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公开(公告)号：US20150029354A1
公开(公告)日：2015-01-29
申请号：US14076440
申请日：2013-11-11
Applicant: Quanta Computer Inc.
Inventor： Wen-Chu Yang , Keng-Sheng Lin
IPC: H04N5/235
CPC classification number: H04N5/2355 , G06T5/009 , G06T5/50 , G06T2207/10016 , G06T2207/10144 , G06T2207/20208 , G06T2207/20221 , G06T2207/30196
Abstract: The present invention discloses a method of filming a high dynamic range video. The method includes: using an image sensor to capture an original frame which is interlaced by a plurality of long exposure areas and a plurality of short exposure areas; forming a long exposure field via a plurality of long exposure areas and forming a short exposure field via a plurality of short exposure areas; forming a reconstructed long exposure field and a reconstructed short exposure field having the same resolution as the original frame via a reconstruction process by a pixel value of each pixel in the long exposure field and the short exposure field; and forming a high dynamic range image based on the pixel value of each pixel of the reconstructed long exposure field and the reconstructed short exposure field via a merging process.
Abstract translation: 本发明公开了一种拍摄高动态范围视频的方法。 该方法包括：使用图像传感器捕获由多个长曝光区域和多个短曝光区域隔行扫描的原始帧; 经由多个长曝光区域形成长曝光场，经由多个短曝光区域形成短曝光场; 经由重构处理，通过长曝光场和短曝光场中的每个像素的像素值，形成具有与原始帧相同的分辨率的重建的长曝光场和重构的短曝光场; 并且通过合并处理基于重建的长曝光场和重构的短曝光场的每个像素的像素值形成高动态范围图像。
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公开(公告)号：US09554059B1
公开(公告)日：2017-01-24
申请号：US14873711
申请日：2015-10-02
Applicant: Quanta Computer Inc.
Inventor： Chin-An Lin , Chung-Te Li , Keng-Sheng Lin , Hao-Jen Wang , Hsin-Yu Chen
CPC classification number: H04N5/2355 , H04N5/2351 , H04N5/2356 , H04N5/35554 , H04N5/35581
Abstract: An exposure-control system and an associated exposure control method are provided. The exposure-control system includes: an image capturing unit configured to capture a long-exposure image and a short-exposure image with a first exposure value and a second exposure value, respectively; and a processor, configured to calculate histograms of the long-exposure image and the short-exposure image, and calculate an exposure ratio according to the calculated histograms, the first and second exposure values, wherein when the exposure ratio is smaller than a first threshold, the processor switches a current exposure mode to a low dynamic range mode. When the exposure ratio is larger than a second threshold, the processor switches the current exposure mode to a high dynamic range mode. When the exposure ratio is between the first threshold and the second threshold, the processor does not switch the current exposure mode.
Abstract translation: 提供曝光控制系统和相关的曝光控制方法。 曝光控制系统包括：图像拍摄单元，被配置为分别捕获具有第一曝光值和第二曝光值的长曝光图像和短曝光图像; 以及处理器，被配置为计算长曝光图像和短曝光图像的直方图，并且根据所计算的直方图，第一和第二曝光值计算曝光比，其中当曝光比小于第一阈值时 处理器将当前曝光模式切换到低动态范围模式。 当曝光比大于第二阈值时，处理器将当前曝光模式切换到高动态范围模式。 当曝光比在第一阈值和第二阈值之间时，处理器不切换当前曝光模式。
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公开(公告)号：US20150042836A1
公开(公告)日：2015-02-12
申请号：US14073067
申请日：2013-11-06
Applicant: Quanta Computer Inc.
Inventor： Keng-Sheng Lin , Chih-Chi Cheng , Chung-Te Li , Hsin-Yu Chen , Wen-Chu Yang
CPC classification number: H04N5/2353 , H04N5/2355 , H04N5/2356 , H04N5/355 , H04N5/35536
Abstract: A method for controlling an exposure duration of a high dynamic range image, including: consecutively generating a first high dynamic range image having a first exposure duration ratio and a second high dynamic range image having a second exposure duration ratio greater than the first exposure duration ratio; performing image quality evaluations on both the first high dynamic range image and the second high dynamic range image to obtain a first image quality and a second image quality, respectively; and determining whether the second image quality is better than the first image quality; if yes, generating a third high dynamic range image having a third exposure duration ratio greater than the second exposure duration ratio; if not, generating the third high dynamic range image having the first exposure duration ratio and setting the first exposure duration ration as the optimal exposure duration ratio.
Abstract translation: 一种用于控制高动态范围图像的曝光持续时间的方法，包括：连续生成具有第一曝光持续时间比的第一高动态范围图像和具有大于第一曝光持续时间比的第二曝光持续时间比的第二高动态范围图像 ; 在第一高动态范围图像和第二高动态范围图像两者上分别执行图像质量评估以分别获得第一图像质量和第二图像质量; 以及确定所述第二图像质量是否优于所述第一图像质量; 如果是，则生成具有大于第二曝光持续时间比的第三曝光持续时间比的第三高动态范围图像; 如果不是，则生成具有第一曝光持续时间比率的第三高动态范围图像，并将第一曝光持续时间定值设定为最佳曝光持续时间比。
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公开(公告)号：US09516290B2
公开(公告)日：2016-12-06
申请号：US14547395
申请日：2014-11-19
Applicant: Quanta Computer Inc.
