公开(公告)号：US09525873B2

公开(公告)日：2016-12-20

申请号：US13866486

申请日：2013-04-19

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Yen-Sung Chen ,  Tsui-Chin Chen ,  Jian-De Jiang

IPC: H04N11/02 ,  H04N19/51 ,  H04N19/533 ,  H04N19/567 ,  H04N19/587

CPC classification number: H04N19/513 ,  H04N19/533 ,  H04N19/567 ,  H04N19/587

Abstract: An image processing circuit and an image processing method are provided. The image processing circuit comprises a full search engine and a frame rate conversion (FRC) engine. The full search engine executes a full search to generate a sum of sum of absolute difference (SAD) distribution according to the reference image and the current image. The FRC engine analyzes a scene characteristic from the current image according to SAD distribution. The FRC engine adjusts at least one of the control parameters according to the scene characteristic. The FRC engine generates an interpolated image according to the reference image, the current image and the control parameters.

Abstract translation: 提供了图像处理电路和图像处理方法。 图像处理电路包括全搜索引擎和帧速率转换（FRC）引擎。 全搜索引擎执行全搜索以根据参考图像和当前图像产生绝对差（SAD）分布之和的和。 FRC引擎根据SAD分布从当前图像分析场景特征。 FRC引擎根据场景特性调整至少一个控制参数。 FRC引擎根据参考图像，当前图像和控制参数生成内插图像。

公开(公告)号：US20180184107A1

公开(公告)日：2018-06-28

申请号：US15674522

申请日：2017-08-11

Applicant: Novatek Microelectronics Corp.

Inventor： Pengyuan Hu ,  Xi Tian ,  Yen-Sung Chen ,  Yuan-Jia Du

IPC: H04N19/513

CPC classification number: H04N19/513 ,  H04N19/172 ,  H04N19/176 ,  H04N19/52 ,  H04N19/56

Abstract: The invention provides an apparatus and a method for motion estimation. The motion estimation apparatus includes a candidate set generation circuit and a motion vector (MV) determination circuit. The candidate set generation circuit selects to add motion vectors of adjacent blocks into a motion vector candidate set of a current block of a current frame. The current block and one of the adjacent blocks belong to the same row (or the same column), and the one of the adjacent blocks is a block of the current frame or a block of a previous frame. The motion vector determination circuit is coupled to the candidate set generation circuit to receive the motion vector candidate set. The motion vector determination circuit determines the motion vector of the current block of the current frame according to the motion vector candidate set.

公开(公告)号：US10448043B2

公开(公告)日：2019-10-15

申请号：US15391864

申请日：2016-12-28

Applicant: NOVATEK Microelectronics Corp.

Inventor： Pengyuan Hu ,  Xi Tian ,  Yen-Sung Chen ,  Yuanjia Du

IPC: H04N19/52 ,  H04N19/513 ,  H04N19/105 ,  H04N19/14 ,  H04N19/56 ,  H04N19/176 ,  H04N19/172

Abstract: A motion estimation method and a motion estimator are provided. The motion estimation method includes the following steps of for each respective block of the current frame, selecting a candidate set associated with the current frame and a previous frame, and determining a motion vector according to the candidate set for the each respective block of the current frame. The candidate set includes at least one spatial candidate block in the current frame and temporal candidate blocks in the previous frame. The step of selecting the candidate set includes: selecting the spatial candidate block directly adjacent to the each respective block from the current frame and selecting the plurality of temporal candidate blocks directly adjacent to a reference block from the previous frame.

公开(公告)号：US20180184106A1

公开(公告)日：2018-06-28

申请号：US15391864

申请日：2016-12-28

Applicant: NOVATEK Microelectronics Corp.

Inventor： PENGYUAN HU ,  XI TIAN ,  Yen-Sung Chen ,  Yuanjia DU

IPC: H04N19/513 ,  H04N19/105 ,  H04N19/14

CPC classification number: H04N19/513 ,  H04N19/105 ,  H04N19/14 ,  H04N19/172 ,  H04N19/176 ,  H04N19/52 ,  H04N19/56

Abstract: A motion estimation method is provided which includes for each respective block of the current frame, selecting a candidate set associated with the current frame and a previous frame, the candidate set comprising at least one spatial candidate block in the current frame and a plurality of temporal candidate blocks in the previous frame, wherein the step of selecting the candidate set comprises: selecting the at least one spatial candidate block directly adjacent to the each respective block from the current frame; and selecting the plurality of temporal candidate blocks directly adjacent to a reference block from the previous frame; and determining a motion vector according to the candidate set for the each respective block of the current frame.