Patents by Inventor Hsin-Yueh CHANG
Hsin-Yueh CHANG 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: 11863881Abstract: The present disclosure provides systems, apparatus, methods, and computer-readable media that support multi-frame depth-of-field (MF-DOF) for deblurring background regions of interest (ROIs), such as background faces, that may be blurred due to a large aperture size or other characteristics of the camera used to capture the image frame. The processing may include the use of two image frames obtained at two different focus points corresponding to the multiple ROIs in the image frame. The corrected image frame may be determined by deblurring one or more ROIs of the first image frame using an AI-based model and/or local gradient information. The MF-DOF may allow selectively increasing a depth-of-field (DOF) of an image to provide focused capture of multiple regions of interest, without causing a reduction in aperture (and subsequently an amount of light available for photography) or background blur that may be desired for photography.Type: GrantFiled: December 22, 2021Date of Patent: January 2, 2024Assignee: QUALCOMM IncorporatedInventors: Wen-Chun Feng, Yu-Ren Lai, Hsin Yueh Chang
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Publication number: 20230342889Abstract: Systems, methods, and non-transitory media are provided for frequency domain edge enhancement of multi-exposure high dynamic range (HDR) images. An example method can include determining an alignment between an HDR frame and a frame having an exposure time above a threshold; adjusting the frame based on the alignment; determining a gradient estimation map representing differences between image blocks in the HDR frame and image blocks in the frame; and generating, based on the gradient estimation map, a merged frame that includes a combination of at least some image data from the HDR frame and at least some image data from the frame.Type: ApplicationFiled: April 26, 2022Publication date: October 26, 2023Inventors: Wen-Chun FENG, Hsuan-Ying LIAO, Hsin Yueh CHANG, Yu-Ren LAI, Shizhong LIU, Weiliang LIU
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Patent number: 11792505Abstract: Systems and techniques are provided for processing image data. According to some aspects, a process can include obtaining a frame captured using an image sensor of a device. The process can include detecting an orientation of the device using a position sensor. The process can further include determining, based on the orientation, a transform to be applied to a region of interest in the frame. The process can include applying the transform to the region of interest. The process can further include providing the transformed region of interest to the object detection algorithm.Type: GrantFiled: February 2, 2022Date of Patent: October 17, 2023Assignee: QUALCOMM IncorporatedInventors: Wen-Chun Feng, Yu-Ren Lai, Hsin Yueh Chang
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Patent number: 11689710Abstract: An image processing device, including an image generation circuit and a multifocal length processing circuit, is provided. The image generation circuit generates multiple depth plane images with depth information and multiple corresponding zoom control information, and merges the multiple depth plane images and the multiple zoom control information according to an arrangement rule, to be a merged image data. The multifocal length processing circuit is configured to decompose the merged image data to restore the multiple depth plane images and the corresponding multiple zoom control information according to the arrangement rule, and to determine a time at which the restored multiple depth plane images are transmitted to a display device and a time at which the restored multiple zoom control information are transmitted to a zoom lens according to a frame rate of the display device. The disclosure also provides an image processing method and a 3D image generation system.Type: GrantFiled: March 30, 2022Date of Patent: June 27, 2023Assignee: Coretronic CorporationInventors: Hsin-Yueh Chang, Li-Ming Chen
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Publication number: 20230012219Abstract: The present disclosure provides systems, apparatus, methods, and computer-readable media that support multi-frame depth-of-field (MF-DOF) for deblurring background regions of interest (ROIs), such as background faces, that may be blurred due to a large aperture size or other characteristics of the camera used to capture the image frame. The processing may include the use of two image frames obtained at two different focus points corresponding to the multiple ROIs in the image frame. The corrected image frame may be determined by deblurring one or more ROIs of the first image frame using an AI-based model and/or local gradient information. The MF-DOF may allow selectively increasing a depth-of-field (DOF) of an image to provide focused capture of multiple regions of interest, without causing a reduction in aperture (and subsequently an amount of light available for photography) or background blur that may be desired for photography.Type: ApplicationFiled: December 22, 2021Publication date: January 12, 2023Inventors: Wen-Chun Feng, Yu-Ren Lai, Hsin Yueh Chang
