JP2022069260A - Information processing device - Google Patents

Abstract

To provide an information processing device for making a display part display an image to be easily viewed by a user.SOLUTION: An information processing device includes a video data acquisition unit for acquiring video data, a program information acquisition unit for acquiring program information, a setting value determination part for determining a setting value on the basis of the program information, an image quality adjustment unit for performing image quality adjustment including at least one of adaptive gradation correction for dynamically correcting video contrast and change of gamma value to the video data on the basis of the setting value to generate output image data, and an image output unit for outputting the output image data.SELECTED DRAWING: Figure 1

Description

One aspect of the present invention relates to an information processing device that outputs image data.

In the receiver of television broadcasting, there was a device that changes the processing method of the video according to the video type of the input video in cooperation with the electronic program guide (hereinafter referred to as "EPG"). In Patent Document 1, an electronic program guide acquisition means for acquiring an electronic program guide, a video type discriminating means for discriminating a video type of a video, and a video processing method determining means for determining a video processing method according to the discriminated video type are provided. The video processing apparatus to have is disclosed.

Japanese Unexamined Patent Publication No. 2001-251567

In the video processing apparatus described in Patent Document 1, a technique for reusing a telop frame image by detecting a telop when the discrimination result by the video discrimination means is a video type such as news in which many telops are interpolated. Is disclosed. However, such video processing alone is often not sufficient to display a video that is easy for the user to see. Further, even if the conventional technique other than Patent Document 1 is adopted, there are cases where it is not sufficient to display an image that is easy for the user to see.

In the present invention, for example, the following means are adopted in order to solve the above problems. In the following description, reference numerals and the like in the drawings may be added in parentheses to facilitate understanding of the invention, but each component of the present invention is not limited to those added. However, it should be widely interpreted to the extent that those skilled in the art can technically understand it.

One means of the present invention is
The video data acquisition unit (21) that acquires video data,
The program information acquisition unit (41) that acquires program information, and
A setting value determination unit (42) that determines a setting value based on the program information, and
Based on the set value, the video data is subjected to image quality adjustment including at least one of adaptive gradation correction for dynamically correcting the contrast of the video and change of the gamma value to generate output image data. Image quality adjustment unit (22) and
An image output unit (24) for outputting the output image data is provided.
Information processing device (1).

According to the information processing apparatus having the above configuration, an image that is easier for the user to see can be displayed on the display unit as compared with the mode in which the adaptive gradation correction or the change of the gamma value is not performed as the image quality adjustment. In particular, according to the adaptive gradation correction, the contrast of the image can be dynamically changed. Therefore, even if the contrast of the image changes greatly with time, the contrast is adjusted according to the displayed image. Is possible. For example, when a bright image is changed to a dark image, what is displayed in the dark image can be displayed more easily.
Further, by changing the gamma value, it is possible to make the displayed image clearer, and it is possible to display an image that is easier to see.

In the above information processing apparatus, preferably
The voice data acquisition unit (31) that acquires voice data,
A voice adjustment unit (32) that generates output voice data by performing predetermined voice adjustment to the voice data based on the set value, and
It includes an audio output unit (33) that outputs the output audio data.

According to the information processing device having the above configuration, it is possible to perform voice adjustment suitable for the program. As a result, it is possible to output the optimum image and sound for the program to be viewed, and it is possible to provide an environment in which the user can further enjoy the content.

In the above information processing apparatus, preferably
The set value is determined according to a number of groups classified based on the program information, which is smaller than the number of program types indicated by the program information.

According to the information processing apparatus having the above configuration, it is not necessary to prepare setting values corresponding to all types of programs, so that image quality adjustment can be performed more easily. This makes it possible to reduce the processing load on the information processing device or reduce the storage capacity of the storage device included in the information processing device.
In the above information processing apparatus, preferably
The set value determination unit determines a value obtained by performing a predetermined arithmetic process or a predetermined replacement process on a predetermined basic set value as the set value.

According to the information processing device having the above configuration, the image is easy to see according to the viewer and the type of the program to be viewed, as compared with the mode in which the image and the sound are uniformly emphasized with respect to the basic set value. It is possible to output easy-to-hear voice.

In the information processing apparatus, preferably, when the set value is larger than a predetermined upper limit value, the set value determination unit determines the upper limit value as the set value. Alternatively, when the set value is smaller than a predetermined lower limit value, the set value determination unit determines the lower limit value as the set value.

