# US 9,438,858 B1 · Techniques for sharing image data remotely > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,438,858 B1 - Document ID: US9438858B1 - Status: Granted - Kind: B1 - Application number: 14/825,200 - Filed: 2015-08-13 - Granted: 2016-09-06 - Earliest claimed: 2015-08-13 - Assignees: Bandwidth.com, Inc. - Applicants: Bandwidth.com, Inc. - Inventors: Courtney Evans; Daniel Goslen - Web page: https://patentgrep.com/patent/US9438858B1 ## CPC - H04N 7/15: Conference systems - H04L 65/4015: {where at least one of the additional parallel sessions is real time or time sensitive, e.g. white board sharing, collaboration or spawning of a subconference} - H04N 7/147: {Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals (selecting H04Q)} - H04N 7/155: {involving storage of or access to video conference sessions (tracking arrangements for later retrieval of a computer conference content or participants activities H04L12/1831)} - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract Techniques are disclosed for sharing image data in a collaborative environment. In a network based server situated in an Internet Protocol (IP) based packet data network, a request may be received for a session ID from an image capture requesting device via a networked connection. The network based server may return a session ID to the image capture requesting device. The network based server may then receive image data indicative of a whiteboard and including marked corners. The image data may further comprise metadata including the session ID. The network based server may then process the received image, the processing including a rasterization process and a vectorization process. The network based server may then create a snapshot comprising the received image data, the rasterized image data, the vectorized image data, and the metadata. The network based server may then receive an access request for a snapshot associated with a session ID from a media consumption requesting device via a networked connection and provide access to the snapshot to the media consumption requesting device. ## Claims ### Claim 1 A method comprising: in a network based server situated in an Internet Protocol (IP) based packet data network: receiving a request for a session ID from an image capture requesting device via a networked connection; returning a session ID to the image capture requesting device; receiving original image data, the original image data indicative of a whiteboard, the whiteboard including calibration markers, the image data further comprising metadata, the metadata including the session ID; processing the received original image data, the processing including a rasterization process resulting in rasterized image data and a vectorization process on the rasterized image data resulting in vectorized image data; creating a snapshot comprising the received image data, the rasterized image data, the vectorized image data, and the metadata; storing the snapshot; receiving an access request for a snapshot associated with a session ID from a media consumption requesting device via a networked connection; and providing access to the snapshot corresponding to the session ID to the media consumption requesting device. ### Claim 2 (depends on 1) The method of claim 1, the rasterization process comprising: removing noise within the original image data; smoothing the original image data; finding an edgemap within the original image data; locating the calibration markers of the original image data via corner prediction; creating a transformation matrix using the calibration markers; and performing a matrix multiplication on the original image to adjust the perspective of the original image data. ### Claim 3 (depends on 2) The method of claim 2, the vectorization process comprising: converting the rasterized image data to uncompressed bitmap image data; converting the bitmap image data to vectorized image data by: performing path decomposition, turn policies, despeckling, polygon generation and penalty assignments, and smoothing and corner analysis resulting in scalable vector graphic image data. ### Claim 4 (depends on 1) The method of claim 1, the networked connection comprising one of an 802.11 WiFi network connection, a cellular network connection, an 802.16 WiMax network connection, a wireless network connection operating within a frequency range of 100 MHz and 700 MHz, and a wireless network connection operating within a frequency range of 3.5 GHz and 3.7 GHz. ### Claim 5 (depends on 2) The method of claim 2, the cellular networked connection utilizing an IP protocol based on one of a General Packet Radio Service (GPRS), Enhanced Data for GSM Evolution (EDGE), Evolution-Data Optimized (EV-DO), High Speed Packet Data (HSPD), High Speed Downlink Packet Access (HSPDA), Long-Term Evolution (LTE), Voice-over Long-Term Evolution (VoLTE), Wideband Code Division Multiple Access (WCDMA), Universal Mobile Telecommunications System (UMTS), or High Rate Packet Data (HRPD). ### Claim 6 A network based server situated in an Internet Protocol (IP) based packet data network, comprising: a memory unit for storing code; at least one processor for executing the stored code to: receive a request for a session ID from an image capture requesting device via a networked connection; return a session ID to the image capture requesting device; receive original image data, the original image data indicative of a whiteboard, the whiteboard including calibration markers, the image data further comprising metadata, the metadata including the session ID; process the received original image data, the processing including a rasterization process resulting