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Publication number: 20230011950Abstract: Systems and techniques are provided for processing image data. According to some aspects, a process can include obtaining a frame captured using an image sensor of a device. The process can include detecting an orientation of the device using a position sensor. The process can further include determining, based on the orientation, a transform to be applied to a region of interest in the frame. The process can include applying the transform to the region of interest. The process can further include providing the transformed region of interest to the object detection algorithm.Type: ApplicationFiled: February 2, 2022Publication date: January 12, 2023Inventors: Wen-Chun FENG, Yu-Ren LAI, Hsin Yueh CHANG
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Publication number: 20220321869Abstract: An image processing device, including an image generation circuit and a multifocal length processing circuit, is provided. The image generation circuit generates multiple depth plane images with depth information and multiple corresponding zoom control information, and merges the multiple depth plane images and the multiple zoom control information according to an arrangement rule, to be a merged image data. The multifocal length processing circuit is configured to decompose the merged image data to restore the multiple depth plane images and the corresponding multiple zoom control information according to the arrangement rule, and to determine a time at which the restored multiple depth plane images are transmitted to a display device and a time at which the restored multiple zoom control information are transmitted to a zoom lens according to a frame rate of the display device. The disclosure also provides an image processing method and a 3D image generation system.Type: ApplicationFiled: March 30, 2022Publication date: October 6, 2022Applicant: Coretronic CorporationInventors: Hsin-Yueh Chang, Li-Ming Chen
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Publication number: 20220244628Abstract: A projection device, including an illumination system, a light valve and a projection lens, is provided. The illumination system is used to provide an illumination beam. The light valve is disposed on a transmission path of the illumination beam and is configured to convert the illumination beam to an image beam. The light valve has a long side and a short side, and the short side of the light valve is parallel to a first direction. The illumination beam is incident on an effective display region of the light valve from the short side of the light valve. The projection lens is disposed on a transmission path of the image beam and is configured to project the image beam out of the projection device to form a vertical image frame. A short side of the vertical image frame is parallel to the first direction.Type: ApplicationFiled: January 21, 2022Publication date: August 4, 2022Applicant: Coretronic CorporationInventors: Shi-Hao Lin, Hsin-Yueh Chang
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Patent number: 11249379Abstract: An illumination system including first, second and third light sources, a splitting element and a wavelength conversion element is provided. The first light source emits a first light beam. The second light source emits a second light beam. The third light source emits a third light beam. The splitting element is disposed on transmission paths of the first, the second and the third light beams. The splitting element reflects the first and the third light beams, and allows the second light beam to pass through. During a first time period, the first light beam is transmitted to a first position and the second light beam is transmitted to a second position. During a second time period, the third light beam is transmitted to the first position and the second light beam is transmitted to the second position. Furthermore, a projection apparatus is also provided.Type: GrantFiled: January 15, 2019Date of Patent: February 15, 2022Assignee: Coretronic CorporationInventors: Hsin-Yueh Chang, Haw-Woei Pan, Chi-Tang Hsieh
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Patent number: 11170733Abstract: A projector and a projection method are provided. The projector is coupled to a display card and includes a light source, a light valve, a projection lens, and a processor. The light source provides an illumination beam. The light valve converts the illumination beam into an image beam. The projection lens projects the image beam to the outside of the projector to form an imaged image. The processor receives an input image signal from the display card, and generates a control signal corresponding to the input image signal according to a refresh rate of the input image signal. When the refresh rate is greater than a threshold, the imaged image has a first resolution. When the refresh rate is less than the threshold, the light valve performs a pixel shifting operation, so that the imaged image has a second resolution. The first resolution is less than the second resolution.Type: GrantFiled: August 6, 2020Date of Patent: November 9, 2021Assignee: Coretronic CorporationInventors: Hsin-Yueh Chang, Li-Ming Chen
