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1. 发明申请

US20120314975A1 METHOD AND APPARATUS FOR CONVERTING RESOLUTION OF BLOCK BASED IMAGE 有权
标题翻译：用于转换基于块的图像分辨率的方法和装置
公开(公告)号：US20120314975A1
公开(公告)日：2012-12-13
申请号：US13491114
申请日：2012-06-07
申请人： Gun-shik SHIN , Se-hyeok PARK , Jong-hyun PARK , Chang-su HAN
发明人： Gun-shik SHIN , Se-hyeok PARK , Jong-hyun PARK , Chang-su HAN
IPC分类号： G06K9/36
CPC分类号： H04N7/0117 , H04N7/0125 , H04N7/014
摘要： A method and apparatus for converting a resolution of a block-based image. The method includes: dividing a low resolution image frame into a plurality of blocks, each block having a predetermined size; performing motion prediction in a sub-pixel unit of each of the divided blocks and determining a motion vector in the sub-pixel unit; dividing the motion vector of the sub-pixel unit into a first motion vector having an integer pixel unit and a second motion vector having the sub-pixel unit; determining at least one low resolution reference block corresponding to each of the divided blocks by using the first motion vector having the integer pixel unit; converting each of the divided blocks into high resolution block by using the second motion vector having the sub-pixel unit and the one low resolution reference block; and generating a high resolution image frame by using each of the converted high resolution blocks.
摘要翻译：一种用于转换基于块的图像的分辨率的方法和装置。该方法包括：将低分辨率图像帧划分成多个块，每个块具有预定尺寸; 在每个分割块的子像素单元中执行运动预测，并确定子像素单元中的运动矢量; 将子像素单元的运动矢量划分为具有整数像素单位的第一运动矢量和具有子像素单位的第二运动矢量; 通过使用具有整数像素单位的第一运动矢量来确定与每个分割块相对应的至少一个低分辨率参考块; 通过使用具有子像素单元和一个低分辨率参考块的第二运动矢量将每个分割块转换成高分辨率块; 以及通过使用每个转换的高分辨率块来生成高分辨率图像帧。

2. 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。

3. 发明申请

US20110309958A1 METHOD AND APPARATUS FOR ENCODING AND DECODING DATA 有权
标题翻译：编码和解码数据的方法和装置
公开(公告)号：US20110309958A1
公开(公告)日：2011-12-22
申请号：US13100494
申请日：2011-05-04
申请人： Ki-won YOO , Chang-su HAN , Yong-hoon YU
发明人： Ki-won YOO , Chang-su HAN , Yong-hoon YU
IPC分类号： H03M7/00 , H03M13/00
CPC分类号： H03M7/3082
摘要： Methods and apparatuses for encoding and decoding data. The method for encoding data includes: receiving data; determining one quantizer from among a plurality of quantizers having a same quantization step size and different offset values; and transmitting an indicator and a quantized coefficient related to the determined quantizer. The method for decoding data includes: receiving an indicator and a quantized coefficient related to a quantizer; determining one de-quantizer from among a plurality of de-quantizers by using the indicator; and acquiring reconstructed data by de-quantizing the quantized coefficient by using the determined de-quantizer.
摘要翻译：用于对数据进行编码和解码的方法和装置。数据编码方法包括：接收数据; 从具有相同量化步长和不同偏移值的多个量化器中确定一个量化器; 以及发送与所确定的量化器相关的指示符和量化系数。解码数据的方法包括：接收与量化器相关的指标和量化系数; 通过使用所述指示器从多个解量化器中确定一个解量化器; 以及通过使用所确定的去量化器对量化的系数进行解量化来获取重构数据。

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