Abstract: Technologies are shown for content data transmission bandwidth management involving receiving content data for a mobile device, transmitting the content data at an initial bit rate, and introducing a delay in the communication channel to activate an adaptive bit rate (ABR) capability in the mobile device. The technologies can include receiving feedback pertaining to content data consumption in the mobile device and adjusting the delay in the communication channel to increase or decrease the bit rate of the ABR capability responsive to the feedback. The technologies can include determining an initial resolution of the content data during a trial period during transmitting content data to the mobile device and adjusting the delay in the communication channel to increase or decrease the bit rate of the ABR capability in the mobile device to a target bit rate.

Abstract: Methods, systems and apparatuses may include technology that compresses a central region of an image to a central level of detail and compresses one or more peripheral regions of the image to one or more peripheral levels of detail that are less than the central level of detail, wherein the central region and the peripheral region(s) are fixed. Additionally, the technology may send the compressed central region and the compressed peripheral region(s) to a remote display. In one example, the central region and the peripheral region(s) are independent of eye movement with respect to the remote display.

Abstract: A video encoder receives a minimum number of bits (MIN) and a maximum number of bits (MAX) to be used to encode a segment of a sequence of image frames, the segment including a set of pictures contained in the sequence of image frames. The video encoder encodes the set of pictures using a total number of bits greater than the minimum number of bits (MIN), and not exceeding the maximum number of bits (MAX). Thus, the transmission bit-rate of the video encoder can be constrained to lie within a maximum and minimum rate. In an embodiment, the constraints are enforced over relatively short time intervals.

Abstract: Techniques are disclosed for coding high dynamic range (HDR) data. According to such techniques, HDR data may be converted to a domain of uniform luminance data. The uniform domain data may be coded by motion compensated predictive coding. The HDR data also may be coded by motion compensated predictive coding, using a coding parameter that is derived from a counterpart coding parameter of the coding of the uniform domain data. In another technique, HDR data may be coded using coding parameters that are derived from HDR domain processing but distortion measurements may be performed in a uniform domain.

Abstract: A video encoder receives a minimum number of bits (MIN) and a maximum number of bits (MAX) to be used to encode a segment of a sequence of image frames, the segment including a set of pictures contained in the sequence of image frames. The video encoder encodes the set of pictures using a total number of bits greater than the minimum number of bits (MIN), and not exceeding the maximum number of bits (MAX). Thus, the transmission bit-rate of the video encoder can be constrained to lie within a maximum and minimum rate. In an embodiment, the constraints are enforced over relatively short time intervals.

Abstract: The invention relates to a method for improving the quality of an image or video sequence subjected to recoding, wherein the image is decoded and subsequently re-encoded. The method involves detecting, following the image decoding, whether the image has undergone any spatial displacement; in the event that it has, compensating for such spatial displacement by arranging the image on an image with a higher resolution such that the spatial position of the blocks of the higher-resolution image coincides with the spatial position of the blocks of the image before decoding; and adding information about the cropping to be applied to the higher-resolution image for a subsequent decoder to recover the image with its original resolution.

Abstract: To provide an image encoding device that can record desired hours of encoded data in a recording medium having a predetermined storage capacity, in a VBR encoding system. An image encoding device includes an image encoding unit that encodes a plurality of sequentially input images to generate a plurality of encoded data that configures video data, an average image complexity calculation unit that calculates average image complexity of complexity of the input images in a fluctuation cycle, based on the plurality of encoded data, and a code amount control unit that controls a code amount of the encoded data generated in the image encoding unit based on the average image complexity.

Abstract: A method and system of image compression with random access capability are provided. The method includes segmenting an image into blocks, each block including predefined samples; transforming the predefined samples into a frequency domain; applying a first quantization factor to the transformed predefined samples; determining whether application of the first quantization factor results in a bit count that is within a tolerance range of an allowable bit count; and adaptively computing a second quantization factor in response to determining that the bit count is not within the tolerance range of the allowable bit count.