# US 2016/0366397 A1 · Embedded system, fast structured light based 3d camera system and method for obtaining 3d images using the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2016/0366397 A1 - Document ID: US20160366397A1 - Status: Published application - Kind: A1 - Application number: 15/180,024 - Filed: 2016-06-11 - Published: 2016-12-15 - Earliest claimed: 2015-06-12 - Assignees: Research & Business Foundation Sungkyunkwan University - Applicants: Research & Business Foundation Sungkyunkwan University - Inventors: Suk-han LEE; Atif MUHAMMAD; Kuk-jin HAN - Web page: https://patentgrep.com/patent/US20160366397A1 ## CPC - H04N 13/296: Synchronisation thereof; Control thereof - G01B 11/2513: {with several lines being projected in more than one direction, e.g. grids, patterns} - G01S 7/4911: Transmitters - G01S 17/46: Indirect determination of position data - G01S 17/89: for mapping or imaging - H04N 13/204: using stereoscopic image cameras (stereoscopic photography G03B35/00) - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - G01B: MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS - G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES ## Abstract Disclosed are an embedded system, a fast 3D camera system based on structured light, and a method for acquiring 3D images using the system. The embedded system includes a pattern generation module for generating the pattern in real time and a camera trigger module for converting a camera synchronization signal into a trigger signal and transmitting the signal to a camera. A transform module for transforming the pattern into a video signal and a communication module for receiving a command for projecting patterns and capturing images may be further included. The fast 3D camera system based on structured light includes an embedded system for generating a pattern in real time upon receiving a command for projecting patterns and capturing images, a projection device for projecting the pattern, and a camera for capturing the image of an object onto which the pattern is projected. ## Claims ### Claim 1 An apparatus for use with a computing device, a camera, and a projection device to reconstruct a 3D image of an object, the apparatus being separate from the computing device and comprising: a pattern generation module to generate a first pattern; and a camera trigger module to generate a trigger signal and transmit the trigger signal to the camera to synchronize a projection of the first pattern onto the object by the projection device with an image capture operation of the camera. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the pattern generation module generates the first pattern in real time in response to a command from the computing device. ### Claim 3 (depends on 1) The apparatus of claim 1, wherein the pattern generation module generates a second pattern while the projection device projects the first pattern onto the object. ### Claim 4 (depends on 2) The apparatus of claim 2, further comprising a communication module for receiving the command from the computing device. ### Claim 5 (depends on 1) The apparatus of claim 1, further comprising a transform module for transforming the first pattern into the video signal for use by the projection device to project the first pattern onto the object. ### Claim 6 (depends on 1) The apparatus of claim 1, wherein the first pattern is not stored in a memory of the apparatus. ### Claim 7 (depends on 3) The apparatus of claim 3, wherein neither the first pattern nor the second pattern is stored in a memory of the apparatus. ### Claim 8 A 3D imaging system, comprising: an embedded system to generate a first pattern in real time in response to a command received from a computing device, the computing device being separate from the embedded system; a projection device to project the first pattern onto an object; and a camera to capture an image of the object with the first pattern projected thereon. ### Claim 9 (depends on 8) The 3D imaging system of claim 8, wherein the first pattern is not stored in a memory of the embedded system. ### Claim 10 (depends on 9) The 3D imaging system of claim 9, wherein imaging system includes the computing device and the computing device comprises: a user interface through which a user may cause the computing device to transmit the command to the embedded system and through which the user may monitor generation of a 3D image of the object by the computing device; and a communication interface to transmit the command to the embedded system and to receive the image of the object captured by the camera. ### Claim 11 (depends on 8) The 3D imaging system of claim 8, wherein wherein the embedded system generates a second pattern while the projection device projects the first pattern onto the object. ### Claim 12 (depends on 8) The 3D imaging system of claim 8, wherein the embedded system generates a trigger signal and transmit the trigger signal to the camera to synchronize the projection of the first pattern onto the object by the projection device with the capture of the image of the object with the first pattern projected thereon by the camera. ### Claim 13 A method for generating a 3D image of an object the method comprising: generating, by an embedded system, a pattern in real time in response to a command received from a computing device; generating, by the embedded system, a camera synchronization signal; converting, by the embedded system, the camera synchronization signal into a trigger signal; and transmitting, by the embedded system, the trigger signal to a camera. ### Claim 14 (depends on 13) The method of claim 13, further comprising: transmitting, by the computing system, the command to the embedded system via any one of a wired link and a wireless link. ### Claim 15 (depends on 13) The method of claim 13, wherein the pattern is not stored in a memory of the embedded system. ### Claim 16 (depends on 15) The method of claim 15, further comprising: transforming, by the embedded system, the pattern into a video signal; and transmitting the video signal to a projection device to cause the projection device to project the pattern onto the object. ### Claim 17 (depends on 16) The method of claim 16, further comprising: capturing, by the camera, an image of the object having the pattern projected thereon. ### Claim 18 (depends on 17) The method of claim 17, further comprising: generating, by the computing device, the 3D image of the object from the captured image. ### Claim 19 (depends on 16) The method of claim 16, wherein the method is performed a plurality of times according to an initial setup process.