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Patent number: 11163227Abstract: An illumination system, a wavelength conversion module, a projection apparatus and an illumination control method are provided. The illumination system includes excitation light source modules emitting excitation beams and a wavelength conversion module located on a transmission path of the excitation beams and including a substrate, a first region and a second region. The first and second regions are respectively located on a first surface and a second surface of the substrate. When the illumination system is in a high chroma illumination mode, one of the excitation light source modules provides the excitation beams to the first region, and the excitation beams form a first illumination beam through the first region. When the illumination system is in a high brightness illumination mode, one of the excitation light source modules provides the excitation beams to the second region, and the excitation beams form a second illumination beam through the second region.Type: GrantFiled: December 25, 2019Date of Patent: November 2, 2021Assignee: Coretronic CorporationInventors: Chun-Wei Lin, Hsin-Yueh Chang
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Publication number: 20210049976Abstract: A projector and a projection method are provided. The projector is coupled to a display card and includes a light source, a light valve, a projection lens, and a processor. The light source provides an illumination beam. The light valve converts the illumination beam into an image beam. The projection lens projects the image beam to the outside of the projector to form an imaged image. The processor receives an input image signal from the display card, and generates a control signal corresponding to the input image signal according to a refresh rate of the input image signal. When the refresh rate is greater than a threshold, the imaged image has a first resolution. When the refresh rate is less than the threshold, the light valve performs a pixel shifting operation, so that the imaged image has a second resolution. The first resolution is less than the second resolution.Type: ApplicationFiled: August 6, 2020Publication date: February 18, 2021Applicant: Coretronic CorporationInventors: Hsin-Yueh Chang, Li-Ming Chen
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Publication number: 20200234617Abstract: A display apparatus and method for optimizing a display mode are provided. The display apparatus and method for optimizing a display mode include a display, a memory and a processor. The memory includes a sampling module, a neural network module and a mode selection module. The display displays an image data stream and has display modes. The sampling module samples the image data stream in a first time interval to generate sampling data in response to a trigger signal. The neural network module classifies the sampling data through the neural network to generate a classification outcome corresponding to the display modes. The mode selection module selects one of the display modes according to the classification outcome to display the image data stream.Type: ApplicationFiled: January 14, 2020Publication date: July 23, 2020Applicants: Coretronic Corporation, Optoma CorporationInventors: Hsin-Yueh Chang, Li-Ming Chen, Yuan-Mao Tsui
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Publication number: 20200209726Abstract: An illumination system, a wavelength conversion module, a projection apparatus and an illumination control method are provided. The illumination system includes excitation light source modules emitting excitation beams and a wavelength conversion module located on a transmission path of the excitation beams and including a substrate, a first region and a second region. The first and second regions are respectively located on a first surface and a second surface of the substrate. When the illumination system is in a high chroma illumination mode, one of the excitation light source modules provides the excitation beams to the first region, and the excitation beams form a first illumination beam through the first region. When the illumination system is in a high brightness illumination mode, one of the excitation light source modules provides the excitation beams to the second region, and the excitation beams form a second illumination beam through the second region.Type: ApplicationFiled: December 25, 2019Publication date: July 2, 2020Applicant: Coretronic CorporationInventors: Chun-Wei Lin, Hsin-Yueh Chang
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Patent number: 10585276Abstract: A wavelength-converting wheel, for converting an excitation beam having an output power greater than or equal to 100 W into a conversion beam, is provided. The wavelength-converting wheel includes a turntable having an annular irradiation portion, an adhesive layer disposed at the annular irradiation portion, a reflective layer disposed on the adhesive layer, and a wavelength-converting layer. The wavelength-converting layer is disposed on the reflective layer and has a light receiving surface configured to be irradiated by the excitation beam. The invention further provides an illumination system including the wavelength-converting wheel, and a projection apparatus including the illumination system. The heat dissipating ability of the wavelength-converting wheel is improved. The material of the wavelength-converting layer is not deteriorated or damaged due to the heat of the excitation beam.Type: GrantFiled: March 22, 2019Date of Patent: March 10, 2020Assignee: Coretronic CorporationInventors: Chi-Tang Hsieh, Jo-Han Hsu, Chia-Lun Tsai, Hsin-Yueh Chang
