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Visual telephone with movement perceptive function and method for enhancing image quality

A technology of video telephony and motion perception, applied in the field of communication, can solve the problems of high frame rate and blurred image, and achieve the effect of enhancing the effect of image communication and realizing adaptive operation.

Inactive Publication Date: 2009-07-01
SHANGHAI SIMCOM LTD
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

The lower the effective data amount of a single frame image is, the image will be relatively blurred, but the frame rate will be higher, so that the continuity of the image decoded by the peer will be improved

Method used

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  • Visual telephone with movement perceptive function and method for enhancing image quality
  • Visual telephone with movement perceptive function and method for enhancing image quality

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Embodiment Construction

[0018] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to describe the technical solution of the present invention in detail.

[0019] Such as figure 1 As shown in , it describes a system architecture of video telephony using the motion-aware image coding method in the present invention. The video phone includes a baseband system 1, a radio frequency system 2, an antenna 3, an image encoder 4, an image decoder 5, an input device 6, a microphone / handset / speaker unit 7, a camera 8, a display device 9 and a new vibration sensor Unit 10. Wherein, the vibration sensing unit 10 is used for sensing the motion state, and when the user has motion, the vibration sensing unit 10 notifies the baseband system 1 through state output. The calculation of the motion state induction and the calculation of the encoding parameters of the image encoder 4 are completed in the baseband system 1 .

[0020] Such as figure 2 The enco...

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Abstract

A video phone with the function of motion sensing is characterized in that a vibration sensing unit which monitors the motion state of a user and is connected with a base band system is added onto the prior video phone. The invention also provides a method for improving the image quality of the video phone with the function of motion sensing, and the method comprises the following steps: when the video phone user exercises, the vibration sensing unit senses the continuous movement range and the frequency of the user's body, and adapts the code data in an encoder per unit time to the constant bandwidth by adjusting the coding parameters of the encoder of the video phone, thereby realizing self-adapting operation on different application occasions. By controlling the image quality of a single frame, the invention achieves the balance between the image quality and the frame rate, thereby enhancing the effect of image communication, and further realizing self-adapting operation on different application occasions.

Description

technical field [0001] The invention relates to the communication field, in particular to a video phone with a motion sensing function and an image quality enhancing method thereof. Background technique [0002] With the development of communication technology, people are no longer satisfied with ordinary voice phone communication, and video phone is gradually becoming popular, bringing you a richer communication experience. Among them, there are video telephony based on the circuit switching domain and video telephony based on the packet switching domain. In the field of mobile communication, due to the limitation of communication bandwidth, the bandwidth currently used for video telephony still cannot meet the optimal bandwidth required for 6M image communication. [0003] With limited bandwidth, image quality for video telephony is becoming increasingly important. After the protocol stacks of both parties achieve a consistent capability exchange, the encoding format of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/14H04N7/26H04N19/146
Inventor 刘国利
Owner SHANGHAI SIMCOM LTD
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