 (Intra) and H.264 (Intra), the CS codec outperforms them for all video sequences at various bitrates. For the case of moderate content type video (Foreman, Coastguard), the CS codec performs noteworthy better than H.263 (I-P-P) at various bitrates, while it should also be noted that the performance of the proposed SQ-ADPCM incorporated with the JD scheme performs better than DISCOVER and H.264 (I-P-P) at lower bitrates.