Patents by Inventor Xiaojun Du
Xiaojun Du has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11962746Abstract: A stereoscopic vision system uses at least two cameras having different parameters to image a scene and create stereoscopic views. The different parameters of the two cameras can be intrinsic or extrinsic, including, for example, the distortion profile of the lens in the cameras, the field of view of the lens, the orientation of the cameras, the positions of the cameras, the color spectrum of the cameras, the frame rate of the cameras, the exposure time of the cameras, the gain of the cameras, the aperture size of the lenses, or the like. An image processing apparatus is then used to process the images from the at least two different cameras to provide optimal stereoscopic vision to a display.Type: GrantFiled: November 17, 2022Date of Patent: April 16, 2024Assignee: IMMERVISION, INC.Inventors: Patrice Roulet, Jocelyn Parent, Pierre Konen, Simon Thibault, Pascale Nini, Xiaojun Du, Valentin Bataille, Jhinseok Lee
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Publication number: 20240117362Abstract: Embodiments of the present disclosure relate to lipid-PEGylated solid support and phosphoramidites derivatives, methods for preparing the same, and their uses in the delivery of oligonucleotide drugs to the cellular targets.Type: ApplicationFiled: August 16, 2023Publication date: April 11, 2024Inventors: Mufa Zou, David Yu, Aldrich N.K. Lau, Ruiming Zou, Wing C. Poon, Gang Zhao, Gengyu Du, Yun-Chiao Yao, Allen Wong, Xiaojun Li
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Publication number: 20240037719Abstract: A method for enhancing a wide angle image to improve the perspectives and the visual appeal thereof wide-angle images uses custom adaptive dewarping. The method is based on the scene image content of recognized objects in the image, the position of these objects in the image, the depth of these objects in the scene with respect to other objects and the general context of the image.Type: ApplicationFiled: October 16, 2023Publication date: February 1, 2024Applicant: ImmerVision, Inc.Inventors: Patrice ROULET, Pierre KONEN, Jocelyn PARENT, Simon THIBAULT, Xavier DALLAIRE, Xiaojun DU, Ebrahim MORTAZY
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Patent number: 11867898Abstract: A method for designing an optical system for providing reliable, robust and successful realization of a distortion variation function is presented. In a preferred embodiment, the proposed distortion variation optical system includes at least two non-symmetrical elements, which are moving in the transverse direction. The proposed freeform lens contains two transmissive refractive surfaces. The freeform elements designed with this method have preferably a flat surface and a non-symmetrical freeform surface. The two plano-surfaces are preferably made to face each other, so that a miniature camera can be offered. The value of the non-symmetrical freeform surface is used to produce variable optical power when the two freeform elements undergo a relative movement in the vertical direction. Using this method, an optical system with an active distortion, smaller form factor, and better imaging quality can be obtained.Type: GrantFiled: December 30, 2022Date of Patent: January 9, 2024Assignee: IMMERVISION, INCInventors: Zhenfeng Zhuang, Jocelyn Parent, Patrice Roulet, Simon Thibault, Xavier Dallaire, Pierre Konen, Valentin Bataille, Kevin Miao, Manuel Magini, Marie-Pier Bellemare, Viacheslav Natashyn, Xiaojun Du, Shirley Chan, Marcia Griffith, Sophie Gigliotti, Ebrahim Mortazy
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Patent number: 11790495Abstract: A method for enhancing a wide angle image to improve the perspectives and the visual appeal thereof wide-angle images uses custom adaptive dewarping. The method is based on the scene image content of recognized objects in the image, the position of these objects in the image, the depth of these objects in the scene with respect to other objects and the general context of the image.Type: GrantFiled: September 6, 2022Date of Patent: October 17, 2023Assignee: IMMERVISION, INC.Inventors: Patrice Roulet, Pierre Konen, Jocelyn Parent, Simon Thibault, Xavier Dallaire, Xiaojun Du, Ebrahim Mortazy
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Publication number: 20230136035Abstract: A method for designing an optical system for providing reliable, robust and successful realization of a distortion variation function is presented. In a preferred embodiment, the proposed distortion variation optical system includes at least two non-symmetrical elements, which are moving in the transverse direction. The proposed freeform lens contains two transmissive refractive surfaces. The freeform elements designed with this method have preferably a flat surface and a non-symmetrical freeform surface. The two plano-surfaces are preferably made to face each other, so that a miniature camera can be offered. The value of the non-symmetrical freeform surface is used to produce variable optical power when the two freeform elements undergo a relative movement in the vertical direction. Using this method, an optical system with an active distortion, smaller form factor, and better imaging quality can be obtained.Type: ApplicationFiled: December 30, 2022Publication date: May 4, 2023Inventors: Zhenfeng ZHUANG, Jocelyn PARENT, Patrice ROULET, Simon THIBAULT, Xavier DALLAIRE, Pierre KONEN, Valentin BATAILLE, Kevin MIAO, Manuel MAGINI, Marie-Pier BELLEMARE, Viacheslav NATASHYN, Xiaojun DU, Shirley CHAN, Marcia GRIFFITH, Sophie GIGLIOTTI, Ebrahim MORTAZY
