CN102984477A - Processing method and device for video and audio information and television - Google Patents

Abstract

The invention relates to a video and audio information processing method, device and television. The method includes: detecting the target object at the current moment to obtain the current position value of the target object at the current moment; performing weighting processing on the current position value to obtain the current weighted position value of the target object; combining the current weighted position value with the reference The reference value includes a maximum position value, a minimum position value and a reference position value; when the current weighted position value is between the maximum position value and the minimum position value, according to the current weighted position value value and the reference position value to obtain the adjustment factor of the corresponding video and audio parameter; according to the adjustment factor of the video and audio parameter, the video and audio information is adjusted. The embodiment of the present invention realizes the automatic processing of the video and audio information of the TV, and reduces the processing complexity of the video and audio information of the TV.

Description

Video and audio information processing method, device and television

technical field

The invention relates to the technical field of television, in particular to a method and device for processing video and audio information and a television.

Background technique

With the rapid development of TV technology, there are more and more adjustable items for TV video and audio. While TV sets are developing rapidly, there are also some disadvantages in application. For example, there are many menu items in the TV video and audio adjustment menu. Users need to use these menu items to adjust the TV video and audio effects. Generally, users do not understand the functions corresponding to these menus, and often cannot get what they want during the adjustment process. video and audio effects.

In the prior art, the method for adjusting the video and audio of the TV is usually to open the video and audio adjustment window, and set the image display or volume of the TV through corresponding menu items. The menu items of audio frequency adjustment currently used include left channel, right channel, balance, volume, etc.; the menu items of image adjustment include image brightness, image contrast, color saturation, etc. The video and audio adjustment method makes the processing of TV video and audio information more complicated, and reduces the experience effect of the user.

Contents of the invention

Embodiments of the present invention provide a video and audio information processing method, device, and television, which can automatically process the video and audio information of the television, and reduce the processing complexity of the video and audio information of the television.

In a first aspect, an embodiment of the present invention provides a method for processing video and audio information, the method comprising:

Detecting the target object at the current moment, and obtaining the current position value of the target object at the current moment;

performing weighting processing on the current position value to obtain the current weighted position value of the target object;

comparing the current weighted position value with reference values, the reference values comprising a maximum position value, a minimum position value and a reference position value;

When the current weighted position value is between the maximum position value and the minimum position value, according to the current weighted position value and the reference position value, the adjustment factor of the corresponding video and audio parameter is obtained;

The video and audio information is adjusted according to the adjustment factor of the video and audio parameter.

In a first possible implementation manner, after acquiring the adjustment factor of the corresponding video and audio parameter, the method further includes: storing the current weighted position value as the reference position value to be compared.

With reference to the first aspect, in a second possible implementation manner, the obtaining the adjustment factor of the corresponding video and audio parameter includes: using the adjustment factor function of the video and audio parameter corresponding to the weighted current position to calculate the video and audio parameter adjustment factor.

With reference to the first aspect, in a third possible implementation manner, the adjusting the video and audio information according to the adjustment factor of the video and audio parameter includes: converting the adjustment factor of the video and audio parameter into the video and audio parameter The adjustment amount of the audio parameter; according to the adjustment amount of the video and audio parameter, the video and audio information is adjusted.

With reference to the first aspect, in a fourth possible implementation manner, after comparing the current weighted position value with a reference value, it further includes: when the current weighted position value is not greater than the minimum position value, if The target object represented by the reference value is in a close state, and the recording time of the reference value is not empty, then calculate the duration of the close state; the duration of the close state exceeds the preset When the time threshold is reached, a prompt message for hibernation or shutdown will be displayed.

With reference to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner, after comparing the current weighted position value with a reference value, it further includes: when the current weighted position value is not greater than When the minimum position value is used, if the target object represented by the reference value is not in a very close state, and the recording time of the reference value is empty, then store the current time as the recording time of the reference value .

With reference to the first aspect, in a sixth possible implementation manner, after comparing the current weighted position value with a reference value, the method further includes: when the current weighted position value is not less than the maximum position value, if The target object represented by the reference value is in an extremely distant state, and the recording time of the reference value is not empty, then calculate the duration of the extremely distant state; the duration of the extremely distant state exceeds the preset When the time threshold is reached, a prompt message for hibernation or shutdown will be displayed.

With reference to the sixth possible implementation manner of the first aspect, in a seventh possible implementation manner, after comparing the current weighted position value with a reference value, it further includes: when the current weighted position value When the maximum position value is reached, if the target object represented by the reference value is not in an extremely far state, and the recording time of the reference value is empty, the current time is stored as the recording time of the reference value.

In combination with the first, second, third, fourth, fifth, sixth, and seventh possible implementations of the first aspect, in the eighth possible implementation, the visual The audio parameters include one or more of brightness parameters, contrast parameters, color saturation parameters, and volume parameters.

In a second aspect, an embodiment of the present invention provides an apparatus for processing video and audio information, the apparatus comprising:

An acquisition unit, configured to detect the target object at the current moment, and acquire the current position value of the target object at the current moment;

a processing unit, configured to perform weight processing on the current position value to obtain the current weighted position value of the target object;

a comparison unit, configured to compare the current weighted position value with a reference value, the reference value including a maximum position value, a minimum position value and a reference position value;

A first calculation unit, configured to obtain corresponding video and audio parameters according to the current weighted position value and the reference position value when the current weighted position value is between the maximum position value and the minimum position value the adjustment factor;

The adjustment unit is configured to perform adjustment processing on the video and audio information according to the adjustment factor of the video and audio parameter.

In a first possible implementation manner, the device further includes: a first storage unit, configured to store the current weighted position value as the reference position value that needs to be compared.

With reference to the second aspect, in a second possible implementation manner, the first calculation unit is specifically configured to: calculate the adjustment factor of the video and audio parameter by using the adjustment factor function of the video and audio parameter corresponding to the weighted current position .

With reference to the second aspect, in a third possible implementation manner, the adjustment unit is specifically configured to: convert the adjustment factor of the video and audio parameter into an adjustment amount of the video and audio parameter; Adjustment amount, adjust the video and audio information.

With reference to the second aspect, in a fourth possible implementation manner, the device further includes: a second calculation unit, configured to, when the current weighted position value is not greater than the minimum position value, if the reference value represents The target object is in the close state, and the recording time of the reference value is not empty, then calculate the duration of the close state; close the unit, for the duration of the close state exceeds the preset When the time threshold is reached, a prompt message for hibernation or shutdown will be displayed.