in rasterized image data and a vectorization process on the rasterized image data resulting in vectorized image data; create a snapshot comprising the received image data, the rasterized image data, the vectorized image data, and the metadata; store the snapshot; receive an access request for a snapshot associated with a session ID from a media consumption requesting device via a networked connection; and provide access to the snapshot corresponding to the session ID to the media consumption requesting device. ### Claim 7 (depends on 6) The network based server of claim 6, the rasterization process comprising: removing noise within the original image data; smoothing the original image data; finding an edgemap within the original image data; locating the calibration markers of the original image data via corner prediction; creating a transformation matrix using the calibration markers; and performing a matrix multiplication on the original image to adjust the perspective of the original image data. ### Claim 8 (depends on 7) The network based server of claim 7, the vectorization process comprising: converting the rasterized image data to uncompressed bitmap image data; converting the bitmap image data to vectorized image data by: performing path decomposition, turn policies, despeckling, polygon generation and penalty assignments, and smoothing and corner analysis resulting in scalable vector graphic image data. ### Claim 9 (depends on 6) The network based server of claim 6, the networked connection comprising one of an 802.11 WiFi network connection, a cellular network connection, an 802.16 WiMax network connection, a wireless network connection operating within a frequency range of 100 MHz and 700 MHz, and a wireless network connection operating within a frequency range of 3.5 GHz and 3.7 GHz. ### Claim 10 (depends on 9) The network based server of claim 9, the cellular networked connection utilizing an IP protocol based on one of a General Packet Radio Service (GPRS), Enhanced Data for GSM Evolution (EDGE), Evolution-Data Optimized (EV-DO), High Speed Packet Data (HSPD), High Speed Downlink Packet Access (HSPDA), Long-Term Evolution (LTE), Voice-over Long-Term Evolution (VoLTE), Wideband Code Division Multiple Access (WCDMA), Universal Mobile Telecommunications System (UMTS), or High Rate Packet Data (HRPD). ### Claim 11 At least one non-transitory machine-readable medium comprising a set of instructions that in response to being executed on a computing device cause the computing device to: receive a request for a session ID from an image capture requesting device via a networked connection; return a session ID to the image capture requesting device; receive original image data, the original image data indicative of a whiteboard, the whiteboard including calibration markers, the image data further comprising metadata, the metadata including the session ID; process the received original image data, the processing including a rasterization process resulting in rasterized image data and a vectorization process on the rasterized image data resulting in vectorized image data; create a snapshot comprising the received image data, the rasterized image data, the vectorized image data, and the metadata; store the snapshot; receive an access request for a snapshot associated with a session ID from a media consumption requesting device via a networked connection; and provide access to the snapshot corresponding to the session ID to the media consumption requesting device. ### Claim 12 (depends on 11) The at least one non-transitory machine-readable medium of claim 11, wherein the rasterization process comprises instructions that in response to being executed on the computing device cause the computing device to: remove noise within the original image data; smooth the original image data; find an edgemap within the original image data; locate the calibration markers of the original image data via corner prediction; create a transformation matrix using the calibration markers; and perform a matrix multiplication on the original image to adjust the perspective of the original image data. ### Claim 13 (depends on 11) The at least one non-transitory machine-readable medium of claim 11, wherein the vectorization process comprises instructions that in response to being executed on the computing device cause the computing device to: convert the rasterized image data to uncompressed bitmap image data; convert the bitmap image data to vectorized image data by: performing path decomposition, turn policies, despeckling, polygon generation and penalty assignments, and smoothing and corner analysis resulting in scalable vector graphic image data. ### Claim 14 (depends on 11) The at least one non-transitory machine-readable medium of claim 11, wherein the networked connection comprises one of an 802.11 WiFi network connection, a cellular network connection, an 802.16 WiMax network connection, a wireless network connection operating within a frequency range of 100 MHz and 700 MHz, and a wireless network connection operating within a frequency range of 3.5 GHz and 3.7 GHz. ### Claim 15 (depends on 14) The at least one non-transitory machine-readable medium of claim 14, wherein the cellular networked connection utilizes an IP protocol based on one of a General Packet Radio Service (GPRS), Enhanced Data for GSM Evolution (EDGE), Evolution-Data Optimized (EV-DO), High Speed Packet Data (HSPD), High Speed Downlink Packet Access (HSPDA), Long-Term Evolution (LTE), Voice-over Long-Term Evolution (VoLTE), Wideband Code Division Multiple Access (WCDMA), Universal Mobile Telecommunications System (UMTS), or High Rate Packet Data (HRPD).