Inventor： Keng-Sheng Lin , Chung-Te Li , Cheng-Ya Sha
CPC classification number: H04N9/735 , H04N5/23229 , H04N5/2351 , H04N5/2355 , H04N5/35554
Abstract: A white-balance method for use in a multi-exposure imaging system having an image capturing unit is provided. The method includes the steps of: utilizing the image capturing unit to simultaneously capture a first image and a second image of a scene with a first exposure value and a second exposure value, respectively, wherein the second exposure value is smaller than the first exposure value, and the first exposure value and the second exposure value have individual exposure time and exposure gain; performing light source detection on the second image to obtain light source information and a corresponding light source color ratio of the scene; and performing a color gain process on the first image according to the light source color ratio to generate an output image.
Abstract translation: 提供了一种用于具有图像捕获单元的多曝光成像系统中的白平衡方法。 该方法包括以下步骤：利用图像捕获单元分别同时捕获具有第一曝光值和第二曝光值的场景的第一图像和第二图像，其中第二曝光值小于第一曝光值 并且第一曝光值和第二曝光值具有各自的曝光时间和曝光增益; 对所述第二图像执行光源检测以获得所述场景的光源信息和对应的光源颜色比; 以及根据所述光源颜色比对所述第一图像执行色彩增益处理，以生成输出图像。
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公开(公告)号：US20160105656A1
公开(公告)日：2016-04-14
申请号：US14547395
申请日：2014-11-19
Applicant: Quanta Computer Inc.
Inventor： Keng-Sheng Lin , Chung-Te Li , Cheng-Ya Sha
CPC classification number: H04N9/735 , H04N5/23229 , H04N5/2351 , H04N5/2355 , H04N5/35554
Abstract: A white-balance method for use in a multi-exposure imaging system having an image capturing unit is provided. The method includes the steps of: utilizing the image capturing unit to simultaneously capture a first image and a second image of a scene with a first exposure value and a second exposure value, respectively, wherein the second exposure value is smaller than the first exposure value, and the first exposure value and the second exposure value have individual exposure time and exposure gain; performing light source detection on the second image to obtain light source information and a corresponding light source color ratio of the scene; and performing a color gain process on the first image according to the light source color ratio to generate an output image.
Abstract translation: 提供了一种用于具有图像捕获单元的多曝光成像系统中的白平衡方法。 该方法包括以下步骤：利用图像拍摄单元分别同时捕获具有第一曝光值和第二曝光值的场景的第一图像和第二图像，其中第二曝光值小于第一曝光值 并且第一曝光值和第二曝光值具有各自的曝光时间和曝光增益; 对所述第二图像执行光源检测以获得所述场景的光源信息和对应的光源颜色比; 以及根据所述光源颜色比对所述第一图像执行色彩增益处理，以生成输出图像。
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Patent Agency Ranking
公开(公告)号：US20160093066A1
公开(公告)日：2016-03-31
申请号：US14547380
申请日：2014-11-19
Applicant: Quanta Computer Inc.
Inventor： Keng-Sheng Lin , Chung-Te Li
CPC classification number: G06T7/44 , G06T11/001 , H04N9/67 , H04N9/68
Abstract: A saturation compensation method is provided. The method includes the steps of: retrieving an input image; performing at least one first image process on the input image to generate a first image; calculating saturation corresponding to each pixel in the input image; and performing a saturation compensation process on the first image according to the input image and the saturation to generate an output image.
Abstract translation: 提供饱和补偿方法。 该方法包括以下步骤：检索输入图像; 对所述输入图像执行至少一个第一图像处理以生成第一图像; 计算对应于输入图像中的每个像素的饱和度; 以及根据输入图像和饱和度对第一图像执行饱和补偿处理以产生输出图像。
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公开(公告)号：US09251410B1
公开(公告)日：2016-02-02
申请号：US14665070
申请日：2015-03-23
Applicant: Quanta Computer Inc.
Inventor： Keng-Sheng Lin , Po-Chi Huang , Yi-Hau Chen
CPC classification number: G06T7/0038 , G06K9/00295 , G06K9/00771 , H04N5/23238
Abstract: A people counting system includes: a top-view, a first and a second side-view image-capturing device, capturing a top-view, a first and a second side-view image respectively; an image stitching module, stitching the top-view, the first and the second side-view image into an ultra wide-angle image; a ROI selecting module, selecting at least one recognition zone and a counting zone; a face recognition module, monitoring the recognition zone to determine a face location corresponding to a face through analyzing the recognition zone; a head recognition module, monitoring the counting zone to determine a head location corresponding to a head through analyzing the counting zone; an object tracking module, the head recognition module, generating a face track and a head track; and a people counting module, counting a first number of face tracks and a second number of head tracks passing through the counting zone and generating a counting result.