With reference to the fourth possible implementation manner of the second aspect, in a fifth possible implementation manner, the device further includes: a second storage unit configured to, when the current weighted position value is not greater than the minimum position value , if the target object represented by the reference value is not in a very close state, and the recording time of the reference value is empty, the current time is stored as the recording time of the reference value.

With reference to the fifth possible implementation manner of the second aspect, in a sixth possible implementation manner, the second calculation unit is further configured to, when the current weighted position value is not less than the maximum position value, if The target object represented by the reference value is in an extremely distant state, and the recording time of the reference value is not empty, then calculate the duration of the extremely distant state; the closing unit is also used for, the extremely distant When the duration of the state exceeds the preset time threshold, a prompt message for hibernation or shutdown is displayed.

With reference to the sixth possible implementation manner of the second aspect, in a seventh possible implementation manner, the second storage unit is further configured to, when the current weighted position value is the maximum position value, if the If the target object represented by the reference value is not in an extremely distant state, and the recording time of the reference value is empty, then the current time is stored as the recording time of the reference value.

In combination with the first, second, third, fourth, fifth, sixth, and seventh possible implementations of the second aspect, in the eighth possible implementation, the visual The audio parameters include one or more of brightness parameters, contrast parameters, color saturation parameters, and volume parameters.

In a third aspect, an embodiment of the present invention provides a TV, the TV includes the above-mentioned apparatus for processing video and audio information.

The video and audio information processing method, device and television provided by the embodiments of the present invention obtain the current position value of the target object at the current time by detecting the target object at the current moment; perform weighting processing on the current position value , to obtain the current weighted position value of the target object; compare the current weighted position value with a reference value, the reference value includes a maximum position value, a minimum position value and a reference position value; when the current weighted position value is at When the maximum position value is between the minimum position value, according to the current weighted position value and the reference position value, the adjustment factor of the corresponding video and audio parameter is obtained; according to the adjustment factor of the video and audio parameter, the The video and audio information is adjusted and processed. Thus, the automatic adjustment of the video and audio information of the TV is realized, and the processing complexity of the video and audio information of the TV is reduced.

Description of drawings

FIG. 1 is a flowchart of a method for processing video and audio information provided by an embodiment of the present invention;

FIG. 2 is a flow chart of another video and audio information processing method provided by an embodiment of the present invention;

FIG. 3 is a schematic diagram of a video and audio information processing device provided by an embodiment of the present invention;

Fig. 4 is a schematic diagram of a TV provided by an embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

The video and audio information processing method, device and TV set provided by the embodiments of the present invention can be used as a new video and audio information processing method in the scene of TV video and audio information processing in actual application. There are many ways for the user to adjust the video and audio information of the TV set, for example, by pressing a button on the TV set to adjust the sound or image effect, or by using a remote controller to remotely adjust the sound or image effect of the TV set. The embodiment of the present invention provides a new method for processing video and audio information, that is, the TV automatically adjusts the video and audio information of the TV by detecting the position change of a person in the target space.

The embodiments of the present invention aim at the defects of the prior art, and provide a video and audio information processing method, device and television. The television detects the target object at the current moment, and obtains the current position value of the target object at the current moment; performs weighting processing on the current position value to obtain the current weighted position value of the target object; The position value is compared with a reference value, and the reference value includes a maximum position value, a minimum position value and a reference position value; when the current weighted position value is between the maximum position value and the minimum position value, according to the The current weighted position value and the reference position value are used to obtain the adjustment factor of the corresponding video and audio parameter; according to the adjustment factor of the video and audio parameter, the video and audio information is adjusted. Thus, the automatic adjustment of the video and audio information of the TV is realized, and the processing complexity of the video and audio information of the TV is reduced.

FIG. 1 is a flow chart of a method for processing video and audio information provided by an embodiment of the present invention. The implementation subject of this embodiment is a TV, which describes the method flow for the TV to automatically adjust the video and audio information of the TV by comparing the position value of the target object at the current moment with the reference value. As shown in Figure 1, this embodiment includes the following steps:

Step 101 , the TV detects the target object at the current moment, and acquires the current position value of the target object at the current moment.

The human body detection sensor and the distance measurement sensor are built into the TV. The human body detection sensor can detect the presence of a person at the current moment by detecting the infrared rays emitted by the human body, that is, the area of the target object, and the distance measurement sensor can measure the distance between the target object and the TV Machine position value.

Of course, in a designated space, there may be one or more target objects, and the human body detection sensor can detect all target objects in the designated space by detecting the infrared rays emitted by the human body. The space of a fan-shaped area with the center as the circle.

Step 102, the TV performs weighting processing on the current position value to obtain the current weighted position value of the target object.

After the television obtains the position values of all target objects at the current moment, the weighting formula may be used to perform weighting processing on the position values of all target objects at the current moment, so as to obtain the current weighted position value d of the target object.

Step 103, the TV compares the current weighted position value with a reference value, and the reference value includes a maximum position value, a minimum position value and a reference position value.

In the embodiment of the present invention, the reference position value can be a preset reference value, or a weighted position value obtained in a certain historical video and audio adjustment, for example, the weighted position value obtained in the last video and audio mediation can be used as this The reference position value used in secondary AV adjustments. By comparing the current weighted position value with the reference position value, the video and audio can be adjusted according to the magnitude relationship between the weighted position value at the current moment and the reference position value.

In the embodiment of the present invention, the reference values include: a maximum position value d_max, a minimum position value d_min, and a reference position value d_last. Wherein, the maximum position value is a preset maximum position reference value, the minimum position value is a preset minimum position reference value, and the reference position value is the position value of the last detected target object.

In addition, the reference value can also include: d_near (whether the target object represented by the reference value is in a very close state, this value can take a value of 0 or 1, respectively indicating that the target object is in a very close state or not in a very close state) , d_far (whether the target object represented by the reference value is in the extremely far state, this value can take a value of 0 or 1, respectively indicating that the target object is in the extremely far state and not in the extremely far state), d_lastTime (the setting time of the reference value) , duration (the duration of the current state), the maximum position value d_max and the minimum position value d_min, and (whether in the sleep prompt state), prompt_info_index (sleep prompt information index, used to index according to the value of is_sleep_prompt to be displayed on the TV For the content on the screen, if the value of is_sleep_prompt is 1, it means that the TV is set to sleep, and the prompt information to be displayed can be indexed according to the prompt_info_index parameter).

