摘要:
An image decoder comprises a code decompression/decoding unit that decodes code data produced through compression and encoding of image data, a power supply state detection unit that detects a current state of a power supply of the image decoder, and a controller that controls the code decompression/decoding unit based on the current state of the power supply so as to reduce power consumption in performing decompression and decoding of the code data.
摘要:
An image sending apparatus is provided, in which the image sending apparatus comprises an analyzing syntax of code sequence data, a generation unit generating another code sequence data from the code sequence data by using the analysis result, a unit to measure the load of the generation unit; a unit to generate a parameter corresponding to the load, wherein the generation unit generates the another code sequence data by using the parameter such that the data amount of the another code sequence data to be sent is adjusted according to the load.
摘要:
In an image processing apparatus, first code data including multiple sets of code data in which image data of multiple static images are compressed and encoded, are synthesized. The first code data are converted into second code data that are compressed and encoded to be a single code data sequence where a motion image aligns the static images in chronological order as consecutive frames. In addition, the second code data may be converted into the first code data.
摘要:
In an image processing apparatus, using distortion amount information showing how much a decoded image is degraded from an original image when data are eliminated from the data sequence is read from a code sequence in which the original image is compressed and encoded, an occurrence of an error in each unit of the code sequence is detected. A distortion amount of the decoded image against the original image is calculated when the code sequence is decoded after the data are eliminated from the code sequence by using the distortion amount information concerning the data in which the error is detected. Then, the decoding of the code sequence is cancelled based on a calculation result.
摘要:
An image decoder comprises a code decompression/decoding unit that decodes code data produced through compression and encoding of image data, a power supply state detection unit that detects a current state of a power supply of the image decoder, and a controller that controls the code decompression/decoding unit based on the current state of the power supply so as to reduce power consumption in performing decompression and decoding of the code data.
摘要:
An image decoder comprises a code decompression/decoding unit that decodes code data produced through compression and encoding of image data, a power supply state detection unit that detects a current state of a power supply of the image decoder, and a controller that controls the code decompression/decoding unit based on the current state of the power supply so as to reduce power consumption in performing decompression and decoding of the code data.
摘要:
An image coding apparatus compressing and encoding image data, includes a frequency converging unit to perform frequency conversion on the image data; a bit-plane encoding unit to perform bit-plane encoding on coefficients obtained from the frequency converting unit; and a code discarding unit to discard codes obtained from the bit-plane encoding unit until a present code amount becomes a predetermined code amount. The code discarding unit includes a first discarding unit to perform the discarding operation on a basis of a first code unit; and a second discarding unit to further perform the discarding operation on a basis of a second code unit that is smaller than the first code unit, if necessary, after the discarding operation on the basis of the first code unit is performed by the first discarding unit.
摘要:
A sound and music playback device includes: an output amplifier; a power supply circuit that supplies electric power to the output amplifier; and an output signal level judging circuit; wherein an output voltage value of the power supply circuit is changed based on a level of a sound and music signal to be outputted.
摘要:
An image processing apparatus divides data related to an image into bit-planes and performs a coding process on data of each of the bit-planes. The image processing apparatus includes a multi-layer generation part that divides codes obtained by the coding process into a plurality of layers sequentially from the codes corresponding to higher bit-planes such that the amount of the codes of each of the layers is equal to or less than a predetermined value. A code generation part generates coded data in units of the codes divided into the layers by the multi-layer generation part.
摘要:
An image processing apparatus and an image processing method are disclosed for generating coded data having a desired data size at a high speed. The image processing apparatus includes a coding part, two memories, a setting part and a data size adjustment part. The coding part partitions a wavelet coefficient of image data into bit-planes and generates coded data of the image data through entropy coding on the wavelet coefficient for each of the bit-planes. The data size adjustment part adjusts a size of the coded data such that the size falls within an acceptable range including the target size set by the setting part by sequentially discarding a portion of the coded data in a least significant order based on the size of the coded data portion corresponding to each of the bit-planes.