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    • 4. 发明授权
    • Image compression apparatus and image compression method
    • 图像压缩装置和图像压缩方法
    • US08204319B2
    • 2012-06-19
    • US12428761
    • 2009-04-23
    • Toshiyuki KatsumotoNobuhiro IgiHiromasa WatanabeYukio Yanagihara
    • Toshiyuki KatsumotoNobuhiro IgiHiromasa WatanabeYukio Yanagihara
    • G06K9/46
    • H04N13/106H04N13/10H04N13/161H04N13/204H04N13/239H04N13/243H04N13/271
    • An image compression apparatus includes: first and second imaging sections for capturing an image of a subject to generate first and second image signals, respectively; first and second encoding sections for encoding the first and second image signals to generate first and second image data, respectively; first and second distance measuring sections for measuring a distance to the subject for each of image blocks, at the same time as the first and second imaging sections perform image capturing, to generate first and second distance information, respectively; first and second multiplexing sections for generating first and second multiplexed data on the basis of the first and second image data and the distance, respectively, by respectively multiplexing the first and second image data and first and second distance data, which are generated on the basis of the first and second distance information and indicate the distance to the subject for each of predefined pixel blocks in the first and second image data, respectively; and a compression processing section for reducing amounts of the first and second multiplexed data to generate compressed data. The compression processing section generates the compressed data by extracting long-distance blocks in the first and second image data on the basis of the first and second distance data, respectively, calculating a differential between the long-distance blocks in the first and second multiplexed data, and deleting the long-distance blocks in the first or second multiplexed data which are identical to their counterparts in the other multiplexed data.
    • 一种图像压缩装置包括:第一和第二成像部分,分别用于捕获对象的图像以分别产生第一和第二图像信号; 第一和第二编码部分,用于分别编码第一和第二图像信号以产生第一和第二图像数据; 第一和第二距离测量部分,用于在与第一和第二成像部分进行图像捕获的同时,分别测量与每个图像块对象的距离,分别产生第一和第二距离信息; 第一和第二复用部分,用于分别基于第一和第二图像数据和距离分别复用第一和第二图像数据以及基于第一和第二距离数据生成的第一和第二距离数据,生成第一和第二复用数据 并且分别指示第一和第二图像数据中每个预定义像素块到被摄体的距离; 以及压缩处理部,用于减少第一和第二多路复用数据的量以产生压缩数据。 压缩处理部分分别通过基于第一和第二距离数据提取第一和第二图像数据中的长距离块来生成压缩数据,计算第一和第二多路复用数据中的长距离块之间的差分 并删除第一或第二复用数据中与其他多路复用数据中的对应物相同的长距离块。