According to the information processing apparatus having the above configuration, it is possible to prevent the set value from causing a problem in the processed image or sound as a result of performing arithmetic processing or replacement processing on the basic set value.

FIG. 1 is a diagram showing a configuration of an information processing device. FIG. 2 is a flowchart showing a reception process. FIG. 3 is a flowchart showing a set value determination process. FIG. 4 is a flowchart showing image quality adjustment. FIG. 5 is a flowchart showing voice adjustment. FIG. 6 is a table showing the correspondence between the program jean group and the program genre. FIG. 7 is a table showing the basic setting values for image quality adjustment determined for each program genre group and the contents of the calculation and the replacement process used when the function is clearly enabled. FIG. 8 is a table showing the basic setting values for audio adjustment determined for each program genre group and the contents of the calculation and the replacement process used when the function is clearly enabled.

The information processing device according to one aspect of the present invention is, for example, a receiving device for television broadcasting, that is, a television, and performs image quality adjustment including adaptive gradation correction and change of gamma value according to the genre of the program. It is one of the features. Further, one of the features of the information processing device is that it has a function of enabling an elderly person or a viewer having color vision deficiency to output an easy-to-see image and an easy-to-hear sound. The information processing device of the present invention includes not only a device for receiving television broadcasting but also a device for performing predetermined image quality adjustment and audio adjustment based on the received video data and program information.

The information processing apparatus according to one aspect of the present invention will be specifically described with reference to the drawings. However, the embodiments described below are merely examples of the present invention, and do not limit the technical scope of the present invention. In each drawing, the same components are designated by the same reference numerals, and the description thereof may be omitted.

<1. Embodiment>
As shown in FIG. 1, the information processing apparatus 1 includes an antenna 10, a tuner 11, a demodulation unit 12, an error correction unit 13, a data separation unit 14, a video data acquisition unit 21, an image quality adjustment unit 22, and an image superimposition unit 23. Image output unit 24, audio data acquisition unit 31, audio adjustment unit 32, audio output unit 33, program information acquisition unit 41, set value determination unit 42, memory 43, operation reception unit 44, superimposed image generation unit 45, and control unit. It is configured to include 50. A display unit 2 and a speaker 3 are connected to the information processing device 1. At least one of the display unit 2 and the speaker 3 may be integrated with the information processing device 1. When the information processing device 1 is integrated with the display unit 2 and the speaker 3, the information processing device 1 is a so-called television or the like. When the information processing device 1 has a different configuration from the display unit 2 and the speaker 3, the information processing device 1 is a recording device, a so-called set top box (STB), or the like.

Tuner 11, demodulation unit 12, error correction unit 13, data separation unit 14, video data acquisition unit 21, image quality adjustment unit 22, image superimposition unit 23, image output unit 24, audio data acquisition unit 31, audio adjustment unit 32, audio The output unit 33, the program information acquisition unit 41, the set value determination unit 42, the memory 43, the operation reception unit 44, the superimposed image generation unit 45, and the control unit 50 may be configured as a whole by one or a plurality of semiconductor integrated circuits. However, it is not limited to this. Some of these elements may be realized by the CPU running software stored in memory. Further, these elements may be configured to include electronic components that are not semiconductor integrated circuits.

The antenna 10 receives the radio wave of the television broadcast being broadcast. The antenna 10 may be provided separately from the information processing device 1. When receiving a cable broadcast, a signal receiving unit may be provided instead of the antenna 10. In this case, the signal receiving unit receives the transmitted signal instead of the radio wave of the television broadcast.

The tuner 11 extracts a received signal, which is an analog signal, by selecting a transmission channel from the input signal. The demodulation unit 12 modulates an OFDM (Orthogonal Frequency Division Multiplexing) modulated signal into a digital signal by OFDM demodulation. The error correction unit 13 detects and corrects an error included in the digital signal, and outputs a TS packet as a digital signal in which the error has been corrected. The TS packet is data obtained by converting data including video data, audio data, and EPG program information according to a predetermined format. The data separation unit 14 separates the input TS packet into video data, audio data, and EPG program information data, and outputs the data.

The video data acquisition unit 21 acquires video data from the data separation unit 14 and outputs it to the image quality adjustment unit 22. The video data is data such as MPEG-2.

The image quality adjustment unit 22 adjusts the image quality of the video data by a predetermined value, and generates image data frame by frame. The image quality adjustment may be performed on the image data of each frame included in the video data, may be performed on the image data of a plurality of frames, or may be performed on the entire video data. May be good. Further, it may be performed on the image data output from the image output unit 24.

