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公开(公告)号：KR100662577B1
公开(公告)日：2006-12-28
申请号：KR1020050117168
申请日：2005-12-02
Applicant: 삼성전자주식회사
Abstract: A motion estimation apparatus and a motion estimation method are provided to estimate accurate motion by a small hardware size. A histogram generating unit(10) analyzes a frequency number according to a luminance level of an image signal corresponding to a current frame, and generates a histogram. When the generated histogram exceeds a certain frequency number, a histogram correcting unit(15) equally distributes the exceeded total frequency number, and corrects the histogram. A correction curve generating unit(20) normalizes the histogram, and generates a correction curve. A revaluating unit(30) applies a luminance level of an inputted image signal to the correction curve, converts the converted luminance level, and revaluates the converted luminance level by a certain upper bit. A motion vector calculating unit(40) calculates a motion vector from the revaluated luminance level.
Abstract translation: 运动估计装置和运动估计方法被提供用于以小硬件尺寸估计精确运动。 直方图生成单元（10）根据与当前帧对应的图像信号的亮度级分析频率数，并生成直方图。 当所生成的直方图超过特定频率数时，直方图校正单元（15）均等地分配超出的总频率数，并校正直方图。 校正曲线生成单元（20）对直方图进行归一化，并生成校正曲线。 重估单元（30）将输入图像信号的亮度等级应用于校正曲线，转换所转换的亮度等级，并且将转换后的亮度等级重新评估一定的高位。 运动矢量计算单元（40）根据重新评估的亮度水平计算运动矢量。
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Patent Agency Ranking
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公开(公告)号：KR1020070056627A
公开(公告)日：2007-06-04
申请号：KR1020050115546
申请日：2005-11-30
Applicant: 삼성전자주식회사
IPC: H04N19/527
CPC classification number: H04N7/014 , G06T7/223 , H04N19/527
Abstract: A motion estimation apparatus, a motion estimation method and a global motion estimation apparatus are provided to avoid complex calculation processes and obtain a correct global vector by obtaining coefficient values from motion vectors of all blocks. A candidate vector calculating part(10) calculates a plurality of candidate vectors for each block of a frame to be interpolated, based on a previous frame and a current frame. A final motion deciding part(20) selects one of the candidate vectors and outputs the selected candidate vector as a final motion vector of each block. A global vector modeling part(30) performs regression based on the final motion vector in order to model a global vector calculation formula and provides the global vector calculation formula to the candidate vector calculating part. The candidate vector calculating part calculates a global vector for each block of a next frame to be interpolated in accordance with the global vector calculation formula, and provides the global vector as one of the candidate vectors to the candidate vector calculating part.
Abstract translation: 提供运动估计装置，运动估计方法和全局运动估计装置，以通过从所有块的运动矢量获得系数值来避免复杂的计算过程并获得正确的全局矢量。 候选向量计算部（10）基于前一帧和当前帧计算要插值的帧的每个块的多个候选向量。 最终动作决定部（20）选择候选矢量之一，并输出所选择的候选矢量作为每个块的最终运动矢量。 全局矢量建模部分（30）基于最终运动矢量执行回归，以便对全局矢量计算公式进行建模，并向候选矢量计算部分提供全局矢量计算公式。 候选矢量计算部分根据全局矢量计算公式计算要插值的下一帧的每个块的全局矢量，并将全局矢量提供给候选矢量计算部分之一作为候选矢量之一。
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