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Content for  TS 23.333  Word version:  18.1.0

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6.2.22 Video Region-of-Interest (ROI)  6.2.22.1 Video Region-of-Interest (ROI) using FECC  6.2.22.2 "Predefined ROI" mode  6.2.22.3 "Arbitrary ROI" mode 
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6.2.22  Video Region-of-Interest (ROI) |R13|  p. 142

6.2.22.1  Video Region-of-Interest (ROI) using FECC  p. 142

Figure 6.2.22.1.1 shows the message sequence chart example for indicating Video Region-of-Interest (ROI) using FECC.
Copy of original 3GPP image for 3GPP TS 23.333, Fig. 6.2.22.1.1: Procedure to indicate Video ROI using FECC
Figure 6.2.22.1.1: Procedure to indicate Video ROI using FECC
(⇒ copy of original 3GPP image)
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6.2.22.2  "Predefined ROI" mode  p. 142

Figure 6.2.22.2.1 shows the message sequence chart example for indicating Predefined ROI mode.
Copy of original 3GPP image for 3GPP TS 23.333, Fig. 6.2.22.2.1: Procedure to indicate Predefined ROI mode
Figure 6.2.22.2.1: Procedure to indicate Predefined ROI mode
(⇒ copy of original 3GPP image)
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When the MRFC requests the IMS resources from the MRFP, the MRFC may optionally request the MRFP to support the RTCP feedback message capability for "Predefined ROI" type expressed by the parameter "3gpp-roi-predefined", as described in TS 26.114, media-level SDP predefined ROI attribute "a=predefined_ROI" defined in TS 26.114 to negotiate the predefined ROI for sending and receiving video, and the RTP header extension capability for carriage of predefined ROI information as defined in RFC 5285 and TS 26.114.
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6.2.22.3  "Arbitrary ROI" mode  p. 143

Figure 6.2.22.3.1 shows the message sequence chart example for indicating Arbitrary ROI mode.
Copy of original 3GPP image for 3GPP TS 23.333, Fig. 6.2.22.3.1: Procedure to indicate Arbitrary ROI mode
Figure 6.2.22.3.1: Procedure to indicate Arbitrary ROI mode
(⇒ copy of original 3GPP image)
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When the MRFC requests the IMS resources from the MRFP, the MRFC may optionally request the MRFP to support the RTCP feedback message capability for "Arbitrary ROI" type expressed by the parameter "3gpp-roi-arbitrary", as described in TS 26.114, and the RTP header extension capability for carriage of arbitrary ROI information as defined in RFC 5285 and TS 26.114.
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