Among them, if the target object is in a very close state, set d_near to True, otherwise set to false; if the target object is in a very far state, set d_far to True, otherwise set to false; if the target object was very close in the last measurement state or extreme state, set d_lastTime to the last time the target object was measured, otherwise set d_lastTime to null; the value of duration is the duration of the last record plus the difference between the current time and the last time the target object was measured , namely duration+=(current time-d_lastTime).

Step 104, when the current weighted position value is between the maximum position value and the minimum position value, the TV obtains the adjustment of the corresponding video and audio parameters according to the current weighted position value and the reference position value factor.

After the comparison operation in step 103, the obtained comparison result may be one of the following four types: d_min<d<d_last<d_max, d_min<d_last<d<d_max, d<=d_min, d>=d_max.

Acquiring the adjustment factor of the video and audio parameter corresponding to the current weighted position value includes: calculating the adjustment factor of the video and audio parameter by using the adjustment factor function of the video and audio parameter corresponding to the weighted current position.

When d_min<d<d_last<d_max or d_min<d_last<d<d_max, the adjustment factor of each video and audio parameter can be calculated by using the pre-built adjustment factor function of the video and audio parameter to form a video and audio parameter adjustment matrix. Wherein, the adjustment factor function may be a function of the difference between the current weighted position value and the reference position value.

Specifically, when d_min<d<d_last<d_max, the difference Δd=d−d_last between the current weighted position value and the reference position value may be calculated first. According to the adjustment factor function luma_step=fun_luma(Δd) of the brightness parameter, the adjustment factor luma_step of the brightness parameter can be obtained; according to the adjustment factor function contrast_step=fun_contrast(Δd) of the contrast parameter, the adjustment factor contrast_step of the contrast parameter can be obtained; according to the color saturation The adjustment factor function saturation_step=fun_saturation(Δd) of the parameter can obtain the adjustment factor saturation_step of the color saturation; according to the adjustment factor function volume_step=fun_volume(Δd) of the volume parameter, the adjustment factor volume_step of the volume can be obtained. In addition, set is_sleep_prompt to false and prompt_info_index to empty.

Specifically, when d_min<d_last<d<d_max, the difference Δd=d−d_last between the current weighted position value and the reference position value may be calculated first. According to the adjustment factor function luma_step=fun_luma(Δd) of the brightness parameter, the adjustment factor luma_step of the brightness parameter can be obtained; according to the adjustment factor function contrast_step=fun_contrast(Δd) of the contrast parameter, the adjustment factor contrast_step of the contrast parameter can be obtained; according to the color saturation The adjustment factor function saturation_step=fun_saturation(Δd) of the parameter can obtain the adjustment factor of the color saturation; according to the adjustment factor function volume_step=fun_volume(Δd) of the volume parameter, the adjustment factor volume_step of the volume can be obtained. In addition, set is_sleep_prompt to false and prompt_info_index to empty.

When d<=d_min, it can be judged whether the last recorded reference value is in a very close state, that is, whether d_last is not greater than the minimum position value d_min, if the target object represented by the last recorded reference value is in a very close state, Then update the duration duration, and judge whether the updated duration is greater than a preset time threshold, and if it is greater, display a sleep or shutdown prompt message. If d<=d_min at the current moment, but the reference value recorded last time is not in a very close state, save the current moment as d_lastTime.

When d>=d_max, it can be judged whether the target object represented by the reference value recorded last time is in an extreme state, that is, whether d_last is not less than the maximum position value d_max, if the target object represented by the reference value recorded last time is in In the extremely far state, update the duration duration, and judge whether the updated duration is greater than the preset time threshold, and if it is greater, display a sleep or shutdown prompt message. If d>=d_max at the current moment, but the target object represented by the reference value recorded last time is not in the extremely far state, save the current moment as d_lastTime.

Among them, the video and audio parameter adjustment matrix includes the adjustment factors of video and audio parameters and the prompt information of sleep or shutdown. The complete adjustment matrix is as follows: T={luma_step, contrast_step, volume_step, is_sleep_prompt, prompt_info_index}; Of course, with the advancement of technology , the parameters of audio and video may be upgraded, but the overall process is the same.

The technical feature of this feature is to obtain the adjustment range for brightness, chroma and volume through the difference between the current weighted position value and the reference position value. The difference between the current position value and the reference position value is actually a representation of the "change" of the position of the audience or the target object relative to the previous recognition or a value that can represent the change, and then can be based on this change or representation. The value of the variation is adjusted for brightness, chroma, and volume. In the embodiment of the present invention, the amount of change is obtained by simply making a difference between the weighted position value and the reference position value, or a value that can characterize the amount of change is obtained. However, in practical applications, other methods can be used. A one-dimensional or two-dimensional calculation function, using the current weighted position value and the reference position value as parameters to obtain adjustment factors corresponding to the two. Furthermore, in an alternative embodiment,

In the embodiment of the present invention, the logical relationship between the current position value and the reference position value is obtained by making a difference. In practical applications, it can also be calculated according to other algorithmic formulas and then according to the preset adjustment factor function. Computes adjustments for brightness, chroma, and volume.

In step 105, the TV adjusts the video and audio information according to the adjustment factor of the video and audio parameters.

According to the adjustment factor of the video and audio parameter, adjusting the video and audio information includes: converting the adjustment factor of the video and audio parameter into the adjustment amount of the video and audio parameter; according to the adjustment amount of the video and audio parameter, The video and audio information is adjusted and processed.

After the adjustment factor of the video and audio parameter is obtained by step 104, the TV controller converts the adjustment factor into the adjustment amount of the video and audio parameter that the TV can use, and according to the adjustment amount of the video and audio parameter, the video and audio information of the TV Do intelligent adjustment processing, such as increasing the volume, increasing the brightness, entering sleep prompts, etc.

It should be noted that if is_sleep_prompt is true, the TV needs a sleep prompt and a countdown; prompt_info_index is the information index of the sleep prompt that needs to be displayed, for example: when the distance is too close, it is harmful to health, it is recommended to sleep or turn off, When the distance is too far, it cannot be viewed normally, and it is recommended to sleep or close it. Certainly, the embodiment of the present invention can be customized into more information indexing options, and there is no limitation on the information indexing options. If is_sleep_prompt is false and is currently in the sleep prompt state, cancel the sleep prompt and close the prompt information.

