专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 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。

2. 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。

3. 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。

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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式