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Publication number: 20230080519Abstract: A stereoscopic vision system uses at least two cameras having different parameters to image a scene and create stereoscopic views. The different parameters of the two cameras can be intrinsic or extrinsic, including, for example, the distortion profile of the lens in the cameras, the field of view of the lens, the orientation of the cameras, the positions of the cameras, the color spectrum of the cameras, the frame rate of the cameras, the exposure time of the cameras, the gain of the cameras, the aperture size of the lenses, or the like. An image processing apparatus is then used to process the images from the at least two different cameras to provide optimal stereoscopic vision to a display.Type: ApplicationFiled: November 17, 2022Publication date: March 16, 2023Inventors: Patrice ROULET, Jocelyn PARENT, Pierre KONEN, Simon THIBAULT, Pascale NINI, Xiaojun DU, Valentin BATAILLE, Jhinseok LEE
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Publication number: 20230057977Abstract: A method for designing an optical system creating at least two optical images with different field of view on a common image plane. The optical system includes at least one common optical element receiving the rays of light from the object, at least one splitting element to separate the rays of light in a primary and at least one secondary optical path, at least one reflecting element to orient the rays, at least one element forming an image in the primary path and at least one element forming an image in each secondary path. When an image sensor is located in the common image plane, at least one digital image file can be created from the optical images. Further image processing of the at least one digital image is possible in order to further improve the output from the system.Type: ApplicationFiled: August 18, 2022Publication date: February 23, 2023Inventors: Simon THIBAULT, Jocelyn PARENT, Patrice ROULET, Zhenfeng ZHUANG, Xavier DALLAIRE, Xiaojun DU, Pierre KONEN
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Patent number: 11561391Abstract: A method for designing an optical system for providing reliable, robust and successful realization of a distortion variation function is presented. In a preferred embodiment, the proposed distortion variation optical system includes at least two non-symmetrical elements, which are moving in the transverse direction. The proposed freeform lens contains two transmissive refractive surfaces. The freeform elements designed with this method have preferably a flat surface and a non-symmetrical freeform surface. The two plano-surfaces are preferably made to face each other, so that a miniature camera can be offered. The value of the non-symmetrical freeform surface is used to produce variable optical power when the two freeform elements undergo a relative movement in the vertical direction. Using this method, an optical system with an active distortion, smaller form factor, and better imaging quality can be obtained.Type: GrantFiled: July 30, 2021Date of Patent: January 24, 2023Assignee: IMMERVISION, INC.Inventors: Zhenfeng Zhuang, Jocelyn Parent, Patrice Roulet, Simon Thibault, Xavier Dallaire, Pierre Konen, Valentin Bataille, Kevin Miao, Manuel Magini, Marie-Pier Bellemare, Viacheslav Natashyn, Xiaojun Du, Shirley Chan, Marcia Griffith, Sophie Gigliotti, Ebrahim Mortazy
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Publication number: 20220414846Abstract: A method for enhancing a wide angle image to improve the perspectives and the visual appeal thereof wide-angle images uses custom adaptive dewarping. The method is based on the scene image content of recognized objects in the image, the position of these objects in the image, the depth of these objects in the scene with respect to other objects and the general context of the image.Type: ApplicationFiled: September 6, 2022Publication date: December 29, 2022Inventors: Patrice ROULET, Pierre KONEN, Jocelyn PARENT, Simon THIBAULT, Xavier DALLAIRE, Xiaojun DU, Ebrahim MORTAZY