The image quality adjustment unit 22 adjusts the image quality based on the set value determined by the set value determination unit 42. The image quality adjustment unit 22 adjusts the brightness, sharpness, brilliance, contrast, color temperature, backlight brightness, hue, noise reduction, and gamma value as image quality adjustment. And adaptive gradation correction. However, the brightness of the backlight is not adjusted directly to the image data, but is performed by the image quality adjusting unit 22 transmitting a command to change the brightness of the backlight to the display unit 2. .. The brightness of the backlight is adjusted based on the setting value, such as the control unit 50 or the display control unit (not shown) provided separately from the control unit 50, which is different from the image quality adjustment unit 22. You may. Items other than the adjustment of the brightness of the backlight may be performed by adjusting the display mode of the display unit 2 instead of performing the adjustment on the image data. Also, adaptive gradation correction is sometimes referred to as "dynamic contrast". In the present specification, the image data whose image quality has been adjusted by the image quality adjusting unit 22 is referred to as "output image data" for convenience. The specific content of the image quality adjustment will be described later.

The image superimposition unit 23 superimposes the superimposition image generated by the superimposition image generation unit 45 on the output image data input from the image quality adjustment unit 22, and outputs the superimposition image to the image output unit 24. As will be described later, the superimposed image is an image showing the selected channel, volume, current time, subtitles, and the like with characters or symbols.

The image output unit 24 outputs the image data in which the superimposed image is superimposed on the output image data to the display unit 2.

The display unit 2 displays an image based on the image data input from the image output unit 24. The display unit 2 is, for example, a liquid crystal display device, an organic EL display device, a projector, or the like.

The voice data acquisition unit 31 acquires voice data from the data separation unit 14 and outputs it to the voice adjustment unit 32. The audio data is, for example, data such as MPEG-2 AAC.

The voice adjustment unit 32 makes a predetermined voice adjustment for the voice data based on the set value determined by the set value determination unit 42. As a voice adjustment, the voice adjustment unit 32 adjusts the volume of each of the three ranges of low range, mid range, and high range so as to be louder or lower. The range is determined based on the frequency of the sound, and the low frequency sound is the low range, the high frequency sound is the high range, and the high frequency sound is the mid range. The frequency for classifying the range into the low range, the mid range, and the high range can be arbitrarily changed. Further, the number of sound ranges is not limited to 3, and may be any number of 2 or more, or voice adjustment may be performed without dividing the range. These voice adjustments may be performed by controlling the speaker 3 that outputs voice based on the voice data, instead of performing the voice data. Further, it may be performed on the audio data output from the audio output unit 33. In the present specification, the voice data adjusted by the voice adjusting unit 32 is referred to as "output voice data" for convenience. The specific contents of the voice adjustment will be described later.

The audio output unit 33 outputs the output audio data to the speaker 3.

The speaker 3 outputs audio based on the audio data output from the audio output unit 33. The speaker 3 converts a digital signal into an audio signal which is an analog signal, amplifies the digital signal as necessary, and outputs the signal.

The program information acquisition unit 41 acquires EPG program information from the data separation unit 14. The program information acquisition unit 41 stores the acquired program information in the memory 43 and outputs it to the set value determination unit 42.

The memory 43 stores the EPG program information received from the program information acquisition unit 41. Further, as shown in FIG. 6, the memory 43 stores as a table a program genre indicating each program type included in the program information and a program genre group corresponding to these program genres. Further, as shown in FIG. 7, the memory 43 stores the basic setting values for image quality adjustment predetermined for each program genre group, and the contents of the arithmetic processing and the replacement processing used when the clear function described later is enabled. ing. Similarly, as shown in FIG. 8, the memory 43 stores the basic setting values for audio adjustment predetermined for each program genre group, and the contents of the arithmetic processing and the replacement processing used when the clear function described later is enabled. are doing. The memory 43 stores various information other than these information.

The operation reception unit 44 receives an operation by the user, transmits an operation signal corresponding to the received operation to the control unit 50, or stores the operation signal in the memory 43. The operation receiving unit 44 receives, for example, an infrared signal transmitted from the remote controller or an operation using the operation keys provided in the information processing apparatus 1.

