There are described methods and apparatus for scrambling digital content, such as video or audio content, by dividing the digital content into blocks set out in an original arrangement, and reordering the blocks from the original arrangement to a scrambled arrangement. Additional manipulation transforms such as rotations and reflections may be applied to individual blocks. A subsequent compression step may then be carried out. Methods and apparatus for carrying out corresponding descrambling of digital content are also described.

In one embodiment, a method for preventing a difference attack on watermarked video content is implemented on at least one computing device and includes: manipulating values of a set of pixels to embed a forensic watermark in at least one video frame in a video content item, where the manipulating is in accordance with a given magnitude of change in the values, and introducing random noise to the at least one video frame, where the random noise is random noise of the given magnitude.

A terminal apparatus according to an embodiment includes a solid-state imaging element and a first communication unit. The solid-state imaging element includes an image sensor, an image processing unit, and an output interface. The image sensor converts received light into an image. The image processing unit detects a specific object in the image. The output interface outputs the image. The first communication unit transmits the image output from the output interface. The information processing apparatus includes a second communication unit and a processor. The processor receives an image transmitted from the terminal apparatus with the second communication unit. When the image received with the second communication unit is an image in which the image processing unit has detected a specific object, the processor performs mask processing of masking the specific object.

An information recording apparatus, comprising: an information input unit configured to acquire audio data and/or image data; a tamper prevention unit that applies tamper prevention processing to the audio data and/or image data; and a controller that records, in a recording unit, both audio data and/or image data to which the tamper prevention processing is applied by the tamper prevention unit and audio data and/or image data to which the tamper prevention processing is not applied, if a predetermined condition is satisfied.

Systems and methods for providing privacy control for digital capture of a recording include identifying a person within a digital capture that is a recording of a person within an environment based on received information regarding the person. A disposition tag is associated with an identified person in the recording. The disposition tag references a privacy control action to take according to privacy constraints for the person. Coordinates in the recording where the privacy control action is to be applied are determined.

A system and method for fine-grained privacy control of image and video recordings uses a model-based approach to solve privacy issues. The method includes steps of: receiving a digital capture of a subject bound by privacy constraints; receiving information regarding the subject, the environment, and the privacy constraints; using the information to generate a model image of the subject within the environment; associating a disposition tag with an appearance of the subject in the model image; and comparing the model image with the digital capture to determine coordinates in the recording where a privacy control action, such as a blocking action, should be applied.

A method of modifying the output of an output device is provided. A first code, associated with a first recipient party, is received and used to generate, within the output device, a second code, the second code containing encoded data identifying the first recipient party and instructions for activating an additional functionality of the output device. The additional functionality is activated in accordance with the instructions contained in the second code. The output of the output device is modified according to data encoded in the second code, to encode a third code in the output of the output device, the third code including an ID code associated with the first recipient party.

A method for recording camera image data on an edge server comprises the steps recording a scene by a motion picture camera and generating camera image data that represent the scene by the motion picture camera, and transmitting the camera image data to the edge server. However, in a data transmission path from the motion picture camera to the edge server, a buffer memory device comprising a non-volatile data memory is arranged between the motion picture camera and the edge server, wherein the camera image data are first written to the data memory of the buffer memory device and the camera image data written to the data memory are then transmitted from the buffer memory device to the edge server.