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Patent number: 11528464Abstract: A stereoscopic vision system uses at least two cameras having different parameters to image a scene and create stereoscopic views. The different parameters of the two cameras can be intrinsic or extrinsic, including, for example, the distortion profile of the lens in the cameras, the field of view of the lens, the orientation of the cameras, the positions of the cameras, the color spectrum of the cameras, the frame rate of the cameras, the exposure time of the cameras, the gain of the cameras, the aperture size of the lenses, or the like. An image processing apparatus is then used to process the images from the at least two different cameras to provide optimal stereoscopic vision to a display.Type: GrantFiled: April 21, 2020Date of Patent: December 13, 2022Assignee: IMMERVISION, INC.Inventors: Patrice Roulet, Jocelyn Parent, Pierre Konen, Simon Thibault, Pascale Nini, Xiaojun Du, Valentin Batalle, Jhinseok Lee
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Patent number: 11475546Abstract: A method for enhancing a wide angle image to improve the perspectives and the visual appeal thereof wide-angle images uses custom adaptive dewarping. The method is based on the scene image content of recognized objects in the image, the position of these objects in the image, the depth of these objects in the scene with respect to other objects and the general context of the image.Type: GrantFiled: June 11, 2020Date of Patent: October 18, 2022Assignee: IMMERVISION, INC.Inventors: Patrice Roulet, Pierre Konen, Jocelyn Parent, Simon Thibault, Xavier Dallaire, Xiaojun Du, Ebrahim Mortazy
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Publication number: 20220035153Abstract: A method for designing an optical system for providing reliable, robust and successful realization of a distortion variation function is presented. In a preferred embodiment, the proposed distortion variation optical system includes at least two non-symmetrical elements, which are moving in the transverse direction. The proposed freeform lens contains two transmissive refractive surfaces. The freeform elements designed with this method have preferably a flat surface and a non-symmetrical freeform surface. The two plano-surfaces are preferably made to face each other, so that a miniature camera can be offered. The value of the non-symmetrical freeform surface is used to produce variable optical power when the two freeform elements undergo a relative movement in the vertical direction. Using this method, an optical system with an active distortion, smaller form factor, and better imaging quality can be obtained.Type: ApplicationFiled: July 30, 2021Publication date: February 3, 2022Inventors: Zhenfeng ZHUANG, Jocelyn PARENT, Patrice ROULET, Simon THIBAULT, Xavier DALLAIRE, Pierre KONEN, Valentin BATAILLE, Kevin MIAO, Manuel MAGINI, Marie-Pier BELLEMARE, Viacheslav NATASHYN, Xiaojun DU, Shirley CHAN, Marcia GRIFFITH, Sophie GIGLIOTTI, Ebrahim MORTAZY
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Publication number: 20210405355Abstract: A method for designing a wide-angle optical system having at least one freeform optical surface without rotational symmetry to create a custom 2D object-image mapping. The method is based on iteratively adjusting the at least one freeform optical 2D surface shape to have the exact 2D object-image mapping required and then adjusting the optical element surfaces to meet the other required optical specifications. The iterative method is applied until both the desired 2D object-image mapping and the other required optical specifications are reached.Type: ApplicationFiled: June 28, 2021Publication date: December 30, 2021Inventors: Jocelyn PARENT, Simon THIBAULT, Zhenfeng ZHUANG, Patrice ROULET, Xavier DALLAIRE, Xiaojun DU, Pierre KONEN
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Patent number: 11172092Abstract: Systems and methods in accordance with the invention allow automatic recording, sharing, and communicating of different parameters associated with images and their imager to define a specific system behavior of a display device or an algorithm unit. Examples of information include imager parameters, environment parameters, image processing and enhancement parameters, coordinates of a section of wide-angle scene image content, display parameters, defined user experience, defined system behavior or any information to be recorded, shared, and communicated. To avoid loss of information, the information is encoded directly in the picture using a marker. This way, the information is robustly transferred from the imager to the display unit. According to the information, the final image can be automatically corrected and enhanced before display, different associated parameters can be displayed on final image or be used with another output.Type: GrantFiled: January 12, 2021Date of Patent: November 9, 2021Assignee: IMMERVISION, INC.Inventors: Pierre Konen, Pascale Nini, Jocelyn Parent, Patrice Roulet, Simon Thibault, Hu Zhang, Marie-Eve Gosselin, Valentin Bataille, Xiaojun Du