The information processing apparatus 1 can operate with a "clear function" that makes the output image and output sound clearer, and by being operated by the user to clearly enable the function, the information processing device 1 operates by the clear function. When the function is clearly effective, a value different from the basic setting value is used as the setting value used for the image quality adjustment and the sound adjustment. The remote controller for remotely controlling the information processing device 1 is provided with an operation key for clearly enabling the function in the information processing device 1. When the user operates this operation key, the operation reception unit 44 accepts this operation and stores information clearly indicating that the function is effective in the memory 43.

The control unit 50 is an arithmetic unit, and causes each component included in the information processing device 1 to perform various operations. Based on the operation signal input from the operation reception unit 44, the control unit 50 causes each component of the information processing apparatus 1 to perform processing such as changing the viewing channel or changing the volume of the output audio.

The setting value determination unit 42 refers to the correspondence between the program genre stored in advance in the memory 43 and the program genre group, and determines the program genre group based on the program genre included in the program information stored in the memory 43. do. The setting value determining unit 42 refers to the basic setting values for image quality adjustment and audio adjustment stored in the memory 43, and selects the basic setting values according to the program genre group. When the function is clearly invalid, the setting value determining unit 42 determines this basic setting value as a setting value. On the other hand, when the function is clearly invalid, the set value determination unit 42 determines a value obtained by performing a predetermined arithmetic process or a replacement process on the basic set value as a set value. The specific setting value determination process by the setting value determination unit 42 will be described later.

The superimposed image generation unit 45 superimposes the superimposed image on the image generated from the video data and displays it on the display unit 2 based on the selected channel, volume, current time, subtitles, etc. stored in the memory 43. Generate. The superimposed image is an image showing the selected channel, volume, current time, subtitles, and the like with characters or symbols. When the function is clearly effective in the information processing apparatus 1, the superimposed image generation unit 45 generates a superimposed image for displaying characters or symbols clearly indicating that the function is effective on the screen.

<Reception processing>
FIG. 2 shows a reception process until the video data, the audio data, and the EPG program information are separated.

First, the antenna 10 receives the radio wave of the television broadcast being broadcast (S100).

The tuner 11 extracts a received signal, which is an analog signal, by selecting a transmission channel from the signal received by the antenna 10, and outputs the received signal to the demodulation unit 12 (S110).

The demodulation unit 12 demodulates the received signal into a digital signal by demodulating the received signal by OFDM (Orthogonal Frequency Division Multiplexing) (S120).

The error correction unit 13 performs error correction on the signal demodulated into a digital signal, and outputs the TS packet after the error correction to the data separation unit 14 (S130).

The data separation unit 14 separates the video data, audio data, and EPG program information included in the TS packet, and outputs them to the video data acquisition unit 21, the audio data acquisition unit 31, and the program information acquisition unit 41, respectively (S140). ).

<Set value determination process>
FIG. 3 is a flowchart showing a set value determination process mainly performed by the program information acquisition unit 41 and the set value determination unit 42.

First, the program information acquisition unit 41 acquires EPG program information from the data separation unit 14 (S200). The program information acquisition unit 41 stores the acquired EPG program information in the memory 43.

Next, the setting value determination unit 42 refers to the correspondence between the program genre stored in the memory 43 and the program genre group, and based on the program genre included in the program information stored in the memory 43, the program genre group. Is determined (S210).

As shown in FIG. 6, there are 13 types of program genres included in the EPG program information. These 13 program genres are welfare, drama, documentary / education, hobbies / education, movies, sports, anime / special effects, news / news, variety, information / wide shows, theater / performances, music, and others. ..

The memory 43 stores a table as shown in FIG. 6 for classifying the 13 program genres into 7 program genre groups. As shown in FIG. 6, the seven program genre groups for image quality adjustment are vivid, standard, movie, sports, animation, news, and music. The seven program genre groups for audio adjustment are dynamic, standard, movie, sports, anime, news, and music. As shown in FIG. 6, the welfare of the program genre corresponds to the "vivid" of the program genre group for image quality adjustment and the "dynamic" of the program genre group for audio adjustment. Program genre drama, documentary / education, hobbies / education, and others correspond to the "standard" of program genre groups for image quality adjustment and audio adjustment. The program genres of movies, sports, and animation / special effects correspond to the program genre groups "movie", "sports", and "animation" for image quality adjustment and sound adjustment, respectively. Program genre news / coverage, variety, information / wide shows correspond to "news" in the program genre group for image quality adjustment and audio adjustment. The theater / performance and music of the program genre corresponds to "music" of the program genre group for image quality adjustment and audio adjustment. The number of program genres is not limited to the above 13 and may be changed arbitrarily. The number of program jean groups may be arbitrarily changed as a number smaller than that of the program genre.

