公开(公告)号：US20160353122A1

公开(公告)日：2016-12-01

申请号：US15098066

申请日：2016-04-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Pavel KRAJCEVSKI ,  Karthik RAMANI ,  Abhinav GOLAS

IPC: H04N19/44 ,  G06T15/04 ,  H04N19/176 ,  H04N19/124 ,  H04N19/46 ,  H04N19/65 ,  H04N19/186 ,  G06T1/20 ,  H04N19/119

CPC classification number: H04N19/46 ,  H03M7/3084 ,  H04N19/119 ,  H04N19/154 ,  H04N19/162 ,  H04N19/176

Abstract: A fixed rate compressor is used to perform variable rate texture compression. A texture image is accessed. A block size used to compress the image is automatically varied over the image to achieve variable rate texture compression. The block size may be selected to reduce the compressed texture image size and adapted in local regions of the texture image based on quality considerations, such as a quality condition that an error for each block be less that a threshold error. The restriction on block size and block types may be selected to perform decompression with hardware conventionally used to perform decompression of fixed-rate blocks. The quality condition may be user-selectable by a user input to provide additional control over the tradeoffs between quality and compression.

Abstract translation: 固定速率压缩器用于执行可变速率纹理压缩。 纹理图像被访问。 用于压缩图像的块尺寸在图像上自动变化以实现可变速率纹理压缩。 可以选择块大小以减小压缩纹理图像尺寸并且基于质量考虑，例如每个块的误差小于阈值误差的质量条件来适应纹理图像的局部区域。 可以选择对块大小和块类型的限制，以用通常用于执行固定速率块的解压缩的硬件来执行解压缩。 质量条件可以由用户输入用户选择，以提供对质量和压缩之间权衡的附加控制。