1
Daniel N Nikovski, Ajay Divakaran, Regunathan Radhakrishnan, Kadir A Peker: Detecting and diagnosing faults in HVAC equipment. Mitsubishi Electric Research Laboratories, Dirk Brinkman, Clifton D Mueller, Gene V Vinokur, October 28, 2008: US07444251 (83 worldwide citation)

A method and system detects and diagnoses faults in heating, ventilating and air conditioning (HVAC) equipment. Internal state variables of the HVAC equipment are measured under external driving conditions. Expected internal state variables are predicted for the HVAC equipment operating under the ex ...


2
Ajay Divakaran, Kadir A Peker, Huifang Sun: Method for summarizing a video using motion and color descriptors. Mitsubishi Electric Research Laboratories, Dirk Brinkman, February 24, 2004: US06697523 (42 worldwide citation)

A method extracts an intensity of motion activity from shots in a compressed video. The method then uses the intensity of motion activity to segment the video into easy and difficult segments to summarize. Easy to summarize segments are represented by any frames selected from the easy to summarize s ...


3
Kadir A Peker: Pattern discovery in multi-dimensional time series using multi-resolution matching. Mitsubishi Electric Research Laboratories, Dirk Brinkman, Andrew J Curtin, September 5, 2006: US07103222 (31 worldwide citation)

A method discovers patterns in unknown multi-dimensional data. A time-series of the multi-dimensional data is generated and a point cross-distance matrix is constructed by self-correlating the time-series. All minimum cost paths in the point cross-distance matrix are located at multiple time resolut ...


4
Ajay Divakaran, Kadir A Peker, Huifang Sun: Descriptor for spatial distribution of motion activity in compressed video. Mitsubishi Electric Research Laboratories, Dirk Brinkman, July 29, 2003: US06600784 (25 worldwide citation)

A method describes motion activity in a video sequence. A motion activity matrix is determined for the video sequence. A threshold for the motion activity matrix is determined. Connected regions of motion vectors at least equal to the threshold are identified and measured for size. A histogram of th ...


5
Ajay Divakaran, Ziyou Xiong, Regunathan Radhakrishnan, Kadir A Peker, Koji Miyahara: Method for detecting short term unusual events in videos. Mitsubishi Electric Research Laboratories, Dirk Brinkman, Clifton D Mueller, Gene V Vinokur, February 5, 2008: US07327885 (22 worldwide citation)

A method detects short term, unusual events in a video. First, features are extracted features from the audio and the video portions of the video. Segments of the video are labeled according to the features. A global sliding window is applied to the labeled segments to determine global characteristi ...


6
Ajay Divakaran, Kadir A Peker: Blind summarization of video content. Mitsubishi Electric Research Laboratories, Dirk Brinkman, Clifton D Muellen, Gene V Vinokur, November 28, 2006: US07143352 (20 worldwide citation)

A method summarizes unknown content of a video. First, low-level features of the video are selected. The video is then partitioned into segments according to the low-level features. The segments are grouped into disjoint clusters where each cluster contains similar segments. The clusters are labeled ...


7
Ajay Divakaran, Regunathan Radhakrishnan, Kadir A Peker: Method for summarizing a video using motion descriptors. Mitsubishi Electric Research Laboratories, Dirk Brinkman, Andrew J Curtis, September 19, 2006: US07110458 (12 worldwide citation)

A method measures an intensity of motion activity in a compressed video. The intensity of the motion activity is used to partition the video into segments of equal cumulative motion activity. Key-frames are then selected from each segments. The selected key-frames are concatenated in temporal order ...


8
Kadir A Peker, Ajay Divakaran, Huifang Sun: Adaptively processing a video based on content characteristics of frames in a video. Mitsubishi Electric Research Laboratories, Dirk Brinkman, Andrew J Curtin, February 21, 2006: US07003154 (9 worldwide citation)

A system and method for temporally processing an input video including input frames. Each frame has an associated frame play time, and the input video has a total input video play time that is a sum of the input frame play times of all of the input frames. Each of the input frames is classified acco ...


9
Romain Cabasson, Kadir A Peker, Ajay Divakaran: Summarizing videos using motion activity descriptors correlated with audio features. Mitsubishi Electric Research Laboratories, Dirk Brinkman, Andrew J Curtin, October 18, 2005: US06956904 (8 worldwide citation)

A method for summarizing a video first detects audio peaks in a sub-sampled audio signal of the video. Then, motion activity in the video is extracted and filtered. The filtered motion activity is quantized to a continuous stream of digital pulses, one pulse for each frame. If the motion activity is ...


10
Kadir A Peker, Ajay Divakaran: Method and system for segmenting videos using face detection. Mitsubishi Electric Research Laboratories, Dirk Brinkman, Gene Vinokur, June 30, 2009: US07555149 (6 worldwide citation)

A method generates a summary of a video. Faces are detected in a plurality of frames of the video. The frames are classified according to a number of faces detected in each frame and the video is partitioned into segments according to the classifications to produce a summary of the video. For each f ...



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