Next, the setting value determining unit 42 refers to the basic setting values for image quality adjustment and audio adjustment stored in the memory 43, and selects the basic setting values according to the program genre group (S211).

As shown in FIG. 7, the memory 43 stores a table of basic setting values for image quality adjustment, which is predetermined for each program genre group. Further, the memory 43 stores a table of basic setting values for audio adjustment, which is predetermined for each program genre group, as shown in FIG.

As shown in FIG. 7, the following basic setting values for image quality adjustment are stored in the memory 43. The variable range of the setting values of each image quality adjustment item is 0 to 100 for brightness, sharpness, brilliance, contrast, and backlight, 3 levels of low / medium / high color temperature, and -50 for hue. ~ +50, 4 levels of noise reduction off / weak / medium / strong, 3 levels of gamma value 2.2 / 2.0 / 1.8, 4 levels of adaptive gradation correction off / weak / medium / strong It is a stage.

The basic setting values of brightness, sharpness, brilliance, contrast, color temperature, backlight, hue, noise reduction, gamma value, and adaptive gradation correction corresponding to each program genre group are as follows. When the program genre group is "Vivid", brightness: 50, sharpness: 60, vividness: 75, contrast: 55, color temperature: high, backlight: 100, hue: ± 0, noise reduction: strong, Gamma value: 2.2, adaptive gradation correction: strong. In addition, the basic setting value of the program genre group "vivid" is also used as the store setting when it is installed in the sales floor of a home appliance mass retailer or the like.

When the program genre group is "Standard", brightness: 50, sharpness: 50, vividness: 60, contrast: 50, color temperature: medium, backlight: 70, hue: ± 0, noise reduction: strong, Gamma value: 2.0, adaptive gradation correction: medium. When the program genre group is "movie", brightness: 50, sharpness: 30, vividness: 45, contrast: 50, color temperature: low, backlight: 60, hue: ± 0, noise reduction: medium, Gamma value: 2.0, adaptive gradation correction: weak. When the program genre group is "Sports", brightness: 50, sharpness: 60, brilliance: 85, contrast: 55, color temperature: high, backlight: 100, hue: ± 0, noise reduction: medium, Gamma value: 2.2, adaptive gradation correction: strong. When the program genre group is "Anime", brightness: 50, sharpness: 50, vividness: 95, contrast: 50, color temperature: medium, backlight: 70, hue: ± 0, noise reduction: strong, Gamma value: 2.0, adaptive gradation correction: weak. When the program genre group is "News", brightness: 50, sharpness: 60, vividness: 60, contrast: 50, color temperature: medium, backlight: 90, hue: ± 0, noise reduction: strong, Gamma value: 2.2, adaptive gradation correction: medium. When the program genre group is "Music", brightness: 50, sharpness: 60, vividness: 75, contrast: 55, color temperature: medium, backlight: 100, hue: ± 0, noise reduction: medium, Gamma value: 2.0, adaptive gradation correction: strong. When the program genre group is "eco", brightness: 50, sharpness: 50, vividness: 60, contrast: 55, color temperature: medium, backlight: 50, hue: ± 0, noise reduction: medium, Gamma value: 2.2, adaptive gradation correction: medium. The basic setting value for which the program genre group is "eco" is used as the setting at the time of shipment.

As shown in FIG. 8, the following basic setting values for voice adjustment are stored in the memory 43. The variable range of the set values of the bass range, the midrange range, and the treble range is 0 to 100.

The basic setting values for the bass range, midrange range, and treble range corresponding to each program genre group are as follows. When the program genre group is "dynamic", the bass range is 75, the middle range is 50, and the treble range is 75. The basic setting value of the program genre group "Dynamic" is also used as the store setting when it is installed in the sales floor of a home electronics mass retailer or the like.

When the program genre group is "standard", the bass range is 55, the middle range is 50, and the treble range is 55. The basic setting value for which the program genre group is "standard" is also used as the setting at the time of shipment.

When the program genre group is "movie", the bass range is 60, the middle range is 50, and the treble range is 55. When the program genre group is "sports", the bass range is 60, the middle range is 50, and the treble range is 70. When the program genre group is "animation", the bass range is 55, the middle range is 50, and the treble range is 55. When the program genre group is "news", the bass range is 50, the middle range is 50, and the treble range is 50. When the program genre group is "music", the bass range is 80, the middle range is 50, and the treble range is 75.

