Methods and apparatus to detect commercial advertisements associated with media presentations are disclosed. An example method involves receiving a video frame and detecting a change in box-formatting between the video frame and a subsequent video frame. A transition between the video frame and the subsequent video frame is indicated as a commercial advertisement transition based on the detected change in box-formatting.

In one aspect, an example method includes (i) determining, by a playback device, a loudness level of first media content that the playback device is receiving from a first source; (ii) comparing, by the playback device, the determined loudness level of the first media content with a reference loudness level indicated by a loudness level profile for the first media content; (iii) determining, by the playback device, a target volume level for the playback device based on a difference between the determined loudness level of the first media content and the reference loudness level; and (iv) while the playback device presents second media content from a second source in place of the first media content, adjusting, by the playback device, a volume of the playback device toward the target volume level.

A de-interlacing processing method, a de-interlacing processing device and a computer-readable storage medium are provided. The method includes acquiring image content characteristic information of a pixel point to be interpolated; and determining according to the image content characteristic information whether a de-interlacing algorithm based on motion adaptive or a de-interlacing algorithm based on motion compensation is adopted to perform de-interlacing processing.

An operational amplifier applicable to a display device is provided. The operational amplifier having multiple output stages. The operational amplifier includes an input stage, an output stage selection module and a plurality of output stages. The output stage selection module is coupled to the input stage. Each of the output stages is coupled to the output stage selection module and is coupleable to drive a corresponding one of a plurality of loads. The output stage selection module is configured to selectively couple or discouple each of the output stages respectively to the input stage according to a plurality of selection signal. Furthermore, a load driving apparatus and a grayscale voltage generating circuit are also provided.

The various implementations described herein include methods, devices, and systems for detecting motion and persons. In one aspect, a method is performed at a smart home system that includes a video camera, a server system, and a client device. The video camera captures video and audio, and wirelessly communicates, via the server system, the captured data to the client device. The server system: (1) receives and stores the captured data from the video camera; (2) determines whether an event has occurred, including detected motion; (3) in accordance with a determination that the event has occurred, identifies video and audio corresponding to the event; and (4) classifies the event. The client device receives information indicative of the identified events, displays a user interface for reviewing the video and audio stored by the remote server system, and displays the at least one classification for the event.

An image pickup device which captures sound and a moving image prevents deterioration in a reproduction quality. A scene change detector detects a frame at the time of a scene change from among a plurality of frames imaged at a predetermined frame rate as a detection frame. A frame rate converting unit converts a frame rate of the frame imaged outside a detection to a lower frame rate. A video reproduction time setting unit sets a reproduction time when reproduction is performed at the lower frame rate as a video reproduction time. An audio reproduction time setting unit sets an audio reproduction time at constant intervals for sounds recorded at constant intervals outside the detection period and sets an audio reproduction time in synchronization with the video reproduction time corresponding to the detection frame relative to sound recorded in the detection period.

Embodiments of present application relate to a method for detecting terminal static layer information, a terminal and a television. Based on the fact that a static layers in the terminal such as the OSD display layer and third-party application are managed as a whole by the terminal layer management module, this embodiment sets forth that: a current topmost layer is determined according to number information of each layer in a terminal layer management module; then a pixel value of a preset region in the topmost layer is obtained; analysis is performed on the pixel value in the preset region, and it is determined whether the pixel value of the preset region is different from a target pixel value. If the pixel value of the preset region is different from the target pixel value, then it is determined that there is image content in the topmost layer.

Embodiments of present application relate to a method for detecting terminal static layer information, a terminal and a television. Based on the fact that a static layers in the terminal such as the OSD display layer and third-party application are managed as a whole by the terminal layer management module, this embodiment sets forth that: a current topmost layer is determined according to number information of each layer in a terminal layer management module; then a pixel value of a preset region in the topmost layer is obtained; analysis is performed on the pixel value in the preset region, and it is determined whether the pixel value of the preset region is different from a target pixel value. If the pixel value of the preset region is different from the target pixel value, then it is determined that there is image content in the topmost layer.

One embodiment of the present invention sets forth a technique for detecting a shot change in a video. The technique includes calculating a first plurality of difference values for pixel blocks included in a first video frame and a second video frame and calculating a first cumulative distribution function (CDF) based on the first plurality of difference values. The technique further includes calculating a second plurality of difference values for pixel blocks included in a first plurality of video frames that is contiguous with the first video frame and calculating a second CDF based on the second plurality of difference values. The technique further includes comparing the first CDF to the second CDF to detect a shot change.

An example electronic device may include a memory, an image sensor, and at least one processor operatively connected to the memory and the image sensor, wherein the memory is configured to store instructions which, when executed by the at least one processor, cause the electronic device to acquire, through the image sensor, a plurality of images including first images having a first size and at least one second image having a second size larger than the first size, acquire a first synthesis image based on the first images, acquire a first moving object portion from the first synthesis image, based on synthesis area information including at least one of moving object location information or background location information, identify a second moving object portion in the at least one second image, based on the synthesis area information, and acquire a second synthesis image by replacing the second moving object portion by the first moving object portion, and other embodiments are possible.