Picture data compressor
专利汇可以提供Picture data compressor专利检索，专利查询，专利分析的服务。并且PURPOSE: To compress the picture data while keeping the high picture quality by comparing the feature value of an AC component contained in a block with the threshold value set previously and defining the frequency of the AC component of the highest frequency as the boundary value in case the feature value of the AC component is larger than the threshold value.
CONSTITUTION: The transformation coefficients F(u, v) are successively stored in a buffer memory, e.g. an FIFO 30 which can store (N×N) pieces of coefficient value from the DC component side and at the same time supplied to a distribution estimating device 40 and a frequency deciding device 80. The limit of AC component that should be coded is decided based on the cut-off frequency C received from the device 80. The device 80 functions to adaptively calculate the highest frequency (cut-off frequency) C that should be treated in a relevant block and also calculates the statistic feature value showing the block characteristics for each block to obtain the number of transformation coefficients to be cut, i.e., the cut-off frequency.
COPYRIGHT: (C)1990,JPO&Japio，下面是Picture data compressor专利的具体信息内容。
| 标题 | 发布/更新时间 | 阅读量 |
|---|---|---|
| 基于振动噪声频谱特征匹配的轨道结构力学性能评价方法 | 2020-05-08 | 335 |
| 保持锐利特征的三维重建方法及系统 | 2020-05-08 | 713 |
| 上行传输方法、计算机可读存储介质和分布式多天线系统 | 2020-05-08 | 115 |
| 基于上下文检测的智能手机隐式身份认证方法 | 2020-05-08 | 144 |
| 一种连续窄脉冲的脉宽测量方法及系统 | 2020-05-08 | 252 |
| 灭火器压力表状态的图像识别方法 | 2020-05-08 | 563 |
| 毫米波/太赫兹网络大规模MIMO无线传输方法 | 2020-05-08 | 904 |
| 一种基于单张图片的三维头发重建方法 | 2020-05-08 | 21 |
| 图像边框位置检测方法、装置、电子设备及存储介质 | 2020-05-08 | 140 |
| 基于提前收敛重复平方的限定域矩阵乘法距离积计算方法 | 2020-05-08 | 539 |
高效检索全球专利专利汇是专利免费检索,专利查询,专利分析-国家发明专利查询检索分析平台，是提供专利分析，专利查询，专利检索等数据服务功能的知识产权数据服务商。
我们的产品包含105个国家的1.26亿组数据，免费查、免费专利分析。
专利汇分析报告产品可以对行业情报数据进行梳理分析，涉及维度包括行业专利基本状况分析、地域分析、技术分析、发明人分析、申请人分析、专利权人分析、失效分析、核心专利分析、法律分析、研发重点分析、企业专利处境分析、技术处境分析、专利寿命分析、企业定位分析、引证分析等超过60个分析角度，系统通过AI智能系统对图表进行解读，只需1分钟，一键生成行业专利分析报告。