Further, the memory 43 stores basic setting values for image quality adjustment and audio adjustment that can be arbitrarily set by the user. In FIGS. 7 and 8, the portions described as user 1 and user 2 are initial values of basic setting values that can be arbitrarily set by the user.

After selecting the basic setting value by the above process, the setting value determining unit 42 refers to the information stored in the memory 43 and clearly confirms whether or not the function is effective (S220). If the function is clearly disabled (N in S220), the basic set value is determined as the set value (S250). On the other hand, if the function is clearly enabled (Y in S220), the set value determining unit 42 performs arithmetic processing or replacement processing on the basic set value to generate a set value (S221).

As shown in FIGS. 7 and 8, the memory 43 stores in advance the contents of the calculation and the replacement process for the image quality adjustment and the sound adjustment, which are clearly used when the function is enabled.

As shown in FIG. 7, regarding the image quality adjustment, the calculation and the replacement process when the function is clearly enabled are set as follows for the setting values of the respective image quality adjustment items. That is, the brightness is 50, the contrast is 55, the color temperature is medium, the backlight is 100, the hue is ± 0, the noise reduction is strong, the gamma value is 1.8, and the adaptive gradation correction is performed. Are strongly replaced by each. Further, the set value for adjusting the sharpness is determined by calculating by the basic set value × 2.0, and the upper limit value is set to 100. The set value for adjusting the vividness is determined by calculating the basic set value × 1.8, and the upper limit value is 100.

As shown in FIG. 8, regarding the set value of the voice adjustment, the calculation and the replacement process when the function is clearly enabled are set as follows for each range. That is, the set value in the midrange is replaced with 50. The bass range setting value is determined by calculating the basic setting value × 1.1, and the upper limit value is 100. The treble range setting value is determined by calculating the basic setting value × 1.3, and the upper limit value is 100.

Among the setting values generated by the above arithmetic processing or replacement processing, the setting value determining unit 42 determines whether the generated setting value is larger than the upper limit value (S230) or smaller than the lower limit value for the item to be arithmetically processed. (S240) is confirmed. When the generated set value is larger than the upper limit value (Y in S230), the set value determination unit 42 determines the upper limit value as the set value (S231, S250), and the generated set value is smaller than the lower limit value. In that case (Y in S240), the lower limit value is determined as the set value (S241, S250). In the calculation process of the present embodiment, the lower limit value is not set, and the set value after the calculation may not be smaller than the lower limit value, but the lower limit value can be set. Further, the calculation process may adopt a method in which the setting value after the calculation is smaller than the basic setting value, such as the basic setting value × 0.5.

On the other hand, if the generated set value is between the upper limit value and the lower limit value (N in S230, N in S240), the set value determination unit 42 sets the set value after the arithmetic processing or the replacement process. Determined as a setting value for image quality adjustment and audio adjustment. The set value determination unit 42 determines the set value by the above processing (S250).

<Example of setting value determination process>
Here, the set value determination process will be described with reference to examples. Here, the case where the program genre is "drama" and the function is clearly effective will be described.

The setting value determination unit 42 acquires the program information stored in the memory 43 (S200), and confirms that the program genre is “drama”. Next, the setting value determination unit 42 refers to the memory 43, and determines the program genre group corresponding to the program genre “drama” stored in the memory 43 as “standard” (S210).

Next, the setting value determination unit 42 confirms the memory 43, and as basic setting values for image quality adjustment when the program gamma group is "standard", brightness: 50, sharpness: 50, vividness: 60, contrast: 50, color temperature: medium, backlight: 70, hue: ± 0, noise reduction: strong, gamma value: 2.0, adaptive gradation correction: medium are selected (S211). Further, the setting value determination unit 42 confirms the memory 43, and selects bass range: 55, midrange range: 50, and treble range: 55 as basic setting values for audio adjustment when the program genre group is "standard". .. Next, the set value determination unit 42 refers to the memory 43 and clearly confirms that the function is effective (Y in S220). Next, the set value determination unit 42 performs arithmetic processing and replacement processing when the function is clearly valid. By the replacement process, the set value determination unit 42 makes the brightness 50, the contrast 55, the color temperature medium, the backlight 100, the hue ± 0, and the noise reduction strong for each set value. , The gamma value is replaced with 1.8, and the adaptive gradation correction is strongly replaced (S221). Further, the set value determination unit 42 sets the sharpness set value to 100, which is the basic set value of 50 × 2.0, by arithmetic processing (S221). Further, the setting value determination unit 42 tries to set the setting value of the vividness to 108 of the basic setting value of 60 × 1.8 by arithmetic processing, but since it is larger than the upper limit value of 100 (Y in S230), the vividness The set value is 100, which is the upper limit (S231). By this processing, the setting value determination unit 42 sets the setting values of brightness, sharpness, brilliance, contrast, color temperature, backlight, hue, noise reduction, gamma value, and adaptive gradation correction to 50 and 100, respectively. , 100, 55, medium, 100, ± 0, strong, 1.8, and strong (S250).