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Patent number: 10534247Abstract: The disclosure provides a projector, an image generation device, and an image generation method thereof. The projector includes an image generator, a light combiner, and a projection lens. The image generator includes light valves and generates an image beam. The light combiner includes a diffusing and filtering component, which generates a combined beam, and the image generator receives the combined beam from the diffusing and filtering component. In a first time period, the light combiner converts a first input beam into partial beams. The partial beams are transmitted to the light valves respectively. In a second time period, the light combiner receives a second input beam. The diffusing and filtering component filters out one of the partial beams, and the other of the partial beams are transmitted with the second input beam respectively to the light valves.Type: GrantFiled: January 14, 2019Date of Patent: January 14, 2020Assignee: Coretronic CorportionInventors: Haw-Woei Pan, Chi-Tang Hsieh, Hsin-Yueh Chang
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Publication number: 20190361221Abstract: A wavelength-converting wheel, for converting an excitation beam having an output power greater than or equal to 100 W into a conversion beam, is provided. The wavelength-converting wheel includes a turntable having an annular irradiation portion, an adhesive layer disposed at the annular irradiation portion, a reflective layer disposed on the adhesive layer, and a wavelength-converting layer. The wavelength-converting layer is disposed on the reflective layer and has a light receiving surface configured to be irradiated by the excitation beam. The invention further provides an illumination system including the wavelength-converting wheel, and a projection apparatus including the illumination system. The heat dissipating ability of the wavelength-converting wheel is improved. The material of the wavelength-converting layer is not deteriorated or damaged due to the heat of the excitation beam.Type: ApplicationFiled: March 22, 2019Publication date: November 28, 2019Inventors: CHI-TANG HSIEH, JO-HAN HSU, CHIA-LUN TSAI, HSIN-YUEH CHANG
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Publication number: 20190253676Abstract: An illumination system includes an exciting light source module, a dichroic element, a wavelength-converting element, a light homogenizing element and a lens array. The exciting light source module includes a plurality of exciting light sources, each for providing an exciting beam. The dichroic element allows the exciting beam to be transmitted to the wavelength-converting element. The wavelength-converting element converts the exciting beam into a converted beam and reflects the converted beam to the dichroic element, and the dichroic element transmits the converted beam to the light homogenizing element. The light homogenizing element has a light incident end. The lens array includes a plurality of lens units, and a long side of each of the lens units is parallel to a long side of the light incident end when being projected along the transmission path of the converted beam to the light incident end.Type: ApplicationFiled: January 31, 2019Publication date: August 15, 2019Inventors: CHIH-HSIEN TSAI, HSIN-YUEH CHANG, YI-HSUANG WENG, JO-HAN HSU, CHI-TANG HSIEH
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Publication number: 20190227417Abstract: The disclosure provides a projector, an image generation device, and an image generation method thereof. The projector includes an image generator, a light combiner, and a projection lens. The image generator includes light valves and generates an image beam. The light combiner includes a diffusing and filtering component, which generates a combined beam, and the image generator receives the combined beam from the diffusing and filtering component. In a first time period, the light combiner converts a first input beam into partial beams. The partial beams are transmitted to the light valves respectively. In a second time period, the light combiner receives a second input beam. The diffusing and filtering component filters out one of the partial beams, and the other of the partial beams are transmitted with the second input beam respectively to the light valves.Type: ApplicationFiled: January 14, 2019Publication date: July 25, 2019Applicant: Coretronic CorporationInventors: Haw-Woei Pan, Chi-Tang Hsieh, Hsin-Yueh Chang
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Publication number: 20190227418Abstract: An illumination system including first, second and third light sources, a splitting element and a wavelength conversion element is provided. The first light source emits a first light beam. The second light source emits a second light beam. The third light source emits a third light beam. The splitting element is disposed on transmission paths of the first, the second and the third light beams. The splitting element reflects the first and the third light beams, and allows the second light beam to pass through. During a first time period, the first light beam is transmitted to a first position and the second light beam is transmitted to a second position. During a second time period, the third light beam is transmitted to the first position and the second light beam is transmitted to the second position. Furthermore, a projection apparatus is also provided.Type: ApplicationFiled: January 15, 2019Publication date: July 25, 2019Applicant: Coretronic CorporationInventors: Hsin-Yueh Chang, Haw-Woei Pan, Chi-Tang Hsieh