Sony Corporation

Katsuharu Shimura

Takahiro Fukuhara

Hiroo Takahashi

Kazuhisa Hosaka

Katsutoshi Ando

Naoto Nishimura

Yuuki Tanaka

Takunari Inagaki

Tsuguna Inagaki

An information processing device includes: an accumulating unit for accumulating encoded data obtained by encoding image data; a reading unit for reading out the encoded data in data increments; a determining unit for determining whether or not a parameter indicating the accumulated state of the encoded data at the accumulating unit satisfies a predetermined accumulation condition; a forbidding unit for forbidding readout of encoded data to be read out following encoded data being read out by the reading unit in data increments, which serves as a reference, in the case of the determining unit determining that the parameter satisfies the accumulation condition; and a control unit for controlling the reading unit to omit readout of encoded data of which readout is forbidden by the forbidding unit in data increments, and performing readout of encoded data of which readout is not prohibited by the forbidding unit in data increments.

Information processing device and method, and information processing system

An image processing apparatus includes an input unit that inputs image data; and an analysis filtering unit that generates coefficient data of a plurality of subbands by performing analysis filtering of the image data input by the input unit for each predetermined number of lines from an upper-end line to a lower-end line such that analysis filtering of a lower-end line of the current picture is completed before analysis filtering of an upper-end line of the next picture starts.

Image processing apparatus and image processing method

An image compression controller capable of simplifying the quantization coefficient control in an image compression process and attaining a high speed In image compression, including a first quantization circuit for first quantization based on a quantization coefficient on an output signal from a DCT circuit, a second quantization circuit for second quantization based on a second quantization coefficient, counters for counting the number of &ldquo;0's&rdquo; in the first quantization data, a quantization coefficient control circuit for generating a plurality of reference control coefficients and generating control coefficients based on counts of the counters and a &ldquo;0&rdquo; reference value, a first multiplier for generating a first quantization coefficient based on a reference quantization coefficient and a reference control coefficient, a second multiplier for generating a second quantization coefficient based on a control coefficient and a reference quantization coefficient, and an entropy coding circuit for entropy coding on the second quantization data.

Image compression controller and image pickup system using the same

Growing community of inventors

Kanagawa, Japan

Katsuharu Shimura