{"id":"https://openalex.org/W2577922271","doi":"https://doi.org/10.1109/ipta.2016.7820984","title":"Optimized fast Walsh-Hadamard transform on OpenCL-GPU and OpenCL-CPU","display_name":"Optimized fast Walsh-Hadamard transform on OpenCL-GPU and OpenCL-CPU","publication_year":2016,"publication_date":"2016-12-01","ids":{"openalex":"https://openalex.org/W2577922271","doi":"https://doi.org/10.1109/ipta.2016.7820984","mag":"2577922271"},"language":"en","primary_location":{"id":"doi:10.1109/ipta.2016.7820984","is_oa":false,"landing_page_url":"https://doi.org/10.1109/ipta.2016.7820984","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2016 Sixth International Conference on Image Processing Theory, Tools and Applications (IPTA)","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5037516750","display_name":"Pedro M. M. Pereira","orcid":"https://orcid.org/0000-0003-3108-8917"},"institutions":[{"id":"https://openalex.org/I169427155","display_name":"Instituto Polit\u00e9cnico de Leiria","ror":"https://ror.org/010dvvh94","country_code":"PT","type":"education","lineage":["https://openalex.org/I169427155"]},{"id":"https://openalex.org/I4210120471","display_name":"Instituto de Telecomunica\u00e7\u00f5es","ror":"https://ror.org/02ht4fk33","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I4210120471"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Pedro M. M. Pereira","raw_affiliation_strings":["Instituto de Telecomunica\u00e7\u00f5es, Portugal","School of Technology and Management, Polytechnic Institute of Leiria, Portugal"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Instituto de Telecomunica\u00e7\u00f5es, Portugal","institution_ids":["https://openalex.org/I4210120471"]},{"raw_affiliation_string":"School of Technology and Management, Polytechnic Institute of Leiria, Portugal","institution_ids":["https://openalex.org/I169427155"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5027677447","display_name":"Patr\u00edcio Domingues","orcid":"https://orcid.org/0000-0002-6207-6292"},"institutions":[{"id":"https://openalex.org/I169427155","display_name":"Instituto Polit\u00e9cnico de Leiria","ror":"https://ror.org/010dvvh94","country_code":"PT","type":"education","lineage":["https://openalex.org/I169427155"]},{"id":"https://openalex.org/I4210120471","display_name":"Instituto de Telecomunica\u00e7\u00f5es","ror":"https://ror.org/02ht4fk33","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I4210120471"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Patricio Domingues","raw_affiliation_strings":["Instituto de Telecomunica\u00e7\u00f5es, Portugal","School of Technology and Management, Polytechnic Institute of Leiria, Portugal"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Instituto de Telecomunica\u00e7\u00f5es, Portugal","institution_ids":["https://openalex.org/I4210120471"]},{"raw_affiliation_string":"School of Technology and Management, Polytechnic Institute of Leiria, Portugal","institution_ids":["https://openalex.org/I169427155"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5086286704","display_name":"Nuno M. M. Rodrigues","orcid":"https://orcid.org/0000-0001-9536-1017"},"institutions":[{"id":"https://openalex.org/I169427155","display_name":"Instituto Polit\u00e9cnico de Leiria","ror":"https://ror.org/010dvvh94","country_code":"PT","type":"education","lineage":["https://openalex.org/I169427155"]},{"id":"https://openalex.org/I4210120471","display_name":"Instituto de Telecomunica\u00e7\u00f5es","ror":"https://ror.org/02ht4fk33","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I4210120471"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Nuno M. M. Rodrigues","raw_affiliation_strings":["Instituto de Telecomunica\u00e7\u00f5es, Portugal","School of Technology and Management, Polytechnic Institute of Leiria, Portugal"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Instituto de Telecomunica\u00e7\u00f5es, Portugal","institution_ids":["https://openalex.org/I4210120471"]},{"raw_affiliation_string":"School of Technology and Management, Polytechnic Institute of Leiria, Portugal","institution_ids":["https://openalex.org/I169427155"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5016506001","display_name":"S\u00e9rgio M. M. de Faria","orcid":"https://orcid.org/0000-0002-0993-9124"},"institutions":[{"id":"https://openalex.org/I169427155","display_name":"Instituto Polit\u00e9cnico de Leiria","ror":"https://ror.org/010dvvh94","country_code":"PT","type":"education","lineage":["https://openalex.org/I169427155"]},{"id":"https://openalex.org/I4210120471","display_name":"Instituto de