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1. 发明申请

US20110188772A1 IMAGE SCALING METHOD AND APPARATUS WITH ENHANCEMENT OF IMAGE QUALITY 有权
标题翻译：图像缩放方法与图像质量的提高
公开(公告)号：US20110188772A1
公开(公告)日：2011-08-04
申请号：US13018961
申请日：2011-02-01
申请人： Jong-hyun PARK , Jae-hun LEE , Moon-gi KANG , Ji-yong KWON , Du-sic YOO , Joon-young CHANG
发明人： Jong-hyun PARK , Jae-hun LEE , Moon-gi KANG , Ji-yong KWON , Du-sic YOO , Joon-young CHANG
IPC分类号： G06K9/40
CPC分类号： G06K9/40
摘要： An image scaling apparatus and method, with enhancement of image quality. The method includes generating a plurality of intermediate pixels positioned near a plurality of resultant pixels to be generated to scale an input image using pixels of the input image; determining the image characteristics of the plurality of resultant pixels using a predetermined region of the input image or the plurality of intermediate pixels within the predetermined region; determining a filter for generating the plurality of resultant pixels based on the image characteristics with respect to the resultant pixels, and generating the plurality of resultant pixels through filtering of the plurality of intermediate pixels using the determined filter. The apparatus includes an intermediate pixel generation unit which generates a plurality of intermediate pixels. A filter determination unit determines a filter for generating the plurality of resultant pixels. A resultant pixel generation unit generates the plurality of resultant pixels.
摘要翻译：一种具有增强图像质量的图像缩放装置和方法。该方法包括：生成多个中间像素，该多个中间像素位于要生成的多个合成像素附近，以使用输入图像的像素缩放输入图像; 使用所述输入图像的预定区域或所述预定区域内的所述多个中间像素来确定所述多个结果像素的图像特性; 基于相对于所得到的像素的图像特性，确定用于生成多个合成像素的滤波器，以及通过使用所确定的滤波器对所述多个中间像素进行滤波来生成所述多个合成像素。该装置包括生成多个中间像素的中间像素生成单元。滤波器确定单元确定用于生成多个合成像素的滤波器。合成像素生成单元生成多个合成像素。

2. 发明申请

US20110102681A1 IMAGE CONVERTING METHOD AND APPARATUS THEREFOR BASED ON MOTION VECTOR-SHARING 审中-公开
标题翻译：基于运动矢量共享的图像转换方法及其设备
公开(公告)号：US20110102681A1
公开(公告)日：2011-05-05
申请号：US12911546
申请日：2010-10-25
申请人： Jae-hun LEE , Tae-gyoung AHN , Jong-hyun PARK
发明人： Jae-hun LEE , Tae-gyoung AHN , Jong-hyun PARK
IPC分类号： H04N5/14
CPC分类号： H04N7/0122 , H04N7/013 , H04N7/014
摘要： An image converting method and apparatus therefor for performing resolution conversion or performing frame rate conversion, by sharing at least one motion vector for a current frame, are provided. The image converting method includes estimating at least one motion vector for a current frame of an image sequence; and performing at least one of conversion of resolution of the current frame based on the at least one motion vector and conversion of a frame rate of the image sequence based on the at least one estimated motion vector.
摘要翻译：提供了一种用于通过共享用于当前帧的至少一个运动矢量来执行分辨率转换或执行帧速率转换的图像转换方法及其装置。图像转换方法包括估计图像序列的当前帧的至少一个运动矢量; 以及基于所述至少一个运动矢量和基于所述至少一个估计的运动矢量转换所述图像序列的帧速率来执行所述当前帧的分辨率的转换中的至少一个。

