Sequence Code is assigned otherwise SF values is high so Long Sequence Code is assigned. In this way, proposed PHY model control the distance adaptive data rate selection. Figure 2-11 Distance Adaptive Data rate Control – PHY Layer Dimming Method The Display to camera communication dimming control is depending on the mode of embedding data (Visible or Invisible) on display system, rate at data is repeatedly coding on video frame, and rate at which data refresh on display. The IEEE802.15.7r1 Invisible Data Embedded Display TX Schemes for OCC uses the Alpha Blending or Watermarking to embed the data on Video display frame. The function description of proposed PHY model is given in Figure 3-1. Figure 3-1 Display Transmitter Functional Block Diagram – The Smart Device Camera Capture Visual Frame from Screen is shown Figure 3-2. Figure 3-2 Smartphone Receiver Functional Block Diagram – The ROI of Screen Visual Area is extracted from the captured visual frame and then apply the Sequential Scalable 2D Code or M-FSK or M-QPSK detector based on mapping scheme applied. The data recovered by applying SS on the data decoded. The IEEE802.15.7r1 PHY for Invisible Data Embedded Display TX Schemes designed with built-in Scalable bitrate Controller by controlling the Video display refresh rate or by frames in which data to be encoded repeatedly.
Sequence Code is assigned otherwise SF values is high so Long Sequence Code is assigned. In this way, proposed PHY model control the distance adaptive data rate selection. Figure 2-11 – Distance Adaptive Data rate Control PHY Layer Dimming Method The Display to camera communication dimming control is depending on the mode of embedding data (Visible or Invisible) on display system, rate at data is repeatedly coding on video frame, and rate at which data refresh on display. The IEEE802.15.7r1 Invisible Data Embedded Display TX Schemes for OCC uses the Alpha Blending or Watermarking to embed the data on Video display frame. The function description of proposed PHY model is given in Figure 3-1. Figure 3-1 – Display Transmitter Functional Block Diagram The Smart Device Camera Capture Visual Frame from Screen is shown Figure 3-2. Figure 3-2 – Smartphone Receiver Functional Block Diagram The ROI of Screen Visual Area is extracted from the captured visual frame and then apply the Sequential Scalable 2D Code or M-FSK or M-QPSK detector based on mapping scheme applied. The data recovered by applying SS on the data decoded. The IEEE802.15.7r1 PHY for Invisible Data Embedded Display TX Schemes designed with built-in Scalable bitrate Controller by controlling the Video display refresh rate or by frames in which data to be encoded repeatedly.
15-16-0281-00-007a-phy-mac-proposal-for-invisible-data-embedded-display-tx-schemes.docx