ITTIAM SYSTEMS (P) LIMITED
ITTIAM SYSTEMS (P) LIMITED Patent applications | ||
Patent application number | Title | Published |
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20140114654 | METHOD AND SYSTEM FOR PEAK LIMITING OF SPEECH SIGNALS FOR DELAY SENSITIVE VOICE COMMUNICATION - A method and system for peak limiting of speech signals for delay sensitive voice communication is disclosed. In an embodiment, a position of a sample with highest magnitude within a current block of samples is determined. Further, a peak gain to be applied for the current block of samples to bring down the highest magnitude to a predetermined threshold value is determined. Furthermore, a gain delta by which an old gain is updated to the peak gain is computed. Then, a gain factor is computed for the current block of samples based on the position of the sample with highest magnitude and the gain delta. Subsequently, the gain factor is set to a predetermined minimum gain factor when the computed gain factor is less than the predetermined minimum gain factor. In addition, gain is applied to the current block of samples using the gain factor. | 04-24-2014 |
20140105498 | SYSTEM AND METHOD FOR LOW COMPLEXITY CHANGE DETECTION IN A SEQUENCE OF IMAGES THROUGH BACKGROUND ESTIMATION - A method for low complexity change detection in a sequence of images using configurable block sizes is disclosed. In one embodiment, a first change detection map is generated by performing change detection based on configurable block sizes between a current image and one of an estimated first background image and a previous image. The first change detection map classifies each block as changed or unchanged. The selection between the previous image and the estimated background image for use in change detection is done using a confidence estimate, which is updated both at the low level and at the end of a high-level change analysis. In another embodiment, an estimated second background image is used in addition to the estimate first background image to help quickly adapt when a stationary object starts moving or when a scene object becomes stationary. | 04-17-2014 |