Telecomunica\u00e7\u00f5es","ror":"https://ror.org/02ht4fk33","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I4210120471"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Sergio M. M. Faria","raw_affiliation_strings":["Instituto de Telecomunica\u00e7\u00f5es, Portugal","School of Technology and Management, Polytechnic Institute of Leiria, Portugal"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Instituto de Telecomunica\u00e7\u00f5es, Portugal","institution_ids":["https://openalex.org/I4210120471"]},{"raw_affiliation_string":"School of Technology and Management, Polytechnic Institute of Leiria, Portugal","institution_ids":["https://openalex.org/I169427155"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5088848663","display_name":"Gabriel Falc\u00e3o","orcid":"https://orcid.org/0000-0001-9805-6747"},"institutions":[{"id":"https://openalex.org/I4210120471","display_name":"Instituto de Telecomunica\u00e7\u00f5es","ror":"https://ror.org/02ht4fk33","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I4210120471"]},{"id":"https://openalex.org/I76903346","display_name":"University of Coimbra","ror":"https://ror.org/04z8k9a98","country_code":"PT","type":"education","lineage":["https://openalex.org/I76903346"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Gabriel Falcao","raw_affiliation_strings":["Dep. of Electrical and Computer Engineering, University of Coimbra, Portugal","Instituto de Telecomunica\u00e7\u00f5es, Portugal"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dep. of Electrical and Computer Engineering, University of Coimbra, Portugal","institution_ids":["https://openalex.org/I76903346"]},{"raw_affiliation_string":"Instituto de Telecomunica\u00e7\u00f5es, Portugal","institution_ids":["https://openalex.org/I4210120471"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"6"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10741","display_name":"Video Coding and Compression Technologies","score":0.9998000264167786,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10741","display_name":"Video Coding and Compression Technologies","score":0.9998000264167786,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11034","display_name":"Digital Filter Design and Implementation","score":0.9972000122070312,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10901","display_name":"Advanced Data Compression Techniques","score":0.996999979019165,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.9096008539199829},{"id":"https://openalex.org/keywords/parallel-computing","display_name":"Parallel computing","score":0.7314848899841309},{"id":"https://openalex.org/keywords/software-portability","display_name":"Software portability","score":0.6680073142051697},{"id":"https://openalex.org/keywords/simd","display_name":"SIMD","score":0.5823252201080322},{"id":"https://openalex.org/keywords/multi-core-processor","display_name":"Multi-core processor","score":0.5750693082809448},{"id":"https://openalex.org/keywords/central-processing-unit","display_name":"Central processing unit","score":0.5708047151565552},{"id":"https://openalex.org/keywords/cuda","display_name":"CUDA","score":0.517036497592926},{"id":"https://openalex.org/keywords/cpu-shielding","display_name":"CPU shielding","score":0.42398780584335327},{"id":"https://openalex.org/keywords/hadamard-transform","display_name":"Hadamard transform","score":0.42097893357276917},{"id":"https://openalex.org/keywords/general-purpose-computing-on-graphics-processing-units","display_name":"General-purpose computing on graphics processing units","score":0.4199475944042206},{"id":"https://openalex.org/keywords/computer-hardware","display_name":"Computer hardware","score":0.183476984500885},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.14928486943244934},{"id":"https://openalex.org/keywords/graphics","display_name":"Graphics","score":0.1342759132385254}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.9096008539199829},{"id":"https://openalex.org/C173608175","wikidata":"https://www.wikidata.org/wiki/Q232661","display_name":"Parallel computing","level":1,"score":0.7314848899841309},{"id":"https://openalex.org/C63000827","wikidata":"https://www.wikidata.org/wiki/Q3080428","display_name":"Software portability","level":2,"score":0.6680073142051697},{"id":"https://openalex.org/C150552126","wikidata":"https://www.wikidata.org/wiki/Q339387","display_name":"SIMD","level":2,"score":0.5823252201080322},{"id":"https://openalex.org/C78766204","wikidata":"https://www.wikidata.org/wiki/Q555032","display_name":"Multi-core processor","level":2,"score":0.5750693082809448},{"id":"https://openalex.org/C49154492","wikidata":"https://www.wikidata.org/wiki/Q5300","display_name":"Central processing