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Publication number: 20210136246Abstract: Systems and methods in accordance with the invention allow automatic recording, sharing, and communicating of different parameters associated with images and their imager to define a specific system behavior of a display device or an algorithm unit. Examples of information include imager parameters, environment parameters, image processing and enhancement parameters, coordinates of a section of wide-angle scene image content, display parameters, defined user experience, defined system behavior or any information to be recorded, shared, and communicated. To avoid loss of information, the information is encoded directly in the picture using a marker. This way, the information is robustly transferred from the imager to the display unit. According to the information, the final image can be automatically corrected and enhanced before display, different associated parameters can be displayed on final image or be used with another output.Type: ApplicationFiled: January 12, 2021Publication date: May 6, 2021Inventors: Pierre KONEN, Pascale NINI, Jocelyn PARENT, Patrice ROULET, Simon THIBAULT, Hu ZHANG, Marie-Eve GOSSELIN, Valentin BATAILLE, Xiaojun DU
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Patent number: 10958834Abstract: The present invention is a system for assembling panoramic images of a scene captured by a panoramic image capture device having a decoding unit configured to read image content data from the image capture device, an information reading unit configured to extract device parameters about the capture device, and an image processing unit configured to assemble an output image using the image content data and the device parameters.Type: GrantFiled: July 21, 2017Date of Patent: March 23, 2021Assignee: IMMERVISION, INC.Inventors: Patrice Roulet, Xiaojun Du, Pierre Konen, Simon Thibault, Jocelyn Parent, Pascale Nini, Alessandro Gasparini, Valentin Bataille, Jhinseok Lee
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Patent number: 10924623Abstract: Systems and methods in accordance with the invention allow automatic recording, sharing, and communicating of different parameters associated with images and their imager to define a specific system behavior of a display device or an algorithm unit. Examples of information include imager parameters, environment parameters, image processing and enhancement parameters, coordinates of a section of wide-angle scene image content, display parameters, defined user experience, defined system behavior or any information to be recorded, shared, and communicated. To avoid loss of information, the information is encoded directly in the picture using a marker. This way, the information is robustly transferred from the imager to the display unit. According to the information, the final image can be automatically corrected and enhanced before display, different associated parameters can be displayed on final image or be used with another output.Type: GrantFiled: November 13, 2019Date of Patent: February 16, 2021Assignee: IMMERVISION, INC.Inventors: Pierre Konen, Pascale Nini, Jocelyn Parent, Patrice Roulet, Simon Thibault, Hu Zhang, Marie-Eve Gosselin, Valentin Bataille, Xiaojun Du
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Publication number: 20200394770Abstract: A method for enhancing a wide angle image to improve the perspectives and the visual appeal thereof wide-angle images uses custom adaptive dewarping. The method is based on the scene image content of recognized objects in the image, the position of these objects in the image, the depth of these objects in the scene with respect to other objects and the general context of the image.Type: ApplicationFiled: June 11, 2020Publication date: December 17, 2020Inventors: Patrice ROULET, Pierre KONEN, Jocelyn PARENT, Simon THIBAULT, Xavier DALLAIRE, Xiaojun DU, Ebrahim MORTAZY
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Patent number: 10748243Abstract: An image distortion transformation method for transforming an original image by an imager having an original distortion profile to a transformed image optimized for a distortion processing unit includes inputting the original image from the imager into the transformation unit, inputting an original image distortion profile into the original distortion profile memory of the transformation unit, and inputting a target distortion profile into the target distortion profile memory of the transformation unit. The target distortion profile is different from the original distortion profile. The method further includes transforming the original image into a transformed image by transforming the distortion profile of the original image from the original image distortion profile to the target image distortion profile, and outputting the transformed image from the transformation unit.Type: GrantFiled: December 19, 2018Date of Patent: August 18, 2020Assignee: ImmerVision, Inc.Inventors: Patrice Roulet, Xiaojun Du, Jocelyn Parent, Pierre Konen, Simon Thibault, Pascale Nini, Valentin Bataille, Jhinseok Lee, Hu Zhang