Abstract translation: 人民计数系统包括：顶视图，第一和第二侧视图像捕获装置，分别捕获顶视图，第一和第二侧视图像; 图像拼接模块，将顶视图，第一和第二侧视图像拼接成超广角图像; ROI选择模块，选择至少一个识别区域和计数区域; 面部识别模块，通过分析识别区域来监视识别区域以确定对应于脸部的脸部位置; 头部识别模块，通过分析计数区域来监视计数区域以确定对应于头部的头部位置; 对象跟踪模块，头部识别模块，产生面部轨迹和头部轨迹; 以及人数计数模块，对通过计数区域的第一数目的脸部轨道和第二数量的头部轨迹进行计数并产生计数结果。
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公开(公告)号：US09665948B2
公开(公告)日：2017-05-30
申请号：US14547380
申请日：2014-11-19
Applicant: Quanta Computer Inc.
Inventor： Keng-Sheng Lin , Chung-Te Li
CPC classification number: G06T7/44 , G06T11/001 , H04N9/67 , H04N9/68
Abstract: A saturation compensation method is provided. The method includes the steps of: retrieving an input image; performing at least one first image process on the input image to generate a first image; calculating saturation corresponding to each pixel in the input image; and performing a saturation compensation process on the first image according to the input image and the saturation to generate an output image.
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公开(公告)号：US09137454B2
公开(公告)日：2015-09-15
申请号：US14076440
申请日：2013-11-11
Applicant: Quanta Computer Inc.
Inventor： Wen-Chu Yang , Keng-Sheng Lin
IPC: H04N5/235
CPC classification number: H04N5/2355 , G06T5/009 , G06T5/50 , G06T2207/10016 , G06T2207/10144 , G06T2207/20208 , G06T2207/20221 , G06T2207/30196
Abstract: The present invention discloses a method of filming a high dynamic range video. The method includes: using an image sensor to capture an original frame which is interlaced by a plurality of long exposure areas and a plurality of short exposure areas; forming a long exposure field via a plurality of long exposure areas and forming a short exposure field via a plurality of short exposure areas; forming a reconstructed long exposure field and a reconstructed short exposure field having the same resolution as the original frame via a reconstruction process by a pixel value of each pixel in the long exposure field and the short exposure field; and forming a high dynamic range image based on the pixel value of each pixel of the reconstructed long exposure field and the reconstructed short exposure field via a merging process.
Abstract translation: 本发明公开了一种拍摄高动态范围视频的方法。 该方法包括：使用图像传感器捕获由多个长曝光区域和多个短曝光区域隔行扫描的原始帧; 经由多个长曝光区域形成长曝光场，经由多个短曝光区域形成短曝光场; 经由重构处理，通过长曝光场和短曝光场中的每个像素的像素值，形成具有与原始帧相同的分辨率的重建的长曝光场和重构的短曝光场; 并且通过合并处理基于重建的长曝光场和重构的短曝光场的每个像素的像素值形成高动态范围图像。
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公开(公告)号：US09131160B2
公开(公告)日：2015-09-08
申请号：US14073067
申请日：2013-11-06
Applicant: Quanta Computer Inc.
Inventor： Keng-Sheng Lin , Chih-Chi Cheng , Chung-Te Li , Hsin-Yu Chen , Wen-Chu Yang
CPC classification number: H04N5/2353 , H04N5/2355 , H04N5/2356 , H04N5/355 , H04N5/35536
Abstract: A method for controlling an exposure duration of a high dynamic range image, including: consecutively generating a first high dynamic range image having a first exposure duration ratio and a second high dynamic range image having a second exposure duration ratio greater than the first exposure duration ratio; performing image quality evaluations on both the first high dynamic range image and the second high dynamic range image to obtain a first image quality and a second image quality, respectively; and determining whether the second image quality is better than the first image quality; if yes, generating a third high dynamic range image having a third exposure duration ratio greater than the second exposure duration ratio; if not, generating the third high dynamic range image having the first exposure duration ratio and setting the first exposure duration ration as the optimal exposure duration ratio.
Abstract translation: 一种用于控制高动态范围图像的曝光持续时间的方法，包括：连续生成具有第一曝光持续时间比的第一高动态范围图像和具有大于第一曝光持续时间比的第二曝光持续时间比的第二高动态范围图像 ; 在第一高动态范围图像和第二高动态范围图像两者上分别执行图像质量评估以分别获得第一图像质量和第二图像质量; 以及确定所述第二图像质量是否优于所述第一图像质量; 如果是，则生成具有大于第二曝光持续时间比的第三曝光持续时间比的第三高动态范围图像; 如果不是，则生成具有第一曝光持续时间比率的第三高动态范围图像，并将第一曝光持续时间定值设定为最佳曝光持续时间比。
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