3. 发明申请

US20110142368A1 METHOD AND APPARATUS FOR BLOCK-BASED IMAGE DENOISING 有权
标题翻译：用于基于块的图像识别的方法和装置
公开(公告)号：US20110142368A1
公开(公告)日：2011-06-16
申请号：US12913909
申请日：2010-10-28
申请人： Gun-shik SHIN , Dong-hyun KIM , Jae-hun LEE , Sang-yun KIM
发明人： Gun-shik SHIN , Dong-hyun KIM , Jae-hun LEE , Sang-yun KIM
IPC分类号： G06K9/40
CPC分类号： G06T5/002 , G06T2207/20021
摘要： A block-based image denoising method includes determining similarities between a current block and reference blocks within a search range around the current block, from among certain-sized blocks divided from an input image; determining weights of the reference blocks with respect to the current block based on the similarities; and generating resultant blocks by denoising the current block with respect to every block of the input image based on the weights of the reference blocks.
摘要翻译：基于块的图像去噪方法包括：从当前块与当前块周围的搜索范围内的参考块之间确定与从输入图像分开的特定大小的块中的相似度; 基于相似度确定参考块相对于当前块的权重; 并且基于所述参考块的权重，通过对所述输入图像的每个块去除当前块来生成合成块。

4. 发明申请

US20080192830A1 METHOD OF ENCODING AND DECODING MOTION PICTURE FRAMES 有权
标题翻译：编码和解码运动图像框架的方法
公开(公告)号：US20080192830A1
公开(公告)日：2008-08-14
申请号：US11961300
申请日：2007-12-20
申请人： Tae-gyoung AHN , Jae-hun LEE , Ki-won YOO
发明人： Tae-gyoung AHN , Jae-hun LEE , Ki-won YOO
IPC分类号： H04N7/46
CPC分类号： H04N19/577 , H04N19/107 , H04N19/172 , H04N19/573 , H04N19/58
摘要： Provided is a method for encoding and decoding a motion picture frame, which achieve natural picture conversion of frames near an Instantaneous Decoding Refresh-I (IDR-I) frame. The decoding method includes: decoding a first frame which is a P frame that is to be displayed last among a plurality of P frames that are to be displayed before an IDR-I frame is displayed; decoding the IDR-I frame; decoding a second frame which is a P frame that is to be displayed first among a plurality of P frames that are to be displayed after the IDR-I frame is displayed; and maintaining a reference frame stored in a buffer, for decoding the first frame until the second frame is decoded. Therefore, by allowing frames near an IDR-I frame to access reference frames stored in a buffer, natural picture conversion is possible, and accordingly smooth picture conversion without flickering is possible.
摘要翻译：提供了一种对瞬时解码刷新I（IDR-I）帧附近的帧进行自然图像转换的运动图像帧进行编码和解码的方法。解码方法包括：在显示IDR-I帧之前，对要在显示的多个P帧中最后显示的P帧的第一帧进行解码; 解码IDR-I帧; 解码作为在显示IDR-I帧之后要显示的多个P帧中首先显示的P帧的第二帧; 以及保持存储在缓冲器中的参考帧，用于对第一帧进行解码，直到第二帧被解码。因此，通过允许靠近IDR-I帧的帧访问存储在缓冲器中的参考帧，可以进行自然图像转换，因此可以平滑地进行不闪烁的图像转换。

5. 发明申请

US20100054334A1 METHOD AND APPARATUS FOR DETERMINING A PREDICTION MODE 审中-公开
标题翻译：用于确定预测模式的方法和装置
公开(公告)号：US20100054334A1
公开(公告)日：2010-03-04
申请号：US12431797
申请日：2009-04-29
申请人： Ki-won YOO , Tae-gyoung AHN , Jae-hun LEE
发明人： Ki-won YOO , Tae-gyoung AHN , Jae-hun LEE
IPC分类号： H04N7/12
CPC分类号： H04N19/573 , H04N19/103 , H04N19/132 , H04N19/157 , H04N19/176 , H04N19/61
摘要： A method and apparatus for determining a prediction mode which is used during encoding of a current block is provided. In the method and apparatus, a prediction mode candidate group to be used for the current block is determined based on a prediction mode for a block positioned at the same location on a reference picture as a location of the current block encoded, predictive coding is performed on the current block by using predictive modes included in the prediction mode candidate group. Thus, image prediction efficient is improved, and the time and number of calculations required for prediction mode determination are reduced.
摘要翻译：提供了一种用于确定在当前块的编码期间使用的预测模式的方法和装置。在该方法和装置中，基于对位于参考图像上的相同位置的块的预测模式来确定要用于当前块的预测模式候选组作为当前块编码的位置，执行预测编码通过使用包括在预测模式候选组中的预测模式在当前块上。因此，提高了图像预测效率，并且减少了预测模式确定所需的计算时间和数量。