It should be noted that the video and audio parameters in this embodiment can be one or more of brightness parameters, image contrast parameters, color saturation parameters, and volume parameters, or other parameters that can adjust image display effects and sound effects. Parameters, in this embodiment, brightness parameters, contrast parameters, color saturation parameters, and volume parameters are used as examples for illustration, and are not used to limit the scope of protection of the present invention.

Thus, this embodiment calculates the adjustment factor of the video and audio parameters of the TV according to the variation of the position of the target object, and automatically adjusts the video and audio information according to the adjustment factor of the video and audio parameters, thereby reducing the video and audio parameters of the TV. The processing complexity of audio information.

The above-mentioned embodiments simply describe the method flow of the TV automatically adjusting the video and audio of the TV by comparing the position value of the target object at the current moment with the reference value. The following embodiments describe in detail the automatic adjustment of the video and audio of the TV. method flow.

FIG. 2 is a flow chart of another video and audio information processing method provided by an embodiment of the present invention. The implementation subject of this embodiment is a TV set, which describes in detail the flow of the method for the TV set to automatically adjust the video and audio of the TV set by comparing the position value of the target object at the current moment with the reference value. As shown in Figure 2, this embodiment includes the following steps:

In step 201, the television detects the target object at the current moment, and acquires the current position value of the target object at the current moment.

The human body detection sensor and the distance measurement sensor are built into the TV. The human body detection sensor can detect the presence of a person at the current moment by detecting the 10μm infrared rays emitted by the human body, that is, the area of the target object, and the distance measurement sensor can measure the target object. Position value relative to the TV. The human body detection sensor here can be the pyroelectric MP motion sensor NaPiOn. The pyroelectric MP motion sensor NaPiOn is currently the smallest infrared human body detection sensor, which can detect the human body by detecting the 10μm infrared rays emitted by the human body. Certainly, other sensors capable of detecting the human body may also be used in this embodiment, which is not limited in the present invention. The distance measurement sensor can be a Banner QT50U ultra-long-distance ultrasonic displacement sensor. The Banner QT50U ultra-long-distance ultrasonic displacement sensor can very accurately measure the distance between the human body and the TV, that is, the position value of the target object.

Of course, in a designated space, there may be one or more target objects, and the human body detection sensor can detect all target objects in the designated space by detecting the infrared rays emitted by the human body. The space of a fan-shaped area with the center as the circle.

The specific method of obtaining the target object and the position value of the target object by the human body induction sensor is as follows: set N collection areas in the space of the fan-shaped area to be detected, and detect the i-th (i=1, 2, ..... ., N) Whether there is a target object si.has_human in the collection areas, if yes, measure the distance si.distance of the target object, and obtain the corresponding i (i=1, 2, ..., N) The semaphore si(has_human, distance) of each acquisition area forms a semaphore sequence S={s1, s2,...sN}.

Step 202, the television performs weighting processing on the current position value to obtain the current weighted position value of the target object.

The obtained semaphore sequence S={s1, s2, . . . sN} is weighted using a weighting formula to obtain the current weighted position value.

In step 203, the TV compares the current weighted position value with a reference value, and the reference value includes a maximum position value, a minimum position value and a reference position value.

In the embodiment of the present invention, the reference position value can be a preset reference value, or a weighted position value obtained in a certain historical video and audio adjustment, for example, the weighted position value obtained in the last video and audio mediation can be used as this The reference position value used in secondary AV adjustments. By comparing the current weighted position value with the reference position value, the magnitude relationship between the current weighted position value and the reference position value can be obtained.

In the embodiment of the present invention, the reference values include: a maximum position value d_max, a minimum position value d_min, and a reference position value d_last. Wherein, the maximum position value is a preset maximum position reference value, the minimum position value is a preset minimum position reference value, and the reference position value is the position value of the last detected target object. In addition, the reference value can also include: d_near (whether the target object represented by the reference value is in a very close state, this value can take a value of 0 or 1, respectively indicating that the target object is in a very close state or not in a very close state) , d_far (whether the target object represented by the reference value is in the extremely far state, this value can take a value of 0 or 1, respectively indicating that the target object is in the extremely far state and not in the extremely far state), d_lastTime (the setting time of the reference value) , duration (the duration of the current state), the maximum position value d_max and the minimum position value d_min, and (whether in the sleep prompt state), prompt_info_index (sleep prompt information index, used to index according to the value of is_sleep_prompt to be displayed on the TV screen If the value of is_sleep_prompt is 1, it means that the TV is set to sleep, and the prompt information to be displayed can be indexed according to the prompt_info_index parameter). Among them, if the target object is in a very close state, set d_near to True, otherwise set to false; if the target object is in a very far state, set d_far to True, otherwise set to false; if the target object was very close in the last measurement state or extreme state, set d_lastTime to be the last time the target object was measured, otherwise set it to null; the value of duration is the duration of the last record plus the difference between the current time and the last time the target object was measured, that is duration+=(current time-d_lastTime).

When the target object is too far or too close to the TV, it may not be suitable for watching TV programs. Considering this situation, the reference value can also include a maximum position value d_max and a minimum position value d_min, and the current weighted position value When comparing with the reference value, the current weighted position value is also compared with the maximum position value d_max and the minimum position value d_min.

Step 204, when the current weighted position value is between the maximum position value and the minimum position value, according to the current weighted position value and a reference position value, an adjustment factor of the video and audio parameter is acquired.

Acquiring the adjustment factor of the video and audio parameter of the current weighted position value includes: calculating the adjustment factor of the video and audio parameter by using the adjustment factor function of the video and audio parameter corresponding to the weighted current position.

Specifically, when d_min<d<d_last<d_max, the difference Δd=d−d_last between the current weighted position value and the reference position value may be calculated first. According to the adjustment factor function luma_step=fun_luma(Δd) of the brightness parameter, the adjustment factor luma_step of the brightness parameter can be obtained; according to the adjustment factor function contrast_step=fun_contrast(Δd) of the contrast parameter, the adjustment factor contrast_step of the contrast parameter can be obtained; according to the color saturation The adjustment factor function saturation_step=fun_saturation(Δd) of the parameter can obtain the adjustment factor saturation_step of the color saturation; according to the adjustment factor function volume_step=fun_volume(Δd) of the volume parameter, the adjustment factor volume_step of the volume can be obtained.