unit","level":2,"score":0.5708047151565552},{"id":"https://openalex.org/C2778119891","wikidata":"https://www.wikidata.org/wiki/Q477690","display_name":"CUDA","level":2,"score":0.517036497592926},{"id":"https://openalex.org/C180613757","wikidata":"https://www.wikidata.org/wiki/Q5013757","display_name":"CPU shielding","level":3,"score":0.42398780584335327},{"id":"https://openalex.org/C60292330","wikidata":"https://www.wikidata.org/wiki/Q1014065","display_name":"Hadamard transform","level":2,"score":0.42097893357276917},{"id":"https://openalex.org/C50630238","wikidata":"https://www.wikidata.org/wiki/Q971505","display_name":"General-purpose computing on graphics processing units","level":3,"score":0.4199475944042206},{"id":"https://openalex.org/C9390403","wikidata":"https://www.wikidata.org/wiki/Q3966","display_name":"Computer hardware","level":1,"score":0.183476984500885},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.14928486943244934},{"id":"https://openalex.org/C21442007","wikidata":"https://www.wikidata.org/wiki/Q1027879","display_name":"Graphics","level":2,"score":0.1342759132385254},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/ipta.2016.7820984","is_oa":false,"landing_page_url":"https://doi.org/10.1109/ipta.2016.7820984","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2016 Sixth International Conference on Image Processing Theory, Tools and Applications (IPTA)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","score":0.6100000143051147,"display_name":"Affordable and clean energy"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320321837","display_name":"Ministerio de Econom\u00eda y Competitividad","ror":"https://ror.org/034900433"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":19,"referenced_works":["https://openalex.org/W1487173686","https://openalex.org/W1779006005","https://openalex.org/W1984222112","https://openalex.org/W1995156067","https://openalex.org/W2020068051","https://openalex.org/W2031614119","https://openalex.org/W2040142113","https://openalex.org/W2044636780","https://openalex.org/W2050815140","https://openalex.org/W2053957360","https://openalex.org/W2058116749","https://openalex.org/W2127074672","https://openalex.org/W2133040221","https://openalex.org/W2140199336","https://openalex.org/W2146395539","https://openalex.org/W2159481344","https://openalex.org/W3000120212","https://openalex.org/W4285719527","https://openalex.org/W6629055804"],"related_works":["https://openalex.org/W2387982802","https://openalex.org/W1896942098","https://openalex.org/W1991061790","https://openalex.org/W2088078730","https://openalex.org/W2400763249","https://openalex.org/W1968724572","https://openalex.org/W1482063109","https://openalex.org/W2043940072","https://openalex.org/W2249399447","https://openalex.org/W2061938028"],"abstract_inverted_index":{"The":[0],"Walsh-Hadamard":[1],"transform":[2],"plays":[3],"a":[4,26,52,109,117,136],"major":[5],"role":[6],"in":[7,20,28],"many":[8],"image":[9],"and":[10,62,87,101],"video":[11],"coding":[12],"algorithms.":[13],"In":[14,49],"one":[15],"hand,":[16,38],"its":[17,24,76],"intensive":[18],"use":[19],"these":[21],"algorithms":[22],"makes":[23],"acceleration":[25],"challenge,":[27],"order":[29],"to":[30,126],"speed-up":[31],"the":[32,36,39,56,66,80,148],"algorithm":[33],"execution.":[34],"On":[35],"other":[37],"available":[40],"fast":[41],"implementations":[42],"are":[43],"not":[44],"efficient":[45],"across":[46],"different":[47],"platforms.":[48],"this":[50],"work,":[51],"parallel-based":[53],"implementation":[54],"of":[55],"WHT":[57,96],"is":[58,83],"proposed":[59],"for":[60,85,99,103,151],"CPU":[61,138],"GPU":[63,110],"platforms":[64],"using":[65],"OpenCL":[67,69,149],"standard.":[68],"achieves":[70,142],"portability":[71],"at":[72],"code":[73,82],"level,":[74],"but":[75],"performance":[77,130],"suffers":[78],"when":[79,133],"same":[81],"used":[84],"CPUs":[86],"GPUs.":[88],"To":[89],"achieve":[90],"top":[91],"performance,":[92,144],"we":[93],"propose":[94],"two":[95],"versions:":[97],"OpenCL-GPU":[98,106,129],"GPUs":[100],"OpenCL-CPU":[102,114,141],"CPUs.":[104],"Broadly,":[105],"executed":[107,115],"on":[108,116,135],"runs":[111],"faster":[112],"than":[113],"multicore":[118,137],"CPU,":[119],"with":[120],"speedups":[121],"that":[122],"range":[123],"from":[124],"120.87":[125],"1016.35.":[127],"However,":[128],"drops":[131],"substantially":[132],"ran":[134],"machine,":[139],"where":[140],"higher":[143],"as":[145],"it":[146],"exploits":[147],"support":[150],"SIMD":[152],"instructions.":[153]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":1}],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}
