# US 9,521,392 B2 · Method and system for frame rate conversion of 3D frames > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,521,392 B2 - Document ID: US9521392B2 - Status: Granted - Kind: B2 - Application number: 13/009,946 - Filed: 2011-01-20 - Published: 2012-06-21 - Granted: 2016-12-13 - Earliest claimed: 2010-12-21 - Assignees: Broadcom Corporation - Applicants: Priya Dwivedula; Michael Erwin; Eric Klings; Paul Gehman; Larry Pearlstein - Inventors: Priya Dwivedula; Michael Erwin; Eric Klings; Paul Gehman; Larry Pearlstein - Web page: https://patentgrep.com/patent/US9521392B2 ## CPC - H04N 13/139: Format conversion, e.g. of frame-rate or size - H04N 13/282: for generating image signals corresponding to three or more geometrical viewpoints, e.g. multi-view systems - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract A 3-dimensional (3D) video rendering device may convert a first left view video of a decompressed 3D video having a first frame rate to generate a second left view video having a second frame rate, and convert a first right view video having the first frame rate to generate a second right view video having the second frame rate. The second left view video having a particular pixel resolution may be converted by the 3D video rendering device to generate a third left view video having full pixel resolution of the decompressed 3D video. The second right view video having the particular pixel resolution may be converted to generate a third right view video having the full pixel resolution. The 3D video rendering device may generate a sequence of video frames for 3D video display based on the third left view video and the third right view video. ## Claims ### Claim 1 A method for processing video, the method comprising: in a three-dimensional (3D) video rendering device: converting a first left view video of a decompressed 3D video having a first frame rate to generate a second left view video having a second frame rate, using frame rate conversion (FRC); converting a first right view video of said decompressed 3D video having said first frame rate to generate a second right view video having said second frame rate, using said FRC; converting said second left view video having said second frame rate, which comprises a particular pixel resolution, to generate a third left view video having said second frame rate, which comprises full pixel resolution of said decompressed 3D video; converting said second right view video having said second frame rate, which comprises said particular pixel resolution, to generate a third right view video having said second frame rate, which comprises said full pixel resolution; and generating a sequence of video frames for 3D video display, wherein said sequence of video frames comprises frames corresponding to said third left view video and frames corresponding to said third right view video, and said frames corresponding to said third left view video alternate with said frames corresponding to said third right view video. ### Claim 2 (depends on 1) The method according to claim 1, wherein said FRC comprises frame interpolation or frame repetition. ### Claim 3 (depends on 1) The method according to claim 1, wherein said decompressed 3D video comprises said first left view video and said first right view video packed in a side-by side (half) format, and said first left view video and said first right view video each comprises half pixel resolution of said decompressed 3D video. ### Claim 4 (depends on 3) The method according to claim 3, comprising: scaling said second left view video having said second frame rate, which comprises said half pixel resolution, to generate said third left view video having said second frame rate, which comprises said full pixel resolution; and scaling said second right view video having said second frame rate, which comprises said half pixel resolution, to generate said third right view video having said second frame rate, which comprises said full pixel resolution. ### Claim 5 (depends on 1) The method according to claim 1, wherein said decompressed 3D video comprises said first left view video and said first right view video packed in a top-and-bottom (half) format, and said first left view video and said first right view video each comprises half pixel resolution of said decompressed 3D video. ### Claim 6 (depends on 5) The method according to claim 5, comprising: scaling said second left view video having said second frame rate, which comprises said half pixel resolution, to generate said third left view video having said second frame rate, which comprises said full pixel resolution; and scaling said second right view video having said second frame rate, which comprises said half pixel resolution, to generate said third right view video having said second frame rate, which comprises said full pixel resolution. ### Claim 7 (depends on 1) The method according to claim 1, wherein said decompressed 3D video comprises said first left view video and said first right view video packed in a frame packing format, and said first left view video and said first right view video each comprises said full pixel resolution. ### Claim 8 (depends on 7) The method according to claim 7, wherein said second left view video and said second right view video each comprises said full pixel resolution. ### Claim 9 (depends on 1) The method according to claim 1, wherein said decompressed 3D video comprises said first left view video and said first right view video in a stereoscopic format, and said first left view video and said first right view video each comprises said full pixel resolution. ### Claim 10 (depends on 9) The method according to claim 9, wherein said second left view video and said second right view video each comprises said full pixel resolution. ### Claim 11 A system for processing video, the system comprising: one or more processors, one or more circuits, or any combination thereof for use in a three-dimensional (3D) video rendering device, said one or more processors, one or more circuits, or any combination thereof being operable to: convert a first left view video of a decompressed 3D video having a first frame rate to generate a second left view video having a second frame rate, using frame rate conversion (FRC); convert a first right view video of said decompressed 3D video having said first frame rate to generate a second right view video having said second frame rate, using said (FRC); convert said second left view video having said second frame rate, which comprises a particular pixel resolution, to generate a third left view video having said second frame rate, which comprises full pixel resolution of said, decompressed 3D video; convert said second right view video having said second frame rate, which comprises said particular pixel resolution, to generate a third right view video having said second frame rate, which comprises said full pixel resolution; and generate a sequence of video frames for 3D video display, wherein said sequence of video frames comprises frames corresponding to said third left view video and frames corresponding to said third right view video, and said frames corresponding to said third left view video alternate with said frames corresponding to said third right view video. ### Claim 12 (depends on 11) The system according to claim 11, wherein said FRC comprises frame interpolation or frame repetition. ### Claim 13 (depends on 11) The system according to claim 11, wherein said decompressed 3D video comprises said first left view video and said first right view video packed in a side-by-side (half) format, and said first left view video and said first right view video each comprises half pixel resolution of said decompressed 3D video. ### Claim 14 (depends on 13) The system according to claim 13, wherein said one or more processors, one or more circuits, or any combination thereof are operable to: scale said second left view video having said second frame rate, which comprises said half pixel resolution, to generate said third left view video having said second frame rate, which comprises said full pixel resolution; and scale said second right view video having said second frame rate, which comprises said half pixel resolution, to generate said third right view video having said second frame rate, which comprises said full pixel resolution. ### Claim 15 (depends on 11) The system according to claim 11, wherein said decompressed 3D video comprises said first left view video and said first right view video packed in a top-and-bottom (half) format, and said first left view video and said first right view video each comprises half pixel resolution of said decompressed 3D video. ### Claim 16 (depends on 15) The system according to claim 15, wherein said one or more processors, one or more circuits, or any combination thereof are operable to: scale said second left view video having said second frame rate, which comprises said half pixel resolution, to generate said third left view video having said second frame rate, which comprises said full pixel resolution; and scale said second right view video having said second frame rate, which comprises said half pixel resolution, to generate said third right view video having said second frame rate, which comprises said full pixel resolution. ### Claim 17 (depends on 11) The system according to claim 11, wherein said decompressed 3D video comprises said first left view video and said first right view video packed in a frame packing format, and said first left view video and said first right view video each comprises said full pixel resolution. ### Claim 18 (depends on 17) The system according to claim 17, wherein said second left view video and said second right view video each comprises said full pixel resolution. ### Claim 19 (depends on 11) The system according to claim 11, wherein said decompressed 3D video comprises said first left view video and said first right view video in a stereoscopic format, and said first left view video and said first right view video each comprises said full pixel resolution. ### Claim 20 (depends on 19) The system according to claim 19, wherein said second left view video and said second right view video each comprises said full pixel resolution.