Specifically, when d_min<d_last<d<d_max, the difference Δd=d−d_last between the current weighted position value and the reference position value may be calculated first. According to the adjustment factor function luma_step=fun_luma(Δd) of the brightness parameter, the adjustment factor luma_step of the brightness parameter can be obtained; according to the adjustment factor function contrast_step=fun_contrast(Δd) of the contrast parameter, the adjustment factor contrast_step of the contrast parameter can be obtained; according to the color saturation The adjustment factor function saturation_step=fun_saturation(Δd) of the parameter can obtain the adjustment factor of the color saturation; according to the adjustment factor function volume_step=fun_volume(Δd) of the volume parameter, the adjustment factor volume_step of the volume can be obtained.

The technical feature of this feature is to obtain the adjustment range for brightness, chroma and volume through the difference between the current weighted position value and the reference position value. The difference between the current position value and the reference position value is actually a representation of the "change" of the position of the audience or the target object relative to the previous recognition or a value that can represent the change, and then can be based on this change or representation. The value of the variation is adjusted for brightness, chroma, and volume. In the embodiment of the present invention, the amount of change is obtained by simply making a difference between the weighted position value and the reference position value, or a value that can characterize the amount of change is obtained. However, in practical applications, other methods can be used. A one-dimensional or two-dimensional calculation function, using the current weighted position value and the reference position value as parameters to obtain adjustment factors corresponding to the two. Furthermore, in an alternative embodiment,

In the embodiment of the present invention, the logical relationship between the current position value and the reference position value is obtained by making a difference. In practical applications, it can also be calculated according to other algorithmic formulas and then according to the preset adjustment factor function. Computes adjustments for brightness, chroma, and volume.

Step 205, perform adjustment processing on the video and audio information according to the adjustment factor of the video and audio parameter.

According to the adjustment factor of the video and audio parameter, adjusting the video and audio information includes: converting the adjustment factor of the video and audio parameter into the adjustment amount of the video and audio parameter; according to the adjustment amount of the video and audio parameter, The video and audio information is adjusted and processed.

When d<=d_min, it can be judged whether the last recorded reference value is in a very close state.

According to the value of d_near in the reference value, it can be judged whether the target object represented by the reference value is in a very close state. If the value of d_near is true, it means that the target object represented by the reference value is in a very close state; otherwise, it means that the target object represented by the reference value is not in a very close state.

Step 206, when the current weighted position value is not greater than the minimum position value, if the target object represented by the reference value is in a very close state, and the recording time of the reference value is not empty, then calculate the Duration: when the duration of the extremely close state exceeds a preset time threshold, a prompt message for sleep or shutdown is displayed.

If the target object represented by the last recorded reference value is in a very close state, then update the duration duration, and judge whether the updated duration is greater than a preset time threshold, and if so, display a sleep or shutdown prompt message. The purpose of displaying the prompt information of hibernation or shutdown is for the user to decide whether to make the TV enter the shutdown or hibernation state. Of course, it can also be set to directly turn off the TV or put the TV into sleep mode.

Step 207, when the current weighted position value is not greater than the minimum position value, if the target object represented by the reference value is not in a very close state, and the recording time of the reference value is empty, store the current moment as The recording time of the reference value.

If the target object represented by the reference value recorded last time is not in a very close state, save the current moment as d_lastTime. In order to be used as a reference value for the next time. Also set the duration to 0.

Step 208, when the current weighted position value is not less than the maximum position value, it is judged whether the target object represented by the reference value is in an extremely far state.

When d>=d_max, it can be judged whether the last recorded reference value is in an extreme state.

If d_far in the reference value is true, it is judged that the target object represented by the reference value is in the extremely far state, otherwise it is judged that the target object represented by the reference value is not in the extremely far state.

Step 209, when the current weighted position value is not less than the maximum position value, if the target object represented by the reference value is in the extremely far state, and the recording time of the reference value is not empty, then calculate the Duration: when the duration of the extremely remote state exceeds a preset time threshold, a prompt message for sleep or shutdown is displayed.

When d>=d_max, it can be judged whether the last recorded reference value is in the extremely far state, if the target object represented by the last recorded reference value is in the extremely far state, then update the duration duration, and judge the updated Whether the duration is greater than the preset time threshold, and if it is greater, a prompt message for hibernation or shutdown will be displayed. The purpose of displaying the prompt information of hibernation or shutdown is for the user to decide whether to make the TV enter the shutdown or hibernation state. Of course, it can also be set to directly turn off the TV or put the TV into sleep mode.

Step 210, when the current weighted position value is not less than the preset maximum position value, if the target object represented by the reference value is not in an extremely far state, and the recording time of the reference value is empty, the current The time is stored as the recording time of the reference value.

When d>=d_max, it can be judged whether the last recorded reference value is in the extremely far state, and if the last recorded reference value is not in the extremely far state, then save the current time as d_lastTime. In order to be used as a reference value for the next time.

Step 211, storing the current weighted position value as the reference position value to be compared.

According to the calculation from step 204 to step 210, after calculating the adjustment factor of the video and audio parameters, the current weighted position value can be saved as the reference position value d_last of the next detection; if the current weighted position value is not greater than the minimum position value, then the value of d_near Save the value as true, otherwise save the value of d_near as false; if the current weighted position value is not less than the maximum position value, save d_far as true, otherwise save the value of d_far as false; if the current weighted position value is less than or equal to the minimum position value or greater than or equal to the maximum position value, save the current time as d_lastTime, otherwise, save d_lastTime as empty; if the current weighted position value is less than or equal to the minimum position value or greater than or equal to the maximum position value, save duration+(current time-d_lastTime) for duration.

Thus, it is realized that the above position data at the current moment is saved as a reference value for the next detection and adjustment of video and audio parameters.

Step 212, perform adjustment processing on the video and audio information according to the adjustment factors of the video and audio parameters.

After the adjustment factor of the video and audio parameters is obtained through the above steps, the TV controller can convert the adjustment factor into an adjustment amount that the TV controller can use, so that the TV can adjust the video and audio information of the TV according to the adjustment amount , such as increasing volume, increasing brightness, entering shutdown prompts, etc.

