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Image processing system

An image processing and image technology, applied in image communication, parts of TV systems, TV, etc., can solve the problems of inability to display, the joints of connecting images do not match, and there is no discussion of optimizing the quality of image information in conference rooms, etc. To achieve the effect of clear shooting

Inactive Publication Date: 2015-03-25
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Patent Document 1 (JP Patent No. 4325642) discloses the following problems when a plurality of on-vehicle camera devices are mounted in a vehicle: (1) the difference in the image caused by the difference in the camera installation position or the difference in the subject to be photographed; Changes in brightness and color balance, (2) Due to the above problem (1), if the exposure time or gain of each image is controlled to the same degree, although differences in brightness or color balance between images will be absorbed, they will not Shows some parts that are displayed when the images are individually controlled, (3) Due to the above problem (1), when compositing images, the difference in brightness and color balance becomes noticeable at the seam parts connecting the images
[0007] However, although the camera system disclosed in Patent Document 1 aims at synthesizing images through the control unit to improve the quality of the synthesized image, this Patent Document only relates to a mobile camera system (vehicle camera system), and does not discuss the optimization of conference rooms. The quality of image information required by users in
[0008] When combining images captured by multiple cameras into one image, if you use the same setting parameters for each camera, although the images can be connected well, it may not be the best setting for each camera.
However, if the parameters are set separately for each camera, although each camera can obtain its own best image, the seam part of the connected image may not match, so there is a problem of how to switch between these controls

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no. 1 approach

[0022] figure 1 is a structural block diagram of the image processing system according to the first embodiment. Image processing system 1 has first input unit 2 and second input unit 3 , first image processing unit 4 and second image processing unit 5 , synthesis unit 6 , detection unit 7 , parameter determination unit 8 , and control unit 9 .

[0023] The first input unit 2 and the second input unit 3 include optical systems such as lenses and optical filters, sensors, etc., and input the image formed by the lens into the sensor, convert it into digital data, and then input it to the subsequent first image processing unit 4 and The second image processing unit 5 . This image processing system uses a wide-angle lens as a lens to capture a wide-area image with only one input device. Parameters for sensor settings (gain, exposure time, etc.) and lens control settings (aperture size, focus, etc.) are determined by the parameter determination unit 8 .

[0024] Image data is inp...

no. 2 approach

[0051] Figure 6 It is a structural block diagram of an image processing system that uses the information acquisition unit 11 to determine an important subject. Compared with the first embodiment, an information acquisition unit 11 is added in this embodiment. Hereinafter, modules having the same structure as those of the first embodiment are assigned the same symbols and descriptions thereof are omitted.

[0052] In the first embodiment, the detection unit 7 is used to judge whether or not there is an important subject for the user on the joint portion of the synthesized image synthesized by the synthesis unit 6 . In this regard, in this embodiment, in addition to the image, the detection unit 7 judges whether there is an important seam on the joint portion of the synthesized image synthesized by the synthesis unit 6 based on the surrounding information of the image processing system acquired by the information acquisition unit 11. of the subject. Then, the parameter deter...

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Abstract

The present invention relates to an image processing system. An object of the invention is to provide a video image needed by a user by switching between two modes in which image processing is carried out with one parameter and image processing is carried out with different parameters separately. The image processing system comprises first and second input units (2, 3) for input of images, first and second image processing units (4, 5) for image processing, a synthesizing unit (6) for synthesizing the images, a detection unit (7) for detecting the presence of an important object at the joint of the synthesized images, a control unit (9) for determining whether the same parameters are used according to image characteristics, and a parameter determining unit (8) for determining parameters to be set for the input units and the image processing units. When the image characteristics of the images are not same, the control unit (9) further determines whether the same parameters are set according to a detection result of the detection unit (7).

Description

technical field [0001] The present invention relates to an image processing system that synthesizes a plurality of images into one image. Background technique [0002] In recent years, video conferencing systems have become frequently used equipment for long-distance conferences. The system not only shares sound information, but also shares video information. Regarding the provision of video, we are currently considering the use of multiple cameras to provide an all-round video image like a panoramic photo, instead of a food image of only a part of the surrounding wall captured by a single camera device. [0003] The conferencing system focuses on clearly displaying a certain part of the user's attention (such as the whiteboard or the expressions of the people attending the meeting), and the entire screen does not need to be clearly displayed everywhere. [0004] Currently commonly used techniques for improving image quality include using the automatic exposure function to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232
Inventor 吉冈太一
Owner RICOH KK