Ricoh Company, Ltd.

Takanori Yano

Hiroyuki Sakuyama

Taku Kodama

Nekka Matsuura

Yasuyuki Shinkai

Toshio Miyazawa

Takayuki Nishimura

Junichi Hara

Yasuyuki Nomizu

Takashi Maki

Ikuko Yamashiro

Takao Inoue

Akira Takahashi

Keiichi Ikebe

Keiichi Suzuki

Tooru Suino

Takeshi Koyama

Shin Aoki

Yukio Kadowaki

Minoru Fukuda

Shogo Oneda

Yutaka Sano

Satoru Tomita

Akihisa Itabashi

Naoya Morohoshi

Katsuhiro Aoki

Toru Matsuda

Katsuichi Ohta

Hisao Shirasawa

Akio Matsubara

Mitsuhisa Kanaya

Minoru Ameyama

Akira Okamoto

Toshiaki Okamoto

An image processing apparatus includes an encoder, a decoder, and a display unit. The encoder performs scalable encoding to encode input image data to obtain code data to be stored in a storage unit. The decoder decodes the code data stored in the storage unit to obtain decoded image data. The display unit displays an image based on the decoded image data, and receives an instruction to output the image. The image is output in response to the instruction. The decoder decodes only subcode data which is part of the code data.

Image processing apparatus

An ROI setting apparatus including an ROI recognition unit and an ROI control unit is provided. In one embodiment, the ROI recognition unit contains multiple ROI recognition modules for recognizing an ROI of image data according to various methods to obtain a recognition result. The ROI control unit selects one ROI recognition module out of the ROI recognition modules and sets ROI information based on the recognition result. The ROI recognition module may be selected according to an instruction from a user input via an operation unit, or a scene type selected by a scene selection switch of an image capture unit. The ROI control unit may perform operations such as selecting, enlarging, or reducing the ROI recognized by the ROI recognition module, or changing the ROI recognition conditions according to the respective instructions from the user input via the operation unit.

Method and apparatus for setting a region of interest in image data

A system includes a server and at least a client. The sever transfers a code data to the client. The client receives the code data from the server and decodes the code data. The client includes a requesting unit configured to request a code data stored in the server, a first receiving unit configured to receive the code data from the server, a decoding unit configured to decode the code data which is received from the server and a display unit configured to display an image data which is generated by the decoding unit. In addition, the server includes a second receiving unit configured to receive the request from a client, a selecting unit configured to select the code data which is requested from the client, a transferring unit configured to transfer the code data which is selected by the selecting unit, wherein the code data is a part of at least code data of JPM file.

System including a server and at least a client

An image processing apparatus is disclosed. The image processing apparatus includes an extraction unit to extract layer levels of each packet included in partial encoded data, an estimation unit to calculate the number of layer levels of each packet based on the extracted layer levels of each packet and estimates a greatest layer level of each packet, a writing unit to write the greatest layer level of each packet in a management table, and a formation unit to form a layer data table in which each layer has the greatest layer level. The writing unit changes the layer levels of each layer written in the management table to the layer levels of each layer included in newly received partial encoded data when the layer levels included in the newly received partial encoded data are larger than the layer levels written in the management table.

Image processing apparatus and image processing method

In an image processing system, in which code data is transmitted between at least one client and a server, the client includes a selecting unit to select a processing function to execute; and a notifying unit to notify the selected processing function to the server. The server includes a selecting unit to select a type of a stream of code data transmitted between the server and the client, based on the notified processing function; and a notifying unit to notify the client of the selected type of stream.

Image processing system, image processing method and computer readable information recording medium

An image processing apparatus is provided with a process unit to carry out a resolution conversion process and an image division process with respect to an input image, and a control unit to control a division number of the image division process depending on a size of an image display region and a resolution after the resolution conversion process. The division number indicates a number of divided image portions into which the input image is divided into by the image division process. The control unit may control the division number of the image division process depending on an image size of the input image in addition to the size of the image display region and the resolution after the resolution conversion process.

Image processing method, image processing apparatus and computer-readable storage medium

An image processing system is disclosed that includes a superimposing merger operation unit. The superimposing merger operation unit receives the encoded data of a main image and the encoded data of a sub image, and generates superimposedly merged encoded data by merging the encoded data of the main and sub images superimposedly. The superimposedly merged encoded data generated by the superimposing merger operation unit is configured so that the main image is stored therein and that when the superimposedly merged encoded data is decoded, each of the main image and sub image is reproduced with the sub image being reproduced superimposedly with respect to the main image.

System and method for generating superimposed image data

An image processing apparatus hierarchically compresses and codes image data by subjecting pixel values of the image data to a discrete wavelet transform, quantization and coding for each of one or a plurality of rectangular regions into which the image data is divided. The image processing apparatus includes a hierarchical coding unit to compress and code the image data in a state where the image data is divided for each hierarchical layer, to obtain compressed codes, and a distributively storing unit to distributively store the compressed codes that are divided for each hierarchical layer by the hierarchical coding unit.

Hierarchically compressing and coding and storing image data

Efficient utilization of a memory medium is enhanced in an image-processing apparatus, in which encoded data of JPEG 2000 or Motion-JPEG 2000 are stored in the memory medium as a file. File size of the encoded data is adjusted close to, but not to exceed an integer multiple of a memory domain management unit (sector size) of the memory medium. Thereby, a memory domain assigned to the image file in its entirety, or almost in its entirety, is used effectively, improving the efficient utilization of the memory medium.

Image-processing apparatus, an image-processing method, a program, and a memory medium

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.

Image coder and image decoder capable of power-saving control in image compression and decompression

An apparatus for coding and decoding includes a decoding unit which decodes compressed and coded data to restore original image data, a storing unit which stores additional information other than the image data in memory, and a coding unit which encodes at least a portion of the additional information stored in said memory as information additional to the image data when performing second-time encoding of the image data decoded by said decoding unit.

Coding and decoding of image data with additional information

An apparatus for generating codes includes a quantization unit which generates quantization coefficients by performing discrete wavelet transform with respect to each of tiles into which an image is divided, a block division unit which divides the quantization coefficients into blocks, a Hash conversion unit which performs Hash conversion based on the quantization coefficients of each of the blocks so as to produce a Hash value for each of the blocks, a digital watermark embedding unit which adjusts a parity of a quantization coefficient of interest equal to a parity of the Hash value of a block to which the quantization coefficient of interest belongs, and a coding unit which generates code sequence data by coding the quantization coefficients including the quantization coefficient whose parity is adjusted.

Digital watermarking which allows tampering to be detected on a block-specific basis

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.

Image processing apparatus and method for converting first code data sets into second code data for JPEG 2000 and motion JPEG 2000

An image processing apparatus comprises a compression coding unit that performs compression coding of image data according to JPEG2000 algorithm. A coding style selection unit selectively activates coding functions of the compression coding unit in response to a discriminating signal, so that the active coding functions of the compression coding unit are suited to characteristics of the image data.

Image processing apparatus, image processing program, and storage medium

An image processing apparatus includes a condition setting unit with which a user sets a post-quantization condition. A partial decoding and decompression unit partially decodes and decompresses coded data according to the post-quantization condition set by the user, thereby reproducing image data the same as that reproduced by decoding and decompressing coded data after post-quantization processing in accordance with the post-quantization condition. An image data displaying unit displays on a display unit the image data reproduced by the partial decoding and decompression unit.

Growing community of inventors

Kanagawa, Japan

Takanori Yano