Thus, this embodiment calculates the adjustment factor of the video and audio parameters of the TV according to the variation of the position of the target object, and automatically adjusts the video and audio information according to the adjustment factor of the video and audio parameters, thereby reducing the video and audio parameters of the TV. The processing complexity of audio information.

Correspondingly, the embodiment of the present invention also provides an apparatus for processing video and audio information. Fig. 3 is a schematic diagram of an apparatus for processing video and audio information provided by an embodiment of the present invention. As shown in Figure 3, this embodiment includes the following units:

The acquisition unit 301 is configured to detect the target object at the current moment, and acquire the current position value of the target object at the current moment.

A human body detection sensor is built in the TV to obtain the target object at the current moment; a distance measurement sensor is also built in the TV to measure the position value of the target object at the current moment. The target audience here refers to people.

The processing unit 302 is configured to perform weight processing on the current position value to obtain the current weighted position value of the target object.

After the target object and its position value are obtained, the position value of the target object can be weighted to obtain the current weighted position value for comparison with the reference position value.

The comparison unit 303 is configured to compare the current weighted position value with a reference value, the reference value including a maximum position value, a minimum position value and a reference position value.

In the embodiment of the present invention, the reference position value can be a preset reference value, or a weighted position value obtained in a certain historical video and audio adjustment, for example, the weighted position value obtained in the last video and audio mediation can be used as this The reference position value used in secondary AV adjustments. By comparing the current weighted position value with the reference position value, the magnitude relationship between the current weighted position value and the reference position value can be obtained.

In the embodiment of the present invention, the reference values include: a maximum position value d_max, a minimum position value d_min, and a reference position value d_last. Wherein, the maximum position value is a preset maximum position reference value, the minimum position value is a preset minimum position reference value, and the reference position value is the position value of the last detected target object.

In addition, the reference value can also include: d_near (whether the target object represented by the reference value is in a very close state, this value can take a value of 0 or 1, respectively indicating that the target object is in a very close state or not in a very close state) , d_far (whether the target object represented by the reference value is in the extremely far state, this value can take a value of 0 or 1, respectively indicating that the target object is in the extremely far state and not in the extremely far state), d_lastTime (the setting time of the reference value) , duration (the duration of the current state), the maximum position value d_max and the minimum position value d_min, and (whether in the sleep prompt state), prompt_info_index (sleep prompt information index, used to index according to the value of is_sleep_prompt to be displayed on the TV screen If the value of is_sleep_prompt is 1, it means that the TV is set to sleep, and the prompt information to be displayed can be indexed according to the prompt_info_index parameter).

When comparing the current weighted position value with the reference value, the current weighted position value is also compared with the maximum position value d_max and the minimum position value d_min.

The first calculation unit 304 is configured to obtain corresponding video and audio according to the current weighted position value and the reference position value when the current weighted position value is between the maximum position value and the minimum position value The adjustment factor for the parameter.

The first calculation unit 304 is specifically configured to: obtain the adjustment factor function of the corresponding video and audio parameters according to the weighted current position and the reference position value, and calculate the adjustment factor of the video and audio parameters.

When d_min<d<d_last<d_max or d_min<d_last<d<d_max, the adjustment factor of each video and audio parameter can be calculated by using the pre-built adjustment factor function of the video and audio parameter to form a video and audio parameter adjustment matrix. Wherein, the adjustment factor function is a function of the difference between the weighted position value and the reference position value at the current moment.

The technical feature of this feature is to obtain the adjustment range for brightness, chroma and volume through the difference between the current weighted position value and the reference position value. The difference between the current position value and the reference position value is actually a representation of the "change" of the position of the audience or the target object relative to the previous recognition or a value that can represent the change, and then can be based on this change or representation. The value of the variation is adjusted for brightness, chroma, and volume. In the embodiment of the present invention, the amount of change is obtained by simply making a difference between the weighted position value and the reference position value, or a value that can characterize the amount of change is obtained. However, in practical applications, other methods can be used. A one-dimensional or two-dimensional calculation function, using the current weighted position value and the reference position value as parameters to obtain adjustment factors corresponding to the two. Furthermore, in an alternative embodiment,

In the embodiment of the present invention, the logical relationship between the current position value and the reference position value is obtained by making a difference. In practical applications, it can also be calculated according to other algorithmic formulas and then according to the preset adjustment factor function. Computes adjustments for brightness, chroma, and volume.

The adjustment unit 305 is configured to perform adjustment processing on the video and audio information according to the adjustment factor of the video and audio parameter.

The adjustment unit 305 is specifically configured to: convert the adjustment factor of the video and audio parameter into an adjustment amount of the video and audio parameter; and perform adjustment processing on the video and audio information according to the adjustment amount of the video and audio parameter.

Preferably, the embodiment of the present invention further includes: a first storage unit 306, configured to store the current weighted position value as the reference position value to be compared.

Preferably, the embodiment of the present invention further includes: a second calculation unit 307, configured to: when the current weighted position value is not greater than the minimum position value, if the target object represented by the reference value is in a very close state, And the recording time of the reference value is not empty, then calculate the duration of the extremely close state.

The second calculation unit 307 is further configured to, when the current weighted position value is not less than the maximum position value, if the target object represented by the reference value is in an extremely far state, and the recording time of the reference value is not If it is empty, calculate the duration of the extreme state.

The shutdown unit 308 is configured to display a sleep or shutdown prompt message when the duration of the extremely close state exceeds a preset time threshold.

The shutdown unit 308 is further configured to display a sleep or shutdown prompt message when the duration of the extreme remote state exceeds a preset time threshold.

Preferably, this embodiment of the present invention further includes: a second storage unit 309, when the current weighted position value is not greater than the minimum position value, if the target object represented by the reference value is not in a very close state, and If the recording time of the reference value is empty, the current time is stored as the recording time of the reference value.

The second storage unit 309 is also used for, when the current weighted position value is the maximum position value, if the target object represented by the reference value is not in an extremely far state, and the recording time of the reference value is empty , then store the current time as the recording time of the reference value.

It should be noted that the video and audio parameters in this embodiment can be one or more of brightness parameters, image contrast parameters, color saturation parameters, and volume parameters, or other parameters that can adjust image display effects and sound effects. Parameters, in this embodiment, brightness parameters, contrast parameters, color saturation parameters, and volume parameters are used as examples for illustration, and are not used to limit the scope of protection of the present invention.