6. 发明申请

US20080187043A1 METHOD AND APPARATUS FOR ENCODING/DECODING IMAGE USING ADAPTIVE QUANTIZATION STEP 审中-公开
标题翻译：使用自适应量化步骤编码/解码图像的方法和装置
公开(公告)号：US20080187043A1
公开(公告)日：2008-08-07
申请号：US12026201
申请日：2008-02-05
申请人： Tae-gyoung AHN , Sung-kyu CHOI , Jae-hun LEE , Chang-su HAN
发明人： Tae-gyoung AHN , Sung-kyu CHOI , Jae-hun LEE , Chang-su HAN
IPC分类号： H04N7/26
CPC分类号： H04N19/154 , H04N19/124 , H04N19/139 , H04N19/14 , H04N19/176 , H04N19/61
摘要： A method and apparatus for encoding and/or decoding an image are provided. The method of encoding an image includes: generating a prediction block that is an intra or inter prediction value of a current block; calculating a color difference between the current block and the generated prediction block; and, encoding the current block by adjusting a quantization step, based on the calculated color difference. In this way, color distortion in a restored image that can occur when a color of a current block is incorrectly predicted can be prevented.
摘要翻译：提供了用于编码和/或解码图像的方法和装置。编码图像的方法包括：生成作为当前块的帧内或帧间预测值的预测块; 计算当前块和所生成的预测块之间的色差; 并且通过基于所计算的色差来调整量化步长对当前块进行编码。以这种方式，可以防止当当前块的颜色被错误地预测时可能发生的恢复图像中的颜色失真。

7. 发明申请

US20080123747A1 METHOD AND APPARATUS FOR ENCODING AND DECODING VIDEO IMAGES 审中-公开
标题翻译：编码和解码视频图像的方法和装置
公开(公告)号：US20080123747A1
公开(公告)日：2008-05-29
申请号：US11946168
申请日：2007-11-28
申请人： Jae-hun LEE , Tae-gyoung AHN , Ki-won YOO
发明人： Jae-hun LEE , Tae-gyoung AHN , Ki-won YOO
IPC分类号： H04N11/02
CPC分类号： H04N19/543 , H04N19/20 , H04N19/23
摘要： A method of and apparatus for encoding and/or decoding an image are provided, in which motion estimation and compensation are performed by using a reference background image and a reference object image extracted from an input image frame. In the method and apparatus, a background image of each of input image frames is used, and a background area which any one image frame lacks is updated by using a background image of another image frame. In this way, a reference background image is generated and stored, and an object image in each image frame is stored as a reference object image. Then, by using the stored reference background images and reference object images, motion estimation and compensation are performed, thereby increasing encoding efficiency.
摘要翻译：提供了一种用于编码和/或解码图像的方法和装置，其中通过使用从输入图像帧提取的参考背景图像和参考对象图像来执行运动估计和补偿。在该方法和装置中，使用每个输入图像帧的背景图像，并且通过使用另一图像帧的背景图像来更新任何一个图像帧缺少的背景区域。以这种方式，生成并存储参考背景图像，并将每个图像帧中的对象图像存储为参考对象图像。然后，通过使用存储的参考背景图像和参考对象图像，执行运动估计和补偿，从而提高编码效率。

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