Further, the setting value determination unit 42 confirms the memory 43, and selects bass range: 55, midrange range: 50, and treble range: 55 as basic setting values for audio adjustment when the program jean group is “standard”. S211). Next, the set value determination unit 42 refers to the memory 43 and clearly confirms that the function is effective (Y in S220). Next, the set value determination unit 42 performs arithmetic processing and replacement processing when the function is clearly valid. The set value determination unit 42 replaces the set value in the midrange with 50 by the replacement process (S221). Further, the set value determination unit 42 sets the set value in the bass range to 60 (rounded down) of the basic set value 55 × 1.1 by arithmetic processing (S221). Further, the set value determination unit 42 sets the set value in the high frequency range to 71 (rounded down) of the basic set value 55 × 1.3 by arithmetic processing (S221). By this process, the set value determination unit 42 determines the set values of the bass range, the midrange range, and the treble range to be 60, 50, and 71, respectively (S250).

<Image quality adjustment>
FIG. 4 is a flowchart showing the image quality adjustment performed by the image quality adjustment unit 22.

First, the image quality adjustment unit 22 acquires video data from the video data acquisition unit 21 (S300). Next, the image quality adjusting unit 22 acquires the setting value for image quality adjustment obtained by the above setting value determining process from the setting value determining unit 42 (S310).

Next, the image quality adjusting unit 22 performs adaptive gradation correction according to the set value (S320). In the adaptive gradation correction, the gradation in the entire image of one frame or the image of a plurality of frames is confirmed, and the gradation is dynamically corrected according to a predetermined standard. As a result, the gradation in the image of one frame or a plurality of frames is corrected, and the image data in which the gradation is strengthened or weakened can be corrected.

Next, the image quality adjusting unit 22 corrects the image of the video data by changing the gamma value according to the set value (S330). This makes it possible to adjust the gradation of the displayed image.

Next, the image quality adjustment unit 22 performs image quality adjustment other than adaptive gradation correction and change of gamma value according to the set value (S340). Specifically, the brightness, sharpness, brilliance, contrast, color temperature, backlight brightness, and hue of the image data are adjusted. In addition, noise reduction is performed on the image data to reduce noise.

Next, the image quality adjusting unit 22 outputs the image data for which the above image quality adjustment has been performed to the image superimposing unit 23 as output image data (S350).

<Voice adjustment>
FIG. 5 is a flowchart showing the voice adjustment performed by the voice adjustment unit 32.

First, the voice adjustment unit 32 acquires voice data from the voice data acquisition unit 31 (S400). Next, the voice adjustment unit 32 acquires the set value for voice adjustment obtained by the above-mentioned set value determination process from the set value determination unit 42 (S410).

Next, the voice adjustment unit 32 adjusts the voice according to the set value (S420). Specifically, the audio data is divided into bass, midrange, and treble data, and the volume of the audio in each range is increased or decreased according to the set value. In voice adjustment, when the set value is 50, the volume of the range is not changed, when the set value is larger than 50, the volume of the range is increased according to the size of the set value, and when the set value is smaller than 50, the volume of the range is increased. Decrease the volume of the range according to the size of the set value.

Next, the voice adjustment unit 32 outputs the voice data obtained by performing the above voice adjustment to the speaker 3 as output image data (S430).

<2. Modification example>
The information processing apparatus 1 of the above embodiment may be modified as follows.

In the information processing apparatus 1, both the image quality adjustment and the sound adjustment are applied, but only one of the image quality adjustment and the sound adjustment may be applied.

The image quality adjustment and the sound adjustment in consideration of the program genre in the information processing apparatus 1 may be performed only in a predetermined operation mode and may not be performed in other cases. In this case, except for the predetermined operation mode, normal image quality adjustment and audio adjustment are performed without considering the program genre, or image quality adjustment and audio adjustment are not performed.