Thus, this embodiment calculates the adjustment factor of the video and audio parameters of the TV according to the variation of the position of the target object, and automatically adjusts the video and audio information according to the adjustment factor of the video and audio parameters, thereby reducing the video and audio parameters of the TV. The processing complexity of audio information.

Correspondingly, the embodiment of the present invention also provides a TV. Fig. 4 is a schematic diagram of a TV provided by an embodiment of the present invention. As shown in FIG. 4 , this embodiment includes the following components: a human body detection sensor 401 , a distance measurement sensor 402 , an analyzer 403 , a processor 404 , a controller 405 , and a memory 406 .

The human body detection sensor 401 is used to detect the target object at the current moment, and send the target object information at the current moment to the distance measurement sensor 402 .

The distance measurement sensor 402 is used to receive the target object information at the current moment from the human body detection sensor 401, and obtain the current position value of the target object at the current moment, and transmit the current position value of the target object at the current moment to the analyzer 403.

Analyzer 403, configured to receive the position value of the target object at the current moment from the distance measurement sensor 402, perform weighting processing on the current position value, obtain the current weighted position value d, and transmit the current weighted position value to the processor 404 .

The processor 404 is configured to receive the calculated current weighted position value from the analyzer 403, obtain the stored reference value from the memory 406, and compare the current weighted position value with the reference value; according to the comparison result, use the corresponding video and audio The adjustment factor function of the parameter calculates the adjustment factor of the video and audio parameter, and transmits the adjustment factor to the controller 405 .

In the embodiment of the present invention, the reference values include: a maximum position value d_max, a minimum position value d_min, and a reference position value d_last. Wherein, the maximum position value is a preset maximum position reference value, the minimum position value is a preset minimum position reference value, and the reference position value is the position value of the last detected target object.

In addition, the reference value can also include: d_near (whether the target object represented by the reference value is in a very close state, this value can take a value of 0 or 1, respectively indicating that the target object is in a very close state or not in a very close state) , d_far (whether the target object represented by the reference value is in the extremely far state, this value can take a value of 0 or 1, respectively indicating that the target object is in the extremely far state and not in the extremely far state), d_lastTime (the setting time of the reference value) , duration (the duration of the current state), the maximum position value d_max and the minimum position value d_min, and (whether in the sleep prompt state), prompt_info_index (sleep prompt information index, used to index according to the value of is_sleep_prompt to be displayed on the TV screen If the value of is_sleep_prompt is 1, it means that the TV is set to sleep, and the prompt information to be displayed can be indexed according to the prompt_info_index parameter).

When d_min<d<d_last<d_max or d_min<d_last<d<d_max, the processor 404 is specifically configured to use the pre-built adjustment factor function of the video and audio parameters to calculate the adjustment factors of each video and audio parameter to form a video and audio parameter adjustment matrix. Wherein, the adjustment factor function is a function of the difference between the current weighted position value and the reference position value.

Specifically, when d_min<d<d_last<d_max, the difference Δd=d−d_last between the current weighted position value and the reference position value may be calculated first. According to the adjustment factor function luma_step=fun_luma(Δd) of the brightness parameter, the adjustment factor luma_step of the brightness parameter can be obtained; according to the adjustment factor function contrast_step=fun_contrast(Δd) of the contrast parameter, the adjustment factor contrast_step of the contrast parameter can be obtained; according to the color saturation The adjustment factor function saturation_step=fun_saturation(Δd) of the parameter can obtain the adjustment factor saturation_step of the color saturation; according to the adjustment factor function volume_step=fun_volume(Δd) of the volume parameter, the adjustment factor volume_step of the volume can be obtained.

Specifically, when d_min<d_last<d<d_max, the difference Δd=d−d_last between the current weighted position value and the reference position value may be calculated first. According to the adjustment factor function luma_step=fun_luma(Δd) of the brightness parameter, the adjustment factor luma_step of the brightness parameter can be obtained; according to the adjustment factor function contrast_step=fun_contrast(Δd) of the contrast parameter, the adjustment factor contrast_step of the contrast parameter can be obtained; according to the color saturation The adjustment factor function saturation_step=fun_saturation(Δd) of the parameter can obtain the adjustment factor of the color saturation; according to the adjustment factor function volume_step=fun_volume(Δd) of the volume parameter, the adjustment factor volume_step of the volume can be obtained.

When d<=d_min, the processor 404 can judge whether the target object represented by the last recorded reference value is in a very close state, that is, whether d_last is not greater than the minimum position value d_min, if the last recorded reference value represents the target object When the target object is in a very close state, update the duration duration, and judge whether the updated duration is greater than the preset time threshold, and if it is greater, display a sleep or shutdown prompt message. If d<=d_min at the current moment, but the reference value recorded last time is not in a very close state, save the current moment as d_lastTime.

When d>=d_max, the processor 404 can judge whether the target object represented by the reference value recorded last time is in an extremely far state, that is, whether d_last is not less than the maximum position value d_max, if the target object represented by the reference value recorded last time If the object is in the extremely far state, update the duration duration, and judge whether the updated duration is greater than the preset time threshold, and if it is greater, display a sleep or shutdown prompt message. If d>=d_max at the current moment, but the target object represented by the reference value recorded last time is not in the extremely far state, save the current moment as d_lastTime.

The controller 405 is configured to receive the adjustment factor or the closing prompt information from the processor 404, and convert the adjustment factor or the closing prompt information into the adjustment amount of the video and audio parameters that can be used by the TV set, and according to the adjustment amount, the TV set The video and audio output information is intelligently adjusted and processed.

The memory 406 is used for storing relevant information such as reference values.

Thus, the television set provided by the embodiment of the present invention can intelligently adjust the output of video and audio information according to the position change of the target object, and reduce the processing complexity of the video and audio information of the TV set.

Professionals should further realize that the units and algorithm steps described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the relationship between hardware and software Interchangeability. In the above description, the composition and steps of each example have been generally described according to their functions. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present invention.

The steps of the methods or algorithms described in connection with the embodiments disclosed herein may be implemented by hardware, software modules executed by a processor, or a combination of both. Software modules can be placed in random access memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other Any other known storage medium.

The specific embodiments described above have further described the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above descriptions are only specific embodiments of the present invention and are not intended to limit the scope of the present invention. Protection scope, within the spirit and principles of the present invention, any modification, equivalent replacement, improvement, etc., shall be included in the protection scope of the present invention.

