公开(公告)号：US07751483B1

公开(公告)日：2010-07-06

申请号：US11103898

申请日：2005-04-12

申请人： Alexandre Ganea

发明人： Alexandre Ganea

IPC分类号： H04N7/12 ,  G06K9/00

CPC分类号： H03M7/40 ,  H03M7/3082 ,  H03M7/3086 ,  H04N19/42 ,  H04N19/87 ,  H04N19/93

摘要： A video codec that allows for improved performance of embedded devices using vector quantization and the high correlation between frames in a scene to reduce the overhead associated with displaying video data. Video coding includes determining scene changes in a movie, producing one codebook for each scene, and coding each frame within a scene with the same codebook. The quantized video data is then losslessly compressed and formed into a video stream. Video decoding includes decoding the codebook for a frame and supplying the codebook and frame indices for frame rendering. Alternatively, video coding also includes dividing CPU time between codebook processing, indices processing, and frame rendering to ensure smooth video output.

摘要翻译： 一种视频编解码器，其允许使用矢量量化改进嵌入式设备的性能以及场景中的帧之间的高相关性，以减少与显示视频数据相关联的开销。 视频编码包括确定电影中的场景变化，为每个场景产生一个码本，并用同一码本对场景内的每一帧进行编码。 然后，量化的视频数据被无损压缩并形成为视频流。 视频解码包括对帧的码本进行解码并提供用于帧渲染的码本和帧索引。 或者，视频编码还包括在码本处理，索引处理和帧渲染之间划分CPU时间，以确保平滑的视频输出。

公开(公告)号：US07253819B1

公开(公告)日：2007-08-07

申请号：US11104200

申请日：2005-04-12

申请人： Alexandre Ganea

发明人： Alexandre Ganea

IPC分类号： G09G5/02 ,  G06K9/00 ,  G03F3/08 ,  G06K15/00 ,  H04N1/48

CPC分类号： G09G5/02 ,  G09G2340/06 ,  H04N9/646 ,  H04N9/67 ,  H04N9/68

摘要： Displays on embedded devices, such as cell phones, personal digital assistants, and game machines, typically have low color-depth resolution displays. The conversion of color image from high color-depth resolution formats, such as 24-bit per pixel color, to lower color-depth resolution formats for display on low color-depth resolution displays, such as those having 15-bit per pixel color, results in degraded image appearance, especially for 24-bit format images having gradual color changes. The present invention manipulates the color information of images or video sequences and improves the appearance of the display by dithering representations of the images in a color space having a luminance coordinate.

摘要翻译： 嵌入式设备（如手机，个人数字助理和游戏机）上的显示通常具有较低的色彩深度分辨率显示。 将彩色图像从诸如24位/像素颜色的高色彩深度分辨率格式转换为用于在低色彩分辨率显示器上显示的较低色彩深度分辨率格式，例如具有每像素15位色彩的显示器， 导致图像外观退化，特别是对于逐渐变色的24位格式图像。 本发明处理图像或视频序列的颜色信息，并通过在具有亮度坐标的色彩空间中抖动表示图像来改善显示的外观。