Image processing apparatus, communication system, and computer program

• US 9,456,180 B2
• Filed: 12/30/2014
• Issued: 09/27/2016
• Est. Priority Date: 01/08/2014
• Status: Expired due to Fees

• Current Assignee: Ricoh Company Limited
• Original Assignee: Ricoh Company Limited
• Inventors: Kuwata, Kohji
• Primary Examiner(s): Nguyen, Khai N
• Application Number:
  US14/585,330
• Publication Number:
  US 20150193914A1
• Time in Patent Office: 637 Days
• Field of Search: 348/14.01, 348/14.02, 348/14.03, 348/14.04, 348/14.05, 348/14.06, 348/14.07, 348/14.08, 348/14.09, 348/14.1, 348/14.11, 348/14.12, 348/14.13, 348/14.14, 348/15.15, 348/14.16, 379/265.03, 455/414.1, 455/566, 704/270, 382/275
• US Class Current: 1/1
• CPC Class Codes: G06F 16/51 Indexing; Data structures therefor; Storage structures
• CPC Class Codes: H04N 7/147 Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals selecting H04Q
• CPC Class Codes: H04N 7/15 Conference systems

Abstract

An image processing apparatus includes: a writing controlling unit that writes image information of an input image to a memory; a detecting unit that detects one of a plurality of blocks into which the input image is divided, the one being a block for which writing of corresponding image information to the memory is completed; and a correcting unit that performs a process of correcting a distortion occurring in the input image, for each block in order in which the blocks are detected by the detecting unit.

Claims

1. An image processing apparatus comprising:

processing circuitry configured to

write image information of an input image to a memory;

detect one of a plurality of blocks into which the input image is divided, the one block being a block for which writing of corresponding image information to the memory is completed; and

perform a process of correcting a distortion occurring in the input image, for each block in order in which the blocks are detected by the processing circuitry,

wherein the input image is divided into separate horizontal lines, and the plurality of blocks divide the input image within each horizontal line, and

the processing circuitry writes the image information of the input image sequentially to the memory on a block by block basis of a horizontal line, and the processing circuitry begins the process of correcting the distortion in the input image for a first block within the horizontal line before all of the blocks of the horizontal line are written to the memory.

2. The image processing apparatus according to claim 1, further comprising a metadata memory storing therein metadata indicating order of the blocks in which writing to the memory is completed depending on the distortion occurring in the input image, wherein

the processing circuitry detects if the writing of the image information to the memory is completed in the order of the blocks indicated by the metadata.

3. A communication system comprising:

a plurality of terminal devices, each of the terminal devices including;

processing circuitry configured to

write image information of an input image to a memory;

detect one of a plurality of blocks into which the input image is divided, the one block being a block for which writing of corresponding image information to the memory is completed;

perform a process of correcting a distortion occurring in the input image, for each block in order in which the blocks are detected by the processing circuitry; and

transmit the image information subjected to the process of correcting over a certain network, wherein

the terminal devices exchange the image information over the network,

wherein the input image is divided into separate horizontal lines, and the plurality of blocks divide the input image within each horizontal line, and

the processing circuitry writes the image information of the input image sequentially to the memory on a block by block basis of a horizontal line, and the processing circuitry begins the process of correcting the distortion in the input image for a first block within the horizontal line before all of the blocks of the horizontal line are written to the memory.

4. The communication system according to claim 3, wherein each of the terminal devices further includes a metadata memory storing therein metadata indicating order of the blocks in which writing to the memory is completed depending on the distortion occurring in the input image, and

the processing circuitry detects whether the writing of the image information to the memory is completed in the order of the blocks indicated by the metadata.

5. A non-transitory computer-readable medium containing an information processing program, the program causing an image processing apparatus to perform a method comprising:

writing image information of an input image to a memory;

detecting one of a plurality of blocks into which the input image is divided, the one block being a block for which writing of corresponding image information to the memory is completed; and

performing a process of correcting a distortion occurring in the input image, for each block in order in which the blocks are detected,

wherein the input image is divided into separate horizontal lines, and the plurality of blocks divide the input image within each horizontal line, and

the method includes writing the image information of the input image sequentially to the memory on a block by block basis of a horizontal line, and beginning the process of correcting the distortion in the input image for a first block within the horizontal line before all of the blocks of the horizontal line are written to the memory.

6. The computer program product according to claim 5, wherein the method further including whether the writing of the image information to the memory is completed in order of the blocks indicated by metadata indicating order of the blocks in which writing to the memory is completed depending on the distortion occurring in the input image.