Claims (19)

1. the processing method of an audiovisual information is characterized in that, described method comprises:

Destination object to current time detects, and obtains described destination object in the current location value of current time;

Described current location value is weighted processing, obtains the current weighting positional value of described destination object;

Described current weighting positional value and reference value are compared, and described reference value comprises maximum position value, minimum position value and reference position value;

When described current weighting positional value is between described maximum position value and described minimum position value, according to described current weighting positional value and described reference position value, obtain the corresponding regulatory factor of looking audio frequency parameter;

According to the described regulatory factor of looking audio frequency parameter, audiovisual information is regulated processing.

2. the processing method of audiovisual information according to claim 1 is characterized in that, the described regulatory factor of looking audio frequency parameter that obtains correspondence also comprises afterwards: the described reference position value that described current weighting positional value is stored as the needs comparison.

3. the processing method of audiovisual information according to claim 1, it is characterized in that, the described regulatory factor of looking audio frequency parameter that obtains correspondence comprises: utilize the corresponding regulatory factor function of looking audio frequency parameter of described weighting current location, calculate the regulatory factor of looking audio frequency parameter.

4. the processing method of audiovisual information according to claim 1 is characterized in that, and is described according to the described regulatory factor of looking audio frequency parameter, audiovisual information regulated to process comprise:

The described regulatory factor of looking audio frequency parameter is converted to described regulated quantity of looking audio frequency parameter;

According to described regulated quantity of looking audio frequency parameter, audiovisual information is regulated processing.

5. the processing method of audiovisual information according to claim 1 is characterized in that, describedly also comprises after described current weighting positional value and reference value are compared:

When described current weighting positional value is not more than described minimum position value, if the described destination object that described reference value characterizes is in extremely near state, and the writing time of described reference value be empty, then calculate the described extremely closely duration of state;

The duration of described extremely near state shows dormancy or the information of closing when surpassing default time threshold.

6. the processing method of audiovisual information according to claim 5, it is characterized in that, describedly after being compared, described current weighting positional value and reference value also comprise: when described current weighting positional value is not more than described minimum position value, if the described destination object that described reference value characterizes is not in extremely near state, and the record of described reference value is empty constantly, then described current time is stored as the record of described reference value constantly.

7. the processing method of audiovisual information according to claim 1 is characterized in that, describedly also comprises after described current weighting positional value and reference value are compared:

When described current weighting positional value is not less than described maximum position value, if the described destination object that described reference value characterizes is in state extremely far away, and the writing time of described reference value be empty, then calculate the described extremely far duration of state;

The duration of described state extremely far away shows dormancy or the information of closing when surpassing default time threshold.

8. the processing method of audiovisual information according to claim 7, it is characterized in that, describedly after being compared, described current weighting positional value and reference value also comprise: when the described maximum position value of described current weighting positional value, if the described destination object that described reference value characterizes is not in state extremely far away, and the record of described reference value is empty constantly, then described current time is stored as the record of described reference value constantly.

9. the processing method of the described audiovisual information of any one is characterized in that according to claim 1-8, and the described audio frequency parameter of looking comprises in luminance parameter, contrast level parameter, color saturation parameter, the volume parameters one or more.

10. the processing unit of an audiovisual information is characterized in that, described device comprises:

Acquiring unit is used for the destination object of current time is detected, and obtains described destination object in the current location value of current time;

Processing unit is used for described current location value is weighted processing, obtains the current weighting positional value of described destination object;

The contrast unit is used for described current weighting positional value and reference value are compared, and described reference value comprises maximum position value, minimum position value and reference position value;

The first computing unit is used for when described current weighting positional value is between described maximum position value and described minimum position value, according to described current weighting positional value and described reference position value, obtains the corresponding regulatory factor of looking audio frequency parameter;

Regulon is used for according to the described regulatory factor of looking audio frequency parameter, and audiovisual information is regulated processing.

11. the processing unit of audiovisual information according to claim 10 is characterized in that, described device also comprises: the first memory cell is used for described current weighting positional value is stored as the described reference position value that needs comparison.

12. the processing unit of audiovisual information according to claim 10, it is characterized in that, described the first computing unit specifically is used for: utilize the corresponding regulatory factor function of looking audio frequency parameter of described weighting current location, calculate the regulatory factor of looking audio frequency parameter.

13. the processing unit of audiovisual information according to claim 10 is characterized in that, described regulon specifically is used for: the described regulatory factor of looking audio frequency parameter is converted to described regulated quantity of looking audio frequency parameter; According to described regulated quantity of looking audio frequency parameter, audiovisual information is regulated processing.

14. the processing unit of audiovisual information according to claim 10 is characterized in that, described device also comprises:

The second computing unit, be used for when described current weighting positional value is not more than described minimum position value, if the described destination object that described reference value characterizes is in extremely near state, and the writing time of described reference value be empty, then calculate the described extremely closely duration of state;

Closing unit, the duration that is used for described extremely near state shows dormancy or the information of closing when surpassing default time threshold.

15. the processing unit of audiovisual information according to claim 14, it is characterized in that, described device also comprises: the second memory cell, be used for when described current weighting positional value is not more than described minimum position value, if the described destination object that described reference value characterizes is not in extremely near state, and the record of described reference value is empty constantly, then described current time is stored as the record of described reference value constantly.

16. the processing unit of audiovisual information according to claim 15, it is characterized in that, described the second computing unit also is used for, when described current weighting positional value is not less than described maximum position value, if the described destination object that described reference value characterizes is in state extremely far away, and be not empty the writing time of described reference value, then calculates the duration of described state extremely far away;

Described closing unit also is used for, and the duration of described state extremely far away shows dormancy or the information of closing when surpassing default time threshold.

17. the processing unit of audiovisual information according to claim 16, it is characterized in that, described the second memory cell also is used for, when the described maximum position value of described current weighting positional value, if the described destination object that described reference value characterizes is not in state extremely far away, and the record of described reference value is empty constantly, then described current time is stored as the record of described reference value constantly.

18. the processing unit of the described audiovisual information of any one is characterized in that according to claim 10-17, the described audio frequency parameter of looking comprises in luminance parameter, contrast level parameter, color saturation parameter, the volume parameters one or more.

19. a television set is characterized in that described television set comprises the processing unit such as the described audiovisual information of claim 10-18 any one.

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