<3. Features of information processing device 1>
The information processing apparatus 1 which is one aspect of the present invention has the following features.

In the above information processing apparatus 1, since the image quality adjustment including at least one of the adaptive gradation correction and the gamma value change is performed on the video data based on the set value, the adaptive gradation correction or the gamma value is performed. It is possible to display an image that is easier for the user to see on the display unit as compared with the mode in which the change is not made.

Further, since the information processing apparatus 1 is configured to perform voice adjustment based on the set value, it is possible to perform voice adjustment suitable for the program. As a result, it is possible to output the optimum image and sound for the program to be viewed, and it is possible to provide an environment in which the user can further enjoy the content.

Further, in the information processing apparatus 1, 13 program genres included in the program information are grouped into 7 program genre groups, and set values are determined. Therefore, it is not necessary to prepare setting values corresponding to all 13 program genres, and it is possible to more easily perform image quality adjustment and audio adjustment. This makes it possible to reduce the processing load on the information processing device 1 or reduce the storage capacity of the memory 43 included in the information processing device 1.

Further, in the information processing apparatus 1, when the function is clearly enabled, the set value is a value obtained by performing arithmetic processing or replacement processing on a basic setting value predetermined for each program genre group. As a result, it is possible to output an easy-to-see image and an easy-to-listen sound according to the viewer and the type of the program to be viewed, as compared with a mode in which the image and the sound are uniformly emphasized with respect to the basic setting value. Can be done.

Further, in the information processing apparatus 1, when the set value obtained by the arithmetic processing is larger than the upper limit value or smaller than the lower limit value, the upper limit value or the lower limit value is set as the set value, respectively. As a result, it is possible to prevent the set value from causing a problem in the processed image or sound as a result of performing arithmetic processing or replacement processing on the basic setting value.

<4. Supplementary information>
The specific embodiments of the present invention have been described above. These embodiments are merely specific examples as one configuration example and one operation example of the present invention, and the scope of the present invention is not limited to these embodiments and can be grasped by those skilled in the art based on the same technical idea. It is widely interpreted to the extent that it is.

1 ... Information processing device 10 ... Antenna 11 ... Tuner 12 ... Demodition unit 13 ... Error correction unit 14 ... Data separation unit 21 ... Video data acquisition unit 22 ... Image quality adjustment unit 23 ... Image superimposition unit 24 ... Image output unit 31 ... Audio data Acquisition unit 32 ... Audio adjustment unit 33 ... Audio output unit 41 ... Program information acquisition unit 42 ... Set value determination unit 43 ... Memory 44 ... Operation reception unit 45 ... Superimposed image generation unit 50 ... Control unit 2 ... Display unit 3 ... Speaker

Claims (7)

The video data acquisition unit that acquires video data, and
The program information acquisition department that acquires program information, and
A setting value determination unit that determines a setting value based on the program information,
Based on the set value, the video data is subjected to image quality adjustment including at least one of adaptive gradation correction for dynamically correcting the contrast of the video and change of the gamma value to generate output image data. Image quality adjustment unit and
An image output unit for outputting the output image data is provided.
Information processing equipment. The voice data acquisition unit that acquires voice data, and
A voice adjustment unit that generates output voice data by performing predetermined voice adjustment to the voice data based on the set value.
A voice output unit for outputting the output voice data, and the like.
The information processing apparatus according to claim 1. The set value is determined according to a number of groups classified based on the program information, which is smaller than the number of program types indicated by the program information.
The information processing apparatus according to claim 1 or 2. The set value determination unit determines a value obtained by performing a predetermined arithmetic process or a predetermined replacement process on a predetermined basic set value as the set value.
The information processing apparatus according to claim 1 or 2. When the set value is larger than a predetermined upper limit value, the set value determining unit determines the upper limit value as the set value.
The information processing apparatus according to claim 4. When the set value is smaller than a predetermined lower limit value, the set value determining unit determines the lower limit value as the set value.
The information processing apparatus according to claim 4 or 5. An information processing method for processing video by an information processing device, wherein the information processing device is
Steps to acquire video data and
Steps to get program information and
The step of determining the set value based on the program information and
Based on the set value, the video data is subjected to image quality adjustment including at least one of adaptive gradation correction for dynamically correcting the contrast of the video and change of the gamma value to generate output image data. Steps and
Including the step of outputting the output image data.
Information processing method.

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